diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 0c1d4176f9c..0659130cd28 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,18 @@
+2000-07-26  Phil Edwards  <pme@sourceware.cygnus.com>
+
+	* acinclude.m4 (GLIBCPP_CHECK_LINKER_FEATURES):  Test for GNU ld
+	  before trying to use any of its options.
+	  (CHECK_MATH_DECL*,CHECK_BUILTIN_MATH_DECL*):  Cache tests.
+	* aclocal.m4:  Regenerate.
+	* configure.in:  Having found GNU make, name it.
+	* configure:  Regenerate.
+	* docs/install.html:  Mention possible problems with caching.
+	* src/Makefile.am (CXXLINK):  Use new OPT_LDFLAGS.
+	* src/Makefile.in:  Regenerate.
+	* libio/Makefile.in:  Regenerate.
+	* math/Makefile.in:  Regenerate.
+	* Makefile.in:  Regenerate.
+
 2000-07-26  Benjamin Kosnik  <bkoz@purist.soma.redhat.com>
 
 	* src/misc-inst.cc (std): Remove instantiations.
diff --git a/libstdc++-v3/Makefile.in b/libstdc++-v3/Makefile.in
index 968d66e0ad5..22e1f721f95 100644
--- a/libstdc++-v3/Makefile.in
+++ b/libstdc++-v3/Makefile.in
@@ -85,6 +85,7 @@ LN_S = @LN_S@
 MAINT = @MAINT@
 MAKEINFO = @MAKEINFO@
 OBJDUMP = @OBJDUMP@
+OPT_LDFLAGS = @OPT_LDFLAGS@
 PACKAGE = @PACKAGE@
 RANLIB = @RANLIB@
 SECTION_FLAGS = @SECTION_FLAGS@
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index bce263df423..5e80ba769c0 100644
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -253,39 +253,56 @@ AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [
 
 
 dnl
-dnl Check to see if tricky linker opts can be used.
+dnl If GNU ld is in use, check to see if tricky linker opts can be used.  If
+dnl the native linker is in use, all variables will be defined to something
+dnl safe (like an empty string).
+dnl
+dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible.
+dnl Define OPT_LDFLAGS='-Wl,-O1' if possible.
 dnl
-dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible
 dnl GLIBCPP_CHECK_LINKER_FEATURES
 AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [
-  # All these tests are for C++; save the language and the compiler flags.
-  # Need to do this so that g++ won't try to link in libstdc++
-  ac_test_CFLAGS="${CFLAGS+set}"
-  ac_save_CFLAGS="$CFLAGS"
-  CFLAGS='-x c++  -Wl,--gc-sections'
+  # If we're not using GNU ld, then there's no point in even trying these
+  # tests.  Check for that first.  We should have already tested for gld
+  # by now (in libtool), but require it now just to be safe...
+  AC_REQUIRE([AC_PROG_LD])
+  if test "$ac_cv_prog_gnu_ld" = "no"; then
+    SECTION_LDFLAGS=''
+    OPT_LDFLAGS=''
 
-  # Check for -Wl,--gc-sections
-  AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections])
-  AC_TRY_RUN([
-   int main(void) 
-   {
-     try { throw 1; }
-     catch (...) { };
-     return 0;
-   }
-  ], [ac_sectionLDflags=yes], [ac_sectionLFflags=no], [ac_sectionLDflags=yes])
-  if test "$ac_test_CFLAGS" = set; then
-    CFLAGS="$ac_save_CFLAGS"
-  else
-    # this is the suspicious part
-    CFLAGS=''
-  fi
-  if test "$ac_sectionLDflags" = "yes"; then
-    SECTION_LDFLAGS='-Wl,--gc-sections'
-  fi
-  AC_MSG_RESULT($ac_sectionLDflags)
+  else   # GNU ld it is!  Joy and bunny rabbits!
 
+    # All these tests are for C++; save the language and the compiler flags.
+    # Need to do this so that g++ won't try to link in libstdc++
+    ac_test_CFLAGS="${CFLAGS+set}"
+    ac_save_CFLAGS="$CFLAGS"
+    CFLAGS='-x c++  -Wl,--gc-sections'
+
+    # Check for -Wl,--gc-sections
+    AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections])
+    AC_TRY_RUN([
+     int main(void) 
+     {
+       try { throw 1; }
+       catch (...) { };
+       return 0;
+     }
+    ], [ac_sectionLDflags=yes], [ac_sectionLFflags=no], [ac_sectionLDflags=yes])
+    if test "$ac_test_CFLAGS" = set; then
+      CFLAGS="$ac_save_CFLAGS"
+    else
+      # this is the suspicious part
+      CFLAGS=''
+    fi
+    if test "$ac_sectionLDflags" = "yes"; then
+      SECTION_LDFLAGS='-Wl,--gc-sections'
+    fi
+    AC_MSG_RESULT($ac_sectionLDflags)
+    OPT_LDFLAGS='-Wl,-O1'
+
+  fi
   AC_SUBST(SECTION_LDFLAGS)
+  AC_SUBST(OPT_LDFLAGS)
 ])
 
 
@@ -302,15 +319,17 @@ dnl ASSUMES argument is a math function with ONE parameter
 dnl
 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1
 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [
-  AC_LANG_SAVE
-  AC_LANG_CPLUSPLUS
   AC_MSG_CHECKING([for $1 declaration])
-  AC_TRY_COMPILE([#include <math.h>], 
-  [ $1(0);], 
-  [use_$1=yes], [use_$1=no])
-  AC_MSG_RESULT($use_$1)
-  AC_LANG_RESTORE
-  if test x$use_$1 = x"yes"; then
+  AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
+    AC_LANG_SAVE
+    AC_LANG_CPLUSPLUS
+    AC_TRY_COMPILE([#include <math.h>], 
+                   [ $1(0);], 
+                   [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
+    AC_LANG_RESTORE
+  ])
+  AC_MSG_RESULT($glibcpp_cv_func_$1_use)
+  if test x$glibcpp_cv_func_$1_use = x"yes"; then
     AC_CHECK_FUNCS($1)    
   fi
 ])
@@ -329,15 +348,17 @@ dnl ASSUMES argument is a math function with TWO parameters
 dnl
 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2
 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [
-  AC_LANG_SAVE
-  AC_LANG_CPLUSPLUS
   AC_MSG_CHECKING([for $1 declaration])
-  AC_TRY_COMPILE([#include <math.h>], 
-  [ $1(0, 0);], 
-  [use_$1=yes], [use_$1=no])
-  AC_MSG_RESULT($use_$1)
-  AC_LANG_RESTORE
-  if test x$use_$1 = x"yes"; then
+  AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
+    AC_LANG_SAVE
+    AC_LANG_CPLUSPLUS
+    AC_TRY_COMPILE([#include <math.h>], 
+                   [ $1(0, 0);], 
+                   [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
+    AC_LANG_RESTORE
+  ])
+  AC_MSG_RESULT($glibcpp_cv_func_$1_use)
+  if test x$glibcpp_cv_func_$1_use = x"yes"; then
     AC_CHECK_FUNCS($1)    
   fi
 ])
@@ -356,15 +377,17 @@ dnl ASSUMES argument is a math function with THREE parameters
 dnl
 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3
 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [
-  AC_LANG_SAVE
-  AC_LANG_CPLUSPLUS
   AC_MSG_CHECKING([for $1 declaration])
-  AC_TRY_COMPILE([#include <math.h>], 
-  [ $1(0, 0, 0);], 
-  [use_$1=yes], [use_$1=no])
-  AC_MSG_RESULT($use_$1)
-  AC_LANG_RESTORE
-  if test x$use_$1 = x"yes"; then
+  AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
+    AC_LANG_SAVE
+    AC_LANG_CPLUSPLUS
+    AC_TRY_COMPILE([#include <math.h>], 
+                   [ $1(0, 0, 0);], 
+                   [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
+    AC_LANG_RESTORE
+  ])
+  AC_MSG_RESULT($glibcpp_cv_func_$1_use)
+  if test x$glibcpp_cv_func_$1_use = x"yes"; then
     AC_CHECK_FUNCS($1)    
   fi
 ])
@@ -385,21 +408,25 @@ dnl ASSUMES argument is a math function with ONE parameter
 dnl
 dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1
 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [
-  AC_LANG_SAVE
-  AC_LANG_CPLUSPLUS
   AC_MSG_CHECKING([for $1 declaration])
-  AC_TRY_COMPILE([#include <math.h>], 
-  [ $1(0);], 
-  [use_$1=yes], [use_$1=no])
-  AC_MSG_RESULT($use_$1)
-  AC_LANG_RESTORE
-  if test x$use_$1 = x"yes"; then
+  AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
+    AC_LANG_SAVE
+    AC_LANG_CPLUSPLUS
+    AC_TRY_COMPILE([#include <math.h>], 
+                   [ $1(0);], 
+                   [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
+    AC_LANG_RESTORE
+  ])
+  AC_MSG_RESULT($glibcpp_cv_func_$1_use)
+  if test x$glibcpp_cv_func_$1_use = x"yes"; then
     AC_MSG_CHECKING([for $1 linkage])
+    AC_CACHE_VAL(glibcpp_cv_func_$1_link, [
       AC_TRY_LINK([#include <math.h>], 
-      [ $1(0);],
-      [link_$1=yes], [link_$1=no])
-    AC_MSG_RESULT($link_$1)
-    if test x$link_$1 = x"yes"; then
+                  [ $1(0);], 
+                  [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no])
+    ])
+    AC_MSG_RESULT($glibcpp_cv_func_$1_link)
+    if test x$glibcpp_cv_func_$1_link = x"yes"; then
       ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
       AC_DEFINE_UNQUOTED(${ac_tr_func})
     fi
@@ -1521,7 +1548,7 @@ dnl Then, if any (well almost any) other make is called, and GNU make also
 dnl exists, then the other make wraps the GNU make.
 dnl
 dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au>
-dnl @version $Id: acinclude.m4,v 1.47 2000/07/26 06:51:37 bkoz Exp $
+dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme
 dnl
 dnl #### Changes for libstdc++-v3:  reformatting and linewrapping; prepending
 dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the
diff --git a/libstdc++-v3/aclocal.m4 b/libstdc++-v3/aclocal.m4
index e131dd37692..fdddfda8040 100644
--- a/libstdc++-v3/aclocal.m4
+++ b/libstdc++-v3/aclocal.m4
@@ -265,39 +265,56 @@ AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [
 
 
 dnl
-dnl Check to see if tricky linker opts can be used.
+dnl If GNU ld is in use, check to see if tricky linker opts can be used.  If
+dnl the native linker is in use, all variables will be defined to something
+dnl safe (like an empty string).
+dnl
+dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible.
+dnl Define OPT_LDFLAGS='-Wl,-O1' if possible.
 dnl
-dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible
 dnl GLIBCPP_CHECK_LINKER_FEATURES
 AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [
-  # All these tests are for C++; save the language and the compiler flags.
-  # Need to do this so that g++ won't try to link in libstdc++
-  ac_test_CFLAGS="${CFLAGS+set}"
-  ac_save_CFLAGS="$CFLAGS"
-  CFLAGS='-x c++  -Wl,--gc-sections'
+  # If we're not using GNU ld, then there's no point in even trying these
+  # tests.  Check for that first.  We should have already tested for gld
+  # by now (in libtool), but require it now just to be safe...
+  AC_REQUIRE([AC_PROG_LD])
+  if test "$ac_cv_prog_gnu_ld" = "no"; then
+    SECTION_LDFLAGS=''
+    OPT_LDFLAGS=''
 
-  # Check for -Wl,--gc-sections
-  AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections])
-  AC_TRY_RUN([
-   int main(void) 
-   {
-     try { throw 1; }
-     catch (...) { };
-     return 0;
-   }
-  ], [ac_sectionLDflags=yes], [ac_sectionLFflags=no], [ac_sectionLDflags=yes])
-  if test "$ac_test_CFLAGS" = set; then
-    CFLAGS="$ac_save_CFLAGS"
-  else
-    # this is the suspicious part
-    CFLAGS=''
-  fi
-  if test "$ac_sectionLDflags" = "yes"; then
-    SECTION_LDFLAGS='-Wl,--gc-sections'
-  fi
-  AC_MSG_RESULT($ac_sectionLDflags)
+  else   # GNU ld it is!  Joy and bunny rabbits!
 
+    # All these tests are for C++; save the language and the compiler flags.
+    # Need to do this so that g++ won't try to link in libstdc++
+    ac_test_CFLAGS="${CFLAGS+set}"
+    ac_save_CFLAGS="$CFLAGS"
+    CFLAGS='-x c++  -Wl,--gc-sections'
+
+    # Check for -Wl,--gc-sections
+    AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections])
+    AC_TRY_RUN([
+     int main(void) 
+     {
+       try { throw 1; }
+       catch (...) { };
+       return 0;
+     }
+    ], [ac_sectionLDflags=yes], [ac_sectionLFflags=no], [ac_sectionLDflags=yes])
+    if test "$ac_test_CFLAGS" = set; then
+      CFLAGS="$ac_save_CFLAGS"
+    else
+      # this is the suspicious part
+      CFLAGS=''
+    fi
+    if test "$ac_sectionLDflags" = "yes"; then
+      SECTION_LDFLAGS='-Wl,--gc-sections'
+    fi
+    AC_MSG_RESULT($ac_sectionLDflags)
+    OPT_LDFLAGS='-Wl,-O1'
+
+  fi
   AC_SUBST(SECTION_LDFLAGS)
+  AC_SUBST(OPT_LDFLAGS)
 ])
 
 
@@ -314,15 +331,17 @@ dnl ASSUMES argument is a math function with ONE parameter
 dnl
 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1
 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [
-  AC_LANG_SAVE
-  AC_LANG_CPLUSPLUS
   AC_MSG_CHECKING([for $1 declaration])
-  AC_TRY_COMPILE([#include <math.h>], 
-  [ $1(0);], 
-  [use_$1=yes], [use_$1=no])
-  AC_MSG_RESULT($use_$1)
-  AC_LANG_RESTORE
-  if test x$use_$1 = x"yes"; then
+  AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
+    AC_LANG_SAVE
+    AC_LANG_CPLUSPLUS
+    AC_TRY_COMPILE([#include <math.h>], 
+                   [ $1(0);], 
+                   [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
+    AC_LANG_RESTORE
+  ])
+  AC_MSG_RESULT($glibcpp_cv_func_$1_use)
+  if test x$glibcpp_cv_func_$1_use = x"yes"; then
     AC_CHECK_FUNCS($1)    
   fi
 ])
@@ -341,15 +360,17 @@ dnl ASSUMES argument is a math function with TWO parameters
 dnl
 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2
 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [
-  AC_LANG_SAVE
-  AC_LANG_CPLUSPLUS
   AC_MSG_CHECKING([for $1 declaration])
-  AC_TRY_COMPILE([#include <math.h>], 
-  [ $1(0, 0);], 
-  [use_$1=yes], [use_$1=no])
-  AC_MSG_RESULT($use_$1)
-  AC_LANG_RESTORE
-  if test x$use_$1 = x"yes"; then
+  AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
+    AC_LANG_SAVE
+    AC_LANG_CPLUSPLUS
+    AC_TRY_COMPILE([#include <math.h>], 
+                   [ $1(0, 0);], 
+                   [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
+    AC_LANG_RESTORE
+  ])
+  AC_MSG_RESULT($glibcpp_cv_func_$1_use)
+  if test x$glibcpp_cv_func_$1_use = x"yes"; then
     AC_CHECK_FUNCS($1)    
   fi
 ])
@@ -368,15 +389,17 @@ dnl ASSUMES argument is a math function with THREE parameters
 dnl
 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3
 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [
-  AC_LANG_SAVE
-  AC_LANG_CPLUSPLUS
   AC_MSG_CHECKING([for $1 declaration])
-  AC_TRY_COMPILE([#include <math.h>], 
-  [ $1(0, 0, 0);], 
-  [use_$1=yes], [use_$1=no])
-  AC_MSG_RESULT($use_$1)
-  AC_LANG_RESTORE
-  if test x$use_$1 = x"yes"; then
+  AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
+    AC_LANG_SAVE
+    AC_LANG_CPLUSPLUS
+    AC_TRY_COMPILE([#include <math.h>], 
+                   [ $1(0, 0, 0);], 
+                   [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
+    AC_LANG_RESTORE
+  ])
+  AC_MSG_RESULT($glibcpp_cv_func_$1_use)
+  if test x$glibcpp_cv_func_$1_use = x"yes"; then
     AC_CHECK_FUNCS($1)    
   fi
 ])
@@ -397,21 +420,25 @@ dnl ASSUMES argument is a math function with ONE parameter
 dnl
 dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1
 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [
-  AC_LANG_SAVE
-  AC_LANG_CPLUSPLUS
   AC_MSG_CHECKING([for $1 declaration])
-  AC_TRY_COMPILE([#include <math.h>], 
-  [ $1(0);], 
-  [use_$1=yes], [use_$1=no])
-  AC_MSG_RESULT($use_$1)
-  AC_LANG_RESTORE
-  if test x$use_$1 = x"yes"; then
+  AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
+    AC_LANG_SAVE
+    AC_LANG_CPLUSPLUS
+    AC_TRY_COMPILE([#include <math.h>], 
+                   [ $1(0);], 
+                   [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
+    AC_LANG_RESTORE
+  ])
+  AC_MSG_RESULT($glibcpp_cv_func_$1_use)
+  if test x$glibcpp_cv_func_$1_use = x"yes"; then
     AC_MSG_CHECKING([for $1 linkage])
+    AC_CACHE_VAL(glibcpp_cv_func_$1_link, [
       AC_TRY_LINK([#include <math.h>], 
-      [ $1(0);],
-      [link_$1=yes], [link_$1=no])
-    AC_MSG_RESULT($link_$1)
-    if test x$link_$1 = x"yes"; then
+                  [ $1(0);], 
+                  [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no])
+    ])
+    AC_MSG_RESULT($glibcpp_cv_func_$1_link)
+    if test x$glibcpp_cv_func_$1_link = x"yes"; then
       ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
       AC_DEFINE_UNQUOTED(${ac_tr_func})
     fi
@@ -1533,7 +1560,7 @@ dnl Then, if any (well almost any) other make is called, and GNU make also
 dnl exists, then the other make wraps the GNU make.
 dnl
 dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au>
-dnl @version $Id: acinclude.m4,v 1.47 2000/07/26 06:51:37 bkoz Exp $
+dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme
 dnl
 dnl #### Changes for libstdc++-v3:  reformatting and linewrapping; prepending
 dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the
diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index e62bf33fa48..cd73eec7f22 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -2911,31 +2911,41 @@ cross_compiling=$ac_cv_prog_cc_cross
   
 
   
-  # All these tests are for C++; save the language and the compiler flags.
-  # Need to do this so that g++ won't try to link in libstdc++
-  ac_test_CFLAGS="${CFLAGS+set}"
-  ac_save_CFLAGS="$CFLAGS"
-  CFLAGS='-x c++  -Wl,--gc-sections'
+  # If we're not using GNU ld, then there's no point in even trying these
+  # tests.  Check for that first.  We should have already tested for gld
+  # by now (in libtool), but require it now just to be safe...
+  
+  if test "$ac_cv_prog_gnu_ld" = "no"; then
+    SECTION_LDFLAGS=''
+    OPT_LDFLAGS=''
 
-  # Check for -Wl,--gc-sections
-  echo $ac_n "checking for ld that supports -Wl,--gc-sections""... $ac_c" 1>&6
-echo "configure:2923: checking for ld that supports -Wl,--gc-sections" >&5
-  if test "$cross_compiling" = yes; then
+  else   # GNU ld it is!  Joy and bunny rabbits!
+
+    # All these tests are for C++; save the language and the compiler flags.
+    # Need to do this so that g++ won't try to link in libstdc++
+    ac_test_CFLAGS="${CFLAGS+set}"
+    ac_save_CFLAGS="$CFLAGS"
+    CFLAGS='-x c++  -Wl,--gc-sections'
+
+    # Check for -Wl,--gc-sections
+    echo $ac_n "checking for ld that supports -Wl,--gc-sections""... $ac_c" 1>&6
+echo "configure:2933: checking for ld that supports -Wl,--gc-sections" >&5
+    if test "$cross_compiling" = yes; then
   ac_sectionLDflags=yes
 else
   cat > conftest.$ac_ext <<EOF
-#line 2928 "configure"
+#line 2938 "configure"
 #include "confdefs.h"
 
-   int main(void) 
-   {
-     try { throw 1; }
-     catch (...) { };
-     return 0;
-   }
-  
+     int main(void) 
+     {
+       try { throw 1; }
+       catch (...) { };
+       return 0;
+     }
+    
 EOF
-if { (eval echo configure:2939: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2949: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_sectionLDflags=yes
 else
@@ -2947,80 +2957,97 @@ fi
 rm -fr conftest*
 fi
 
-  if test "$ac_test_CFLAGS" = set; then
-    CFLAGS="$ac_save_CFLAGS"
-  else
-    # this is the suspicious part
-    CFLAGS=''
-  fi
-  if test "$ac_sectionLDflags" = "yes"; then
-    SECTION_LDFLAGS='-Wl,--gc-sections'
-  fi
-  echo "$ac_t""$ac_sectionLDflags" 1>&6
+    if test "$ac_test_CFLAGS" = set; then
+      CFLAGS="$ac_save_CFLAGS"
+    else
+      # this is the suspicious part
+      CFLAGS=''
+    fi
+    if test "$ac_sectionLDflags" = "yes"; then
+      SECTION_LDFLAGS='-Wl,--gc-sections'
+    fi
+    echo "$ac_t""$ac_sectionLDflags" 1>&6
+    OPT_LDFLAGS='-Wl,-O1'
 
