configure.ac (--with-host-libstdcxx): New option.

* configure.ac (--with-host-libstdcxx): New option.
	* configure: Regenerate.

gcc/doc:
	* doc/install.texi (--with-host-libstdcxx): Document.

From-SVN: r144881

ChangeLog

@@ -1,3 +1,8 @@
+2009-03-16  Joseph Myers  <joseph@codesourcery.com>
+
+	* configure.ac (--with-host-libstdcxx): New option.
+	* configure: Regenerate.
+
 2009-03-12  Joern Rennecke <joern.rennecke@arc.com>
 
 	* MAINTAINERS:  Move myself into the write after approval list.

configure

@@ -969,6 +969,8 @@ Optional Packages:
                           plus --with-gmp-lib=PATH/lib
   --with-gmp-include=PATH specify directory for installed GMP include files
   --with-gmp-lib=PATH     specify directory for the installed GMP library
+  --with-host-libstdcxx=L Use linker arguments L to link with libstdc++
+                          when linking with PPL
   --with-ppl=PATH         Specify prefix directory for the installed PPL package
                           Equivalent to --with-ppl-include=PATH/include
                           plus --with-ppl-lib=PATH/lib
@@ -4808,11 +4810,26 @@ fi
 
 
 
+# Allow host libstdc++ to be specified for static linking with PPL.
+
+# Check whether --with-host-libstdcxx or --without-host-libstdcxx was given.
+if test "${with_host_libstdcxx+set}" = set; then
+  withval="$with_host_libstdcxx"
+
+fi;
+
+case $with_host_libstdcxx in
+  no|yes)
+    { { echo "$as_me:$LINENO: error: -with-host-libstdcxx needs an argument" >&5
+echo "$as_me: error: -with-host-libstdcxx needs an argument" >&2;}
+   { (exit 1); exit 1; }; }
+    ;;
+esac
 
 # Check for PPL
 ppl_major_version=0
 ppl_minor_version=10
-ppllibs=" -lppl_c -lppl -lgmpxx "
+ppllibs=" -lppl_c -lppl -lgmpxx $with_host_libstdcxx "
 pplinc=
 
 
@@ -4839,7 +4856,7 @@ case $with_ppl in
     ppllibs=
     ;;
   *)
-    ppllibs="-L$with_ppl/lib -lppl_c -lppl -lgmpxx"
+    ppllibs="-L$with_ppl/lib -lppl_c -lppl -lgmpxx $with_host_libstdcxx"
     pplinc="-I$with_ppl/include $pplinc"
     LIBS="$ppllibs $LIBS"
     ;;
@@ -4848,11 +4865,11 @@ if test "x$with_ppl_include" != x; then
   pplinc="-I$with_ppl_include $pplinc"
 fi
 if test "x$with_ppl_lib" != x; then
-  ppllibs="-L$with_ppl_lib -lppl_c -lppl -lgmpxx"
+  ppllibs="-L$with_ppl_lib -lppl_c -lppl -lgmpxx $with_host_libstdcxx"
   LIBS="$ppllibs $LIBS"
 fi
 if test "x$with_ppl$with_ppl_include$with_ppl_lib" = x && test -d ${srcdir}/ppl; then
-  ppllibs='-L$$r/$(HOST_SUBDIR)/ppl/.libs -L$$r/$(HOST_SUBDIR)/ppl/_libs -lppl_c -lppl -lgmpxx '
+  ppllibs='-L$$r/$(HOST_SUBDIR)/ppl/.libs -L$$r/$(HOST_SUBDIR)/ppl/_libs -lppl_c -lppl -lgmpxx '"$with_host_libstdcxx "
   pplinc='-I$$r/$(HOST_SUBDIR)/ppl/include -I$$s/ppl/include '
   LIBS="$ppllibs $LIBS"
 fi

configure.ac

@@ -1315,11 +1315,20 @@ fi
 AC_SUBST(gmplibs)
 AC_SUBST(gmpinc)
 
+# Allow host libstdc++ to be specified for static linking with PPL.
+AC_ARG_WITH(host-libstdcxx, [  --with-host-libstdcxx=L Use linker arguments L to link with libstdc++
+                          when linking with PPL])
+
+case $with_host_libstdcxx in
+  no|yes)
+    AC_MSG_ERROR([-with-host-libstdcxx needs an argument])
+    ;;
+esac
 
 # Check for PPL
 ppl_major_version=0
 ppl_minor_version=10
-ppllibs=" -lppl_c -lppl -lgmpxx "
+ppllibs=" -lppl_c -lppl -lgmpxx $with_host_libstdcxx "
 pplinc=
 
 AC_ARG_WITH(ppl, [  --with-ppl=PATH         Specify prefix directory for the installed PPL package
@@ -1333,7 +1342,7 @@ case $with_ppl in
     ppllibs=
     ;;
   *)
-    ppllibs="-L$with_ppl/lib -lppl_c -lppl -lgmpxx"
+    ppllibs="-L$with_ppl/lib -lppl_c -lppl -lgmpxx $with_host_libstdcxx"
     pplinc="-I$with_ppl/include $pplinc"
     LIBS="$ppllibs $LIBS"
     ;;
@@ -1342,11 +1351,11 @@ if test "x$with_ppl_include" != x; then
   pplinc="-I$with_ppl_include $pplinc"
 fi
 if test "x$with_ppl_lib" != x; then
-  ppllibs="-L$with_ppl_lib -lppl_c -lppl -lgmpxx"
+  ppllibs="-L$with_ppl_lib -lppl_c -lppl -lgmpxx $with_host_libstdcxx"
   LIBS="$ppllibs $LIBS"
 fi
 if test "x$with_ppl$with_ppl_include$with_ppl_lib" = x && test -d ${srcdir}/ppl; then
-  ppllibs='-L$$r/$(HOST_SUBDIR)/ppl/.libs -L$$r/$(HOST_SUBDIR)/ppl/_libs -lppl_c -lppl -lgmpxx '
+  ppllibs='-L$$r/$(HOST_SUBDIR)/ppl/.libs -L$$r/$(HOST_SUBDIR)/ppl/_libs -lppl_c -lppl -lgmpxx '"$with_host_libstdcxx "
   pplinc='-I$$r/$(HOST_SUBDIR)/ppl/include -I$$s/ppl/include '
   LIBS="$ppllibs $LIBS"
 fi

gcc/ChangeLog

@@ -1,3 +1,7 @@
+2009-03-16  Joseph Myers  <joseph@codesourcery.com>
+
+	* doc/install.texi (--with-host-libstdcxx): Document.
+
 2009-03-14  Anatoly Sokolov  <aesok@post.ru>
 
 	PR target/34299

gcc/doc/install.texi

@@ -1476,6 +1476,15 @@ you can explicitly specify the directory where they are installed
 shorthand assumptions are not correct, you can use the explicit
 include and lib options directly.
 
+@item --with-host-libstdcxx=@var{linker-args}
+If you are linking with a static copy of PPL, you can use this option
+to specify how the linker should find the standard C++ library used
+internally by PPL.  Typical values of @var{linker-args} might be
+@samp{-lstdc++} or @samp{-Wl,-Bstatic,-lstdc++,-Bdynamic -lm}.  If you are
+linking with a shared copy of PPL, you probably do not need this
+option; shared library dependencies will cause the linker to search
+for the standard C++ library automatically.
+
 @item --with-debug-prefix-map=@var{map}
 Convert source directory names using @option{-fdebug-prefix-map} when
 building runtime libraries.  @samp{@var{map}} is a space-separated