Update.

1997-11-18 02:31 Ulrich Drepper <drepper@cygnus.com> * iconv/Makefile: New file. * iconv/gconv.c: New file. * iconv/gconv.h: New file. * iconv/gconv_builtin.c: New file. * iconv/gconv_builtin.h: New file. * iconv/gconv_close.c: New file. * iconv/gconv_conf.c: New file. * iconv/gconv_db.c: New file. * iconv/gconv_dl.c: New file. * iconv/gconv_open.c: New file. * iconv/gconv_simple.c: New file. * iconv/iconv.c: New file. * iconv/iconv.h: New file. * iconv/iconv_close.c: New file. * iconv/iconv_open.c: New file. * include/gconv.h: New file. * Makeconfig: Define gconvdir. * Makefile (subdirs): Add iconv. * string/bits/string2.h: Add optimization for strtok_r. * sysdeps/generic/_G_config.h: Define __need_NULL to get definition for NULL. Reported by H.J. Lu <hjl@gnu.ai.mit.edu>. * configure.in: Correct test for bash2. * locale/Makefile (CFLAGS-charmap.c): Add -Wno-char-subscripts. (CFLAGS-locfile.c): Likewise. Suggested by Zack Weinberg <zack@rabi.phys.columbia.edu>. * misc/hsearch_r.c (hsearch_r): Avoid undefinitely search for non-existing entry if the table is full. * posix/regex.h: Pretty print. * stdio-common/printf_fp.c: Don't define NDEBUG if already defined. * sysdeps/posix/ctermid.c: Simplify a bit. * sysdeps/unix/sysv/linux/net/if.h: Pretty print. 1997-11-17 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/unix/sysv/linux/sys/quota.h: Add include for <sys/types.h> instead of <asm/types.h>. 1997-11-16 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * math/libm-test.c (asin_test): Add epsilon for asin (0.5). 1997-11-16 17:09 H.J. Lu <hjl@gnu.ai.mit.edu> * libc.map (_IO_stdin_, _IO_stdout_, _IO_stderr_, _IO_fopen, fopen, freopen, _IO_fclose, fclose): Added to GLIBC_2.0. (_IO_stdin_, _IO_stdout_, _IO_stderr_): Removed from GLIBC_2.1. (_IO_2_1_stdin_, _IO_2_1_stdout_, _IO_2_1_stderr_, _IO_fclose, fclose): Added to GLIBC_2.1. * libio/Makefile (routines, shared-only-routines): Add oldiofclose. Remove oldfreopen. * libio/freopen.c (freopen): When PIC is defined, call _IO_old_freopen () for old stdio. * libio/iofclose.c (_IO_new_fclose): Renamed from _IO_fclose. (_IO_fclose, fclose): Use _IO_new_fclose as default version for GLIBC_2.1. * libio/iolibio.h (_IO_old_freopen): Use _IO_old_file_close_it instead of _IO_file_close_it. * libio/libio.h (_IO_stdin_, _IO_stdout_, _IO_stderr_): Changed to _IO_2_1_stdxxx_. (_IO_stdin, _IO_stdout, _IO_stderr): Declare as extern if _LIBC * libio/libioP.h (_IO_old_do_flush): New. * libio/oldfileops.c (_IO_old_file_close_it, _IO_old_file_finish, _IO_old_file_overflow, _IO_old_file_sync): Call _IO_old_do_flush () instead of _IO_do_flush (). (_IO_old_file_xsputn): Call _IO_old_do_write () instead of _IO_do_write (). * libio/oldiofopen.c (_IO_old_fopen): Call _IO_old_file_init () instead of _IO_file_init (). Bind old symbols to version GLIBC_2.0. * libio/oldstdfiles.c (DEF_STDFILE): Don't use symbol_version. (_IO_old_stdin_, _IO_old_stdout_, _IO_old_stderr_): Changed to _IO_stdxxx_. (_IO_check_libio): New function in .init. * libio/oldiofclose.c: New file. * libio/stdfiles.c (_IO_new_stdin_, _IO_new_stdout_, _IO_new_stderr_): Changed to _IO_2_1_stdxxx_. (DEF_STDFILE): Don't use default_symbol_version. * libio/stdio.c (stdin, stdout, stderr): Set to _IO_2_1_stdxxx_._ (_IO_stdin, _IO_stdout, _IO_stderr): New, strong alias of stdxxx. * csu/Makefile (distribute): Add init.c. (extra-objs): Add init.o for ELF. (start-installed-name): Add $(objpfx)init.o. * csu/init.c: New file. 1997-11-12 08:02 H.J. Lu <hjl@gnu.ai.mit.edu> * elf/dl-lookup.c (do_lookup): Don't use the hidden base definition as the default. 1997-08-27 Klaus Espenlaub <kespenla@hydra.informatik.uni-ulm.de> * erand48_r.c (__erand48_r): Implement for 32 bit short int. 1997-11-15 Andreas Jaeger <aj@arthur.rhein-neckar.de> * elf/genrtldtbl.awk: Replace gensub for compatibility with gawk2 (PR 351). 1997-11-16 21:01 Philip Blundell <Philip.Blundell@pobox.com> * sysdeps/arm/sysdep.h: Use __APCS_32__ to decide whether or not to preserve condition codes on function call. 1997-11-13 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/generic/s_exp2l.c: Change exp2l to __ieee754_exp2l. 1997-11-14 Andreas Jaeger <aj@arthur.rhein-neckar.de> * math/libm-test.c (asin_test): Add epsilon for float. (tan_test): Add epsilon for float. (log1p_test): Add epsilon for float. (inverse_functions): Add epsilons. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers) [socket]: Add net/if_packet.h. * sysdeps/unix/sysv/linux/Dist: Add net/if_packet.h. 1997-11-10 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * md5-crypt/Makefile (extra-objs): Make recursively expanded variable, since $(object-suffixes) is not defined yet. 1997-11-11 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * db2/Makefile (distribute): db185/db185_int.src -> db185/db185_int.h. 1997-11-11 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * misc/tst-fdset.c: Don't require the value of FD_ISSET to be exactly one. 1997-11-11 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/generic/e_acoshl.c: Fix stub_warning: use the user level * sysdeps/generic/e_acosl.c: Likewise. * sysdeps/generic/e_asinl.c: Likewise. * sysdeps/generic/e_atan2l.c: Likewise. * sysdeps/generic/e_expl.c: Likewise. * sysdeps/generic/e_fmodl.c: Likewise. * sysdeps/generic/e_j0l.c: Likewise. * sysdeps/generic/e_j1l.c: Likewise. * sysdeps/generic/e_jnl.c: Likewise. * sysdeps/generic/e_lgammal_r.c: Likewise. * sysdeps/generic/e_log10l.c: Likewise. * sysdeps/generic/e_logl.c: Likewise. * sysdeps/generic/e_powl.c: Likewise. * sysdeps/generic/e_sqrtl.c: Likewise. * sysdeps/generic/e_exp2l.c: Likewise. 1997-11-11 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Make-dist (+sysdep-names): Remove extra paren. * Makefile (distribute): Add stub-tag.h. * elf/Makefile (distribute): Add atomicity.h. * stdlib/Makefile (headers): Add ucontext.h and sys/ucontext.h. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers) [$(subdir)=socket]: Add net/if_packet.h. * sysdeps/alpha/Dist: Remove setjmp_aux.c. * sysdeps/unix/sysv/linux/Dist: Add s_pread64.c, s_pwrite64.c, net/if_packet.h, scsi/sg.h. 1997-11-13 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makefile (install): Quote $(CC) expansion. 1997-11-14 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/unix/sysv/linux/getcwd.c (__getcwd): Added caching of working /proc cwd and no restrictions on path length. Following some ideas from Andi Kleen <ak@muc.de> (PR 350). 1997-11-14 19:14 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * nis/nss_compat/compat-grp.c: Remove buggy assert call. 1997-11-14 22:23 Ulrich Drepper <drepper@cygnus.com> * sysdeps/libm-i387/s_fdim.S: New file. * sysdeps/libm-i387/s_fdimf.S: New file. * sysdeps/libm-i387/s_fdiml.S: New file. * sysdeps/libm-i387/i686/s_fdim.S: New file. * sysdeps/libm-i387/i686/s_fdimf.S: New file. * sysdeps/libm-i387/i686/s_fdiml.S: New file. 1997-11-12 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * string/bits/string2.h (strstr): Avoid warning if HAYSTACK is a pointer to unsigned char. 1997-11-13 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/libm-ieee754/s_llrintf.c (__llrintf): Fix function. * sysdeps/libm-ieee754/s_lrintf.c (__lrintf): Fix function. * sysdeps/libm-ieee754/s_lrint.c (__lrint): Fix function. 1997-11-12 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/libm-ieee754/s_ilogbf.c: Correct return values for ilogb(0/NaN). * sysdeps/libm-ieee754/s_ilogbl.c: Likewise. * sysdeps/libm-ieee754/s_ilogb.c: Likewise. 1997-11-14 05:44 Ulrich Drepper <drepper@cygnus.com> * sysdeps/libm-i387/s_fmin.S: New file. * sysdeps/libm-i387/s_fminf.S: New file. * sysdeps/libm-i387/s_fminl.S: New file. * sysdeps/libm-i387/s_fmax.S: New file. * sysdeps/libm-i387/s_fmaxf.S: New file. * sysdeps/libm-i387/s_fmaxl.S: New file. * sysdeps/libm-i387/i686/s_fmin.S: New file. * sysdeps/libm-i387/i686/s_fminf.S: New file. * sysdeps/libm-i387/i686/s_fminl.S: New file. * sysdeps/libm-i387/i686/s_fmax.S: New file. * sysdeps/libm-i387/i686/s_fmaxf.S: New file. * sysdeps/libm-i387/i686/s_fmaxl.S: New file. 1997-11-14 03:06 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/accept.S: Add __libc_accept as alias. * sysdeps/unix/sysv/linux/send.S: Likewise. * sysdeps/unix/sysv/linux/recv.S: Likewise. * sysdeps/unix/sysv/linux/connect.S: Likewise. Reported by Christopher Wiles <wileyc@ai.cs.fujitsu.co.jp>. See ChangeLog.7 for earlier changes.
1997-11-18 02:50:07 +00:00 · 1997-11-18 02:50:07 +00:00 · 6973fc0127
parent fe0ec73edb
commit 6973fc0127
116 changed files with 18259 additions and 14801 deletions
--- a/14792
+++ b/14792
--- a/ChangeLog.7
+++ b/ChangeLog.7
--- a/28
+++ b/28
@ -104,6 +104,11 @@ please let me know.
 [Q29]	``I don't include any kernel header myself but still the
 	  compiler complains about type redeclarations of types in the
 	  kernel headers.''
+
+[Q30]	``When I start the program XXX after upgrading the library
+	  I get
+	    XXX: Symbol `_sys_errlist' has different size in shared object, consider re-linking
+	  Why?  What to do?''