+  fi
+  
   
 
   
       
+  echo $ac_n "checking for __builtin_abs declaration""... $ac_c" 1>&6
+echo "configure:2980: checking for __builtin_abs declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_abs_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for __builtin_abs declaration""... $ac_c" 1>&6
-echo "configure:2975: checking for __builtin_abs declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 2977 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 2994 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_abs(0);
 ; return 0; }
 EOF
-if { (eval echo configure:2984: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3001: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use___builtin_abs=yes
+  glibcpp_cv_func___builtin_abs_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use___builtin_abs=no
+  glibcpp_cv_func___builtin_abs_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use___builtin_abs" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use___builtin_abs = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func___builtin_abs_use" 1>&6
+  if test x$glibcpp_cv_func___builtin_abs_use = x"yes"; then
     echo $ac_n "checking for __builtin_abs linkage""... $ac_c" 1>&6
-echo "configure:3004: checking for __builtin_abs linkage" >&5
+echo "configure:3024: checking for __builtin_abs linkage" >&5
+    if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_abs_link'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
       cat > conftest.$ac_ext <<EOF
-#line 3006 "configure"
+#line 3030 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_abs(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3013: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3037: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
-  link___builtin_abs=yes
+  glibcpp_cv_func___builtin_abs_link=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  link___builtin_abs=no
+  glibcpp_cv_func___builtin_abs_link=no
 fi
 rm -f conftest*
-    echo "$ac_t""$link___builtin_abs" 1>&6
-    if test x$link___builtin_abs = x"yes"; then
+    
+fi
+
+    echo "$ac_t""$glibcpp_cv_func___builtin_abs_link" 1>&6
+    if test x$glibcpp_cv_func___builtin_abs_link = x"yes"; then
       ac_tr_func=HAVE_`echo __builtin_abs | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
       cat >> confdefs.h <<EOF
 #define ${ac_tr_func} 1
@@ -3030,65 +3057,79 @@ EOF
   fi
 
   
+  echo $ac_n "checking for __builtin_fabsf declaration""... $ac_c" 1>&6
+echo "configure:3062: checking for __builtin_fabsf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_fabsf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for __builtin_fabsf declaration""... $ac_c" 1>&6
-echo "configure:3043: checking for __builtin_fabsf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 3045 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 3076 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_fabsf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3052: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3083: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use___builtin_fabsf=yes
+  glibcpp_cv_func___builtin_fabsf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use___builtin_fabsf=no
+  glibcpp_cv_func___builtin_fabsf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use___builtin_fabsf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use___builtin_fabsf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func___builtin_fabsf_use" 1>&6
+  if test x$glibcpp_cv_func___builtin_fabsf_use = x"yes"; then
     echo $ac_n "checking for __builtin_fabsf linkage""... $ac_c" 1>&6
-echo "configure:3072: checking for __builtin_fabsf linkage" >&5
+echo "configure:3106: checking for __builtin_fabsf linkage" >&5
+    if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_fabsf_link'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
       cat > conftest.$ac_ext <<EOF
-#line 3074 "configure"
+#line 3112 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_fabsf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3081: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3119: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
-  link___builtin_fabsf=yes
+  glibcpp_cv_func___builtin_fabsf_link=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  link___builtin_fabsf=no
+  glibcpp_cv_func___builtin_fabsf_link=no
 fi
 rm -f conftest*
-    echo "$ac_t""$link___builtin_fabsf" 1>&6
-    if test x$link___builtin_fabsf = x"yes"; then
+    
+fi
+
+    echo "$ac_t""$glibcpp_cv_func___builtin_fabsf_link" 1>&6
+    if test x$glibcpp_cv_func___builtin_fabsf_link = x"yes"; then
       ac_tr_func=HAVE_`echo __builtin_fabsf | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
       cat >> confdefs.h <<EOF
 #define ${ac_tr_func} 1
@@ -3098,65 +3139,79 @@ EOF
   fi
 
   
+  echo $ac_n "checking for __builtin_fabs declaration""... $ac_c" 1>&6
+echo "configure:3144: checking for __builtin_fabs declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_fabs_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for __builtin_fabs declaration""... $ac_c" 1>&6
-echo "configure:3111: checking for __builtin_fabs declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 3113 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 3158 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_fabs(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3120: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3165: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use___builtin_fabs=yes
+  glibcpp_cv_func___builtin_fabs_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use___builtin_fabs=no
+  glibcpp_cv_func___builtin_fabs_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use___builtin_fabs" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use___builtin_fabs = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func___builtin_fabs_use" 1>&6
+  if test x$glibcpp_cv_func___builtin_fabs_use = x"yes"; then
     echo $ac_n "checking for __builtin_fabs linkage""... $ac_c" 1>&6
-echo "configure:3140: checking for __builtin_fabs linkage" >&5
+echo "configure:3188: checking for __builtin_fabs linkage" >&5
+    if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_fabs_link'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
       cat > conftest.$ac_ext <<EOF
-#line 3142 "configure"
+#line 3194 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_fabs(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3149: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3201: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
-  link___builtin_fabs=yes
+  glibcpp_cv_func___builtin_fabs_link=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  link___builtin_fabs=no
+  glibcpp_cv_func___builtin_fabs_link=no
 fi
 rm -f conftest*
-    echo "$ac_t""$link___builtin_fabs" 1>&6
-    if test x$link___builtin_fabs = x"yes"; then
+    
+fi
+
+    echo "$ac_t""$glibcpp_cv_func___builtin_fabs_link" 1>&6
+    if test x$glibcpp_cv_func___builtin_fabs_link = x"yes"; then
       ac_tr_func=HAVE_`echo __builtin_fabs | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
       cat >> confdefs.h <<EOF
 #define ${ac_tr_func} 1
@@ -3166,65 +3221,79 @@ EOF
   fi
 
   
+  echo $ac_n "checking for __builtin_fabsl declaration""... $ac_c" 1>&6
+echo "configure:3226: checking for __builtin_fabsl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_fabsl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for __builtin_fabsl declaration""... $ac_c" 1>&6
-echo "configure:3179: checking for __builtin_fabsl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 3181 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 3240 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_fabsl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3188: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3247: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use___builtin_fabsl=yes
+  glibcpp_cv_func___builtin_fabsl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use___builtin_fabsl=no
+  glibcpp_cv_func___builtin_fabsl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use___builtin_fabsl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use___builtin_fabsl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func___builtin_fabsl_use" 1>&6
+  if test x$glibcpp_cv_func___builtin_fabsl_use = x"yes"; then
     echo $ac_n "checking for __builtin_fabsl linkage""... $ac_c" 1>&6
-echo "configure:3208: checking for __builtin_fabsl linkage" >&5
+echo "configure:3270: checking for __builtin_fabsl linkage" >&5
+    if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_fabsl_link'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
       cat > conftest.$ac_ext <<EOF
-#line 3210 "configure"
+#line 3276 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_fabsl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3217: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3283: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
-  link___builtin_fabsl=yes
+  glibcpp_cv_func___builtin_fabsl_link=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  link___builtin_fabsl=no
+  glibcpp_cv_func___builtin_fabsl_link=no
 fi
 rm -f conftest*
-    echo "$ac_t""$link___builtin_fabsl" 1>&6
-    if test x$link___builtin_fabsl = x"yes"; then
+    
+fi
+
+    echo "$ac_t""$glibcpp_cv_func___builtin_fabsl_link" 1>&6
+    if test x$glibcpp_cv_func___builtin_fabsl_link = x"yes"; then
       ac_tr_func=HAVE_`echo __builtin_fabsl | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
       cat >> confdefs.h <<EOF
 #define ${ac_tr_func} 1
@@ -3234,65 +3303,79 @@ EOF
   fi
 
   
+  echo $ac_n "checking for __builtin_labs declaration""... $ac_c" 1>&6
+echo "configure:3308: checking for __builtin_labs declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_labs_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for __builtin_labs declaration""... $ac_c" 1>&6
-echo "configure:3247: checking for __builtin_labs declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 3249 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 3322 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_labs(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3256: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3329: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use___builtin_labs=yes
+  glibcpp_cv_func___builtin_labs_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use___builtin_labs=no
+  glibcpp_cv_func___builtin_labs_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use___builtin_labs" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use___builtin_labs = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func___builtin_labs_use" 1>&6
+  if test x$glibcpp_cv_func___builtin_labs_use = x"yes"; then
     echo $ac_n "checking for __builtin_labs linkage""... $ac_c" 1>&6
-echo "configure:3276: checking for __builtin_labs linkage" >&5
+echo "configure:3352: checking for __builtin_labs linkage" >&5
+    if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_labs_link'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
       cat > conftest.$ac_ext <<EOF
-#line 3278 "configure"
+#line 3358 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_labs(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3285: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3365: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
-  link___builtin_labs=yes
+  glibcpp_cv_func___builtin_labs_link=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  link___builtin_labs=no
+  glibcpp_cv_func___builtin_labs_link=no
 fi
 rm -f conftest*
-    echo "$ac_t""$link___builtin_labs" 1>&6
-    if test x$link___builtin_labs = x"yes"; then
+    
+fi
+
+    echo "$ac_t""$glibcpp_cv_func___builtin_labs_link" 1>&6
+    if test x$glibcpp_cv_func___builtin_labs_link = x"yes"; then
       ac_tr_func=HAVE_`echo __builtin_labs | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
       cat >> confdefs.h <<EOF
 #define ${ac_tr_func} 1
@@ -3303,65 +3386,79 @@ EOF
 
 
   
+  echo $ac_n "checking for __builtin_sqrtf declaration""... $ac_c" 1>&6
+echo "configure:3391: checking for __builtin_sqrtf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sqrtf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for __builtin_sqrtf declaration""... $ac_c" 1>&6
-echo "configure:3316: checking for __builtin_sqrtf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 3318 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 3405 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sqrtf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3325: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3412: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use___builtin_sqrtf=yes
+  glibcpp_cv_func___builtin_sqrtf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use___builtin_sqrtf=no
+  glibcpp_cv_func___builtin_sqrtf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use___builtin_sqrtf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use___builtin_sqrtf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func___builtin_sqrtf_use" 1>&6
+  if test x$glibcpp_cv_func___builtin_sqrtf_use = x"yes"; then
     echo $ac_n "checking for __builtin_sqrtf linkage""... $ac_c" 1>&6
-echo "configure:3345: checking for __builtin_sqrtf linkage" >&5
+echo "configure:3435: checking for __builtin_sqrtf linkage" >&5
+    if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sqrtf_link'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
       cat > conftest.$ac_ext <<EOF
-#line 3347 "configure"
+#line 3441 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sqrtf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3354: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3448: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
-  link___builtin_sqrtf=yes
+  glibcpp_cv_func___builtin_sqrtf_link=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  link___builtin_sqrtf=no
+  glibcpp_cv_func___builtin_sqrtf_link=no
 fi
 rm -f conftest*
-    echo "$ac_t""$link___builtin_sqrtf" 1>&6
-    if test x$link___builtin_sqrtf = x"yes"; then
+    
+fi
+
+    echo "$ac_t""$glibcpp_cv_func___builtin_sqrtf_link" 1>&6
+    if test x$glibcpp_cv_func___builtin_sqrtf_link = x"yes"; then
       ac_tr_func=HAVE_`echo __builtin_sqrtf | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
       cat >> confdefs.h <<EOF
 #define ${ac_tr_func} 1
@@ -3371,65 +3468,79 @@ EOF
   fi
 
   
+  echo $ac_n "checking for __builtin_fsqrt declaration""... $ac_c" 1>&6
+echo "configure:3473: checking for __builtin_fsqrt declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_fsqrt_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for __builtin_fsqrt declaration""... $ac_c" 1>&6
-echo "configure:3384: checking for __builtin_fsqrt declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 3386 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 3487 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_fsqrt(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3393: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3494: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use___builtin_fsqrt=yes
+  glibcpp_cv_func___builtin_fsqrt_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use___builtin_fsqrt=no
+  glibcpp_cv_func___builtin_fsqrt_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use___builtin_fsqrt" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use___builtin_fsqrt = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func___builtin_fsqrt_use" 1>&6
+  if test x$glibcpp_cv_func___builtin_fsqrt_use = x"yes"; then
     echo $ac_n "checking for __builtin_fsqrt linkage""... $ac_c" 1>&6
-echo "configure:3413: checking for __builtin_fsqrt linkage" >&5
+echo "configure:3517: checking for __builtin_fsqrt linkage" >&5
+    if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_fsqrt_link'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
       cat > conftest.$ac_ext <<EOF
-#line 3415 "configure"
+#line 3523 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_fsqrt(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3422: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3530: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
-  link___builtin_fsqrt=yes
+  glibcpp_cv_func___builtin_fsqrt_link=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  link___builtin_fsqrt=no
+  glibcpp_cv_func___builtin_fsqrt_link=no
 fi
 rm -f conftest*
-    echo "$ac_t""$link___builtin_fsqrt" 1>&6
-    if test x$link___builtin_fsqrt = x"yes"; then
+    
+fi
+
+    echo "$ac_t""$glibcpp_cv_func___builtin_fsqrt_link" 1>&6
+    if test x$glibcpp_cv_func___builtin_fsqrt_link = x"yes"; then
       ac_tr_func=HAVE_`echo __builtin_fsqrt | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
       cat >> confdefs.h <<EOF
 #define ${ac_tr_func} 1
@@ -3439,65 +3550,79 @@ EOF
   fi
 
   
+  echo $ac_n "checking for __builtin_sqrtl declaration""... $ac_c" 1>&6
+echo "configure:3555: checking for __builtin_sqrtl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sqrtl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for __builtin_sqrtl declaration""... $ac_c" 1>&6
-echo "configure:3452: checking for __builtin_sqrtl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 3454 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 3569 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sqrtl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3461: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3576: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use___builtin_sqrtl=yes
+  glibcpp_cv_func___builtin_sqrtl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use___builtin_sqrtl=no
+  glibcpp_cv_func___builtin_sqrtl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use___builtin_sqrtl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use___builtin_sqrtl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func___builtin_sqrtl_use" 1>&6
+  if test x$glibcpp_cv_func___builtin_sqrtl_use = x"yes"; then
     echo $ac_n "checking for __builtin_sqrtl linkage""... $ac_c" 1>&6
-echo "configure:3481: checking for __builtin_sqrtl linkage" >&5
+echo "configure:3599: checking for __builtin_sqrtl linkage" >&5
+    if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sqrtl_link'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
       cat > conftest.$ac_ext <<EOF
-#line 3483 "configure"
+#line 3605 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sqrtl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3490: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3612: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
-  link___builtin_sqrtl=yes
+  glibcpp_cv_func___builtin_sqrtl_link=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  link___builtin_sqrtl=no
+  glibcpp_cv_func___builtin_sqrtl_link=no
 fi
 rm -f conftest*
-    echo "$ac_t""$link___builtin_sqrtl" 1>&6
-    if test x$link___builtin_sqrtl = x"yes"; then
+    
+fi
+
+    echo "$ac_t""$glibcpp_cv_func___builtin_sqrtl_link" 1>&6
+    if test x$glibcpp_cv_func___builtin_sqrtl_link = x"yes"; then
       ac_tr_func=HAVE_`echo __builtin_sqrtl | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
       cat >> confdefs.h <<EOF
 #define ${ac_tr_func} 1
@@ -3508,65 +3633,79 @@ EOF
 
 
   
+  echo $ac_n "checking for __builtin_sinf declaration""... $ac_c" 1>&6
+echo "configure:3638: checking for __builtin_sinf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sinf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for __builtin_sinf declaration""... $ac_c" 1>&6
-echo "configure:3521: checking for __builtin_sinf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 3523 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 3652 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sinf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3530: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3659: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use___builtin_sinf=yes
+  glibcpp_cv_func___builtin_sinf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use___builtin_sinf=no
+  glibcpp_cv_func___builtin_sinf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use___builtin_sinf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use___builtin_sinf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func___builtin_sinf_use" 1>&6
+  if test x$glibcpp_cv_func___builtin_sinf_use = x"yes"; then
     echo $ac_n "checking for __builtin_sinf linkage""... $ac_c" 1>&6
-echo "configure:3550: checking for __builtin_sinf linkage" >&5
+echo "configure:3682: checking for __builtin_sinf linkage" >&5
+    if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sinf_link'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
       cat > conftest.$ac_ext <<EOF
-#line 3552 "configure"
+#line 3688 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sinf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3559: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3695: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
-  link___builtin_sinf=yes
+  glibcpp_cv_func___builtin_sinf_link=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  link___builtin_sinf=no
+  glibcpp_cv_func___builtin_sinf_link=no
 fi
 rm -f conftest*
-    echo "$ac_t""$link___builtin_sinf" 1>&6
-    if test x$link___builtin_sinf = x"yes"; then
+    
+fi
+
+    echo "$ac_t""$glibcpp_cv_func___builtin_sinf_link" 1>&6
+    if test x$glibcpp_cv_func___builtin_sinf_link = x"yes"; then
       ac_tr_func=HAVE_`echo __builtin_sinf | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
       cat >> confdefs.h <<EOF
 #define ${ac_tr_func} 1
@@ -3576,65 +3715,79 @@ EOF
   fi
 
   
+  echo $ac_n "checking for __builtin_sin declaration""... $ac_c" 1>&6
+echo "configure:3720: checking for __builtin_sin declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sin_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for __builtin_sin declaration""... $ac_c" 1>&6
-echo "configure:3589: checking for __builtin_sin declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 3591 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 3734 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sin(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3598: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3741: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use___builtin_sin=yes
+  glibcpp_cv_func___builtin_sin_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use___builtin_sin=no
+  glibcpp_cv_func___builtin_sin_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use___builtin_sin" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use___builtin_sin = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func___builtin_sin_use" 1>&6
+  if test x$glibcpp_cv_func___builtin_sin_use = x"yes"; then
     echo $ac_n "checking for __builtin_sin linkage""... $ac_c" 1>&6
-echo "configure:3618: checking for __builtin_sin linkage" >&5
+echo "configure:3764: checking for __builtin_sin linkage" >&5
+    if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sin_link'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
       cat > conftest.$ac_ext <<EOF
-#line 3620 "configure"
+#line 3770 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sin(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3627: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3777: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
-  link___builtin_sin=yes
+  glibcpp_cv_func___builtin_sin_link=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  link___builtin_sin=no
+  glibcpp_cv_func___builtin_sin_link=no
 fi
 rm -f conftest*
-    echo "$ac_t""$link___builtin_sin" 1>&6
-    if test x$link___builtin_sin = x"yes"; then
+    
+fi
+
+    echo "$ac_t""$glibcpp_cv_func___builtin_sin_link" 1>&6
+    if test x$glibcpp_cv_func___builtin_sin_link = x"yes"; then
       ac_tr_func=HAVE_`echo __builtin_sin | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
       cat >> confdefs.h <<EOF
 #define ${ac_tr_func} 1
@@ -3644,65 +3797,79 @@ EOF
   fi
 
   
+  echo $ac_n "checking for __builtin_sinl declaration""... $ac_c" 1>&6
+echo "configure:3802: checking for __builtin_sinl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sinl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for __builtin_sinl declaration""... $ac_c" 1>&6
-echo "configure:3657: checking for __builtin_sinl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 3659 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 3816 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sinl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3666: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3823: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use___builtin_sinl=yes
+  glibcpp_cv_func___builtin_sinl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use___builtin_sinl=no
+  glibcpp_cv_func___builtin_sinl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use___builtin_sinl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use___builtin_sinl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func___builtin_sinl_use" 1>&6
+  if test x$glibcpp_cv_func___builtin_sinl_use = x"yes"; then
     echo $ac_n "checking for __builtin_sinl linkage""... $ac_c" 1>&6
-echo "configure:3686: checking for __builtin_sinl linkage" >&5
+echo "configure:3846: checking for __builtin_sinl linkage" >&5
+    if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sinl_link'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
       cat > conftest.$ac_ext <<EOF
-#line 3688 "configure"
+#line 3852 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sinl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3695: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3859: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
-  link___builtin_sinl=yes
+  glibcpp_cv_func___builtin_sinl_link=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  link___builtin_sinl=no
+  glibcpp_cv_func___builtin_sinl_link=no
 fi
 rm -f conftest*
-    echo "$ac_t""$link___builtin_sinl" 1>&6
-    if test x$link___builtin_sinl = x"yes"; then
+    
+fi
+
+    echo "$ac_t""$glibcpp_cv_func___builtin_sinl_link" 1>&6
+    if test x$glibcpp_cv_func___builtin_sinl_link = x"yes"; then
       ac_tr_func=HAVE_`echo __builtin_sinl | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
       cat >> confdefs.h <<EOF
 #define ${ac_tr_func} 1
@@ -3713,65 +3880,79 @@ EOF
 
 
   
+  echo $ac_n "checking for __builtin_cosf declaration""... $ac_c" 1>&6
+echo "configure:3885: checking for __builtin_cosf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_cosf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for __builtin_cosf declaration""... $ac_c" 1>&6
-echo "configure:3726: checking for __builtin_cosf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 3728 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 3899 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_cosf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3735: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3906: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use___builtin_cosf=yes
+  glibcpp_cv_func___builtin_cosf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use___builtin_cosf=no
+  glibcpp_cv_func___builtin_cosf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use___builtin_cosf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use___builtin_cosf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func___builtin_cosf_use" 1>&6
+  if test x$glibcpp_cv_func___builtin_cosf_use = x"yes"; then
     echo $ac_n "checking for __builtin_cosf linkage""... $ac_c" 1>&6
-echo "configure:3755: checking for __builtin_cosf linkage" >&5
+echo "configure:3929: checking for __builtin_cosf linkage" >&5
+    if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_cosf_link'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
       cat > conftest.$ac_ext <<EOF
-#line 3757 "configure"
+#line 3935 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_cosf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3764: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3942: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
-  link___builtin_cosf=yes
+  glibcpp_cv_func___builtin_cosf_link=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  link___builtin_cosf=no
+  glibcpp_cv_func___builtin_cosf_link=no
 fi
 rm -f conftest*
-    echo "$ac_t""$link___builtin_cosf" 1>&6
-    if test x$link___builtin_cosf = x"yes"; then
+    
+fi
+
+    echo "$ac_t""$glibcpp_cv_func___builtin_cosf_link" 1>&6
+    if test x$glibcpp_cv_func___builtin_cosf_link = x"yes"; then
       ac_tr_func=HAVE_`echo __builtin_cosf | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
       cat >> confdefs.h <<EOF
 #define ${ac_tr_func} 1
@@ -3781,65 +3962,79 @@ EOF
   fi
 
   
+  echo $ac_n "checking for __builtin_cos declaration""... $ac_c" 1>&6
+echo "configure:3967: checking for __builtin_cos declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_cos_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for __builtin_cos declaration""... $ac_c" 1>&6
-echo "configure:3794: checking for __builtin_cos declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 3796 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 3981 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_cos(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3803: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3988: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use___builtin_cos=yes
+  glibcpp_cv_func___builtin_cos_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use___builtin_cos=no
+  glibcpp_cv_func___builtin_cos_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use___builtin_cos" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use___builtin_cos = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func___builtin_cos_use" 1>&6
+  if test x$glibcpp_cv_func___builtin_cos_use = x"yes"; then
     echo $ac_n "checking for __builtin_cos linkage""... $ac_c" 1>&6
-echo "configure:3823: checking for __builtin_cos linkage" >&5
+echo "configure:4011: checking for __builtin_cos linkage" >&5
+    if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_cos_link'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
       cat > conftest.$ac_ext <<EOF
-#line 3825 "configure"
+#line 4017 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_cos(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3832: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4024: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
-  link___builtin_cos=yes
+  glibcpp_cv_func___builtin_cos_link=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  link___builtin_cos=no
+  glibcpp_cv_func___builtin_cos_link=no
 fi
 rm -f conftest*
-    echo "$ac_t""$link___builtin_cos" 1>&6
-    if test x$link___builtin_cos = x"yes"; then
+    
+fi
+
+    echo "$ac_t""$glibcpp_cv_func___builtin_cos_link" 1>&6
+    if test x$glibcpp_cv_func___builtin_cos_link = x"yes"; then
       ac_tr_func=HAVE_`echo __builtin_cos | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
       cat >> confdefs.h <<EOF
 #define ${ac_tr_func} 1
@@ -3849,65 +4044,79 @@ EOF
   fi
 
   
+  echo $ac_n "checking for __builtin_cosl declaration""... $ac_c" 1>&6
+echo "configure:4049: checking for __builtin_cosl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_cosl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for __builtin_cosl declaration""... $ac_c" 1>&6
-echo "configure:3862: checking for __builtin_cosl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 3864 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 4063 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_cosl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3871: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4070: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use___builtin_cosl=yes
+  glibcpp_cv_func___builtin_cosl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use___builtin_cosl=no
+  glibcpp_cv_func___builtin_cosl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use___builtin_cosl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use___builtin_cosl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func___builtin_cosl_use" 1>&6
+  if test x$glibcpp_cv_func___builtin_cosl_use = x"yes"; then
     echo $ac_n "checking for __builtin_cosl linkage""... $ac_c" 1>&6
-echo "configure:3891: checking for __builtin_cosl linkage" >&5
+echo "configure:4093: checking for __builtin_cosl linkage" >&5
+    if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_cosl_link'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
       cat > conftest.$ac_ext <<EOF
-#line 3893 "configure"
+#line 4099 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_cosl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3900: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4106: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
-  link___builtin_cosl=yes
+  glibcpp_cv_func___builtin_cosl_link=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  link___builtin_cosl=no
+  glibcpp_cv_func___builtin_cosl_link=no
 fi
 rm -f conftest*
-    echo "$ac_t""$link___builtin_cosl" 1>&6
-    if test x$link___builtin_cosl = x"yes"; then
+    
+fi
+
+    echo "$ac_t""$glibcpp_cv_func___builtin_cosl_link" 1>&6
+    if test x$glibcpp_cv_func___builtin_cosl_link = x"yes"; then
       ac_tr_func=HAVE_`echo __builtin_cosl | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
       cat >> confdefs.h <<EOF
 #define ${ac_tr_func} 1
@@ -3983,7 +4192,7 @@ EOF
   CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
 
     echo $ac_n "checking for sin in -lm""... $ac_c" 1>&6
-echo "configure:3987: checking for sin in -lm" >&5
+echo "configure:4196: checking for sin in -lm" >&5
 ac_lib_var=`echo m'_'sin | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3991,7 +4200,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3995 "configure"
+#line 4204 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -4002,7 +4211,7 @@ int main() {
 sin()
 ; return 0; }
 EOF
-if { (eval echo configure:4006: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4215: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4028,12 +4237,12 @@ fi
     for ac_func in strtof strtold
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4032: checking for $ac_func" >&5
+echo "configure:4241: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4037 "configure"
+#line 4246 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4056,7 +4265,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4060: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4269: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4082,52 +4291,59 @@ done
 
 
     
+  echo $ac_n "checking for isinf declaration""... $ac_c" 1>&6
+echo "configure:4296: checking for isinf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_isinf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for isinf declaration""... $ac_c" 1>&6
-echo "configure:4095: checking for isinf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 4097 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 4310 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  isinf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4104: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4317: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_isinf=yes
+  glibcpp_cv_func_isinf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_isinf=no
+  glibcpp_cv_func_isinf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_isinf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_isinf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_isinf_use" 1>&6
+  if test x$glibcpp_cv_func_isinf_use = x"yes"; then
     for ac_func in isinf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4126: checking for $ac_func" >&5
+echo "configure:4342: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4131 "configure"
+#line 4347 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4150,7 +4366,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4154: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4370: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4177,52 +4393,59 @@ done
   fi
 
   
+  echo $ac_n "checking for isnan declaration""... $ac_c" 1>&6
+echo "configure:4398: checking for isnan declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_isnan_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for isnan declaration""... $ac_c" 1>&6
-echo "configure:4190: checking for isnan declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 4192 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 4412 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  isnan(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4199: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4419: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_isnan=yes
+  glibcpp_cv_func_isnan_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_isnan=no
+  glibcpp_cv_func_isnan_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_isnan" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_isnan = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_isnan_use" 1>&6
+  if test x$glibcpp_cv_func_isnan_use = x"yes"; then
     for ac_func in isnan
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4221: checking for $ac_func" >&5
+echo "configure:4444: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4226 "configure"
+#line 4449 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4245,7 +4468,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4249: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4472: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4272,52 +4495,59 @@ done
   fi
 
   
+  echo $ac_n "checking for finite declaration""... $ac_c" 1>&6
+echo "configure:4500: checking for finite declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_finite_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for finite declaration""... $ac_c" 1>&6
-echo "configure:4285: checking for finite declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 4287 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 4514 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  finite(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4294: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4521: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_finite=yes
+  glibcpp_cv_func_finite_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_finite=no
+  glibcpp_cv_func_finite_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_finite" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_finite = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_finite_use" 1>&6
+  if test x$glibcpp_cv_func_finite_use = x"yes"; then
     for ac_func in finite
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4316: checking for $ac_func" >&5
+echo "configure:4546: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4321 "configure"
+#line 4551 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4340,7 +4570,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4344: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4574: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4367,52 +4597,59 @@ done
   fi
 
   
+  echo $ac_n "checking for copysign declaration""... $ac_c" 1>&6
+echo "configure:4602: checking for copysign declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_copysign_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for copysign declaration""... $ac_c" 1>&6
-echo "configure:4380: checking for copysign declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 4382 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 4616 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  copysign(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:4389: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4623: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_copysign=yes
+  glibcpp_cv_func_copysign_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_copysign=no
+  glibcpp_cv_func_copysign_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_copysign" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_copysign = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_copysign_use" 1>&6
+  if test x$glibcpp_cv_func_copysign_use = x"yes"; then
     for ac_func in copysign
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4411: checking for $ac_func" >&5
+echo "configure:4648: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4416 "configure"
+#line 4653 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4435,7 +4672,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4439: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4676: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4462,52 +4699,59 @@ done
   fi
 
   
+  echo $ac_n "checking for sincos declaration""... $ac_c" 1>&6
+echo "configure:4704: checking for sincos declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_sincos_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for sincos declaration""... $ac_c" 1>&6
-echo "configure:4475: checking for sincos declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 4477 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 4718 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sincos(0, 0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:4484: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4725: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_sincos=yes
+  glibcpp_cv_func_sincos_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_sincos=no
+  glibcpp_cv_func_sincos_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_sincos" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_sincos = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_sincos_use" 1>&6
+  if test x$glibcpp_cv_func_sincos_use = x"yes"; then
     for ac_func in sincos
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4506: checking for $ac_func" >&5
+echo "configure:4750: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4511 "configure"
+#line 4755 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4530,7 +4774,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4534: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4778: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4557,52 +4801,59 @@ done
   fi
 
   
+  echo $ac_n "checking for fpclass declaration""... $ac_c" 1>&6
+echo "configure:4806: checking for fpclass declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_fpclass_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for fpclass declaration""... $ac_c" 1>&6
-echo "configure:4570: checking for fpclass declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 4572 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 4820 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  fpclass(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4579: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4827: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_fpclass=yes
+  glibcpp_cv_func_fpclass_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_fpclass=no
+  glibcpp_cv_func_fpclass_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_fpclass" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_fpclass = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_fpclass_use" 1>&6
+  if test x$glibcpp_cv_func_fpclass_use = x"yes"; then
     for ac_func in fpclass
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4601: checking for $ac_func" >&5
+echo "configure:4852: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4606 "configure"
+#line 4857 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4625,7 +4876,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4629: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4880: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4652,52 +4903,59 @@ done
   fi
 
   
+  echo $ac_n "checking for qfpclass declaration""... $ac_c" 1>&6
+echo "configure:4908: checking for qfpclass declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_qfpclass_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for qfpclass declaration""... $ac_c" 1>&6
-echo "configure:4665: checking for qfpclass declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 4667 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 4922 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  qfpclass(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4674: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4929: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_qfpclass=yes
+  glibcpp_cv_func_qfpclass_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_qfpclass=no
+  glibcpp_cv_func_qfpclass_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_qfpclass" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_qfpclass = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_qfpclass_use" 1>&6
+  if test x$glibcpp_cv_func_qfpclass_use = x"yes"; then
     for ac_func in qfpclass
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4696: checking for $ac_func" >&5
+echo "configure:4954: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4701 "configure"
+#line 4959 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4720,7 +4978,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4724: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4982: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4748,52 +5006,59 @@ done
 
 
     
+  echo $ac_n "checking for isnanf declaration""... $ac_c" 1>&6
+echo "configure:5011: checking for isnanf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_isnanf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for isnanf declaration""... $ac_c" 1>&6
-echo "configure:4761: checking for isnanf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 4763 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 5025 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  isnanf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4770: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5032: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_isnanf=yes
+  glibcpp_cv_func_isnanf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_isnanf=no
+  glibcpp_cv_func_isnanf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_isnanf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_isnanf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_isnanf_use" 1>&6
+  if test x$glibcpp_cv_func_isnanf_use = x"yes"; then
     for ac_func in isnanf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4792: checking for $ac_func" >&5
+echo "configure:5057: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4797 "configure"
+#line 5062 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4816,7 +5081,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4820: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5085: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4843,52 +5108,59 @@ done
   fi
 
   
+  echo $ac_n "checking for isinff declaration""... $ac_c" 1>&6
+echo "configure:5113: checking for isinff declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_isinff_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for isinff declaration""... $ac_c" 1>&6
-echo "configure:4856: checking for isinff declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 4858 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 5127 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  isinff(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4865: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5134: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_isinff=yes
+  glibcpp_cv_func_isinff_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_isinff=no
+  glibcpp_cv_func_isinff_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_isinff" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_isinff = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_isinff_use" 1>&6
+  if test x$glibcpp_cv_func_isinff_use = x"yes"; then
     for ac_func in isinff
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4887: checking for $ac_func" >&5
+echo "configure:5159: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4892 "configure"
+#line 5164 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4911,7 +5183,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4915: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5187: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4938,52 +5210,59 @@ done
   fi
 
   
+  echo $ac_n "checking for acosf declaration""... $ac_c" 1>&6
+echo "configure:5215: checking for acosf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_acosf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for acosf declaration""... $ac_c" 1>&6
-echo "configure:4951: checking for acosf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 4953 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 5229 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  acosf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4960: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5236: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_acosf=yes
+  glibcpp_cv_func_acosf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_acosf=no
+  glibcpp_cv_func_acosf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_acosf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_acosf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_acosf_use" 1>&6
+  if test x$glibcpp_cv_func_acosf_use = x"yes"; then
     for ac_func in acosf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4982: checking for $ac_func" >&5
+echo "configure:5261: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4987 "configure"
+#line 5266 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5006,7 +5285,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5010: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5289: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5033,52 +5312,59 @@ done
   fi
 
   
+  echo $ac_n "checking for asinf declaration""... $ac_c" 1>&6
+echo "configure:5317: checking for asinf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_asinf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for asinf declaration""... $ac_c" 1>&6
-echo "configure:5046: checking for asinf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 5048 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 5331 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  asinf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5055: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5338: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_asinf=yes
+  glibcpp_cv_func_asinf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_asinf=no
+  glibcpp_cv_func_asinf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_asinf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_asinf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_asinf_use" 1>&6
+  if test x$glibcpp_cv_func_asinf_use = x"yes"; then
     for ac_func in asinf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5077: checking for $ac_func" >&5
+echo "configure:5363: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5082 "configure"
+#line 5368 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5101,7 +5387,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5105: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5391: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5128,52 +5414,59 @@ done
   fi
 
   
+  echo $ac_n "checking for atanf declaration""... $ac_c" 1>&6
+echo "configure:5419: checking for atanf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_atanf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for atanf declaration""... $ac_c" 1>&6
-echo "configure:5141: checking for atanf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 5143 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 5433 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  atanf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5150: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5440: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_atanf=yes
+  glibcpp_cv_func_atanf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_atanf=no
+  glibcpp_cv_func_atanf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_atanf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_atanf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_atanf_use" 1>&6
+  if test x$glibcpp_cv_func_atanf_use = x"yes"; then
     for ac_func in atanf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5172: checking for $ac_func" >&5
+echo "configure:5465: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5177 "configure"
+#line 5470 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5196,7 +5489,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5200: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5493: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5223,52 +5516,59 @@ done
   fi
 
   
+  echo $ac_n "checking for atan2f declaration""... $ac_c" 1>&6
+echo "configure:5521: checking for atan2f declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_atan2f_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for atan2f declaration""... $ac_c" 1>&6
-echo "configure:5236: checking for atan2f declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 5238 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 5535 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  atan2f(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:5245: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5542: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_atan2f=yes
+  glibcpp_cv_func_atan2f_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_atan2f=no
+  glibcpp_cv_func_atan2f_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_atan2f" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_atan2f = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_atan2f_use" 1>&6
+  if test x$glibcpp_cv_func_atan2f_use = x"yes"; then
     for ac_func in atan2f
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5267: checking for $ac_func" >&5
+echo "configure:5567: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5272 "configure"
+#line 5572 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5291,7 +5591,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5295: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5595: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5318,52 +5618,59 @@ done
   fi
 
   
+  echo $ac_n "checking for ceilf declaration""... $ac_c" 1>&6
+echo "configure:5623: checking for ceilf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_ceilf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for ceilf declaration""... $ac_c" 1>&6
-echo "configure:5331: checking for ceilf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 5333 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 5637 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  ceilf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5340: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5644: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_ceilf=yes
+  glibcpp_cv_func_ceilf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_ceilf=no
+  glibcpp_cv_func_ceilf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_ceilf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_ceilf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_ceilf_use" 1>&6
+  if test x$glibcpp_cv_func_ceilf_use = x"yes"; then
     for ac_func in ceilf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5362: checking for $ac_func" >&5
+echo "configure:5669: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5367 "configure"
+#line 5674 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5386,7 +5693,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5390: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5697: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5413,52 +5720,59 @@ done
   fi
 
   
+  echo $ac_n "checking for cosf declaration""... $ac_c" 1>&6
+echo "configure:5725: checking for cosf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_cosf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for cosf declaration""... $ac_c" 1>&6
-echo "configure:5426: checking for cosf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 5428 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 5739 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  cosf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5435: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5746: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_cosf=yes
+  glibcpp_cv_func_cosf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_cosf=no
+  glibcpp_cv_func_cosf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_cosf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_cosf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_cosf_use" 1>&6
+  if test x$glibcpp_cv_func_cosf_use = x"yes"; then
     for ac_func in cosf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5457: checking for $ac_func" >&5
+echo "configure:5771: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5462 "configure"
+#line 5776 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5481,7 +5795,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5485: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5799: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5508,52 +5822,59 @@ done
   fi
 
   
+  echo $ac_n "checking for coshf declaration""... $ac_c" 1>&6
+echo "configure:5827: checking for coshf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_coshf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for coshf declaration""... $ac_c" 1>&6
-echo "configure:5521: checking for coshf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 5523 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 5841 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  coshf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5530: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5848: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_coshf=yes
+  glibcpp_cv_func_coshf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_coshf=no
+  glibcpp_cv_func_coshf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_coshf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_coshf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_coshf_use" 1>&6
+  if test x$glibcpp_cv_func_coshf_use = x"yes"; then
     for ac_func in coshf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5552: checking for $ac_func" >&5
+echo "configure:5873: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5557 "configure"
+#line 5878 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5576,7 +5897,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5580: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5901: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5603,52 +5924,59 @@ done
   fi
 
   
+  echo $ac_n "checking for expf declaration""... $ac_c" 1>&6
+echo "configure:5929: checking for expf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_expf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for expf declaration""... $ac_c" 1>&6
-echo "configure:5616: checking for expf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 5618 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 5943 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  expf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5625: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5950: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_expf=yes
+  glibcpp_cv_func_expf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_expf=no
+  glibcpp_cv_func_expf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_expf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_expf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_expf_use" 1>&6
+  if test x$glibcpp_cv_func_expf_use = x"yes"; then
     for ac_func in expf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5647: checking for $ac_func" >&5
+echo "configure:5975: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5652 "configure"
+#line 5980 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5671,7 +5999,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5675: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6003: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5698,52 +6026,59 @@ done
   fi
 
   
+  echo $ac_n "checking for fabsf declaration""... $ac_c" 1>&6
+echo "configure:6031: checking for fabsf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_fabsf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for fabsf declaration""... $ac_c" 1>&6
-echo "configure:5711: checking for fabsf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 5713 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 6045 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  fabsf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5720: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6052: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_fabsf=yes
+  glibcpp_cv_func_fabsf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_fabsf=no
+  glibcpp_cv_func_fabsf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_fabsf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_fabsf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_fabsf_use" 1>&6
+  if test x$glibcpp_cv_func_fabsf_use = x"yes"; then
     for ac_func in fabsf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5742: checking for $ac_func" >&5
+echo "configure:6077: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5747 "configure"
+#line 6082 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5766,7 +6101,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5770: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6105: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5793,52 +6128,59 @@ done
   fi
 
   
+  echo $ac_n "checking for floorf declaration""... $ac_c" 1>&6
+echo "configure:6133: checking for floorf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_floorf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for floorf declaration""... $ac_c" 1>&6
-echo "configure:5806: checking for floorf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 5808 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 6147 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  floorf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5815: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6154: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_floorf=yes
+  glibcpp_cv_func_floorf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_floorf=no
+  glibcpp_cv_func_floorf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_floorf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_floorf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_floorf_use" 1>&6
+  if test x$glibcpp_cv_func_floorf_use = x"yes"; then
     for ac_func in floorf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5837: checking for $ac_func" >&5
+echo "configure:6179: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5842 "configure"
+#line 6184 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5861,7 +6203,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5865: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6207: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5888,52 +6230,59 @@ done
   fi
 
   
+  echo $ac_n "checking for fmodf declaration""... $ac_c" 1>&6
+echo "configure:6235: checking for fmodf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_fmodf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for fmodf declaration""... $ac_c" 1>&6
-echo "configure:5901: checking for fmodf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 5903 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 6249 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  fmodf(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:5910: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6256: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_fmodf=yes
+  glibcpp_cv_func_fmodf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_fmodf=no
+  glibcpp_cv_func_fmodf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_fmodf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_fmodf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_fmodf_use" 1>&6
+  if test x$glibcpp_cv_func_fmodf_use = x"yes"; then
     for ac_func in fmodf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5932: checking for $ac_func" >&5
+echo "configure:6281: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5937 "configure"
+#line 6286 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5956,7 +6305,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5960: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6309: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5983,52 +6332,59 @@ done
   fi
 