 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
 [Q1]	``What systems does the GNU C Library run on?''
@ -776,6 +781,29 @@ There might be some more problems left but 2.1.61 fixes some of the known
 ones.  See the BUGS file for other known problems.


+~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
+[Q30]	``When I start the program XXX after upgrading the library
+	  I get
+	    XXX: Symbol `_sys_errlist' has different size in shared object, consider re-linking
+	  Why?  What to do?''
+
+[A30] {UD} As the message says, relink the binary.  The problem is that
+very few symbols from the library can change in size and there is no way
+to avoid this.  _sys_errlist is a good example.  Occasionally there are
+new error numbers added to the kernel and this must be reflected at user
+level.
+
+But this does not mean all programs are doomed once such a change is
+necessary.  Such symbols should normally not be used at all.  There are
+mechanisms to avoid using them.  In the case of _sys_errlist, there is the
+strerror() function which should _always_ be used instead.  So the correct
+fix is to rewrite that part of the application.
+
+In some situations (especially when testing a new library release) it might
+be possible that such a symbol size change slipped in though it must not
+happen.  So in case of doubt report such a warning message as a problem.
+
+
 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

 Answers were given by:
--- a/2
+++ b/2
@ -96,7 +96,7 @@ foo:=$(shell echo 'try-sysdeps=$(try-sysdeps)'>&2)
 foo:=$(shell echo 'generic +sysdeps=$(+sysdeps)'>&2)
 +sysdep-names := $(sort $(patsubst $(..)sysdeps/generic/%,%,\
 				   $(patsubst $(..)sysdeps/libm-ieee754/%,%,\
-					      $(+sysdeps)))))
+					      $(+sysdeps))))
 foo:=$(shell echo '+sysdep-names=$(+sysdep-names)' >&2)

 ifdef subdir-dirs
--- a/6
+++ b/6
@ -217,6 +217,12 @@ i18ndir = $(datadir)/i18n
 endif
 inst_i18ndir = $(install_root)$(i18ndir)

+# Where to install the shared object for charset transformation.
+ifndef gconvdir
+gconvdir = $(libdir)/gconv
+endif
+inst_gconvdir = $(install_root)$(gconvdir)
+

 # Where to install programs.
 ifndef bindir
--- a/9
+++ b/9
@ -53,7 +53,7 @@ endif
 # These are the subdirectories containing the library source.
 subdirs = csu assert ctype db2 locale intl catgets math setjmp signal stdlib \
 	  stdio-common $(stdio) malloc string wcsmbs time dirent grp pwd \
-	  posix io termios resource misc socket sysvipc gmon gnulib \
+	  posix io termios resource misc socket sysvipc gmon gnulib iconv \
 	  wctype manual shadow md5-crypt po argp $(add-ons) nss \
 	  $(sysdep-subdirs) $(binfmt-subdir)
 export subdirs := $(subdirs)	# Benign, useless in GNU make before 3.63.
@ -117,7 +117,7 @@ include Makerules
 # Install from subdirectories too.
 install: subdir_install

-# Create linkfs for shared libraries using the `ldconfig' program is possible.
+# Create links for shared libraries using the `ldconfig' program is possible.
 # Ignore the error if we cannot update /etc/ld.so.cache.
 ifeq (no,$(cross-compiling))
 ifeq (yes,$(build-shared))
@ -127,7 +127,7 @@ install:
 ifneq (no,$(PERL))
 ifeq (/usr,$(prefix))
 ifeq (,$(install_root))
-	CC=$(CC) $(PERL) test-installation.pl $(common-objpfx)
+	CC="$(CC)" $(PERL) test-installation.pl $(common-objpfx)
 endif
 endif
 endif
@ -312,7 +312,8 @@ distribute  := README INSTALL FAQ NOTES NEWS PROJECTS BUGS		\
 	       config.h.in config.make.in config-name.in Makefile.in	\
 	       autolock.sh rellns-sh munch-tmpl.c munch.awk interp.c	\
 	       sysdep.h set-hooks.h libc-symbols.h version.h shlib-versions \
-	       rpm/Makefile rpm/template rpm/rpmrc glibcbug.in abi-tags
+	       rpm/Makefile rpm/template rpm/rpmrc glibcbug.in abi-tags	\
+	       stub-tag.h

 distribute := $(strip $(distribute))
 generated := $(generated) stubs.h version-info.h
--- a/83
+++ b/83
@ -1636,7 +1636,8 @@ else
 fi

 if test "$BASH" != no &&
-   $BASH -c 'test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then
+   $BASH -c 'test "$BASH_VERSINFO"
+	     && test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then
  libc_cv_have_bash2=yes
 else
  libc_cv_have_bash2=no
@ -1647,7 +1648,7 @@ if test "$BASH" = no; then
  # Extract the first word of "ksh", so it can be a program name with args.
 set dummy ksh; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1651: checking for $ac_word" >&5
+echo "configure:1652: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_KSH'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -1693,7 +1694,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1697: checking for $ac_word" >&5
+echo "configure:1698: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_PERL'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -1728,7 +1729,7 @@ test -n "$PERL" || PERL="no"


 echo $ac_n "checking for signed size_t type""... $ac_c" 1>&6
-echo "configure:1732: checking for signed size_t type" >&5
+echo "configure:1733: checking for signed size_t type" >&5
 if eval "test \"`echo '$''{'libc_cv_signed_size_t'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -1752,12 +1753,12 @@ EOF
 fi

 echo $ac_n "checking for libc-friendly stddef.h""... $ac_c" 1>&6
-echo "configure:1756: checking for libc-friendly stddef.h" >&5
+echo "configure:1757: checking for libc-friendly stddef.h" >&5
 if eval "test \"`echo '$''{'libc_cv_friendly_stddef'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
  cat > conftest.$ac_ext <<EOF
-#line 1761 "configure"
+#line 1762 "configure"
 #include "confdefs.h"
 #define __need_size_t
 #define __need_wchar_t
@ -1772,7 +1773,7 @@ size_t size; wchar_t wchar;
 if (&size == NULL || &wchar == NULL) abort ();
 ; return 0; }
 EOF
-if { (eval echo configure:1776: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1777: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  libc_cv_friendly_stddef=yes
 else
@ -1791,7 +1792,7 @@ override stddef.h = # The installed <stddef.h> seems to be libc-friendly."
 fi

 echo $ac_n "checking whether we need to use -P to assemble .S files""... $ac_c" 1>&6
-echo "configure:1795: checking whether we need to use -P to assemble .S files" >&5
+echo "configure:1796: checking whether we need to use -P to assemble .S files" >&5
 if eval "test \"`echo '$''{'libc_cv_need_minus_P'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -1822,7 +1823,7 @@ if test $ac_cv_prog_gcc = yes; then
  # We must check this even if -pipe is not given here, because the user
  # might do `make CFLAGS=-pipe'.
  echo $ac_n "checking for gcc 2.7.x -pipe bug""... $ac_c" 1>&6
-echo "configure:1826: checking for gcc 2.7.x -pipe bug" >&5
+echo "configure:1827: checking for gcc 2.7.x -pipe bug" >&5
 if eval "test \"`echo '$''{'libc_cv_gcc_pipe_bug'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -1851,7 +1852,7 @@ else
 fi

 echo $ac_n "checking for assembler global-symbol directive""... $ac_c" 1>&6
-echo "configure:1855: checking for assembler global-symbol directive" >&5
+echo "configure:1856: checking for assembler global-symbol directive" >&5
 if eval "test \"`echo '$''{'libc_cv_asm_global_directive'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -1881,7 +1882,7 @@ EOF
 fi

 echo $ac_n "checking for .set assembler directive""... $ac_c" 1>&6
-echo "configure:1885: checking for .set assembler directive" >&5
+echo "configure:1886: checking for .set assembler directive" >&5
 if eval "test \"`echo '$''{'libc_cv_asm_set_directive'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -1915,7 +1916,7 @@ EOF
 fi

 echo $ac_n "checking for .symver assembler directive""... $ac_c" 1>&6
-echo "configure:1919: checking for .symver assembler directive" >&5
+echo "configure:1920: checking for .symver assembler directive" >&5
 if eval "test \"`echo '$''{'libc_cv_asm_symver_directive'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -1934,7 +1935,7 @@ fi

 echo "$ac_t""$libc_cv_asm_symver_directive" 1>&6
 echo $ac_n "checking for ld --version-script""... $ac_c" 1>&6
-echo "configure:1938: checking for ld --version-script" >&5
+echo "configure:1939: checking for ld --version-script" >&5
 if eval "test \"`echo '$''{'libc_cv_ld_version_script_option'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -1953,7 +1954,7 @@ EOF
    if { ac_try='${CC-cc} $CFLAGS -shared -o conftest.so conftest.o
 					-nostartfiles -nostdlib
 					-Wl,--version-script,conftest.map
-		       1>&5'; { (eval echo configure:1957: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
+		       1>&5'; { (eval echo configure:1958: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
    then
      libc_cv_ld_version_script_option=yes
    else
@ -1984,7 +1985,7 @@ fi

 if test $elf = yes; then
  echo $ac_n "checking for .previous assembler directive""... $ac_c" 1>&6
-echo "configure:1988: checking for .previous assembler directive" >&5
+echo "configure:1989: checking for .previous assembler directive" >&5
 if eval "test \"`echo '$''{'libc_cv_asm_previous_directive'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -1992,7 +1993,7 @@ else
 .section foo_section
 .previous
 EOF
-  if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:1996: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+  if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:1997: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
    libc_cv_asm_previous_directive=yes
  else
    libc_cv_asm_previous_directive=no
@ -2008,7 +2009,7 @@ EOF

  else
    echo $ac_n "checking for .popsection assembler directive""... $ac_c" 1>&6
-echo "configure:2012: checking for .popsection assembler directive" >&5
+echo "configure:2013: checking for .popsection assembler directive" >&5
 if eval "test \"`echo '$''{'libc_cv_asm_popsection_directive'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -2016,7 +2017,7 @@ else
 .pushsection foo_section
 .popsection
 EOF
-    if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:2020: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+    if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:2021: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
      libc_cv_asm_popsection_directive=yes
    else
      libc_cv_asm_popsection_directive=no
@ -2036,12 +2037,12 @@ fi

 if test $elf != yes; then
  echo $ac_n "checking for .init and .fini sections""... $ac_c" 1>&6
-echo "configure:2040: checking for .init and .fini sections" >&5
+echo "configure:2041: checking for .init and .fini sections" >&5
 if eval "test \"`echo '$''{'libc_cv_have_initfini'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
  cat > conftest.$ac_ext <<EOF
-#line 2045 "configure"
+#line 2046 "configure"
 #include "confdefs.h"

 int main() {
@ -2050,7 +2051,7 @@ asm (".section .init");
 				    asm (".text");
 ; return 0; }
 EOF
-if { (eval echo configure:2054: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2055: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  libc_cv_have_initfini=yes
 else
@ -2078,19 +2079,19 @@ if test $elf = yes; then
 else
  if test $ac_cv_prog_cc_works = yes; then
    echo $ac_n "checking for _ prefix on C symbol names""... $ac_c" 1>&6
-echo "configure:2082: checking for _ prefix on C symbol names" >&5
+echo "configure:2083: checking for _ prefix on C symbol names" >&5
 if eval "test \"`echo '$''{'libc_cv_asm_underscores'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
  cat > conftest.$ac_ext <<EOF
-#line 2087 "configure"
+#line 2088 "configure"
 #include "confdefs.h"
 asm ("_glibc_foobar:");
 int main() {
 glibc_foobar ();
 ; return 0; }
 EOF
-if { (eval echo configure:2094: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2095: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
  rm -rf conftest*
  libc_cv_asm_underscores=yes
 else
@ -2105,17 +2106,17 @@ fi
 echo "$ac_t""$libc_cv_asm_underscores" 1>&6
  else
    echo $ac_n "checking for _ prefix on C symbol names""... $ac_c" 1>&6
-echo "configure:2109: checking for _ prefix on C symbol names" >&5
+echo "configure:2110: checking for _ prefix on C symbol names" >&5
 if eval "test \"`echo '$''{'libc_cv_asm_underscores'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
  cat > conftest.$ac_ext <<EOF
-#line 2114 "configure"
+#line 2115 "configure"
 #include "confdefs.h"
 void underscore_test(void) {
 return; }
 EOF
-if { (eval echo configure:2119: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2120: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  if grep _underscore_test conftest* >/dev/null; then
    rm -f conftest*
    libc_cv_asm_underscores=yes
@ -2148,7 +2149,7 @@ if test $elf = yes; then
  libc_cv_asm_weakext_directive=no
 else
  echo $ac_n "checking for assembler .weak directive""... $ac_c" 1>&6
-echo "configure:2152: checking for assembler .weak directive" >&5
+echo "configure:2153: checking for assembler .weak directive" >&5
 if eval "test \"`echo '$''{'libc_cv_asm_weak_directive'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -2171,7 +2172,7 @@ echo "$ac_t""$libc_cv_asm_weak_directive" 1>&6

 if test $libc_cv_asm_weak_directive = no; then
  echo $ac_n "checking for assembler .weakext directive""... $ac_c" 1>&6
-echo "configure:2175: checking for assembler .weakext directive" >&5
+echo "configure:2176: checking for assembler .weakext directive" >&5
 if eval "test \"`echo '$''{'libc_cv_asm_weakext_directive'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -2208,7 +2209,7 @@ EOF
 fi

 echo $ac_n "checking for ld --no-whole-archive""... $ac_c" 1>&6
-echo "configure:2212: checking for ld --no-whole-archive" >&5
+echo "configure:2213: checking for ld --no-whole-archive" >&5
 if eval "test \"`echo '$''{'libc_cv_ld_no_whole_archive'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -2219,7 +2220,7 @@ __throw () {}
 EOF
 if { ac_try='${CC-cc} $CFLAGS
 			    -nostdlib -nostartfiles -Wl,--no-whole-archive
-			    -o conftest conftest.c 1>&5'; { (eval echo configure:2223: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+			    -o conftest conftest.c 1>&5'; { (eval echo configure:2224: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
  libc_cv_ld_no_whole_archive=yes
 else
  libc_cv_ld_no_whole_archive=no
@ -2230,7 +2231,7 @@ fi
 echo "$ac_t""$libc_cv_ld_no_whole_archive" 1>&6

 echo $ac_n "checking for gcc -fno-exceptions""... $ac_c" 1>&6
-echo "configure:2234: checking for gcc -fno-exceptions" >&5
+echo "configure:2235: checking for gcc -fno-exceptions" >&5
 if eval "test \"`echo '$''{'libc_cv_gcc_no_exceptions'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -2241,7 +2242,7 @@ __throw () {}
 EOF
 if { ac_try='${CC-cc} $CFLAGS
 			    -nostdlib -nostartfiles -fno-exceptions
-			    -o conftest conftest.c 1>&5'; { (eval echo configure:2245: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+			    -o conftest conftest.c 1>&5'; { (eval echo configure:2246: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
  libc_cv_gcc_no_exceptions=yes
 else
  libc_cv_gcc_no_exceptions=no
@ -2252,12 +2253,12 @@ fi
 echo "$ac_t""$libc_cv_gcc_no_exceptions" 1>&6

 echo $ac_n "checking for DWARF2 unwind info support""... $ac_c" 1>&6
-echo "configure:2256: checking for DWARF2 unwind info support" >&5
+echo "configure:2257: checking for DWARF2 unwind info support" >&5
 if eval "test \"`echo '$''{'libc_cv_gcc_dwarf2_unwind_info'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
  cat > conftest.c <<EOF
-#line 2261 "configure"
+#line 2262 "configure"
 static char __EH_FRAME_BEGIN__;
 _start ()
 {
@ -2278,7 +2279,7 @@ __bzero () {}
 EOF
 if { ac_try='${CC-cc} $CFLAGS
 			    -nostdlib -nostartfiles
-			    -o conftest conftest.c -lgcc >&5'; { (eval echo configure:2282: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+			    -o conftest conftest.c -lgcc >&5'; { (eval echo configure:2283: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
  libc_cv_gcc_dwarf2_unwind_info=yes
 else
  libc_cv_gcc_dwarf2_unwind_info=no
@ -2336,7 +2337,7 @@ if test "$uname" = "sysdeps/generic"; then
  fi