   
+  echo $ac_n "checking for frexpf declaration""... $ac_c" 1>&6
+echo "configure:6337: checking for frexpf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_frexpf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for frexpf declaration""... $ac_c" 1>&6
-echo "configure:5996: checking for frexpf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 5998 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 6351 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  frexpf(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:6005: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6358: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_frexpf=yes
+  glibcpp_cv_func_frexpf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_frexpf=no
+  glibcpp_cv_func_frexpf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_frexpf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_frexpf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_frexpf_use" 1>&6
+  if test x$glibcpp_cv_func_frexpf_use = x"yes"; then
     for ac_func in frexpf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6027: checking for $ac_func" >&5
+echo "configure:6383: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6032 "configure"
+#line 6388 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6051,7 +6407,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6055: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6411: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6078,52 +6434,59 @@ done
   fi
 
   
+  echo $ac_n "checking for ldexpf declaration""... $ac_c" 1>&6
+echo "configure:6439: checking for ldexpf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_ldexpf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for ldexpf declaration""... $ac_c" 1>&6
-echo "configure:6091: checking for ldexpf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 6093 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 6453 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  ldexpf(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:6100: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6460: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_ldexpf=yes
+  glibcpp_cv_func_ldexpf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_ldexpf=no
+  glibcpp_cv_func_ldexpf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_ldexpf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_ldexpf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_ldexpf_use" 1>&6
+  if test x$glibcpp_cv_func_ldexpf_use = x"yes"; then
     for ac_func in ldexpf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6122: checking for $ac_func" >&5
+echo "configure:6485: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6127 "configure"
+#line 6490 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6146,7 +6509,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6150: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6513: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6173,52 +6536,59 @@ done
   fi
 
   
+  echo $ac_n "checking for logf declaration""... $ac_c" 1>&6
+echo "configure:6541: checking for logf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_logf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for logf declaration""... $ac_c" 1>&6
-echo "configure:6186: checking for logf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 6188 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 6555 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  logf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:6195: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6562: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_logf=yes
+  glibcpp_cv_func_logf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_logf=no
+  glibcpp_cv_func_logf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_logf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_logf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_logf_use" 1>&6
+  if test x$glibcpp_cv_func_logf_use = x"yes"; then
     for ac_func in logf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6217: checking for $ac_func" >&5
+echo "configure:6587: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6222 "configure"
+#line 6592 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6241,7 +6611,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6245: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6615: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6268,52 +6638,59 @@ done
   fi
 
   
+  echo $ac_n "checking for log10f declaration""... $ac_c" 1>&6
+echo "configure:6643: checking for log10f declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_log10f_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for log10f declaration""... $ac_c" 1>&6
-echo "configure:6281: checking for log10f declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 6283 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 6657 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  log10f(0);
 ; return 0; }
 EOF
-if { (eval echo configure:6290: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6664: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_log10f=yes
+  glibcpp_cv_func_log10f_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_log10f=no
+  glibcpp_cv_func_log10f_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_log10f" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_log10f = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_log10f_use" 1>&6
+  if test x$glibcpp_cv_func_log10f_use = x"yes"; then
     for ac_func in log10f
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6312: checking for $ac_func" >&5
+echo "configure:6689: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6317 "configure"
+#line 6694 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6336,7 +6713,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6340: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6717: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6363,52 +6740,59 @@ done
   fi
 
   
+  echo $ac_n "checking for modff declaration""... $ac_c" 1>&6
+echo "configure:6745: checking for modff declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_modff_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for modff declaration""... $ac_c" 1>&6
-echo "configure:6376: checking for modff declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 6378 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 6759 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  modff(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:6385: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6766: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_modff=yes
+  glibcpp_cv_func_modff_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_modff=no
+  glibcpp_cv_func_modff_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_modff" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_modff = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_modff_use" 1>&6
+  if test x$glibcpp_cv_func_modff_use = x"yes"; then
     for ac_func in modff
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6407: checking for $ac_func" >&5
+echo "configure:6791: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6412 "configure"
+#line 6796 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6431,7 +6815,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6435: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6819: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6458,52 +6842,59 @@ done
   fi
 
   
+  echo $ac_n "checking for powf declaration""... $ac_c" 1>&6
+echo "configure:6847: checking for powf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_powf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for powf declaration""... $ac_c" 1>&6
-echo "configure:6471: checking for powf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 6473 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 6861 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  powf(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:6480: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6868: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_powf=yes
+  glibcpp_cv_func_powf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_powf=no
+  glibcpp_cv_func_powf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_powf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_powf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_powf_use" 1>&6
+  if test x$glibcpp_cv_func_powf_use = x"yes"; then
     for ac_func in powf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6502: checking for $ac_func" >&5
+echo "configure:6893: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6507 "configure"
+#line 6898 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6526,7 +6917,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6530: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6921: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6553,52 +6944,59 @@ done
   fi
 
   
+  echo $ac_n "checking for sinf declaration""... $ac_c" 1>&6
+echo "configure:6949: checking for sinf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_sinf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for sinf declaration""... $ac_c" 1>&6
-echo "configure:6566: checking for sinf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 6568 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 6963 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sinf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:6575: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6970: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_sinf=yes
+  glibcpp_cv_func_sinf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_sinf=no
+  glibcpp_cv_func_sinf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_sinf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_sinf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_sinf_use" 1>&6
+  if test x$glibcpp_cv_func_sinf_use = x"yes"; then
     for ac_func in sinf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6597: checking for $ac_func" >&5
+echo "configure:6995: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6602 "configure"
+#line 7000 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6621,7 +7019,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6625: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7023: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6648,52 +7046,59 @@ done
   fi
 
   
+  echo $ac_n "checking for sinhf declaration""... $ac_c" 1>&6
+echo "configure:7051: checking for sinhf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_sinhf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for sinhf declaration""... $ac_c" 1>&6
-echo "configure:6661: checking for sinhf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 6663 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 7065 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sinhf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:6670: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7072: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_sinhf=yes
+  glibcpp_cv_func_sinhf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_sinhf=no
+  glibcpp_cv_func_sinhf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_sinhf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_sinhf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_sinhf_use" 1>&6
+  if test x$glibcpp_cv_func_sinhf_use = x"yes"; then
     for ac_func in sinhf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6692: checking for $ac_func" >&5
+echo "configure:7097: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6697 "configure"
+#line 7102 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6716,7 +7121,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6720: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7125: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6743,52 +7148,59 @@ done
   fi
 
   
+  echo $ac_n "checking for sqrtf declaration""... $ac_c" 1>&6
+echo "configure:7153: checking for sqrtf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_sqrtf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for sqrtf declaration""... $ac_c" 1>&6
-echo "configure:6756: checking for sqrtf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 6758 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 7167 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sqrtf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:6765: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7174: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_sqrtf=yes
+  glibcpp_cv_func_sqrtf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_sqrtf=no
+  glibcpp_cv_func_sqrtf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_sqrtf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_sqrtf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_sqrtf_use" 1>&6
+  if test x$glibcpp_cv_func_sqrtf_use = x"yes"; then
     for ac_func in sqrtf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6787: checking for $ac_func" >&5
+echo "configure:7199: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6792 "configure"
+#line 7204 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6811,7 +7223,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6815: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7227: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6838,52 +7250,59 @@ done
   fi
 
   
+  echo $ac_n "checking for tanf declaration""... $ac_c" 1>&6
+echo "configure:7255: checking for tanf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_tanf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for tanf declaration""... $ac_c" 1>&6
-echo "configure:6851: checking for tanf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 6853 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 7269 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  tanf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:6860: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7276: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_tanf=yes
+  glibcpp_cv_func_tanf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_tanf=no
+  glibcpp_cv_func_tanf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_tanf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_tanf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_tanf_use" 1>&6
+  if test x$glibcpp_cv_func_tanf_use = x"yes"; then
     for ac_func in tanf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6882: checking for $ac_func" >&5
+echo "configure:7301: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6887 "configure"
+#line 7306 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6906,7 +7325,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6910: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7329: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6933,52 +7352,59 @@ done
   fi
 
   
+  echo $ac_n "checking for tanhf declaration""... $ac_c" 1>&6
+echo "configure:7357: checking for tanhf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_tanhf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for tanhf declaration""... $ac_c" 1>&6
-echo "configure:6946: checking for tanhf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 6948 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 7371 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  tanhf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:6955: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7378: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_tanhf=yes
+  glibcpp_cv_func_tanhf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_tanhf=no
+  glibcpp_cv_func_tanhf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_tanhf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_tanhf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_tanhf_use" 1>&6
+  if test x$glibcpp_cv_func_tanhf_use = x"yes"; then
     for ac_func in tanhf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6977: checking for $ac_func" >&5
+echo "configure:7403: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6982 "configure"
+#line 7408 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7001,7 +7427,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7005: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7431: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7028,52 +7454,59 @@ done
   fi
 
   
+  echo $ac_n "checking for sincosf declaration""... $ac_c" 1>&6
+echo "configure:7459: checking for sincosf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_sincosf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for sincosf declaration""... $ac_c" 1>&6
-echo "configure:7041: checking for sincosf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 7043 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 7473 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sincosf(0, 0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:7050: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7480: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_sincosf=yes
+  glibcpp_cv_func_sincosf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_sincosf=no
+  glibcpp_cv_func_sincosf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_sincosf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_sincosf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_sincosf_use" 1>&6
+  if test x$glibcpp_cv_func_sincosf_use = x"yes"; then
     for ac_func in sincosf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7072: checking for $ac_func" >&5
+echo "configure:7505: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7077 "configure"
+#line 7510 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7096,7 +7529,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7100: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7533: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7123,52 +7556,59 @@ done
   fi
 
   
+  echo $ac_n "checking for finitef declaration""... $ac_c" 1>&6
+echo "configure:7561: checking for finitef declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_finitef_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for finitef declaration""... $ac_c" 1>&6
-echo "configure:7136: checking for finitef declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 7138 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 7575 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  finitef(0);
 ; return 0; }
 EOF
-if { (eval echo configure:7145: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7582: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_finitef=yes
+  glibcpp_cv_func_finitef_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_finitef=no
+  glibcpp_cv_func_finitef_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_finitef" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_finitef = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_finitef_use" 1>&6
+  if test x$glibcpp_cv_func_finitef_use = x"yes"; then
     for ac_func in finitef
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7167: checking for $ac_func" >&5
+echo "configure:7607: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7172 "configure"
+#line 7612 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7191,7 +7631,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7195: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7635: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7219,52 +7659,59 @@ done
 
 
     
+  echo $ac_n "checking for isnanl declaration""... $ac_c" 1>&6
+echo "configure:7664: checking for isnanl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_isnanl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for isnanl declaration""... $ac_c" 1>&6
-echo "configure:7232: checking for isnanl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 7234 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 7678 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  isnanl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:7241: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7685: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_isnanl=yes
+  glibcpp_cv_func_isnanl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_isnanl=no
+  glibcpp_cv_func_isnanl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_isnanl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_isnanl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_isnanl_use" 1>&6
+  if test x$glibcpp_cv_func_isnanl_use = x"yes"; then
     for ac_func in isnanl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7263: checking for $ac_func" >&5
+echo "configure:7710: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7268 "configure"
+#line 7715 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7287,7 +7734,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7291: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7738: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7314,52 +7761,59 @@ done
   fi
 
   
+  echo $ac_n "checking for isinfl declaration""... $ac_c" 1>&6
+echo "configure:7766: checking for isinfl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_isinfl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for isinfl declaration""... $ac_c" 1>&6
-echo "configure:7327: checking for isinfl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 7329 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 7780 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  isinfl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:7336: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7787: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_isinfl=yes
+  glibcpp_cv_func_isinfl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_isinfl=no
+  glibcpp_cv_func_isinfl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_isinfl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_isinfl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_isinfl_use" 1>&6
+  if test x$glibcpp_cv_func_isinfl_use = x"yes"; then
     for ac_func in isinfl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7358: checking for $ac_func" >&5
+echo "configure:7812: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7363 "configure"
+#line 7817 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7382,7 +7836,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7386: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7840: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7409,52 +7863,59 @@ done
   fi
 
   
+  echo $ac_n "checking for copysignl declaration""... $ac_c" 1>&6
+echo "configure:7868: checking for copysignl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_copysignl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for copysignl declaration""... $ac_c" 1>&6
-echo "configure:7422: checking for copysignl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 7424 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 7882 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  copysignl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:7431: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7889: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_copysignl=yes
+  glibcpp_cv_func_copysignl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_copysignl=no
+  glibcpp_cv_func_copysignl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_copysignl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_copysignl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_copysignl_use" 1>&6
+  if test x$glibcpp_cv_func_copysignl_use = x"yes"; then
     for ac_func in copysignl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7453: checking for $ac_func" >&5
+echo "configure:7914: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7458 "configure"
+#line 7919 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7477,7 +7938,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7481: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7942: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7504,52 +7965,59 @@ done
   fi
 
   
+  echo $ac_n "checking for acosl declaration""... $ac_c" 1>&6
+echo "configure:7970: checking for acosl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_acosl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for acosl declaration""... $ac_c" 1>&6
-echo "configure:7517: checking for acosl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 7519 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 7984 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  acosl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:7526: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7991: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_acosl=yes
+  glibcpp_cv_func_acosl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_acosl=no
+  glibcpp_cv_func_acosl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_acosl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_acosl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_acosl_use" 1>&6
+  if test x$glibcpp_cv_func_acosl_use = x"yes"; then
     for ac_func in acosl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7548: checking for $ac_func" >&5
+echo "configure:8016: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7553 "configure"
+#line 8021 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7572,7 +8040,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7576: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8044: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7599,521 +8067,53 @@ done
   fi
 
   
+  echo $ac_n "checking for asinl declaration""... $ac_c" 1>&6
+echo "configure:8072: checking for asinl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_asinl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for asinl declaration""... $ac_c" 1>&6
-echo "configure:7612: checking for asinl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 7614 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 8086 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  asinl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:7621: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8093: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_asinl=yes
+  glibcpp_cv_func_asinl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_asinl=no
+  glibcpp_cv_func_asinl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_asinl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_asinl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_asinl_use" 1>&6
+  if test x$glibcpp_cv_func_asinl_use = x"yes"; then
     for ac_func in asinl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7643: checking for $ac_func" >&5
-if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  cat > conftest.$ac_ext <<EOF
-#line 7648 "configure"
-#include "confdefs.h"
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func(); below.  */
-#include <assert.h>
-/* Override any gcc2 internal prototype to avoid an error.  */
-/* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char $ac_func();
-
-int main() {
-
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
-choke me
-#else
-$ac_func();
-#endif
-
-; return 0; }
-EOF
-if { (eval echo configure:7671: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=yes"
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=no"
-fi
-rm -f conftest*
-fi
-
-if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_func 1
-EOF
- 
-else
-  echo "$ac_t""no" 1>&6
-fi
-done
-    
-  fi
-
-  
-  
-  ac_ext=C
-# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cxx_cross
-
-  echo $ac_n "checking for atanl declaration""... $ac_c" 1>&6
-echo "configure:7707: checking for atanl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 7709 "configure"
-#include "confdefs.h"
-#include <math.h>
-int main() {
- atanl(0);
-; return 0; }
-EOF
-if { (eval echo configure:7716: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
-  rm -rf conftest*
-  use_atanl=yes
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  use_atanl=no
-fi
-rm -f conftest*
-  echo "$ac_t""$use_atanl" 1>&6
-  ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
-
-  if test x$use_atanl = x"yes"; then
-    for ac_func in atanl
-do
-echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7738: checking for $ac_func" >&5
-if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  cat > conftest.$ac_ext <<EOF
-#line 7743 "configure"
-#include "confdefs.h"
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func(); below.  */
-#include <assert.h>
-/* Override any gcc2 internal prototype to avoid an error.  */
-/* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char $ac_func();
-
-int main() {
-
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
-choke me
-#else
-$ac_func();
-#endif
-
-; return 0; }
-EOF
-if { (eval echo configure:7766: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=yes"
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=no"
-fi
-rm -f conftest*
-fi
-
-if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_func 1
-EOF
- 
-else
-  echo "$ac_t""no" 1>&6
-fi
-done
-    
-  fi
-
-  
-  
-  ac_ext=C
-# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cxx_cross
-
-  echo $ac_n "checking for atan2l declaration""... $ac_c" 1>&6
-echo "configure:7802: checking for atan2l declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 7804 "configure"
-#include "confdefs.h"
-#include <math.h>
-int main() {
- atan2l(0, 0);
-; return 0; }
-EOF
-if { (eval echo configure:7811: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
-  rm -rf conftest*
-  use_atan2l=yes
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  use_atan2l=no
-fi
-rm -f conftest*
-  echo "$ac_t""$use_atan2l" 1>&6
-  ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
-
-  if test x$use_atan2l = x"yes"; then
-    for ac_func in atan2l
-do
-echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7833: checking for $ac_func" >&5
-if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  cat > conftest.$ac_ext <<EOF
-#line 7838 "configure"
-#include "confdefs.h"
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func(); below.  */
-#include <assert.h>
-/* Override any gcc2 internal prototype to avoid an error.  */
-/* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char $ac_func();
-
-int main() {
-
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
-choke me
-#else
-$ac_func();
-#endif
-
-; return 0; }
-EOF
-if { (eval echo configure:7861: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=yes"
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=no"
-fi
-rm -f conftest*
-fi
-
-if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_func 1
-EOF
- 
-else
-  echo "$ac_t""no" 1>&6
-fi
-done
-    
-  fi
-
-  
-  
-  ac_ext=C
-# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cxx_cross
-
-  echo $ac_n "checking for ceill declaration""... $ac_c" 1>&6
-echo "configure:7897: checking for ceill declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 7899 "configure"
-#include "confdefs.h"
-#include <math.h>
-int main() {
- ceill(0);
-; return 0; }
-EOF
-if { (eval echo configure:7906: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
-  rm -rf conftest*
-  use_ceill=yes
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  use_ceill=no
-fi
-rm -f conftest*
-  echo "$ac_t""$use_ceill" 1>&6
-  ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
-
-  if test x$use_ceill = x"yes"; then
-    for ac_func in ceill
-do
-echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7928: checking for $ac_func" >&5
-if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  cat > conftest.$ac_ext <<EOF
-#line 7933 "configure"
-#include "confdefs.h"
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func(); below.  */
-#include <assert.h>
-/* Override any gcc2 internal prototype to avoid an error.  */
-/* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char $ac_func();
-
-int main() {
-
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
-choke me
-#else
-$ac_func();
-#endif
-
-; return 0; }
-EOF
-if { (eval echo configure:7956: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=yes"
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=no"
-fi
-rm -f conftest*
-fi
-
-if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_func 1
-EOF
- 
-else
-  echo "$ac_t""no" 1>&6
-fi
-done
-    
-  fi
-
-  
-  
-  ac_ext=C
-# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cxx_cross
-
-  echo $ac_n "checking for cosl declaration""... $ac_c" 1>&6
-echo "configure:7992: checking for cosl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 7994 "configure"
-#include "confdefs.h"
-#include <math.h>
-int main() {
- cosl(0);
-; return 0; }
-EOF
-if { (eval echo configure:8001: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
-  rm -rf conftest*
-  use_cosl=yes
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  use_cosl=no
-fi
-rm -f conftest*
-  echo "$ac_t""$use_cosl" 1>&6
-  ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
-
-  if test x$use_cosl = x"yes"; then
-    for ac_func in cosl
-do
-echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8023: checking for $ac_func" >&5
-if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  cat > conftest.$ac_ext <<EOF
-#line 8028 "configure"
-#include "confdefs.h"
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func(); below.  */
-#include <assert.h>
-/* Override any gcc2 internal prototype to avoid an error.  */
-/* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char $ac_func();
-
-int main() {
-
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
-choke me
-#else
-$ac_func();
-#endif
-
-; return 0; }
-EOF
-if { (eval echo configure:8051: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=yes"
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=no"
-fi
-rm -f conftest*
-fi
-
-if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_func 1
-EOF
- 
-else
-  echo "$ac_t""no" 1>&6
-fi
-done
-    
-  fi
-
-  
-  
-  ac_ext=C
-# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cxx_cross
-
-  echo $ac_n "checking for coshl declaration""... $ac_c" 1>&6
-echo "configure:8087: checking for coshl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 8089 "configure"
-#include "confdefs.h"
-#include <math.h>
-int main() {
- coshl(0);
-; return 0; }
-EOF
-if { (eval echo configure:8096: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
-  rm -rf conftest*
-  use_coshl=yes
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  use_coshl=no
-fi
-rm -f conftest*
-  echo "$ac_t""$use_coshl" 1>&6
-  ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
-
-  if test x$use_coshl = x"yes"; then
-    for ac_func in coshl
-do
-echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
 echo "configure:8118: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -8169,52 +8169,569 @@ done
   fi
 
   
+  echo $ac_n "checking for atanl declaration""... $ac_c" 1>&6
+echo "configure:8174: checking for atanl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_atanl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for expl declaration""... $ac_c" 1>&6
-echo "configure:8182: checking for expl declaration" >&5
+    cat > conftest.$ac_ext <<EOF
+#line 8188 "configure"
+#include "confdefs.h"
+#include <math.h>
+int main() {
+ atanl(0);
+; return 0; }
+EOF
+if { (eval echo configure:8195: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  glibcpp_cv_func_atanl_use=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  glibcpp_cv_func_atanl_use=no
+fi
+rm -f conftest*
+    ac_ext=c
+# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cc_cross
+
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_atanl_use" 1>&6
+  if test x$glibcpp_cv_func_atanl_use = x"yes"; then
+    for ac_func in atanl
+do
+echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:8220: checking for $ac_func" >&5
+if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   cat > conftest.$ac_ext <<EOF
-#line 8184 "configure"
+#line 8225 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func(); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char $ac_func();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+$ac_func();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:8248: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_func_$ac_func=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_func_$ac_func=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_func 1
+EOF
+ 
+else
+  echo "$ac_t""no" 1>&6
+fi
+done
+    
+  fi
+
+  
+  echo $ac_n "checking for atan2l declaration""... $ac_c" 1>&6
+echo "configure:8276: checking for atan2l declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_atan2l_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
+    
+    ac_ext=C
+# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cxx_cross
+
+    cat > conftest.$ac_ext <<EOF
+#line 8290 "configure"
+#include "confdefs.h"
+#include <math.h>
+int main() {
+ atan2l(0, 0);
+; return 0; }
+EOF
+if { (eval echo configure:8297: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  glibcpp_cv_func_atan2l_use=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  glibcpp_cv_func_atan2l_use=no
+fi
+rm -f conftest*
+    ac_ext=c
+# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cc_cross
+
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_atan2l_use" 1>&6
+  if test x$glibcpp_cv_func_atan2l_use = x"yes"; then
+    for ac_func in atan2l
+do
+echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:8322: checking for $ac_func" >&5
+if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 8327 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func(); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char $ac_func();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+$ac_func();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:8350: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_func_$ac_func=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_func_$ac_func=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_func 1
+EOF
+ 
+else
+  echo "$ac_t""no" 1>&6
+fi
+done
+    
+  fi
+
+  
+  echo $ac_n "checking for ceill declaration""... $ac_c" 1>&6
+echo "configure:8378: checking for ceill declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_ceill_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
+    
+    ac_ext=C
+# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cxx_cross
+
+    cat > conftest.$ac_ext <<EOF
+#line 8392 "configure"
+#include "confdefs.h"
+#include <math.h>
+int main() {
+ ceill(0);
+; return 0; }
+EOF
+if { (eval echo configure:8399: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  glibcpp_cv_func_ceill_use=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  glibcpp_cv_func_ceill_use=no
+fi
+rm -f conftest*
+    ac_ext=c
+# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cc_cross
+
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_ceill_use" 1>&6
+  if test x$glibcpp_cv_func_ceill_use = x"yes"; then
+    for ac_func in ceill
+do
+echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:8424: checking for $ac_func" >&5
+if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 8429 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func(); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char $ac_func();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+$ac_func();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:8452: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_func_$ac_func=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_func_$ac_func=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_func 1
+EOF
+ 
+else
+  echo "$ac_t""no" 1>&6
+fi
+done
+    
+  fi
+
+  
+  echo $ac_n "checking for cosl declaration""... $ac_c" 1>&6
+echo "configure:8480: checking for cosl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_cosl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
+    
+    ac_ext=C
+# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cxx_cross
+
+    cat > conftest.$ac_ext <<EOF
+#line 8494 "configure"
+#include "confdefs.h"
+#include <math.h>
+int main() {
+ cosl(0);
+; return 0; }
+EOF
+if { (eval echo configure:8501: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  glibcpp_cv_func_cosl_use=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  glibcpp_cv_func_cosl_use=no
+fi
+rm -f conftest*
+    ac_ext=c
+# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cc_cross
+
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_cosl_use" 1>&6
+  if test x$glibcpp_cv_func_cosl_use = x"yes"; then
+    for ac_func in cosl
+do
+echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:8526: checking for $ac_func" >&5
+if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 8531 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func(); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char $ac_func();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+$ac_func();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:8554: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_func_$ac_func=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_func_$ac_func=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_func 1
+EOF
+ 
+else
+  echo "$ac_t""no" 1>&6
+fi
+done
+    
+  fi
+
+  
+  echo $ac_n "checking for coshl declaration""... $ac_c" 1>&6
+echo "configure:8582: checking for coshl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_coshl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
+    
+    ac_ext=C
+# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cxx_cross
+
+    cat > conftest.$ac_ext <<EOF
+#line 8596 "configure"
+#include "confdefs.h"
+#include <math.h>
+int main() {
+ coshl(0);
+; return 0; }
+EOF
+if { (eval echo configure:8603: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  glibcpp_cv_func_coshl_use=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  glibcpp_cv_func_coshl_use=no
+fi
+rm -f conftest*
+    ac_ext=c
+# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cc_cross
+
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_coshl_use" 1>&6
+  if test x$glibcpp_cv_func_coshl_use = x"yes"; then
+    for ac_func in coshl
+do
+echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:8628: checking for $ac_func" >&5
+if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 8633 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func(); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char $ac_func();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+$ac_func();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:8656: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_func_$ac_func=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_func_$ac_func=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_func 1
+EOF
+ 
+else
+  echo "$ac_t""no" 1>&6
+fi
+done
+    
+  fi
+
+  
+  echo $ac_n "checking for expl declaration""... $ac_c" 1>&6
+echo "configure:8684: checking for expl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_expl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
+    
+    ac_ext=C
+# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cxx_cross
+
+    cat > conftest.$ac_ext <<EOF
+#line 8698 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  expl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:8191: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8705: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_expl=yes
+  glibcpp_cv_func_expl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_expl=no
+  glibcpp_cv_func_expl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_expl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_expl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_expl_use" 1>&6
+  if test x$glibcpp_cv_func_expl_use = x"yes"; then
     for ac_func in expl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8213: checking for $ac_func" >&5
+echo "configure:8730: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8218 "configure"
+#line 8735 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8237,7 +8754,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8241: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8758: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8264,52 +8781,59 @@ done
   fi
 
   
+  echo $ac_n "checking for fabsl declaration""... $ac_c" 1>&6
+echo "configure:8786: checking for fabsl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_fabsl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for fabsl declaration""... $ac_c" 1>&6
-echo "configure:8277: checking for fabsl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 8279 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 8800 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  fabsl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:8286: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8807: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_fabsl=yes
+  glibcpp_cv_func_fabsl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_fabsl=no
+  glibcpp_cv_func_fabsl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_fabsl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_fabsl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_fabsl_use" 1>&6
+  if test x$glibcpp_cv_func_fabsl_use = x"yes"; then
     for ac_func in fabsl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8308: checking for $ac_func" >&5
+echo "configure:8832: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8313 "configure"
+#line 8837 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8332,7 +8856,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8336: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8860: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8359,52 +8883,59 @@ done
   fi
 
   
+  echo $ac_n "checking for floorl declaration""... $ac_c" 1>&6
+echo "configure:8888: checking for floorl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_floorl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for floorl declaration""... $ac_c" 1>&6
-echo "configure:8372: checking for floorl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 8374 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 8902 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  floorl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:8381: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8909: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_floorl=yes
+  glibcpp_cv_func_floorl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_floorl=no
+  glibcpp_cv_func_floorl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_floorl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_floorl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_floorl_use" 1>&6
+  if test x$glibcpp_cv_func_floorl_use = x"yes"; then
     for ac_func in floorl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8403: checking for $ac_func" >&5
+echo "configure:8934: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8408 "configure"
+#line 8939 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8427,7 +8958,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8431: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8962: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8454,52 +8985,59 @@ done
   fi
 
   
+  echo $ac_n "checking for fmodl declaration""... $ac_c" 1>&6
+echo "configure:8990: checking for fmodl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_fmodl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for fmodl declaration""... $ac_c" 1>&6
-echo "configure:8467: checking for fmodl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 8469 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 9004 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  fmodl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:8476: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9011: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_fmodl=yes
+  glibcpp_cv_func_fmodl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_fmodl=no
+  glibcpp_cv_func_fmodl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_fmodl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_fmodl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_fmodl_use" 1>&6
+  if test x$glibcpp_cv_func_fmodl_use = x"yes"; then
     for ac_func in fmodl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8498: checking for $ac_func" >&5
+echo "configure:9036: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8503 "configure"
+#line 9041 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8522,7 +9060,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8526: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9064: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8549,52 +9087,59 @@ done
   fi
 
   
+  echo $ac_n "checking for frexpl declaration""... $ac_c" 1>&6
+echo "configure:9092: checking for frexpl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_frexpl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for frexpl declaration""... $ac_c" 1>&6
-echo "configure:8562: checking for frexpl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 8564 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 9106 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  frexpl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:8571: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9113: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_frexpl=yes
+  glibcpp_cv_func_frexpl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_frexpl=no
+  glibcpp_cv_func_frexpl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_frexpl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_frexpl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_frexpl_use" 1>&6
+  if test x$glibcpp_cv_func_frexpl_use = x"yes"; then
     for ac_func in frexpl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8593: checking for $ac_func" >&5
+echo "configure:9138: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8598 "configure"
+#line 9143 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8617,7 +9162,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8621: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9166: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8644,52 +9189,59 @@ done
   fi
 
   
+  echo $ac_n "checking for ldexpl declaration""... $ac_c" 1>&6
+echo "configure:9194: checking for ldexpl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_ldexpl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for ldexpl declaration""... $ac_c" 1>&6
-echo "configure:8657: checking for ldexpl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 8659 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 9208 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  ldexpl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:8666: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9215: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_ldexpl=yes
+  glibcpp_cv_func_ldexpl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_ldexpl=no
+  glibcpp_cv_func_ldexpl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_ldexpl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_ldexpl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_ldexpl_use" 1>&6
+  if test x$glibcpp_cv_func_ldexpl_use = x"yes"; then
     for ac_func in ldexpl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8688: checking for $ac_func" >&5
+echo "configure:9240: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8693 "configure"
+#line 9245 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8712,7 +9264,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8716: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9268: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8739,52 +9291,59 @@ done
   fi
 
   
+  echo $ac_n "checking for logl declaration""... $ac_c" 1>&6
+echo "configure:9296: checking for logl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_logl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for logl declaration""... $ac_c" 1>&6
-echo "configure:8752: checking for logl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 8754 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 9310 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  logl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:8761: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9317: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_logl=yes
+  glibcpp_cv_func_logl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_logl=no
+  glibcpp_cv_func_logl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_logl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_logl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_logl_use" 1>&6
+  if test x$glibcpp_cv_func_logl_use = x"yes"; then
     for ac_func in logl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8783: checking for $ac_func" >&5
+echo "configure:9342: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8788 "configure"
+#line 9347 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8807,7 +9366,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8811: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9370: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8834,52 +9393,59 @@ done
   fi
 
   
+  echo $ac_n "checking for log10l declaration""... $ac_c" 1>&6
+echo "configure:9398: checking for log10l declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_log10l_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for log10l declaration""... $ac_c" 1>&6
-echo "configure:8847: checking for log10l declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 8849 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 9412 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  log10l(0);
 ; return 0; }
 EOF
-if { (eval echo configure:8856: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9419: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_log10l=yes
+  glibcpp_cv_func_log10l_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_log10l=no
+  glibcpp_cv_func_log10l_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_log10l" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_log10l = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_log10l_use" 1>&6
+  if test x$glibcpp_cv_func_log10l_use = x"yes"; then
     for ac_func in log10l
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8878: checking for $ac_func" >&5
+echo "configure:9444: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8883 "configure"
+#line 9449 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8902,7 +9468,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8906: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9472: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8929,52 +9495,59 @@ done
   fi
 
   
+  echo $ac_n "checking for modfl declaration""... $ac_c" 1>&6
+echo "configure:9500: checking for modfl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_modfl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for modfl declaration""... $ac_c" 1>&6
-echo "configure:8942: checking for modfl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 8944 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 9514 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  modfl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:8951: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9521: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_modfl=yes
+  glibcpp_cv_func_modfl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_modfl=no
+  glibcpp_cv_func_modfl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_modfl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_modfl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_modfl_use" 1>&6
+  if test x$glibcpp_cv_func_modfl_use = x"yes"; then
     for ac_func in modfl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8973: checking for $ac_func" >&5
+echo "configure:9546: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8978 "configure"
+#line 9551 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8997,7 +9570,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9001: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9574: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9024,52 +9597,59 @@ done
   fi
 
   
+  echo $ac_n "checking for powl declaration""... $ac_c" 1>&6
+echo "configure:9602: checking for powl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_powl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for powl declaration""... $ac_c" 1>&6
-echo "configure:9037: checking for powl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 9039 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 9616 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  powl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:9046: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9623: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_powl=yes
+  glibcpp_cv_func_powl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_powl=no
+  glibcpp_cv_func_powl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_powl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_powl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_powl_use" 1>&6
+  if test x$glibcpp_cv_func_powl_use = x"yes"; then
     for ac_func in powl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9068: checking for $ac_func" >&5
+echo "configure:9648: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9073 "configure"
+#line 9653 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9092,7 +9672,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9096: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9676: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9119,52 +9699,59 @@ done
   fi
 
   
+  echo $ac_n "checking for sinl declaration""... $ac_c" 1>&6
+echo "configure:9704: checking for sinl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_sinl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for sinl declaration""... $ac_c" 1>&6
-echo "configure:9132: checking for sinl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 9134 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 9718 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sinl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:9141: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9725: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_sinl=yes
+  glibcpp_cv_func_sinl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_sinl=no
+  glibcpp_cv_func_sinl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_sinl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_sinl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_sinl_use" 1>&6
+  if test x$glibcpp_cv_func_sinl_use = x"yes"; then
     for ac_func in sinl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9163: checking for $ac_func" >&5
+echo "configure:9750: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9168 "configure"
+#line 9755 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9187,7 +9774,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9191: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9778: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9214,52 +9801,59 @@ done
   fi
 
   
+  echo $ac_n "checking for sinhl declaration""... $ac_c" 1>&6
+echo "configure:9806: checking for sinhl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_sinhl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for sinhl declaration""... $ac_c" 1>&6
-echo "configure:9227: checking for sinhl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 9229 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 9820 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sinhl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:9236: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9827: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_sinhl=yes
+  glibcpp_cv_func_sinhl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_sinhl=no
+  glibcpp_cv_func_sinhl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_sinhl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_sinhl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_sinhl_use" 1>&6
+  if test x$glibcpp_cv_func_sinhl_use = x"yes"; then
     for ac_func in sinhl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9258: checking for $ac_func" >&5
+echo "configure:9852: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9263 "configure"
+#line 9857 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9282,7 +9876,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9286: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9880: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9309,52 +9903,59 @@ done
   fi
 
   
+  echo $ac_n "checking for sqrtl declaration""... $ac_c" 1>&6
+echo "configure:9908: checking for sqrtl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_sqrtl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for sqrtl declaration""... $ac_c" 1>&6
-echo "configure:9322: checking for sqrtl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 9324 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 9922 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sqrtl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:9331: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9929: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_sqrtl=yes
+  glibcpp_cv_func_sqrtl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_sqrtl=no
+  glibcpp_cv_func_sqrtl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_sqrtl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_sqrtl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_sqrtl_use" 1>&6
+  if test x$glibcpp_cv_func_sqrtl_use = x"yes"; then
     for ac_func in sqrtl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9353: checking for $ac_func" >&5
+echo "configure:9954: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9358 "configure"
+#line 9959 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9377,7 +9978,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9381: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9982: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9404,52 +10005,59 @@ done
   fi
 
   
+  echo $ac_n "checking for tanl declaration""... $ac_c" 1>&6
+echo "configure:10010: checking for tanl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_tanl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for tanl declaration""... $ac_c" 1>&6
-echo "configure:9417: checking for tanl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 9419 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 10024 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  tanl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:9426: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10031: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_tanl=yes
+  glibcpp_cv_func_tanl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_tanl=no
+  glibcpp_cv_func_tanl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_tanl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_tanl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_tanl_use" 1>&6
+  if test x$glibcpp_cv_func_tanl_use = x"yes"; then
     for ac_func in tanl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9448: checking for $ac_func" >&5
+echo "configure:10056: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9453 "configure"
+#line 10061 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9472,7 +10080,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9476: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10084: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9499,52 +10107,59 @@ done
   fi
 
   
+  echo $ac_n "checking for tanhl declaration""... $ac_c" 1>&6
+echo "configure:10112: checking for tanhl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_tanhl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for tanhl declaration""... $ac_c" 1>&6
-echo "configure:9512: checking for tanhl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 9514 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 10126 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  tanhl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:9521: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10133: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_tanhl=yes
+  glibcpp_cv_func_tanhl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_tanhl=no
+  glibcpp_cv_func_tanhl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_tanhl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_tanhl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_tanhl_use" 1>&6
+  if test x$glibcpp_cv_func_tanhl_use = x"yes"; then
     for ac_func in tanhl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9543: checking for $ac_func" >&5
+echo "configure:10158: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9548 "configure"
+#line 10163 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9567,7 +10182,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9571: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10186: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9594,52 +10209,59 @@ done
   fi
 
   
+  echo $ac_n "checking for sincosl declaration""... $ac_c" 1>&6
+echo "configure:10214: checking for sincosl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_sincosl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for sincosl declaration""... $ac_c" 1>&6
-echo "configure:9607: checking for sincosl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 9609 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 10228 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sincosl(0, 0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:9616: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10235: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_sincosl=yes
+  glibcpp_cv_func_sincosl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_sincosl=no
+  glibcpp_cv_func_sincosl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_sincosl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_sincosl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_sincosl_use" 1>&6
+  if test x$glibcpp_cv_func_sincosl_use = x"yes"; then
     for ac_func in sincosl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9638: checking for $ac_func" >&5
+echo "configure:10260: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9643 "configure"
+#line 10265 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9662,7 +10284,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9666: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10288: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9689,52 +10311,59 @@ done
   fi
 
   
+  echo $ac_n "checking for finitel declaration""... $ac_c" 1>&6
+echo "configure:10316: checking for finitel declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func_finitel_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for finitel declaration""... $ac_c" 1>&6
-echo "configure:9702: checking for finitel declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 9704 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 10330 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  finitel(0);
 ; return 0; }
 EOF
-if { (eval echo configure:9711: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10337: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use_finitel=yes
+  glibcpp_cv_func_finitel_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use_finitel=no
+  glibcpp_cv_func_finitel_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use_finitel" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use_finitel = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func_finitel_use" 1>&6
+  if test x$glibcpp_cv_func_finitel_use = x"yes"; then
     for ac_func in finitel
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9733: checking for $ac_func" >&5
+echo "configure:10362: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9738 "configure"
+#line 10367 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9757,7 +10386,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9761: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10390: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9785,52 +10414,59 @@ done
 
 
             
+  echo $ac_n "checking for _isinf declaration""... $ac_c" 1>&6
+echo "configure:10419: checking for _isinf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__isinf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _isinf declaration""... $ac_c" 1>&6
-echo "configure:9798: checking for _isinf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 9800 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 10433 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _isinf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:9807: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10440: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__isinf=yes
+  glibcpp_cv_func__isinf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__isinf=no
+  glibcpp_cv_func__isinf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__isinf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__isinf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__isinf_use" 1>&6
+  if test x$glibcpp_cv_func__isinf_use = x"yes"; then
     for ac_func in _isinf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9829: checking for $ac_func" >&5
+echo "configure:10465: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9834 "configure"
+#line 10470 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9853,7 +10489,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9857: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10493: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9880,52 +10516,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _isnan declaration""... $ac_c" 1>&6
+echo "configure:10521: checking for _isnan declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__isnan_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _isnan declaration""... $ac_c" 1>&6
-echo "configure:9893: checking for _isnan declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 9895 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 10535 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _isnan(0);
 ; return 0; }
 EOF
-if { (eval echo configure:9902: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10542: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__isnan=yes
+  glibcpp_cv_func__isnan_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__isnan=no
+  glibcpp_cv_func__isnan_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__isnan" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__isnan = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__isnan_use" 1>&6
+  if test x$glibcpp_cv_func__isnan_use = x"yes"; then
     for ac_func in _isnan
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9924: checking for $ac_func" >&5
+echo "configure:10567: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9929 "configure"
+#line 10572 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9948,7 +10591,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9952: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10595: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9975,52 +10618,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _finite declaration""... $ac_c" 1>&6
+echo "configure:10623: checking for _finite declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__finite_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _finite declaration""... $ac_c" 1>&6
-echo "configure:9988: checking for _finite declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 9990 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 10637 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _finite(0);
 ; return 0; }
 EOF
-if { (eval echo configure:9997: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10644: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__finite=yes
+  glibcpp_cv_func__finite_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__finite=no
+  glibcpp_cv_func__finite_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__finite" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__finite = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__finite_use" 1>&6
+  if test x$glibcpp_cv_func__finite_use = x"yes"; then
     for ac_func in _finite
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10019: checking for $ac_func" >&5
+echo "configure:10669: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10024 "configure"
+#line 10674 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10043,7 +10693,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10047: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10697: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10070,52 +10720,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _copysign declaration""... $ac_c" 1>&6
+echo "configure:10725: checking for _copysign declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__copysign_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _copysign declaration""... $ac_c" 1>&6
-echo "configure:10083: checking for _copysign declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 10085 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 10739 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _copysign(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:10092: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10746: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__copysign=yes
+  glibcpp_cv_func__copysign_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__copysign=no
+  glibcpp_cv_func__copysign_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__copysign" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__copysign = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__copysign_use" 1>&6
+  if test x$glibcpp_cv_func__copysign_use = x"yes"; then
     for ac_func in _copysign
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10114: checking for $ac_func" >&5
+echo "configure:10771: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10119 "configure"
+#line 10776 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10138,7 +10795,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10142: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10799: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10165,52 +10822,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _sincos declaration""... $ac_c" 1>&6
+echo "configure:10827: checking for _sincos declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__sincos_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _sincos declaration""... $ac_c" 1>&6
-echo "configure:10178: checking for _sincos declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 10180 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 10841 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sincos(0, 0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:10187: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10848: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__sincos=yes
+  glibcpp_cv_func__sincos_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__sincos=no
+  glibcpp_cv_func__sincos_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__sincos" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__sincos = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__sincos_use" 1>&6
+  if test x$glibcpp_cv_func__sincos_use = x"yes"; then
     for ac_func in _sincos
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10209: checking for $ac_func" >&5
+echo "configure:10873: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10214 "configure"
+#line 10878 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10233,7 +10897,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10237: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10901: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10260,52 +10924,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _fpclass declaration""... $ac_c" 1>&6
+echo "configure:10929: checking for _fpclass declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__fpclass_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _fpclass declaration""... $ac_c" 1>&6
-echo "configure:10273: checking for _fpclass declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 10275 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 10943 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _fpclass(0);
 ; return 0; }
 EOF
-if { (eval echo configure:10282: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10950: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__fpclass=yes
+  glibcpp_cv_func__fpclass_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__fpclass=no
+  glibcpp_cv_func__fpclass_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__fpclass" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__fpclass = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__fpclass_use" 1>&6
+  if test x$glibcpp_cv_func__fpclass_use = x"yes"; then
     for ac_func in _fpclass
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10304: checking for $ac_func" >&5
+echo "configure:10975: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10309 "configure"
+#line 10980 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10328,7 +10999,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10332: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11003: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10355,52 +11026,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _qfpclass declaration""... $ac_c" 1>&6
+echo "configure:11031: checking for _qfpclass declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__qfpclass_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _qfpclass declaration""... $ac_c" 1>&6
-echo "configure:10368: checking for _qfpclass declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 10370 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 11045 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _qfpclass(0);
 ; return 0; }
 EOF
-if { (eval echo configure:10377: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11052: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__qfpclass=yes
+  glibcpp_cv_func__qfpclass_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__qfpclass=no
+  glibcpp_cv_func__qfpclass_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__qfpclass" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__qfpclass = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__qfpclass_use" 1>&6
+  if test x$glibcpp_cv_func__qfpclass_use = x"yes"; then
     for ac_func in _qfpclass
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10399: checking for $ac_func" >&5
+echo "configure:11077: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10404 "configure"
+#line 11082 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10423,7 +11101,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10427: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11105: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10451,52 +11129,59 @@ done
 