  echo $ac_n "checking OS release for uname""... $ac_c" 1>&6
-echo "configure:2340: checking OS release for uname" >&5
+echo "configure:2341: checking OS release for uname" >&5
 if eval "test \"`echo '$''{'libc_cv_uname_release'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -2358,7 +2359,7 @@ echo "$ac_t""$libc_cv_uname_release" 1>&6
  uname_release="$libc_cv_uname_release"

  echo $ac_n "checking OS version for uname""... $ac_c" 1>&6
-echo "configure:2362: checking OS version for uname" >&5
+echo "configure:2363: checking OS version for uname" >&5
 if eval "test \"`echo '$''{'libc_cv_uname_version'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
@ -2380,7 +2381,7 @@ else
 fi

 echo $ac_n "checking stdio selection""... $ac_c" 1>&6
-echo "configure:2384: checking stdio selection" >&5
+echo "configure:2385: checking stdio selection" >&5

 case $stdio in
 libio) cat >> confdefs.h <<\EOF
@ -2392,7 +2393,7 @@ esac
 echo "$ac_t""$stdio" 1>&6

 echo $ac_n "checking ldap selection""... $ac_c" 1>&6
-echo "configure:2396: checking ldap selection" >&5
+echo "configure:2397: checking ldap selection" >&5

 case $add_ons in
 *ldap*)
@ -2442,7 +2443,7 @@ if test $shared = default; then
 fi

 echo $ac_n "checking whether -fPIC is default""... $ac_c" 1>&6
-echo "configure:2446: checking whether -fPIC is default" >&5
+echo "configure:2447: checking whether -fPIC is default" >&5
 if eval "test \"`echo '$''{'pic_default'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
 else
--- a/configure.in
+++ b/configure.in
@ -422,7 +422,8 @@ AC_CHECK_TOOL(RANLIB, ranlib, :)

 AC_PATH_PROG(BASH, bash, no)
 if test "$BASH" != no &&
-   $BASH -c 'test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then
+   $BASH -c 'test "$BASH_VERSINFO"
+	     && test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then
  libc_cv_have_bash2=yes
 else
  libc_cv_have_bash2=no
--- a/csu/Makefile
+++ b/csu/Makefile
@ -36,7 +36,7 @@ omit-deps = $(patsubst %.o,%,$(start-installed-name) g$(start-installed-name) \
 		             $(csu-dummies))
 install-lib = $(start-installed-name) g$(start-installed-name) \
 	      $(csu-dummies)
-distribute = initfini.c gmon-start.c start.c defs.awk abi-note.S
+distribute = initfini.c gmon-start.c start.c defs.awk abi-note.S init.c

 all: # Make this the default target; it will be defined in Rules.

@ -89,7 +89,7 @@ $(objpfx)defs.h: $(objpfx)initfini.s
 endif

 ifeq (yes,$(elf))
-extra-objs += abi-note.o
+extra-objs += abi-note.o init.o
 asm-CPPFLAGS += -I$(objpfx).
 endif

@ -103,7 +103,8 @@ ifndef start-installed-name-rule
 ifeq (yes,$(elf))
 # We link the ELF startfile along with a SHT_NOTE section indicating
 # the the kernel ABI the binaries linked with this library will require.
-$(objpfx)$(start-installed-name): $(objpfx)start.o $(objpfx)abi-note.o
+$(objpfx)$(start-installed-name): $(objpfx)start.o $(objpfx)abi-note.o \
+				  $(objpfx)init.o
 	$(link-relocatable)
 else
 # The startfile is installed under different names, so we just call our
--- a/csu/init.c
+++ b/csu/init.c
@ -0,0 +1,37 @@
+/* Special startup support.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it
+   and/or modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   In addition to the permissions in the GNU Library General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file with other
+   programs, and to distribute those programs without any restriction
+   coming from the use of this file.  (The Library General Public
+   License restrictions do apply in other respects; for example, they
+   cover modification of the file, and distribution when not linked
+   into another program.)
+
+   The GNU C Library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#if defined __GNUC__ && __GNUC__ >= 2
+
+#undef _LIBC
+#include <libio.h>
+
+/* This records which stdio is linked against in the application. */
+const void *const _IO_stdin_used = _IO_stdin;
+
+#endif
--- a/db2/Makefile
+++ b/db2/Makefile
@ -33,7 +33,7 @@ subdir-dirs = btree common db db185 dbm hash lock log mp mutex os txn \
 headers = db.h db_185.h

 distribute = db_int.h config.h compat.h clib/getlong.c btree/btree.src \
-	     db/db.src db185/db185_int.src hash/hash.src log/log.src \
+	     db/db.src db185/db185_int.h hash/hash.src log/log.src \
 	     txn/txn.src \
 	     $(addprefix include/,btree.h btree_auto.h btree_ext.h \
 				  clib_ext.h common_ext.h cxx_int.h \
--- a/elf/Makefile
+++ b/elf/Makefile
@ -37,7 +37,7 @@ elide-routines.os = $(dl-routines) dl-support enbl-secure
 rtld-routines	:= rtld $(dl-routines) dl-sysdep dl-minimal
 distribute	= $(rtld-routines:=.c) dynamic-link.h do-rel.h dl-machine.h \
 		  dl-hash.h soinit.c sofini.c ldd.sh.in ldd.bash.in eval.c \
-		  genrtldtbl.awk
+		  genrtldtbl.awk atomicity.h

 extra-libs	 = libdl
 extra-libs-others = $(extra-libs)
--- a/elf/dl-lookup.c
+++ b/elf/dl-lookup.c
@ -155,11 +155,12 @@ do_lookup (const char *undef_name, unsigned long int hash,
 	      else
 		{
 		  /* We can match the version information or use the
-		     default one.  */
+		     default one if it is not hidden.  */
 		  ElfW(Half) ndx = verstab[symidx] & 0x7fff;
 		  if ((map->l_versions[ndx].hash != version->hash
 		       || strcmp (map->l_versions[ndx].name, version->name))
-		      && (version->hidden || map->l_versions[ndx].hash))
+		      && (version->hidden || map->l_versions[ndx].hash
+			  || (verstab[symidx] & 0x8000)))
 		    /* It's not the version we want.  */
 		    continue;
 		}
--- a/elf/genrtldtbl.awk
+++ b/elf/genrtldtbl.awk
@ -5,7 +5,8 @@ BEGIN {
 }
 {
  for (i = 1; i <= NF; ++i) {
-    dir[count++] = gensub(/((.*)[^/])?[/]*/, "\\1", "", $i);
+    gsub (/\/*$/, "", $i);
+    dir[count++] = $i;
  }
 }
 END {
--- a/iconv/Makefile
+++ b/iconv/Makefile
@ -0,0 +1,32 @@
+# Copyright (C) 1997 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Library General Public License as
+# published by the Free Software Foundation; either version 2 of the
+# License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Library General Public License for more details.
+
+# You should have received a copy of the GNU Library General Public
+# License along with the GNU C Library; see the file COPYING.LIB.  If
+# not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+#
+#	Makefile for iconv.
+#
+subdir	:= iconv
+
+headers		= iconv.h gconv.h
+routines	= iconv_open iconv iconv_close \
+		  gconv_open gconv gconv_close gconv_db gconv_conf \
+		  gconv_dl gconv_builtin gconv_simple
+distribute	= gconv_builtin.h
+
+CFLAGS-gconv_conf.c = -DGCONV_PATH='"$(gconvdir)"'
+
+include ../Rules
--- a/iconv/gconv.c
+++ b/iconv/gconv.c
@ -0,0 +1,46 @@
+/* Convert characters in input buffer using conversion descriptor to
+   output buffer.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <gconv.h>
+
+
+int
+__gconv (gconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf,
+	 size_t *outbytesleft, size_t *converted)
+{
+  size_t last_step = cd->nsteps - 1;
+  int result;
+
+  cd->data[last_step].outbuf = *outbuf;
+  cd->data[last_step].outbufavail = 0;
+  cd->data[last_step].outbufsize = *outbytesleft;
+
+  if (converted != NULL)
+    *converted = 0;
+
+  result = (*cd->steps->fct) (cd->steps, cd->data, inbuf, inbytesleft,
+			      converted, inbuf == NULL || *inbuf == NULL);
+
+  *outbuf += cd->data[last_step].outbufavail;
+  *outbytesleft -= cd->data[last_step].outbufavail;
+
+  return result;
+}
--- a/iconv/gconv.h
+++ b/iconv/gconv.h
@ -0,0 +1,205 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _GCONV_H
+#define _GCONV_H	1
+
+#include <features.h>
+#include <sys/types.h>
+#include <regex.h>
+
+/* Error codes for gconv functions.  */
+enum
+{
+  GCONV_OK = 0,
+  GCONV_NOCONV,
+  GCONV_NODB,
+  GCONV_NOMEM,
+
+  GCONV_EMPTY_INPUT,
+  GCONV_FULL_OUTPUT,
+  GCONV_ILLEGAL_INPUT,
+
+  GCONV_ILLEGAL_DESCRIPTOR,
+  GCONV_INTERNAL_ERROR
+};
+
+
+/* Structure for alias definition.  Simply to strings.  */
+struct gconv_alias
+{
+  __const char *fromname;
+  __const char *toname;
+};
+
+
+/* Default size of intermediate buffers.  */
+#define GCONV_DEFAULT_BUFSIZE	8160
+
+
+/* Forward declarations.  */
+struct gconv_step;
+struct gconv_step_data;
+
+
+/* Type of a conversion function.  */
+typedef int (*gconv_fct) __P ((struct gconv_step *,
+			       struct gconv_step_data *,
+			       __const char *, size_t *, size_t *, int));
+
+/* Constructor and destructor for local data for conversion step.  */
+typedef int (*gconv_init_fct) __P ((struct gconv_step *,
+				    struct gconv_step_data *));
+typedef void (*gconv_end_fct) __P ((struct gconv_step_data *));
+
+
+/* Description of a conversion step.  */
+struct gconv_step
+{
+  void *shlib_handle;
+
+  __const char *from_name;
+  __const char *to_name;
+
+  gconv_fct fct;
+  gconv_init_fct init_fct;
+  gconv_end_fct end_fct;
+};
+
+/* Additional data for steps in use of conversion descriptor.  This is
+   allocated by the `init' function.  */
+struct gconv_step_data
+{
+  char *outbuf;		/* Output buffer for this step.  */
+  size_t outbufavail;	/* Bytes already available in output buffer.  */
+  size_t outbufsize;	/* Size of output buffer.  */
+
+  int is_last;
+
+  void *data;		/* Pointer to step-local data.  */
+};
+
+/* Combine conversion step description with data.  */
+typedef struct gconv_info
+{
+  size_t nsteps;
+  struct gconv_step *steps;
+  struct gconv_step_data *data;
+} *gconv_t;
+
+
+/* Description for an available conversion module.  */
+struct gconv_module
+{
+  __const char *from_pattern;
+  __const char *from_constpfx;
+  size_t from_constpfx_len;
+  __const regex_t *from_regex;
+
+  __const char *to_string;
+
+  int cost;
+
+  __const char *module_name;
+};
+
+
+/* Global variables.  */
+
+/* Database of alias names.  */
+extern void *__gconv_alias_db;
+
+/* Array with available modules.  */
+extern size_t __gconv_nmodules;
+extern struct gconv_module **__gconv_modules_db;
+
+
+/* Return in *HANDLE decriptor for transformation from FROMSET to TOSET.  */
+extern int __gconv_open __P ((__const char *__toset, __const char *__fromset,
+			      gconv_t *__handle));
+
+/* Free resources associated with transformation descriptor CD.  */
+extern int __gconv_close __P ((gconv_t cd));
+
+/* Transform at most *INBYTESLEFT bytes from buffer starting at *INBUF
+   according to rules described by CD and place up to *OUTBYTESLEFT
+   bytes in buffer starting at *OUTBUF.  Return number of written
+   characters in *CONVERTED if this pointer is not null.  */
+extern int __gconv __P ((gconv_t __cd,
+			 __const char **__inbuf, size_t *__inbytesleft,
+			 char **__outbuf, size_t *__outbytesleft,
+			 size_t *__converted));
+
+/* Return in *HANDLE a pointer to an array with *NSTEPS elements describing
+   the single steps necessary for transformation from FROMSET to TOSET.  */
+extern int __gconv_find_transform __P ((__const char *__toset,
+					__const char *__fromset,
+					struct gconv_step **__handle,
+					size_t *__nsteps));
+
+/* Read all the configuration data and cache it.  */
+extern void __gconv_read_conf __P ((void));
+
+/* Comparison function to search alias.  */
+extern int __gconv_alias_compare __P ((__const void *__p1,
+				       __const void *__p2));
+
+/* Clear reference to transformation step implementations which might
+   cause the code to be unloaded.  */
+extern int __gconv_close_transform __P ((struct gconv_step *__steps,
+					 size_t __nsteps));
+
+
+/* Find in the shared object associated with HANDLE for a function with
+   name NAME.  Return function pointer or NULL.  */
+extern void *__gconv_find_func __P ((void *__handle, __const char *__name));
+
+/* Load shared object named by NAME.  If already loaded increment reference
+   count.  */
+extern void *__gconv_find_shlib __P ((__const char *__name));
+
+/* Release shared object.  If no further reference is available unload
+   the object.  */
+extern int __gconv_release_shlib __P ((void *__handle));
+
+/* Fill STEP with information about builtin module with NAME.  */
+extern void __gconv_get_builtin_trans __P ((__const char *__name,
+					    struct gconv_step *__step));
+
+
+
+/* Builtin transformations.  */
+#ifdef _LIBC
+# define __BUILTIN_TRANS(Name) \
+  extern int Name __P ((struct gconv_step *__step,			      \
+			struct gconv_step_data *__data, __const char *__inbuf,\
+			size_t *__inlen, size_t *__written, int __do_flush))
+
+__BUILTIN_TRANS (__gconv_transform_dummy);
+__BUILTIN_TRANS (__gconv_transform_ucs4_utf8);
+__BUILTIN_TRANS (__gconv_transform_utf8_ucs4);
+# undef __BUITLIN_TRANS
+
+extern int __gconv_transform_init_rstate __P ((struct gconv_step *__step,
+					      struct gconv_step_data *__data));
+extern void __gconv_transform_end_rstate __P ((struct gconv_step_data *__data));
+
+#endif
+
+#endif /* gconv.h */
--- a/iconv/gconv_builtin.c
+++ b/iconv/gconv_builtin.c
@ -0,0 +1,64 @@
+/* Table for builtin transformation mapping.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <gconv.h>
+#include <string.h>
+
+#include <assert.h>
+
+
+static struct builtin_map
+{
+  const char *name;
+  gconv_fct fct;
+  gconv_init_fct init;
+  gconv_end_fct end;
+
+} map[] =
+{
+#define BUILTIN_TRANSFORMATION(From, ConstPfx, ConstLen, To, Cost, Name, \
+			       Fct, Init, End) \
+  {									      \
+    name: Name,								      \
+    fct: Fct,								      \
+    init: Init,								      \
+    end: End,								      \
+  },
+