 
     
+  echo $ac_n "checking for _isnanf declaration""... $ac_c" 1>&6
+echo "configure:11134: checking for _isnanf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__isnanf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _isnanf declaration""... $ac_c" 1>&6
-echo "configure:10464: checking for _isnanf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 10466 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 11148 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _isnanf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:10473: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11155: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__isnanf=yes
+  glibcpp_cv_func__isnanf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__isnanf=no
+  glibcpp_cv_func__isnanf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__isnanf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__isnanf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__isnanf_use" 1>&6
+  if test x$glibcpp_cv_func__isnanf_use = x"yes"; then
     for ac_func in _isnanf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10495: checking for $ac_func" >&5
+echo "configure:11180: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10500 "configure"
+#line 11185 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10519,7 +11204,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10523: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11208: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10546,52 +11231,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _isinff declaration""... $ac_c" 1>&6
+echo "configure:11236: checking for _isinff declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__isinff_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _isinff declaration""... $ac_c" 1>&6
-echo "configure:10559: checking for _isinff declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 10561 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 11250 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _isinff(0);
 ; return 0; }
 EOF
-if { (eval echo configure:10568: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11257: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__isinff=yes
+  glibcpp_cv_func__isinff_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__isinff=no
+  glibcpp_cv_func__isinff_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__isinff" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__isinff = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__isinff_use" 1>&6
+  if test x$glibcpp_cv_func__isinff_use = x"yes"; then
     for ac_func in _isinff
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10590: checking for $ac_func" >&5
+echo "configure:11282: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10595 "configure"
+#line 11287 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10614,7 +11306,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10618: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11310: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10641,52 +11333,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _acosf declaration""... $ac_c" 1>&6
+echo "configure:11338: checking for _acosf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__acosf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _acosf declaration""... $ac_c" 1>&6
-echo "configure:10654: checking for _acosf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 10656 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 11352 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _acosf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:10663: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11359: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__acosf=yes
+  glibcpp_cv_func__acosf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__acosf=no
+  glibcpp_cv_func__acosf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__acosf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__acosf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__acosf_use" 1>&6
+  if test x$glibcpp_cv_func__acosf_use = x"yes"; then
     for ac_func in _acosf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10685: checking for $ac_func" >&5
+echo "configure:11384: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10690 "configure"
+#line 11389 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10709,7 +11408,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10713: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11412: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10736,52 +11435,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _asinf declaration""... $ac_c" 1>&6
+echo "configure:11440: checking for _asinf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__asinf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _asinf declaration""... $ac_c" 1>&6
-echo "configure:10749: checking for _asinf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 10751 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 11454 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _asinf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:10758: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11461: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__asinf=yes
+  glibcpp_cv_func__asinf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__asinf=no
+  glibcpp_cv_func__asinf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__asinf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__asinf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__asinf_use" 1>&6
+  if test x$glibcpp_cv_func__asinf_use = x"yes"; then
     for ac_func in _asinf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10780: checking for $ac_func" >&5
+echo "configure:11486: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10785 "configure"
+#line 11491 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10804,7 +11510,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10808: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11514: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10831,52 +11537,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _atanf declaration""... $ac_c" 1>&6
+echo "configure:11542: checking for _atanf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__atanf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _atanf declaration""... $ac_c" 1>&6
-echo "configure:10844: checking for _atanf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 10846 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 11556 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _atanf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:10853: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11563: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__atanf=yes
+  glibcpp_cv_func__atanf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__atanf=no
+  glibcpp_cv_func__atanf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__atanf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__atanf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__atanf_use" 1>&6
+  if test x$glibcpp_cv_func__atanf_use = x"yes"; then
     for ac_func in _atanf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10875: checking for $ac_func" >&5
+echo "configure:11588: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10880 "configure"
+#line 11593 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10899,7 +11612,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10903: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11616: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10926,52 +11639,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _atan2f declaration""... $ac_c" 1>&6
+echo "configure:11644: checking for _atan2f declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__atan2f_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _atan2f declaration""... $ac_c" 1>&6
-echo "configure:10939: checking for _atan2f declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 10941 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 11658 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _atan2f(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:10948: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11665: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__atan2f=yes
+  glibcpp_cv_func__atan2f_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__atan2f=no
+  glibcpp_cv_func__atan2f_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__atan2f" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__atan2f = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__atan2f_use" 1>&6
+  if test x$glibcpp_cv_func__atan2f_use = x"yes"; then
     for ac_func in _atan2f
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10970: checking for $ac_func" >&5
+echo "configure:11690: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10975 "configure"
+#line 11695 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10994,7 +11714,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10998: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11718: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11021,52 +11741,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _ceilf declaration""... $ac_c" 1>&6
+echo "configure:11746: checking for _ceilf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__ceilf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _ceilf declaration""... $ac_c" 1>&6
-echo "configure:11034: checking for _ceilf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 11036 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 11760 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _ceilf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:11043: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11767: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__ceilf=yes
+  glibcpp_cv_func__ceilf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__ceilf=no
+  glibcpp_cv_func__ceilf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__ceilf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__ceilf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__ceilf_use" 1>&6
+  if test x$glibcpp_cv_func__ceilf_use = x"yes"; then
     for ac_func in _ceilf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11065: checking for $ac_func" >&5
+echo "configure:11792: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11070 "configure"
+#line 11797 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11089,7 +11816,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11093: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11820: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11116,52 +11843,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _cosf declaration""... $ac_c" 1>&6
+echo "configure:11848: checking for _cosf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__cosf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _cosf declaration""... $ac_c" 1>&6
-echo "configure:11129: checking for _cosf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 11131 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 11862 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _cosf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:11138: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11869: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__cosf=yes
+  glibcpp_cv_func__cosf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__cosf=no
+  glibcpp_cv_func__cosf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__cosf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__cosf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__cosf_use" 1>&6
+  if test x$glibcpp_cv_func__cosf_use = x"yes"; then
     for ac_func in _cosf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11160: checking for $ac_func" >&5
+echo "configure:11894: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11165 "configure"
+#line 11899 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11184,7 +11918,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11188: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11922: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11211,52 +11945,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _coshf declaration""... $ac_c" 1>&6
+echo "configure:11950: checking for _coshf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__coshf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _coshf declaration""... $ac_c" 1>&6
-echo "configure:11224: checking for _coshf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 11226 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 11964 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _coshf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:11233: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11971: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__coshf=yes
+  glibcpp_cv_func__coshf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__coshf=no
+  glibcpp_cv_func__coshf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__coshf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__coshf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__coshf_use" 1>&6
+  if test x$glibcpp_cv_func__coshf_use = x"yes"; then
     for ac_func in _coshf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11255: checking for $ac_func" >&5
+echo "configure:11996: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11260 "configure"
+#line 12001 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11279,7 +12020,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11283: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12024: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11306,52 +12047,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _expf declaration""... $ac_c" 1>&6
+echo "configure:12052: checking for _expf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__expf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _expf declaration""... $ac_c" 1>&6
-echo "configure:11319: checking for _expf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 11321 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 12066 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _expf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:11328: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12073: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__expf=yes
+  glibcpp_cv_func__expf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__expf=no
+  glibcpp_cv_func__expf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__expf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__expf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__expf_use" 1>&6
+  if test x$glibcpp_cv_func__expf_use = x"yes"; then
     for ac_func in _expf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11350: checking for $ac_func" >&5
+echo "configure:12098: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11355 "configure"
+#line 12103 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11374,7 +12122,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11378: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12126: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11401,52 +12149,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _fabsf declaration""... $ac_c" 1>&6
+echo "configure:12154: checking for _fabsf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__fabsf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _fabsf declaration""... $ac_c" 1>&6
-echo "configure:11414: checking for _fabsf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 11416 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 12168 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _fabsf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:11423: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12175: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__fabsf=yes
+  glibcpp_cv_func__fabsf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__fabsf=no
+  glibcpp_cv_func__fabsf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__fabsf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__fabsf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__fabsf_use" 1>&6
+  if test x$glibcpp_cv_func__fabsf_use = x"yes"; then
     for ac_func in _fabsf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11445: checking for $ac_func" >&5
+echo "configure:12200: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11450 "configure"
+#line 12205 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11469,7 +12224,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11473: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12228: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11496,52 +12251,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _floorf declaration""... $ac_c" 1>&6
+echo "configure:12256: checking for _floorf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__floorf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _floorf declaration""... $ac_c" 1>&6
-echo "configure:11509: checking for _floorf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 11511 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 12270 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _floorf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:11518: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12277: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__floorf=yes
+  glibcpp_cv_func__floorf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__floorf=no
+  glibcpp_cv_func__floorf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__floorf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__floorf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__floorf_use" 1>&6
+  if test x$glibcpp_cv_func__floorf_use = x"yes"; then
     for ac_func in _floorf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11540: checking for $ac_func" >&5
+echo "configure:12302: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11545 "configure"
+#line 12307 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11564,7 +12326,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11568: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12330: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11591,52 +12353,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _fmodf declaration""... $ac_c" 1>&6
+echo "configure:12358: checking for _fmodf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__fmodf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _fmodf declaration""... $ac_c" 1>&6
-echo "configure:11604: checking for _fmodf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 11606 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 12372 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _fmodf(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:11613: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12379: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__fmodf=yes
+  glibcpp_cv_func__fmodf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__fmodf=no
+  glibcpp_cv_func__fmodf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__fmodf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__fmodf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__fmodf_use" 1>&6
+  if test x$glibcpp_cv_func__fmodf_use = x"yes"; then
     for ac_func in _fmodf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11635: checking for $ac_func" >&5
+echo "configure:12404: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11640 "configure"
+#line 12409 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11659,7 +12428,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11663: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12432: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11686,52 +12455,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _frexpf declaration""... $ac_c" 1>&6
+echo "configure:12460: checking for _frexpf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__frexpf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _frexpf declaration""... $ac_c" 1>&6
-echo "configure:11699: checking for _frexpf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 11701 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 12474 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _frexpf(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:11708: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12481: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__frexpf=yes
+  glibcpp_cv_func__frexpf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__frexpf=no
+  glibcpp_cv_func__frexpf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__frexpf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__frexpf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__frexpf_use" 1>&6
+  if test x$glibcpp_cv_func__frexpf_use = x"yes"; then
     for ac_func in _frexpf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11730: checking for $ac_func" >&5
+echo "configure:12506: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11735 "configure"
+#line 12511 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11754,7 +12530,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11758: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12534: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11781,52 +12557,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _ldexpf declaration""... $ac_c" 1>&6
+echo "configure:12562: checking for _ldexpf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__ldexpf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _ldexpf declaration""... $ac_c" 1>&6
-echo "configure:11794: checking for _ldexpf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 11796 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 12576 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _ldexpf(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:11803: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12583: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__ldexpf=yes
+  glibcpp_cv_func__ldexpf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__ldexpf=no
+  glibcpp_cv_func__ldexpf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__ldexpf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__ldexpf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__ldexpf_use" 1>&6
+  if test x$glibcpp_cv_func__ldexpf_use = x"yes"; then
     for ac_func in _ldexpf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11825: checking for $ac_func" >&5
+echo "configure:12608: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11830 "configure"
+#line 12613 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11849,7 +12632,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11853: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12636: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11876,52 +12659,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _logf declaration""... $ac_c" 1>&6
+echo "configure:12664: checking for _logf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__logf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _logf declaration""... $ac_c" 1>&6
-echo "configure:11889: checking for _logf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 11891 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 12678 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _logf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:11898: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12685: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__logf=yes
+  glibcpp_cv_func__logf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__logf=no
+  glibcpp_cv_func__logf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__logf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__logf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__logf_use" 1>&6
+  if test x$glibcpp_cv_func__logf_use = x"yes"; then
     for ac_func in _logf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11920: checking for $ac_func" >&5
+echo "configure:12710: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11925 "configure"
+#line 12715 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11944,7 +12734,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11948: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12738: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11971,52 +12761,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _log10f declaration""... $ac_c" 1>&6
+echo "configure:12766: checking for _log10f declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__log10f_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _log10f declaration""... $ac_c" 1>&6
-echo "configure:11984: checking for _log10f declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 11986 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 12780 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _log10f(0);
 ; return 0; }
 EOF
-if { (eval echo configure:11993: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12787: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__log10f=yes
+  glibcpp_cv_func__log10f_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__log10f=no
+  glibcpp_cv_func__log10f_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__log10f" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__log10f = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__log10f_use" 1>&6
+  if test x$glibcpp_cv_func__log10f_use = x"yes"; then
     for ac_func in _log10f
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12015: checking for $ac_func" >&5
+echo "configure:12812: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12020 "configure"
+#line 12817 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12039,7 +12836,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12043: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12840: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12066,52 +12863,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _modff declaration""... $ac_c" 1>&6
+echo "configure:12868: checking for _modff declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__modff_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _modff declaration""... $ac_c" 1>&6
-echo "configure:12079: checking for _modff declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 12081 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 12882 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _modff(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:12088: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12889: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__modff=yes
+  glibcpp_cv_func__modff_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__modff=no
+  glibcpp_cv_func__modff_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__modff" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__modff = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__modff_use" 1>&6
+  if test x$glibcpp_cv_func__modff_use = x"yes"; then
     for ac_func in _modff
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12110: checking for $ac_func" >&5
+echo "configure:12914: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12115 "configure"
+#line 12919 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12134,7 +12938,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12138: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12942: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12161,52 +12965,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _powf declaration""... $ac_c" 1>&6
+echo "configure:12970: checking for _powf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__powf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _powf declaration""... $ac_c" 1>&6
-echo "configure:12174: checking for _powf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 12176 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 12984 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _powf(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:12183: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12991: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__powf=yes
+  glibcpp_cv_func__powf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__powf=no
+  glibcpp_cv_func__powf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__powf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__powf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__powf_use" 1>&6
+  if test x$glibcpp_cv_func__powf_use = x"yes"; then
     for ac_func in _powf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12205: checking for $ac_func" >&5
+echo "configure:13016: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12210 "configure"
+#line 13021 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12229,7 +13040,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12233: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13044: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12256,52 +13067,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _sinf declaration""... $ac_c" 1>&6
+echo "configure:13072: checking for _sinf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__sinf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _sinf declaration""... $ac_c" 1>&6
-echo "configure:12269: checking for _sinf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 12271 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 13086 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sinf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:12278: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13093: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__sinf=yes
+  glibcpp_cv_func__sinf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__sinf=no
+  glibcpp_cv_func__sinf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__sinf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__sinf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__sinf_use" 1>&6
+  if test x$glibcpp_cv_func__sinf_use = x"yes"; then
     for ac_func in _sinf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12300: checking for $ac_func" >&5
+echo "configure:13118: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12305 "configure"
+#line 13123 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12324,7 +13142,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12328: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13146: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12351,52 +13169,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _sinhf declaration""... $ac_c" 1>&6
+echo "configure:13174: checking for _sinhf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__sinhf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _sinhf declaration""... $ac_c" 1>&6
-echo "configure:12364: checking for _sinhf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 12366 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 13188 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sinhf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:12373: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13195: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__sinhf=yes
+  glibcpp_cv_func__sinhf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__sinhf=no
+  glibcpp_cv_func__sinhf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__sinhf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__sinhf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__sinhf_use" 1>&6
+  if test x$glibcpp_cv_func__sinhf_use = x"yes"; then
     for ac_func in _sinhf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12395: checking for $ac_func" >&5
+echo "configure:13220: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12400 "configure"
+#line 13225 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12419,7 +13244,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12423: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13248: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12446,52 +13271,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _sqrtf declaration""... $ac_c" 1>&6
+echo "configure:13276: checking for _sqrtf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__sqrtf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _sqrtf declaration""... $ac_c" 1>&6
-echo "configure:12459: checking for _sqrtf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 12461 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 13290 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sqrtf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:12468: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13297: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__sqrtf=yes
+  glibcpp_cv_func__sqrtf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__sqrtf=no
+  glibcpp_cv_func__sqrtf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__sqrtf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__sqrtf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__sqrtf_use" 1>&6
+  if test x$glibcpp_cv_func__sqrtf_use = x"yes"; then
     for ac_func in _sqrtf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12490: checking for $ac_func" >&5
+echo "configure:13322: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12495 "configure"
+#line 13327 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12514,7 +13346,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12518: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13350: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12541,52 +13373,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _tanf declaration""... $ac_c" 1>&6
+echo "configure:13378: checking for _tanf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__tanf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _tanf declaration""... $ac_c" 1>&6
-echo "configure:12554: checking for _tanf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 12556 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 13392 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _tanf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:12563: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13399: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__tanf=yes
+  glibcpp_cv_func__tanf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__tanf=no
+  glibcpp_cv_func__tanf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__tanf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__tanf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__tanf_use" 1>&6
+  if test x$glibcpp_cv_func__tanf_use = x"yes"; then
     for ac_func in _tanf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12585: checking for $ac_func" >&5
+echo "configure:13424: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12590 "configure"
+#line 13429 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12609,7 +13448,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12613: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13452: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12636,52 +13475,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _tanhf declaration""... $ac_c" 1>&6
+echo "configure:13480: checking for _tanhf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__tanhf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _tanhf declaration""... $ac_c" 1>&6
-echo "configure:12649: checking for _tanhf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 12651 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 13494 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _tanhf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:12658: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13501: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__tanhf=yes
+  glibcpp_cv_func__tanhf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__tanhf=no
+  glibcpp_cv_func__tanhf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__tanhf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__tanhf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__tanhf_use" 1>&6
+  if test x$glibcpp_cv_func__tanhf_use = x"yes"; then
     for ac_func in _tanhf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12680: checking for $ac_func" >&5
+echo "configure:13526: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12685 "configure"
+#line 13531 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12704,7 +13550,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12708: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13554: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12731,52 +13577,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _sincosf declaration""... $ac_c" 1>&6
+echo "configure:13582: checking for _sincosf declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__sincosf_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _sincosf declaration""... $ac_c" 1>&6
-echo "configure:12744: checking for _sincosf declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 12746 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 13596 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sincosf(0, 0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:12753: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13603: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__sincosf=yes
+  glibcpp_cv_func__sincosf_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__sincosf=no
+  glibcpp_cv_func__sincosf_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__sincosf" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__sincosf = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__sincosf_use" 1>&6
+  if test x$glibcpp_cv_func__sincosf_use = x"yes"; then
     for ac_func in _sincosf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12775: checking for $ac_func" >&5
+echo "configure:13628: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12780 "configure"
+#line 13633 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12799,7 +13652,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12803: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13656: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12826,52 +13679,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _finitef declaration""... $ac_c" 1>&6
+echo "configure:13684: checking for _finitef declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__finitef_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _finitef declaration""... $ac_c" 1>&6
-echo "configure:12839: checking for _finitef declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 12841 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 13698 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _finitef(0);
 ; return 0; }
 EOF
-if { (eval echo configure:12848: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13705: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__finitef=yes
+  glibcpp_cv_func__finitef_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__finitef=no
+  glibcpp_cv_func__finitef_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__finitef" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__finitef = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__finitef_use" 1>&6
+  if test x$glibcpp_cv_func__finitef_use = x"yes"; then
     for ac_func in _finitef
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12870: checking for $ac_func" >&5
+echo "configure:13730: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12875 "configure"
+#line 13735 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12894,7 +13754,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12898: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13758: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12922,52 +13782,59 @@ done
 
 
     