+#include <gconv_builtin.h>
+};
+
+
+void
+__gconv_get_builtin_trans (const char *name, struct gconv_step *step)
+{
+  size_t cnt;
+
+  for (cnt = 0; cnt < sizeof (map) / sizeof (map[0]); ++cnt)
+    if (strcmp (name, map[cnt].name) == 0)
+      break;
+
+  assert (cnt < sizeof (map) / sizeof (map[0]));
+
+  step->fct = map[cnt].fct;
+  step->init_fct = map[cnt].init;
+  step->end_fct = map[cnt].end;
+  step->shlib_handle = NULL;
+}
--- a/iconv/gconv_builtin.h
+++ b/iconv/gconv_builtin.h
@ -0,0 +1,34 @@
+/* Builtin transformations.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+BUILTIN_TRANSFORMATION ("\\([^/]+\\)/UCS4/\\([^/]*\\)", NULL, 0,
+			"\\1/UTF8/\\2", 1, "=ucs4->utf8",
+			__gconv_transform_ucs4_utf8,
+			__gconv_transform_init_rstate,
+			__gconv_transform_end_rstate)
+
+BUILTIN_TRANSFORMATION ("\\([^/]+\\)/UTF8/\\([^/]*\\)", NULL, 0,
+			"\\1/UCS4/\\2", 1, "=utf8->ucs4",
+			__gconv_transform_utf8_ucs4,
+			__gconv_transform_init_rstate,
+			__gconv_transform_end_rstate)
+
+BUILTIN_TRANSFORMATION ("\\(.*\\)", NULL, 0, "\\1", 1, "=dummy",
+			__gconv_transform_dummy, NULL, NULL)
--- a/iconv/gconv_close.c
+++ b/iconv/gconv_close.c
@ -0,0 +1,64 @@
+/* Release any resource associated with given conversion descriptor.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <gconv.h>
+#include <stdlib.h>
+
+
+int
+__gconv_close (gconv_t cd)
+{
+  struct gconv_step *srunp;
+  struct gconv_step_data *drunp;
+  size_t nsteps;
+
+  /* Free all resources by calling destructor functions and release
+     the implementations.  */
+  srunp = cd->steps;
+  nsteps = cd->nsteps;
+  drunp = cd->data;
+  do
+    {
+      /* Call destructor.  */
+      if (srunp->end_fct != NULL)
+	(*srunp->end_fct) (drunp);
+      else
+	{
+	  free (drunp->outbuf);
+	  if (drunp->data != NULL)
+	    free (drunp->data);
+	}
+
+      /* Next step.  */
+      ++srunp;
+      ++drunp;
+    }
+  while (!drunp->is_last);
+
+  /* Save the pointer, we need it below.  */
+  srunp = cd->steps;
+
+  /* Free the data allocated for the descriptor.  */
+  free (cd->data);
+  free (cd);
+
+  /* Close the participating modules.  */
+  return __gconv_close_transform (srunp, nsteps);
+}
--- a/iconv/gconv_conf.c
+++ b/iconv/gconv_conf.c
@ -0,0 +1,420 @@
+/* Handle configuration data.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <ctype.h>
+#include <gconv.h>
+#include <search.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/param.h>
+
+
+/* This is the default path where we look for module lists.  */
+static const char default_gconv_path[] = GCONV_PATH;
+
+/* Name of the file containing the module information in the directories
+   along the path.  */
+static const char gconv_conf_filename[] = "gconv-modules";
+
+/* We have a few builtin transformations.  */
+static struct gconv_module builtin_modules[] =
+{
+#define BUILTIN_TRANSFORMATION(From, ConstPfx, ConstLen, To, Cost, Name, \
+			       Fct, Init, End) \
+  {									      \
+    from_pattern: From,							      \
+    from_constpfx: ConstPfx,						      \
+    from_constpfx_len: ConstLen,					      \
+    from_regex: NULL,							      \
+    to_string: To,							      \
+    cost: Cost,								      \
+    module_name: Name							      \
+  },
+
+#include "gconv_builtin.h"
+};
+
+
+/* Function for searching module.  */
+static int
+module_compare (const void *p1, const void *p2)
+{
+  struct gconv_module *s1 = (struct gconv_module *) p1;
+  struct gconv_module *s2 = (struct gconv_module *) p2;
+  int result;
+
+  if (s1->from_pattern == NULL)
+    {
+      if (s2->from_pattern == NULL)
+	result = strcmp (s1->from_constpfx, s2->from_constpfx);
+      else
+	result = -1;
+    }
+  else if (s2->from_pattern == NULL)
+    result = 1;
+  else
+    result = strcmp (s1->from_pattern, s2->from_pattern);
+
+  if (result == 0)
+    result = strcmp (s1->to_string, s2->to_string);
+
+  return result;
+}
+
+
+/* Add new alias.  */
+static inline void
+add_alias (char *rp)
+{
+  /* We now expect two more string.  The strings are normalized
+     (converted to UPPER case) and strored in the alias database.  */
+  struct gconv_alias *new_alias;
+  char *from, *to, *wp;
+
+  while (isspace (*rp))
+    ++rp;
+  from = wp = rp;
+  while (*rp != '\0' && !isspace (*rp))
+    ++rp;
+  if (*rp == '\0')
+    /* There is no `to' string on the line.  Ignore it.  */
+    return;
+  *rp++ = '\0';
+  to = wp = rp;
+  while (isspace (*rp))
+    ++rp;
+  while (*rp != '\0' && !isspace (*rp))
+    *wp++ = *rp++;
+  if (to == wp)
+    /* No `to' string, ignore the line.  */
+    return;
+  *wp++ = '\0';
+
+  new_alias = (struct gconv_alias *)
+    malloc (sizeof (struct gconv_alias) + (wp - from));
+  new_alias->fromname = memcpy ((char *) new_alias
+				+ sizeof (struct gconv_alias),
+				from, to - from);
+  new_alias->toname = memcpy ((char *) new_alias + sizeof (struct gconv_alias)
+			      + (to - from), to, wp - to);
+
+  if (__tsearch (new_alias, &__gconv_alias_db, __gconv_alias_compare) == NULL)
+    /* Something went wrong, free this entry.  */
+    free (new_alias);
+}
+
+
+/* Add new module.  */
+static inline void
+add_module (char *rp, const char *directory, size_t dir_len, void **modules,
+	    size_t *nmodules)
+{
+  /* We expect now
+     1. `from' name
+     2. `to' name
+     3. filename of the module
+     4. an optional cost value
+  */
+  struct gconv_module *new_module;
+  char *from, *to, *module, *wp;
+  size_t const_len;
+  int from_is_regex;
+  int cost;
+
+  while (isspace (*rp))
+    ++rp;
+  from = rp;
+  from_is_regex = 0;
+  while (*rp != '\0' && !isspace (*rp))
+    {
+      if (!isalnum (*rp) && *rp != '-' && *rp != '/' && *rp != '.'
+	  && *rp != '_')
+	from_is_regex = 1;
+      ++rp;
+    }
+  if (*rp == '\0')
+    return;
+  *rp++ = '\0';
+  to = wp = rp;
+  while (isspace (*rp))
+    ++rp;
+  while (*rp != '\0' && !isspace (*rp))
+    *wp++ = *rp++;
+  if (*rp == '\0')
+    return;
+  *wp++ = '\0';
+  do
+    ++rp;
+  while (isspace (*rp));
+  module = wp;
+  while (*rp != '\0' && !isspace (*rp))
+    *wp++ = *rp++;
+  if (*rp == '\0')
+    {
+      /* There is no cost, use one by default.  */
+      *wp++ = '\0';
+      cost = 1;
+    }
+  else
+    {
+      /* There might be a cost value.  */
+      char *endp;
+
+      *wp++ = '\0';
+      cost = strtol (rp, &endp, 10);
+      if (rp == endp)
+	/* No useful information.  */
+	cost = 1;
+    }
+
+  if (module[0] == '\0')
+    /* No module name given.  */
+    return;
+  if (module[0] == '/')
+    dir_len = 0;
+  else
+    /* Increment by one for the slash.  */
+    ++dir_len;
+
+  /* We've collected all the information, now create an entry.  */
+
+  const_len = 0;
+  if (from_is_regex)
+    do
+      ++const_len;
+    while (isalnum (from[const_len]) || from[const_len] == '-'
+	   || from[const_len] == '/' || from[const_len] == '.'
+	   || from[const_len] == '_');
+
+  new_module = (struct gconv_module *) malloc (sizeof (struct gconv_module)
+					       + (wp - from) + const_len
+					       + dir_len);
+  if (new_module != NULL)
+    {
+      if (from_is_regex)
+	{
+	  new_module->from_pattern = memcpy ((char *) new_module
+					     + sizeof (struct gconv_module),
+					     from, to - from);
+	  new_module->from_constpfx = memcpy ((char *) new_module->from_pattern
+					      + (to - from),
+					      from, const_len);
+	  ((char *) new_module->from_constpfx)[const_len] = '\0';
+	  new_module->from_constpfx_len = const_len;
+	  ++const_len;
+	}
+      else
+	{
+	  new_module->from_pattern = NULL;
+	  new_module->from_constpfx = memcpy ((char *) new_module
+					      + sizeof (struct gconv_module),
+					      from, to - from);
+	  new_module->from_constpfx_len = to - from - 1;
+	  const_len = to - from;
+	}
+      new_module->from_regex = NULL;
+
+      new_module->to_string = memcpy ((char *) new_module->from_constpfx
+				      + const_len + 1, to, module - to);
+
+      new_module->cost = cost;
+
+      if (dir_len == 0)
+	new_module->module_name = memcpy ((char *) new_module->to_string
+					  + (module - to),
+					  module, wp - module);
+      else
+	{
+	  char *tmp;
+	  new_module->module_name = ((char *) new_module->to_string
+				     + (module - to));
+	  tmp = __mempcpy ((char *) new_module->module_name,
+			   directory, dir_len - 1);
+	  *tmp++ = '/';
+	  memcpy (tmp, module, wp - module);
+	}
+
+      if (__tfind (new_module, *modules, module_compare) != NULL)
+	if (__tsearch (new_module, modules, module_compare) == NULL)
+	  /* Something went wrong while inserting the new module.  */
+	  free (new_module);
+	else
+	  ++*nmodules;
+    }
+}
+
+
+static void
+insert_module (const void *nodep, VISIT value, int level)
+{
+  if (value == preorder || value == leaf)
+    __gconv_modules_db[__gconv_nmodules++] = (struct gconv_module *) nodep;
+}
+
+static void
+nothing (void *unused __attribute__ ((unused)))
+{
+}
+
+
+/* Read the next configuration file.  */
+static void
+internal_function
+read_conf_file (const char *filename, const char *directory, size_t dir_len,
+		void **modules, size_t *nmodules)
+{
+  FILE *fp = fopen (filename, "r");
+  char *line = NULL;
+  size_t line_len = 0;
+
+  /* Don't complain if a file is not present or readable, simply silently
+     ignore it.  */
+  if (fp == NULL)
+    return;
+
+  /* Process the known entries of the file.  Comments start with `#' and
+     end with the end of the line.  Empty lines are ignored.  */
+  while (!feof (fp))
+    {
+      char *rp, *endp, *word;
+      ssize_t n = __getdelim (&line, &line_len, '\n', fp);
+      if (n < 0)
+	/* An error occurred.  */
+	break;
+
+      rp = line;
+      while (isspace (*rp))
+	++rp;
+      /* Terminate the line (excluding comments or newline) by an NUL byte
+	 to simplify the following code.  */
+      endp = strchr (rp, '#');
+      if (endp != NULL)
+	*endp = '\0';
+      else
+	{
+	  endp = strchr (rp, '\n');
+	  if (endp != NULL)
+	    *endp = '\0';
+	}
+
+      /* If this is an empty line go on with the next one.  */
+      if (rp == endp)
+	continue;
+
+      word = rp;
+      while (*rp != '\0' && !isspace (*rp))
+	++rp;
+
+      if (rp - word == sizeof ("alias") - 1
+	  && memcpy (word, "alias", sizeof ("alias") - 1) == 0)
+	add_alias (rp);
+      else if (rp - word == sizeof ("module") - 1
+	       && memcpy (word, "module", sizeof ("module") - 1) == 0)
+	add_module (rp, directory, dir_len, modules, nmodules);
+      /* else */
+	/* Otherwise ignore the line.  */
+    }
+
+  if (line != NULL)
+    free (line);
+  fclose (fp);
+}
+
+
+/* Read all configuration files found in the user-specified and the default
+   path.  */
+void
+__gconv_read_conf (void)
+{
+  const char *user_path = __secure_getenv ("GCONV_PATH");
+  char *gconv_path, *elem;
+  void *modules = NULL;
+  size_t nmodules = 0;
+
+  if (user_path == NULL)
+    /* No user-defined path.  Make a modifiable copy of the default path.  */
+    gconv_path = strdupa (default_gconv_path);
+  else
+    {
+      /* Append the default path to the user-defined path.  */
+      size_t user_len = strlen (user_path);
+      char *tmp;
+
+      gconv_path = alloca (user_len + 1 + sizeof (default_gconv_path));
+      tmp = __mempcpy (gconv_path, user_path, user_len);
+      *tmp++ = ':';
+      __mempcpy (tmp, default_gconv_path, sizeof (default_gconv_path));
+    }
+
+  elem = strtok_r (gconv_path, ":", &gconv_path);
+  while (elem != NULL)
+    {
+      char real_elem[MAXPATHLEN];
+
+      if (realpath (elem, real_elem) != NULL)
+	{
+	  size_t elem_len = strlen (real_elem);
+	  char *filename, *tmp;
+
+	  filename = alloca (elem_len + 1 + sizeof (gconv_conf_filename));
+	  tmp = __mempcpy (filename, real_elem, elem_len);
+	  *tmp++ = '/';
+	  __mempcpy (tmp, gconv_conf_filename, sizeof (gconv_conf_filename));
+
+	  /* Read the next configuration file.  */
+	  read_conf_file (filename, real_elem, elem_len, &modules, &nmodules);
+	}
+
+      /* Get next element in the path.  */
+      elem = strtok_r (NULL, ":", &gconv_path);
+    }
+
+  /* If the configuration files do not contain any valid module specification
+     remember this by setting the pointer to the module array to NULL.  */
+  nmodules = sizeof (builtin_modules) / sizeof (struct gconv_module);
+  if (nmodules == 0)
+    {
+      __gconv_modules_db = NULL;
+      return;
+    }
+
+  __gconv_modules_db =
+    (struct gconv_module **) malloc (nmodules * sizeof (struct gconv_module));
+  if (__gconv_modules_db == NULL)
+    /* We cannot do anything.  */
+    return;
+
+  /* First insert the builtin transformations.  */
+  while (__gconv_nmodules < (sizeof (builtin_modules)
+			     / sizeof (struct gconv_module)))
+    {
+      __gconv_modules_db[__gconv_nmodules] =
+	&builtin_modules[__gconv_nmodules];
+      ++__gconv_nmodules;
+    }
+
+  /* Insert all module entries into the array.  */
+  __twalk (modules, insert_module);
+
+  /* No remove the tree data structure.  */
+  __tdestroy (modules, nothing);
+}
--- a/iconv/gconv_db.c
+++ b/iconv/gconv_db.c
@ -0,0 +1,538 @@
+/* Provide access to the collection of available transformation modules.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <gconv.h>
+#include <search.h>
+#include <stdlib.h>
+#include <string.h>
+#include <bits/libc-lock.h>
+
+
+/* Simple data structure for alias mapping.  We have two names, `from'
+   and `to'.  */
+void *__gconv_alias_db;
+
+/* Array with available modules.  */
+size_t __gconv_nmodules;
+struct gconv_module **__gconv_modules_db;
+
+
+/* Function for searching alias.  */
+int
+__gconv_alias_compare (const void *p1, const void *p2)
+{
+  struct gconv_alias *s1 = (struct gconv_alias *) p1;
+  struct gconv_alias *s2 = (struct gconv_alias *) p2;
+  return __strcasecmp (s1->fromname, s2->fromname);
+}
+
+
+/* To search for a derivation we create a list of intermediate steps.
+   Each element contains a pointer to the element which precedes it
+   in the derivation order.  */
+struct derivation_step
+{
+  const char *result_set;
+  struct gconv_module *code;
+  struct derivation_step *last;
+  struct derivation_step *next;
+};
+
+#define NEW_STEP(result, module, last_mod) \
+  ({ struct derivation_step *newp = alloca (sizeof (struct derivation_step)); \
+     newp->result_set = result;						      \
+     newp->code = module;						      \
+     newp->last = last_mod;						      \
+     newp->next = NULL;							      \
+     newp; })
+
+
+/* If a specific transformation is used more than once we should not need
+   to start looking for it again.  Instead cache each successful result.  */
+struct known_derivation
+{
+  const char *from;
+  const char *to;
+  struct gconv_step *steps;
+  size_t nsteps;
+};
+
+/* Compare function for database of found derivations.  */
+static int
+derivation_compare (const void *p1, const void *p2)
+{
+  struct known_derivation *s1 = (struct known_derivation *) p1;
+  struct known_derivation *s2 = (struct known_derivation *) p2;
+  int result;
+
+  result = strcmp (s1->from, s2->from);
+  if (result == 0)
+    result = strcmp (s1->to, s2->to);
+  return result;
+}
+
+/* The search tree for known derivations.  */
+static void *known_derivations;
+
+/* Look up whether given transformation was already requested before.  */
+static int
+derivation_lookup (const char *fromset, const char *toset,
+		   struct gconv_step **handle, size_t *nsteps)
+{
+  struct known_derivation key = { fromset, toset, NULL, 0 };
+  struct known_derivation *result;
+
+  result = __tfind (&key, known_derivations, derivation_compare);
+
+  if (result == NULL)
+    return GCONV_NOCONV;
+
+  *handle = result->steps;
+  *nsteps = result->nsteps;
+
+  /* Please note that we return GCONV_OK even if the last search for
+     this transformation was unsuccessful.  */
+  return GCONV_OK;
+}
+
+/* Add new derivation to list of known ones.  */
+static void
+add_derivation (const char *fromset, const char *toset,
+		struct gconv_step *handle, size_t nsteps)
+{
+  struct known_derivation *new_deriv;
+  size_t fromset_len = strlen (fromset) + 1;
+  size_t toset_len = strlen (toset) + 1;
+
+  new_deriv = (struct known_derivation *)
+    malloc (sizeof (struct known_derivation) + fromset_len + toset_len);
+  if (new_deriv != NULL)
+    {
+      new_deriv->from = memcpy ((char *) new_deriv
+				+ sizeof (struct known_derivation),
+				fromset, fromset_len);
+      new_deriv->to = memcpy ((char *) new_deriv->from + fromset_len,
+			      toset, toset_len);
+
+      new_deriv->steps = handle;
+      new_deriv->nsteps = nsteps;
+
+      __tsearch (new_deriv, &known_derivations, derivation_compare);
+    }
+  /* Please note that we don't complain if the allocation failed.  This
+     is not tragically but in case we use the memory debugging facilities
+     not all memory will be freed.  */
+}
+
+static void
+free_derivation (void *p)
+{
+  struct known_derivation *deriv = (struct known_derivation *) p;
+
+  free ((struct gconv_step *) deriv->steps);
+  free (deriv);
+}
+
+
+static int
+internal_function
+gen_steps (struct derivation_step *best, const char *toset,
+	   const char *fromset, struct gconv_step **handle, size_t *nsteps)
+{
+  size_t step_cnt = 0;
+  struct gconv_step *result;
+  struct derivation_step *current;
+  int status = GCONV_NOMEM;