+  echo $ac_n "checking for _isnanl declaration""... $ac_c" 1>&6
+echo "configure:13787: checking for _isnanl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__isnanl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _isnanl declaration""... $ac_c" 1>&6
-echo "configure:12935: checking for _isnanl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 12937 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 13801 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _isnanl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:12944: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13808: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__isnanl=yes
+  glibcpp_cv_func__isnanl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__isnanl=no
+  glibcpp_cv_func__isnanl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__isnanl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__isnanl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__isnanl_use" 1>&6
+  if test x$glibcpp_cv_func__isnanl_use = x"yes"; then
     for ac_func in _isnanl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12966: checking for $ac_func" >&5
+echo "configure:13833: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12971 "configure"
+#line 13838 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12990,7 +13857,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12994: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13861: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13017,52 +13884,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _isinfl declaration""... $ac_c" 1>&6
+echo "configure:13889: checking for _isinfl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__isinfl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _isinfl declaration""... $ac_c" 1>&6
-echo "configure:13030: checking for _isinfl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 13032 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 13903 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _isinfl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:13039: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13910: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__isinfl=yes
+  glibcpp_cv_func__isinfl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__isinfl=no
+  glibcpp_cv_func__isinfl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__isinfl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__isinfl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__isinfl_use" 1>&6
+  if test x$glibcpp_cv_func__isinfl_use = x"yes"; then
     for ac_func in _isinfl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13061: checking for $ac_func" >&5
+echo "configure:13935: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13066 "configure"
+#line 13940 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13085,7 +13959,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13089: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13963: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13112,52 +13986,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _copysignl declaration""... $ac_c" 1>&6
+echo "configure:13991: checking for _copysignl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__copysignl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _copysignl declaration""... $ac_c" 1>&6
-echo "configure:13125: checking for _copysignl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 13127 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 14005 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _copysignl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:13134: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14012: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__copysignl=yes
+  glibcpp_cv_func__copysignl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__copysignl=no
+  glibcpp_cv_func__copysignl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__copysignl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__copysignl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__copysignl_use" 1>&6
+  if test x$glibcpp_cv_func__copysignl_use = x"yes"; then
     for ac_func in _copysignl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13156: checking for $ac_func" >&5
+echo "configure:14037: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13161 "configure"
+#line 14042 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13180,7 +14061,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13184: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14065: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13207,52 +14088,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _acosl declaration""... $ac_c" 1>&6
+echo "configure:14093: checking for _acosl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__acosl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _acosl declaration""... $ac_c" 1>&6
-echo "configure:13220: checking for _acosl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 13222 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 14107 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _acosl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:13229: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14114: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__acosl=yes
+  glibcpp_cv_func__acosl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__acosl=no
+  glibcpp_cv_func__acosl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__acosl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__acosl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__acosl_use" 1>&6
+  if test x$glibcpp_cv_func__acosl_use = x"yes"; then
     for ac_func in _acosl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13251: checking for $ac_func" >&5
+echo "configure:14139: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13256 "configure"
+#line 14144 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13275,7 +14163,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13279: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14167: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13302,52 +14190,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _asinl declaration""... $ac_c" 1>&6
+echo "configure:14195: checking for _asinl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__asinl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _asinl declaration""... $ac_c" 1>&6
-echo "configure:13315: checking for _asinl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 13317 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 14209 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _asinl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:13324: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14216: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__asinl=yes
+  glibcpp_cv_func__asinl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__asinl=no
+  glibcpp_cv_func__asinl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__asinl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__asinl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__asinl_use" 1>&6
+  if test x$glibcpp_cv_func__asinl_use = x"yes"; then
     for ac_func in _asinl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13346: checking for $ac_func" >&5
+echo "configure:14241: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13351 "configure"
+#line 14246 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13370,7 +14265,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13374: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14269: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13397,52 +14292,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _atanl declaration""... $ac_c" 1>&6
+echo "configure:14297: checking for _atanl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__atanl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _atanl declaration""... $ac_c" 1>&6
-echo "configure:13410: checking for _atanl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 13412 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 14311 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _atanl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:13419: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14318: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__atanl=yes
+  glibcpp_cv_func__atanl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__atanl=no
+  glibcpp_cv_func__atanl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__atanl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__atanl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__atanl_use" 1>&6
+  if test x$glibcpp_cv_func__atanl_use = x"yes"; then
     for ac_func in _atanl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13441: checking for $ac_func" >&5
+echo "configure:14343: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13446 "configure"
+#line 14348 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13465,7 +14367,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13469: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14371: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13492,52 +14394,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _atan2l declaration""... $ac_c" 1>&6
+echo "configure:14399: checking for _atan2l declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__atan2l_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _atan2l declaration""... $ac_c" 1>&6
-echo "configure:13505: checking for _atan2l declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 13507 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 14413 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _atan2l(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:13514: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14420: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__atan2l=yes
+  glibcpp_cv_func__atan2l_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__atan2l=no
+  glibcpp_cv_func__atan2l_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__atan2l" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__atan2l = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__atan2l_use" 1>&6
+  if test x$glibcpp_cv_func__atan2l_use = x"yes"; then
     for ac_func in _atan2l
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13536: checking for $ac_func" >&5
+echo "configure:14445: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13541 "configure"
+#line 14450 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13560,7 +14469,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13564: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14473: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13587,52 +14496,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _ceill declaration""... $ac_c" 1>&6
+echo "configure:14501: checking for _ceill declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__ceill_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _ceill declaration""... $ac_c" 1>&6
-echo "configure:13600: checking for _ceill declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 13602 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 14515 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _ceill(0);
 ; return 0; }
 EOF
-if { (eval echo configure:13609: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14522: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__ceill=yes
+  glibcpp_cv_func__ceill_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__ceill=no
+  glibcpp_cv_func__ceill_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__ceill" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__ceill = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__ceill_use" 1>&6
+  if test x$glibcpp_cv_func__ceill_use = x"yes"; then
     for ac_func in _ceill
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13631: checking for $ac_func" >&5
+echo "configure:14547: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13636 "configure"
+#line 14552 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13655,7 +14571,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13659: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14575: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13682,52 +14598,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _cosl declaration""... $ac_c" 1>&6
+echo "configure:14603: checking for _cosl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__cosl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _cosl declaration""... $ac_c" 1>&6
-echo "configure:13695: checking for _cosl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 13697 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 14617 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _cosl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:13704: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14624: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__cosl=yes
+  glibcpp_cv_func__cosl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__cosl=no
+  glibcpp_cv_func__cosl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__cosl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__cosl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__cosl_use" 1>&6
+  if test x$glibcpp_cv_func__cosl_use = x"yes"; then
     for ac_func in _cosl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13726: checking for $ac_func" >&5
+echo "configure:14649: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13731 "configure"
+#line 14654 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13750,7 +14673,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13754: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14677: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13777,52 +14700,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _coshl declaration""... $ac_c" 1>&6
+echo "configure:14705: checking for _coshl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__coshl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _coshl declaration""... $ac_c" 1>&6
-echo "configure:13790: checking for _coshl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 13792 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 14719 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _coshl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:13799: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14726: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__coshl=yes
+  glibcpp_cv_func__coshl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__coshl=no
+  glibcpp_cv_func__coshl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__coshl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__coshl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__coshl_use" 1>&6
+  if test x$glibcpp_cv_func__coshl_use = x"yes"; then
     for ac_func in _coshl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13821: checking for $ac_func" >&5
+echo "configure:14751: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13826 "configure"
+#line 14756 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13845,7 +14775,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13849: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14779: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13872,52 +14802,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _expl declaration""... $ac_c" 1>&6
+echo "configure:14807: checking for _expl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__expl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _expl declaration""... $ac_c" 1>&6
-echo "configure:13885: checking for _expl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 13887 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 14821 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _expl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:13894: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14828: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__expl=yes
+  glibcpp_cv_func__expl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__expl=no
+  glibcpp_cv_func__expl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__expl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__expl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__expl_use" 1>&6
+  if test x$glibcpp_cv_func__expl_use = x"yes"; then
     for ac_func in _expl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13916: checking for $ac_func" >&5
+echo "configure:14853: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13921 "configure"
+#line 14858 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13940,7 +14877,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13944: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14881: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13967,52 +14904,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _fabsl declaration""... $ac_c" 1>&6
+echo "configure:14909: checking for _fabsl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__fabsl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _fabsl declaration""... $ac_c" 1>&6
-echo "configure:13980: checking for _fabsl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 13982 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 14923 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _fabsl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:13989: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14930: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__fabsl=yes
+  glibcpp_cv_func__fabsl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__fabsl=no
+  glibcpp_cv_func__fabsl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__fabsl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__fabsl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__fabsl_use" 1>&6
+  if test x$glibcpp_cv_func__fabsl_use = x"yes"; then
     for ac_func in _fabsl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14011: checking for $ac_func" >&5
+echo "configure:14955: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14016 "configure"
+#line 14960 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14035,7 +14979,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14039: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14983: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14062,52 +15006,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _floorl declaration""... $ac_c" 1>&6
+echo "configure:15011: checking for _floorl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__floorl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _floorl declaration""... $ac_c" 1>&6
-echo "configure:14075: checking for _floorl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 14077 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 15025 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _floorl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:14084: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15032: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__floorl=yes
+  glibcpp_cv_func__floorl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__floorl=no
+  glibcpp_cv_func__floorl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__floorl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__floorl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__floorl_use" 1>&6
+  if test x$glibcpp_cv_func__floorl_use = x"yes"; then
     for ac_func in _floorl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14106: checking for $ac_func" >&5
+echo "configure:15057: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14111 "configure"
+#line 15062 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14130,7 +15081,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14134: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15085: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14157,52 +15108,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _fmodl declaration""... $ac_c" 1>&6
+echo "configure:15113: checking for _fmodl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__fmodl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _fmodl declaration""... $ac_c" 1>&6
-echo "configure:14170: checking for _fmodl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 14172 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 15127 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _fmodl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:14179: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15134: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__fmodl=yes
+  glibcpp_cv_func__fmodl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__fmodl=no
+  glibcpp_cv_func__fmodl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__fmodl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__fmodl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__fmodl_use" 1>&6
+  if test x$glibcpp_cv_func__fmodl_use = x"yes"; then
     for ac_func in _fmodl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14201: checking for $ac_func" >&5
+echo "configure:15159: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14206 "configure"
+#line 15164 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14225,7 +15183,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14229: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15187: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14252,52 +15210,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _frexpl declaration""... $ac_c" 1>&6
+echo "configure:15215: checking for _frexpl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__frexpl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _frexpl declaration""... $ac_c" 1>&6
-echo "configure:14265: checking for _frexpl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 14267 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 15229 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _frexpl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:14274: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15236: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__frexpl=yes
+  glibcpp_cv_func__frexpl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__frexpl=no
+  glibcpp_cv_func__frexpl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__frexpl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__frexpl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__frexpl_use" 1>&6
+  if test x$glibcpp_cv_func__frexpl_use = x"yes"; then
     for ac_func in _frexpl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14296: checking for $ac_func" >&5
+echo "configure:15261: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14301 "configure"
+#line 15266 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14320,7 +15285,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14324: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15289: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14347,52 +15312,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _ldexpl declaration""... $ac_c" 1>&6
+echo "configure:15317: checking for _ldexpl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__ldexpl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _ldexpl declaration""... $ac_c" 1>&6
-echo "configure:14360: checking for _ldexpl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 14362 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 15331 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _ldexpl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:14369: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15338: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__ldexpl=yes
+  glibcpp_cv_func__ldexpl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__ldexpl=no
+  glibcpp_cv_func__ldexpl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__ldexpl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__ldexpl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__ldexpl_use" 1>&6
+  if test x$glibcpp_cv_func__ldexpl_use = x"yes"; then
     for ac_func in _ldexpl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14391: checking for $ac_func" >&5
+echo "configure:15363: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14396 "configure"
+#line 15368 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14415,7 +15387,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14419: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15391: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14442,52 +15414,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _logl declaration""... $ac_c" 1>&6
+echo "configure:15419: checking for _logl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__logl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _logl declaration""... $ac_c" 1>&6
-echo "configure:14455: checking for _logl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 14457 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 15433 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _logl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:14464: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15440: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__logl=yes
+  glibcpp_cv_func__logl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__logl=no
+  glibcpp_cv_func__logl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__logl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__logl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__logl_use" 1>&6
+  if test x$glibcpp_cv_func__logl_use = x"yes"; then
     for ac_func in _logl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14486: checking for $ac_func" >&5
+echo "configure:15465: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14491 "configure"
+#line 15470 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14510,7 +15489,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14514: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15493: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14537,52 +15516,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _log10l declaration""... $ac_c" 1>&6
+echo "configure:15521: checking for _log10l declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__log10l_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _log10l declaration""... $ac_c" 1>&6
-echo "configure:14550: checking for _log10l declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 14552 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 15535 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _log10l(0);
 ; return 0; }
 EOF
-if { (eval echo configure:14559: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15542: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__log10l=yes
+  glibcpp_cv_func__log10l_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__log10l=no
+  glibcpp_cv_func__log10l_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__log10l" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__log10l = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__log10l_use" 1>&6
+  if test x$glibcpp_cv_func__log10l_use = x"yes"; then
     for ac_func in _log10l
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14581: checking for $ac_func" >&5
+echo "configure:15567: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14586 "configure"
+#line 15572 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14605,7 +15591,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14609: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15595: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14632,52 +15618,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _modfl declaration""... $ac_c" 1>&6
+echo "configure:15623: checking for _modfl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__modfl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _modfl declaration""... $ac_c" 1>&6
-echo "configure:14645: checking for _modfl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 14647 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 15637 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _modfl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:14654: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15644: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__modfl=yes
+  glibcpp_cv_func__modfl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__modfl=no
+  glibcpp_cv_func__modfl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__modfl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__modfl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__modfl_use" 1>&6
+  if test x$glibcpp_cv_func__modfl_use = x"yes"; then
     for ac_func in _modfl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14676: checking for $ac_func" >&5
+echo "configure:15669: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14681 "configure"
+#line 15674 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14700,7 +15693,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14704: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15697: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14727,52 +15720,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _powl declaration""... $ac_c" 1>&6
+echo "configure:15725: checking for _powl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__powl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _powl declaration""... $ac_c" 1>&6
-echo "configure:14740: checking for _powl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 14742 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 15739 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _powl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:14749: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15746: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__powl=yes
+  glibcpp_cv_func__powl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__powl=no
+  glibcpp_cv_func__powl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__powl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__powl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__powl_use" 1>&6
+  if test x$glibcpp_cv_func__powl_use = x"yes"; then
     for ac_func in _powl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14771: checking for $ac_func" >&5
+echo "configure:15771: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14776 "configure"
+#line 15776 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14795,7 +15795,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14799: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15799: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14822,52 +15822,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _sinl declaration""... $ac_c" 1>&6
+echo "configure:15827: checking for _sinl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__sinl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _sinl declaration""... $ac_c" 1>&6
-echo "configure:14835: checking for _sinl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 14837 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 15841 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sinl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:14844: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15848: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__sinl=yes
+  glibcpp_cv_func__sinl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__sinl=no
+  glibcpp_cv_func__sinl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__sinl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__sinl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__sinl_use" 1>&6
+  if test x$glibcpp_cv_func__sinl_use = x"yes"; then
     for ac_func in _sinl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14866: checking for $ac_func" >&5
+echo "configure:15873: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14871 "configure"
+#line 15878 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14890,7 +15897,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14894: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15901: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14917,52 +15924,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _sinhl declaration""... $ac_c" 1>&6
+echo "configure:15929: checking for _sinhl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__sinhl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _sinhl declaration""... $ac_c" 1>&6
-echo "configure:14930: checking for _sinhl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 14932 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 15943 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sinhl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:14939: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15950: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__sinhl=yes
+  glibcpp_cv_func__sinhl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__sinhl=no
+  glibcpp_cv_func__sinhl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__sinhl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__sinhl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__sinhl_use" 1>&6
+  if test x$glibcpp_cv_func__sinhl_use = x"yes"; then
     for ac_func in _sinhl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14961: checking for $ac_func" >&5
+echo "configure:15975: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14966 "configure"
+#line 15980 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14985,7 +15999,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14989: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16003: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15012,52 +16026,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _sqrtl declaration""... $ac_c" 1>&6
+echo "configure:16031: checking for _sqrtl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__sqrtl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _sqrtl declaration""... $ac_c" 1>&6
-echo "configure:15025: checking for _sqrtl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 15027 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 16045 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sqrtl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:15034: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16052: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__sqrtl=yes
+  glibcpp_cv_func__sqrtl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__sqrtl=no
+  glibcpp_cv_func__sqrtl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__sqrtl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__sqrtl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__sqrtl_use" 1>&6
+  if test x$glibcpp_cv_func__sqrtl_use = x"yes"; then
     for ac_func in _sqrtl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15056: checking for $ac_func" >&5
+echo "configure:16077: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15061 "configure"
+#line 16082 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15080,7 +16101,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15084: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16105: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15107,52 +16128,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _tanl declaration""... $ac_c" 1>&6
+echo "configure:16133: checking for _tanl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__tanl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _tanl declaration""... $ac_c" 1>&6
-echo "configure:15120: checking for _tanl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 15122 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 16147 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _tanl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:15129: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16154: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__tanl=yes
+  glibcpp_cv_func__tanl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__tanl=no
+  glibcpp_cv_func__tanl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__tanl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__tanl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__tanl_use" 1>&6
+  if test x$glibcpp_cv_func__tanl_use = x"yes"; then
     for ac_func in _tanl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15151: checking for $ac_func" >&5
+echo "configure:16179: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15156 "configure"
+#line 16184 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15175,7 +16203,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15179: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16207: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15202,52 +16230,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _tanhl declaration""... $ac_c" 1>&6
+echo "configure:16235: checking for _tanhl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__tanhl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _tanhl declaration""... $ac_c" 1>&6
-echo "configure:15215: checking for _tanhl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 15217 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 16249 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _tanhl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:15224: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16256: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__tanhl=yes
+  glibcpp_cv_func__tanhl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__tanhl=no
+  glibcpp_cv_func__tanhl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__tanhl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__tanhl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__tanhl_use" 1>&6
+  if test x$glibcpp_cv_func__tanhl_use = x"yes"; then
     for ac_func in _tanhl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15246: checking for $ac_func" >&5
+echo "configure:16281: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15251 "configure"
+#line 16286 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15270,7 +16305,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15274: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16309: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15297,52 +16332,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _sincosl declaration""... $ac_c" 1>&6
+echo "configure:16337: checking for _sincosl declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__sincosl_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _sincosl declaration""... $ac_c" 1>&6
-echo "configure:15310: checking for _sincosl declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 15312 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 16351 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sincosl(0, 0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:15319: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16358: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__sincosl=yes
+  glibcpp_cv_func__sincosl_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__sincosl=no
+  glibcpp_cv_func__sincosl_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__sincosl" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__sincosl = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__sincosl_use" 1>&6
+  if test x$glibcpp_cv_func__sincosl_use = x"yes"; then
     for ac_func in _sincosl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15341: checking for $ac_func" >&5
+echo "configure:16383: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15346 "configure"
+#line 16388 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15365,7 +16407,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15369: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16411: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15392,52 +16434,59 @@ done
   fi
 
   
+  echo $ac_n "checking for _finitel declaration""... $ac_c" 1>&6
+echo "configure:16439: checking for _finitel declaration" >&5
+  if eval "test \"`echo '$''{'glibcpp_cv_func__finitel_use'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
   
-  ac_ext=C
+    
+    ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cxx_cross
 
-  echo $ac_n "checking for _finitel declaration""... $ac_c" 1>&6
-echo "configure:15405: checking for _finitel declaration" >&5
-  cat > conftest.$ac_ext <<EOF
-#line 15407 "configure"
+    cat > conftest.$ac_ext <<EOF
+#line 16453 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _finitel(0);
 ; return 0; }
 EOF
-if { (eval echo configure:15414: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16460: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
-  use__finitel=yes
+  glibcpp_cv_func__finitel_use=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  use__finitel=no
+  glibcpp_cv_func__finitel_use=no
 fi
 rm -f conftest*
-  echo "$ac_t""$use__finitel" 1>&6
-  ac_ext=c
+    ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
-  if test x$use__finitel = x"yes"; then
+  
+fi
+
+  echo "$ac_t""$glibcpp_cv_func__finitel_use" 1>&6
+  if test x$glibcpp_cv_func__finitel_use = x"yes"; then
     for ac_func in _finitel
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15436: checking for $ac_func" >&5
+echo "configure:16485: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15441 "configure"
+#line 16490 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15460,7 +16509,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15464: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16513: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15495,17 +16544,17 @@ done
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:15499: checking for $ac_hdr" >&5
+echo "configure:16548: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15504 "configure"
+#line 16553 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:15509: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:16558: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -15536,12 +16585,12 @@ done
   ctan ctanf ctanh ctanhf carg cargf nan hypot hypotf atan2f expf copysignf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15540: checking for $ac_func" >&5
+echo "configure:16589: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15545 "configure"
+#line 16594 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15564,7 +16613,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15568: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16617: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15599,12 +16648,12 @@ done
     csqrtl ctanhl ctanl cargl hypotl signbitl c_logl clog10l
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15603: checking for $ac_func" >&5
+echo "configure:16652: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15608 "configure"
+#line 16657 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15627,7 +16676,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15631: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16680: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15661,7 +16710,7 @@ done
   
 
   echo $ac_n "checking for GNU C++ __complex__ support""... $ac_c" 1>&6
-echo "configure:15665: checking for GNU C++ __complex__ support" >&5
+echo "configure:16714: checking for GNU C++ __complex__ support" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_complex'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -15675,7 +16724,7 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 15679 "configure"
+#line 16728 "configure"
 #include "confdefs.h"
 struct dcomplex { __complex__ double x; }; \
 		    dcomplex f(const dcomplex& x) { return dcomplex(x); }
@@ -15684,7 +16733,7 @@ int main() {
 		     dcomplex x; f(x); 
 ; return 0; }
 EOF
-if { (eval echo configure:15688: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16737: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_complex=ok
 else
@@ -15714,7 +16763,7 @@ EOF
   fi
 
   echo $ac_n "checking for GNU C++ __complex__ float support""... $ac_c" 1>&6
-echo "configure:15718: checking for GNU C++ __complex__ float support" >&5
+echo "configure:16767: checking for GNU C++ __complex__ float support" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_float_complex'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -15747,14 +16796,14 @@ cross_compiling=$ac_cv_prog_cxx_cross
       };
 EOB
     cat > conftest.$ac_ext <<EOF
-#line 15751 "configure"
+#line 16800 "configure"
 #include "confdefs.h"
 #include "conftest.h"
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:15758: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16807: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_float_complex=ok
 else
@@ -15787,17 +16836,17 @@ EOF
 
     ac_safe=`echo "wchar.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for wchar.h""... $ac_c" 1>&6
-echo "configure:15791: checking for wchar.h" >&5
+echo "configure:16840: checking for wchar.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15796 "configure"
+#line 16845 "configure"
 #include "confdefs.h"
 #include <wchar.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:15801: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:16850: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -15821,17 +16870,17 @@ fi
 
   ac_safe=`echo "wctype.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for wctype.h""... $ac_c" 1>&6
-echo "configure:15825: checking for wctype.h" >&5
+echo "configure:16874: checking for wctype.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15830 "configure"
+#line 16879 "configure"
 #include "confdefs.h"
 #include <wctype.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:15835: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:16884: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -15857,16 +16906,16 @@ fi
     if test x"$ac_has_wchar_h" = xyes && test x"$ac_has_wctype_h" = xyes; then
 
         echo $ac_n "checking for mbstate_t""... $ac_c" 1>&6
-echo "configure:15861: checking for mbstate_t" >&5
+echo "configure:16910: checking for mbstate_t" >&5
     cat > conftest.$ac_ext <<EOF
-#line 15863 "configure"
+#line 16912 "configure"
 #include "confdefs.h"
 #include <wchar.h>
 int main() {
 mbstate_t teststate;
 ; return 0; }
 EOF
-if { (eval echo configure:15870: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16919: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   use_native_mbstatet=yes
 else
@@ -15885,16 +16934,16 @@ EOF
     fi
   
             echo $ac_n "checking for WCHAR_MIN and WCHAR_MAX""... $ac_c" 1>&6
-echo "configure:15889: checking for WCHAR_MIN and WCHAR_MAX" >&5
+echo "configure:16938: checking for WCHAR_MIN and WCHAR_MAX" >&5
     cat > conftest.$ac_ext <<EOF
-#line 15891 "configure"
+#line 16940 "configure"
 #include "confdefs.h"
 #include <wchar.h>
 int main() {
 int i = WCHAR_MIN; int j = WCHAR_MAX;
 ; return 0; }
 EOF
-if { (eval echo configure:15898: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16947: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   has_wchar_minmax=yes
 else
@@ -15907,9 +16956,9 @@ rm -f conftest*
     echo "$ac_t""$has_wchar_minmax" 1>&6
   
             echo $ac_n "checking for WEOF""... $ac_c" 1>&6
-echo "configure:15911: checking for WEOF" >&5
+echo "configure:16960: checking for WEOF" >&5
     cat > conftest.$ac_ext <<EOF
-#line 15913 "configure"
+#line 16962 "configure"
 #include "confdefs.h"
 
       #include <wchar.h>
@@ -15918,7 +16967,7 @@ int main() {
 wint_t i = WEOF;
 ; return 0; }
 EOF
-if { (eval echo configure:15922: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16971: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   has_weof=yes
 else
@@ -15933,12 +16982,12 @@ rm -f conftest*
         for ac_func in wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15937: checking for $ac_func" >&5
+echo "configure:16986: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15942 "configure"
+#line 16991 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15961,7 +17010,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15965: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:17014: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15988,7 +17037,7 @@ done
 
 
     echo $ac_n "checking for ISO C9X wchar_t support""... $ac_c" 1>&6
-echo "configure:15992: checking for ISO C9X wchar_t support" >&5
+echo "configure:17041: checking for ISO C9X wchar_t support" >&5
     if test x"$has_weof" = xyes && test x"$has_wchar_minmax" = xyes && test x"$ac_wfuncs" = xyes; then
       ac_isoC9X_wchar_t=yes
     else
@@ -15998,17 +17047,17 @@ echo "configure:15992: checking for ISO C9X wchar_t support" >&5
 
             ac_safe=`echo "iconv.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for iconv.h""... $ac_c" 1>&6
-echo "configure:16002: checking for iconv.h" >&5
+echo "configure:17051: checking for iconv.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 16007 "configure"
+#line 17056 "configure"
 #include "confdefs.h"
 #include <iconv.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:16012: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:17061: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -16033,12 +17082,12 @@ fi
     for ac_func in iconv_open iconv_close iconv
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:16037: checking for $ac_func" >&5
+echo "configure:17086: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 16042 "configure"
+#line 17091 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -16061,7 +17110,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:16065: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:17114: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -16088,7 +17137,7 @@ done
 
 
     echo $ac_n "checking for XPG2 wchar_t support""... $ac_c" 1>&6
-echo "configure:16092: checking for XPG2 wchar_t support" >&5
+echo "configure:17141: checking for XPG2 wchar_t support" >&5
     if test x"$ac_has_iconv_h" = xyes && test x"$ac_XPG2funcs" = xyes; then
       ac_XPG2_wchar_t=yes
     else
@@ -16099,7 +17148,7 @@ echo "configure:16092: checking for XPG2 wchar_t support" >&5
             #    ac_isoC9X_wchar_t=no
     
     echo $ac_n "checking for enabled wchar_t specializations""... $ac_c" 1>&6
-echo "configure:16103: checking for enabled wchar_t specializations" >&5
+echo "configure:17152: checking for enabled wchar_t specializations" >&5
     if test x"$ac_isoC9X_wchar_t" = xyes && test x"$ac_XPG2_wchar_t" = xyes; then
       libinst_wstring_la="libinst-wstring.la"
       cat >> confdefs.h <<\EOF
@@ -16124,17 +17173,17 @@ EOF
   
   ac_safe=`echo "ctype.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for ctype.h""... $ac_c" 1>&6
-echo "configure:16128: checking for ctype.h" >&5
+echo "configure:17177: checking for ctype.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 16133 "configure"
+#line 17182 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:16138: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:17187: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -16155,9 +17204,9 @@ if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
         ctype_default=yes
 
         echo $ac_n "checking <ctype> for gnu-linux ""... $ac_c" 1>&6
-echo "configure:16159: checking <ctype> for gnu-linux " >&5
+echo "configure:17208: checking <ctype> for gnu-linux " >&5
     cat > conftest.$ac_ext <<EOF
-#line 16161 "configure"
+#line 17210 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 int main() {
@@ -16168,7 +17217,7 @@ int
 	+ __ctype_tolower[a] + __ctype_toupper[a] + __ctype_b[a];}
 ; return 0; }
 EOF
-if { (eval echo configure:16172: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17221: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   \
     ctype_linux=yes
@@ -16187,9 +17236,9 @@ rm -f conftest*
 
         if test $ctype_default = "yes"; then
     echo $ac_n "checking <ctype> for freebsd 4.0 ""... $ac_c" 1>&6
-echo "configure:16191: checking <ctype> for freebsd 4.0 " >&5
+echo "configure:17240: checking <ctype> for freebsd 4.0 " >&5
     cat > conftest.$ac_ext <<EOF
-#line 16193 "configure"
+#line 17242 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 int main() {
@@ -16199,7 +17248,7 @@ int
 	+ _CTYPE_D + _CTYPE_P + _CTYPE_X + _CTYPE_G ;}
 ; return 0; }
 EOF
-if { (eval echo configure:16203: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17252: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   \
     ctype_bsd=yes
@@ -16219,9 +17268,9 @@ rm -f conftest*
 
         if test $ctype_default = "yes"; then
     echo $ac_n "checking <ctype> for freebsd 3.4 ""... $ac_c" 1>&6
-echo "configure:16223: checking <ctype> for freebsd 3.4 " >&5
+echo "configure:17272: checking <ctype> for freebsd 3.4 " >&5
     cat > conftest.$ac_ext <<EOF
-#line 16225 "configure"
+#line 17274 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 int main() {
@@ -16231,7 +17280,7 @@ int
       + _D + _P + _X + _G + __istype (a, 0);}
 ; return 0; }
 EOF
-if { (eval echo configure:16235: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17284: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   \
     ctype_freebsd34=yes
@@ -16251,9 +17300,9 @@ rm -f conftest*
 
         if test $ctype_default = "yes"; then
     echo $ac_n "checking <ctype> for solaris 2.6,7,8 ""... $ac_c" 1>&6
-echo "configure:16255: checking <ctype> for solaris 2.6,7,8 " >&5
+echo "configure:17304: checking <ctype> for solaris 2.6,7,8 " >&5
     cat > conftest.$ac_ext <<EOF
-#line 16257 "configure"
+#line 17306 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 int main() {
@@ -16264,7 +17313,7 @@ int
 	+ __trans_lower[a] + __trans_upper[a] + __ctype_mask[a];}
 ; return 0; }
 EOF
-if { (eval echo configure:16268: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17317: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   \
     ctype_solaris=yes
@@ -16279,7 +17328,7 @@ rm -f conftest*
 
     if test $ctype_solaris = "yes"; then
       echo $ac_n "checking   for version""... $ac_c" 1>&6
-echo "configure:16283: checking   for version" >&5
+echo "configure:17332: checking   for version" >&5
       ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -16288,14 +17337,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
  
       cat > conftest.$ac_ext <<EOF
-#line 16292 "configure"
+#line 17341 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 int main() {
 typedef long* __to_type; __to_type const& _M_toupper = __trans_upper;
 ; return 0; }
 EOF
-if { (eval echo configure:16299: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17348: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   \
       ctype_solaris26=yes
@@ -16327,9 +17376,9 @@ cross_compiling=$ac_cv_prog_cc_cross
 
         if test $ctype_default = "yes"; then
     echo $ac_n "checking <ctype> for solaris 2.5.1 ""... $ac_c" 1>&6
-echo "configure:16331: checking <ctype> for solaris 2.5.1 " >&5
+echo "configure:17380: checking <ctype> for solaris 2.5.1 " >&5
     cat > conftest.$ac_ext <<EOF
-#line 16333 "configure"
+#line 17382 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 int main() {
@@ -16339,7 +17388,7 @@ int
 	+ __ctype[a];}
 ; return 0; }
 EOF
-if { (eval echo configure:16343: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17392: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   \
     ctype_solaris25=yes
@@ -16359,9 +17408,9 @@ rm -f conftest*
 
         if test $ctype_default = "yes"; then
     echo $ac_n "checking <ctype> for aix ""... $ac_c" 1>&6
-echo "configure:16363: checking <ctype> for aix " >&5
+echo "configure:17412: checking <ctype> for aix " >&5
     cat > conftest.$ac_ext <<EOF
-#line 16365 "configure"
+#line 17414 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 int main() {
@@ -16372,7 +17421,7 @@ int
 	+ _VALC('a') + _IS('c', 0);}
 ; return 0; }
 EOF
-if { (eval echo configure:16376: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17425: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   \
     ctype_aix=yes
@@ -16392,9 +17441,9 @@ rm -f conftest*
 
         if test $ctype_default = "yes"; then
     echo $ac_n "checking <ctype> for newlib ""... $ac_c" 1>&6
-echo "configure:16396: checking <ctype> for newlib " >&5
+echo "configure:17445: checking <ctype> for newlib " >&5
     cat > conftest.$ac_ext <<EOF
-#line 16398 "configure"
+#line 17447 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 int main() {
@@ -16404,7 +17453,7 @@ int
 	+ _ctype_[a];}
 ; return 0; }
 EOF
-if { (eval echo configure:16408: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17457: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   \
     ctype_newlib=yes
@@ -16438,17 +17487,17 @@ fi
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:16442: checking for $ac_hdr" >&5
+echo "configure:17491: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 16447 "configure"
+#line 17496 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:16452: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:17501: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -16477,12 +17526,12 @@ done
 for ac_func in getpagesize
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:16481: checking for $ac_func" >&5
+echo "configure:17530: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 16486 "configure"
+#line 17535 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -16505,7 +17554,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:16509: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:17558: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -16530,7 +17579,7 @@ fi
 done
 
 echo $ac_n "checking for working mmap""... $ac_c" 1>&6
-echo "configure:16534: checking for working mmap" >&5
+echo "configure:17583: checking for working mmap" >&5
 if eval "test \"`echo '$''{'ac_cv_func_mmap_fixed_mapped'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -16538,7 +17587,7 @@ else
   ac_cv_func_mmap_fixed_mapped=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 16542 "configure"
+#line 17591 "configure"
 #include "confdefs.h"
 
 /* Thanks to Mike Haertel and Jim Avera for this test.
@@ -16678,7 +17727,7 @@ main()
 }
 
 EOF
-if { (eval echo configure:16682: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:17731: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_func_mmap_fixed_mapped=yes
 else
@@ -16741,19 +17790,19 @@ fi
 
 if test $ac_cv_header_locale_h = yes; then
     echo $ac_n "checking for LC_MESSAGES""... $ac_c" 1>&6
-echo "configure:16745: checking for LC_MESSAGES" >&5
+echo "configure:17794: checking for LC_MESSAGES" >&5
 if eval "test \"`echo '$''{'ac_cv_val_LC_MESSAGES'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 16750 "configure"
+#line 17799 "configure"
 #include "confdefs.h"
 #include <locale.h>
 int main() {
 return LC_MESSAGES
 ; return 0; }
 EOF
-if { (eval echo configure:16757: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:17806: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_cv_val_LC_MESSAGES=yes
 else
@@ -16988,6 +18037,7 @@ s%@WERROR@%$WERROR%g
 s%@WFMT_FLAGS@%$WFMT_FLAGS%g
 s%@SECTION_FLAGS@%$SECTION_FLAGS%g
 s%@SECTION_LDFLAGS@%$SECTION_LDFLAGS%g
+s%@OPT_LDFLAGS@%$OPT_LDFLAGS%g
 s%@LIBMATHOBJS@%$LIBMATHOBJS%g
 s%@USE_COMPLEX_LONG_DOUBLE@%$USE_COMPLEX_LONG_DOUBLE%g
 s%@libinst_wstring_la@%$libinst_wstring_la%g
@@ -17317,7 +18367,7 @@ if test ! -f stamp-sanity-warned; then
   echo "  faster => ${srcdir}/docs/configopts.html"
   echo "  slower => <URL:http://sources.redhat.com/libstdc++/configopts.html>"
   echo ""
-  echo "before proceeding with make."
+  echo "before proceeding with ${_cv_gnu_make_command}."
   echo ""
 fi
 
diff --git a/libstdc++-v3/configure.in b/libstdc++-v3/configure.in
index 2e71c76bf31..d38f266bbbe 100644
--- a/libstdc++-v3/configure.in
+++ b/libstdc++-v3/configure.in
@@ -200,7 +200,7 @@ if test ! -f stamp-sanity-warned; then
   echo "  faster => ${srcdir}/docs/configopts.html"
   echo "  slower => <URL:http://sources.redhat.com/libstdc++/configopts.html>"
   echo ""
-  echo "before proceeding with make."
+  echo "before proceeding with ${_cv_gnu_make_command}."
   echo ""
 fi
 
diff --git a/libstdc++-v3/docs/install.html b/libstdc++-v3/docs/install.html
index c6854e7a2ce..e39586103b8 100644
--- a/libstdc++-v3/docs/install.html
+++ b/libstdc++-v3/docs/install.html
@@ -9,7 +9,7 @@
    <TITLE>libstdc++-v3 Installation Instructions</TITLE>
 <LINK REL="home" HREF="http://sources.redhat.com/libstdc++/">
 <LINK REL=StyleSheet HREF="lib3styles.css">
-<!-- $Id: install.html,v 1.4 2000/06/27 15:56:17 pme Exp $ -->
+<!-- $Id: install.html,v 1.5 2000/07/11 21:45:07 pme Exp $ -->
 </HEAD>
 <BODY>
 
@@ -268,6 +268,15 @@
       message when compiling stringMAIN.cc, see <A HREF="#Werror">the
       resolution at the end of this document</A>.
    </P>
+   <P>If you are rebuilding from a previous build [attempt], some
+      information is kept in a cache file.  This is stored in
+      <EM>gccbuilddir/cpu-vendor-OS/</EM> if you are building with
+      multilibs (the default), or in
+      <EM>gccbuilddir/cpu-vendor-OS/</EM>libstdc++-v3 if you have
+      multilibs disabled.  The filename is config.cache; if previous
+      information is causing problems, you can delete it entirely, or
+      simply edit it and remove lines.
+   </P>
    <P>You're done.  Now install the rebuilt pieces with
       <PRE>
    make install</PRE>
@@ -383,7 +392,7 @@
 Comments and suggestions are welcome, and may be sent to
 <A HREF="mailto:pme@sources.redhat.com">Phil Edwards</A> or
 <A HREF="mailto:gdr@egcs.cygnus.com">Gabriel Dos Reis</A>.
-<BR> $Id: install.html,v 1.4 2000/06/27 15:56:17 pme Exp $
+<BR> $Id: install.html,v 1.5 2000/07/11 21:45:07 pme Exp $
 </EM></P>
 
 
diff --git a/libstdc++-v3/libio/Makefile.in b/libstdc++-v3/libio/Makefile.in
index eb396ca0716..20f69d5bdac 100644
--- a/libstdc++-v3/libio/Makefile.in
+++ b/libstdc++-v3/libio/Makefile.in
@@ -85,6 +85,7 @@ LN_S = @LN_S@
 MAINT = @MAINT@
 MAKEINFO = @MAKEINFO@
 OBJDUMP = @OBJDUMP@
+OPT_LDFLAGS = @OPT_LDFLAGS@
 PACKAGE = @PACKAGE@
 RANLIB = @RANLIB@
 SECTION_FLAGS = @SECTION_FLAGS@
diff --git a/libstdc++-v3/math/Makefile.in b/libstdc++-v3/math/Makefile.in
index eaf96f4672b..3498fb3a3d2 100644
--- a/libstdc++-v3/math/Makefile.in
+++ b/libstdc++-v3/math/Makefile.in
@@ -85,6 +85,7 @@ LN_S = @LN_S@
 MAINT = @MAINT@
 MAKEINFO = @MAKEINFO@
 OBJDUMP = @OBJDUMP@
+OPT_LDFLAGS = @OPT_LDFLAGS@
 PACKAGE = @PACKAGE@
 RANLIB = @RANLIB@
 SECTION_FLAGS = @SECTION_FLAGS@
diff --git a/libstdc++-v3/src/Makefile.am b/libstdc++-v3/src/Makefile.am
index 0c752e41f0b..067cfec7969 100644
--- a/libstdc++-v3/src/Makefile.am
+++ b/libstdc++-v3/src/Makefile.am
@@ -21,6 +21,8 @@
 ## Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
 ## USA.
 
+## $Id$
+
 AUTOMAKE_OPTIONS = 1.3 gnits
 MAINT_CHARSET = latin1
 
@@ -98,7 +100,7 @@ LTCXXCOMPILE = $(LIBTOOL) --mode=compile $(CXX) $(DEFS) $(INCLUDES) \
 # rules automake generates would be used.  We cannot allow CXX to be used
 # in libtool since this would add -lstdc++ to the link line which of
 # course is impossible.
-CXXLINK = $(LIBTOOL) --mode=link "$(CC)" -Wl,-O1 @SECTION_LDFLAGS@ $(AM_CXXFLAGS) $(LDFLAGS) -o $@
+CXXLINK = $(LIBTOOL) --mode=link "$(CC)" @OPT_LDFLAGS@ @SECTION_LDFLAGS@ $(AM_CXXFLAGS) $(LDFLAGS) -o $@
 
 
 headers = \
diff --git a/libstdc++-v3/src/Makefile.in b/libstdc++-v3/src/Makefile.in
index ac851820d9b..361409218ea 100644
--- a/libstdc++-v3/src/Makefile.in
+++ b/libstdc++-v3/src/Makefile.in
@@ -84,6 +84,7 @@ LN_S = @LN_S@
 MAINT = @MAINT@
 MAKEINFO = @MAKEINFO@
 OBJDUMP = @OBJDUMP@
+OPT_LDFLAGS = @OPT_LDFLAGS@
 PACKAGE = @PACKAGE@
 RANLIB = @RANLIB@
 SECTION_FLAGS = @SECTION_FLAGS@
@@ -169,7 +170,7 @@ LTCXXCOMPILE = $(LIBTOOL) --mode=compile $(CXX) $(DEFS) $(INCLUDES) \
 # rules automake generates would be used.  We cannot allow CXX to be used
 # in libtool since this would add -lstdc++ to the link line which of
 # course is impossible.
-CXXLINK = $(LIBTOOL) --mode=link "$(CC)" -Wl,-O1 @SECTION_LDFLAGS@ $(AM_CXXFLAGS) $(LDFLAGS) -o $@
+CXXLINK = $(LIBTOOL) --mode=link "$(CC)" @OPT_LDFLAGS@ @SECTION_LDFLAGS@ $(AM_CXXFLAGS) $(LDFLAGS) -o $@
 
 headers = \
 	bits/cpp_type_traits.h \