+
+  /* First determine number of steps.  */
+  for (current = best; current->last != NULL; current = current->last)
+    ++step_cnt;
+
+  result = (struct gconv_step *) malloc (sizeof (struct gconv_step)
+					 * step_cnt);
+  if (result != NULL)
+    {
+      current = best;
+      while (step_cnt-- > 0)
+	{
+	  result[step_cnt].from_name = current->last->result_set;
+	  result[step_cnt].to_name = current->result_set;
+
+	  if (current->code->module_name[0] == '/')
+	    {
+	      /* Load the module, return handle for it.  */
+	      void *shlib_handle =
+		__gconv_find_shlib (current->code->module_name);
+
+	      if (shlib_handle == NULL)
+		break;
+
+	      result[step_cnt].shlib_handle = shlib_handle;
+
+	      result[step_cnt].fct = __gconv_find_func (shlib_handle, "gconv");
+	      if (result[step_cnt].fct == NULL)
+		{
+		  /* Argh, no conversion function.  There is something
+		     wrong here.  */
+		  __gconv_release_shlib (result[step_cnt].shlib_handle);
+		  break;
+		}
+
+	      result[step_cnt].init_fct = __gconv_find_func (shlib_handle,
+							     "gconv_init");
+	      result[step_cnt].end_fct = __gconv_find_func (shlib_handle,
+							    "gconv_end");
+	    }
+	  else
+	    /* It's a builtin transformation.  */
+	    __gconv_get_builtin_trans (current->code->module_name,
+				       &result[step_cnt]);
+
+	  current = current->last;
+	}
+
+      if (step_cnt != 0)
+	{
+	  /* Something went wrong while initializing the modules.  */
+	  while (step_cnt-- > 0)
+	    __gconv_release_shlib (result[step_cnt].shlib_handle);
+	  free (result);
+	  status = GCONV_NOCONV;
+	}
+      else
+	{
+	  *handle = result;
+	  *nsteps = step_cnt;
+	  status = GCONV_OK;
+	}
+    }
+
+  return status;
+}
+
+
+/* The main function: find a possible derivation from the `fromset' (either
+   the given name or the alias) to the `toset' (again with alias).  */
+static int
+find_derivation (const char *toset, const char *toset_expand,
+		 const char *fromset, const char *fromset_expand,
+		 struct gconv_step **handle, size_t *nsteps)
+{
+  __libc_lock_define_initialized (static, lock)
+  struct derivation_step *current, **lastp, *best = NULL;
+  int best_cost = 0;
+  int result;
+
+  result = derivation_lookup (fromset_expand ?: fromset, toset_expand ?: toset,
+			      handle, nsteps);
+  if (result == GCONV_OK)
+    return result;
+
+  __libc_lock_lock (lock);
+
+  /* There is a small chance that this derivation is meanwhile found.  This
+     can happen if in `find_derivation' we look for this derivation, didn't
+     find it but at the same time another thread looked for this derivation. */
+  result = derivation_lookup (fromset_expand ?: fromset, toset_expand ?: toset,
+			      handle, nsteps);
+  if (result == GCONV_OK)
+    return result;
+
+  /* ### TODO
+     For now we use a simple algorithm with quadratic runtime behaviour.
+     The task is to match the `toset' with any of the available.  */
+  if (fromset_expand != NULL)
+    {
+      current = NEW_STEP (fromset_expand, NULL, NULL);
+      current->next = NEW_STEP (fromset, NULL, NULL);
+      lastp = &current->next->next;
+    }
+  else
+    {
+      current = NEW_STEP (fromset, NULL, NULL);
+      lastp = &current->next;
+    }
+
+  while (current != NULL)
+    {
+      /* Now match all the available module specifications against the
+         current charset name.  If any of them matches check whether
+         we already have a derivation for this charset.  If yes, use the
+         one with the lower costs.  Otherwise add the new charset at the
+         end.  */
+      size_t cnt;
+
+      for (cnt = 0; cnt < __gconv_nmodules; ++cnt)
+        {
+	  const char *result_set = NULL;
+
+	  if (__gconv_modules_db[cnt]->from_pattern == NULL)
+	    {
+	      if (__strcasecmp (current->result_set,
+				__gconv_modules_db[cnt]->from_constpfx) == 0)
+		{
+		  if (strcmp (__gconv_modules_db[cnt]->to_string, "-") == 0)
+		    result_set = toset_expand ?: toset;
+		  else
+		    result_set = __gconv_modules_db[cnt]->to_string;
+		}
+	    }
+	  else
+	    /* We have a regular expression.  First see if the prefix
+	       matches.  */
+	    if (__strncasecmp (current->result_set,
+			       __gconv_modules_db[cnt]->from_constpfx,
+			       __gconv_modules_db[cnt]->from_constpfx_len)
+		== 0)
+	      {
+		/* First compile the regex if not already done.  */
+		if (__gconv_modules_db[cnt]->from_regex == NULL)
+		  {
+		    regex_t *newp = (regex_t *) malloc (sizeof (regex_t));
+
+		    if (regcomp (newp, __gconv_modules_db[cnt]->from_pattern,
+				 REG_EXTENDED | REG_ICASE) != 0)
+		      {
+			/* Something is wrong.  Remember this.  */
+			free (newp);
+			__gconv_modules_db[cnt]->from_regex = (regex_t *) -1L;
+		      }
+		    else
+		      __gconv_modules_db[cnt]->from_regex = newp;
+		  }
+
+		if (__gconv_modules_db[cnt]->from_regex != (regex_t *) -1L)
+		  {
+		    /* Try to match the from name.  */
+		    regmatch_t match[4];
+
+		    if (regexec (__gconv_modules_db[cnt]->from_regex,
+				 current->result_set, 4, match, 0) == 0
+			&& match[0].rm_so == 0
+			&& current->result_set[match[0].rm_eo] == '\0')
+		      {
+			/* At least the whole <from> string is matched.
+			   We must now match sed-like possible
+			   subexpressions from the match to the
+			   toset expression.  */
+#define ENSURE_LEN(LEN) \
+  if (wp + (LEN) >= constr + len - 1)					      \
+    {									      \
+      char *newp = alloca (len += 128);					      \
+      memcpy (newp, constr, wp - constr);				      \
+      wp = newp + (wp - constr);					      \
+      constr = newp;							      \
+    }
+			size_t len = 128;
+			char *constr = alloca (len);
+			char *wp = constr;
+			const char *cp = __gconv_modules_db[cnt]->to_string;
+
+			while (*cp != '\0')
+			  {
+			    if (*cp != '\\')
+			      {
+				ENSURE_LEN (1);
+				*wp++ = *cp++;
+			      }
+			    else if (cp[1] == '\0')
+			      /* Backslash at end of string.  */
+			      break;
+			    else
+			      {
+				++cp;
+				if (*cp == '\\')
+				  {
+				    *wp++ = *cp++;
+				    ENSURE_LEN (1);
+				  }
+				else if (*cp < '1' || *cp > '3')
+				  break;
+				else
+				  {
+				    int idx = *cp - '0';
+				    if (match[idx].rm_so == -1)
+				      /* No match.  */
+				      break;
+
+				    ENSURE_LEN (match[idx].rm_eo
+						- match[idx].rm_so);
+				    wp = __mempcpy (wp,
+						    &current->result_set[match[idx].rm_so],
+						    match[idx].rm_eo
+						    - match[idx].rm_so);
+				    ++cp;
+				  }
+			      }
+			  }
+			if (*cp == '\0' && wp != constr)
+			  {
+                                /* Terminate the constructed string.  */
+			    *wp = '\0';
+			    result_set = constr;
+			  }
+		      }
+		  }
+	      }
+
+	  if (result_set != NULL)
+	    {
+	      /* We managed to find a derivation.  First see whether
+		 this is what we are looking for.  */
+	      if (__strcasecmp (result_set, toset) == 0
+		  || (toset_expand != NULL
+		      && __strcasecmp (result_set, toset_expand) == 0))
+		{
+		  /* Determine the costs.  If they are lower than the
+		     previous solution (or this is the first solution)
+		     remember this solution.  */
+		  int cost = __gconv_modules_db[cnt]->cost;
+		  struct derivation_step *runp = current;
+		  while (runp->code != NULL)
+		    {
+		      cost += runp->code->cost;
+		      runp = runp->last;
+		    }
+		  if (best == NULL || cost < best_cost)
+		    {
+		      best = NEW_STEP (result_set, __gconv_modules_db[cnt],
+				       current);
+		      best_cost = cost;
+		    }
+		}
+	      else
+		{
+		  /* Append at the end.  */
+		  *lastp = NEW_STEP (result_set, __gconv_modules_db[cnt],
+				     current);
+		  lastp = &(*lastp)->next;
+                }
+	    }
+	}
+    }
+
+  if (best != NULL)
+    /* We really found a way to do the transformation.  Now build a data
+       structure describing the transformation steps.*/
+    result = gen_steps (best, toset_expand ?: toset, fromset_expand ?: fromset,
+			handle, nsteps);
+  else
+    {
+      /* We haven't found a transformation.  Clear the result values.  */
+      *handle = NULL;
+      *nsteps = 0;
+    }
+
+  /* Add result in any case to list of known derivations.  */
+  add_derivation (fromset_expand ?: fromset, toset_expand ?: toset,
+		  *handle, *nsteps);
+
+  __libc_lock_unlock (lock);
+
+  return result;
+}
+
+
+int
+__gconv_find_transform (const char *toset, const char *fromset,
+			struct gconv_step **handle, size_t *nsteps)
+{
+  __libc_once_define (static, once);
+  const char *fromset_expand = NULL;
+  const char *toset_expand = NULL;
+  int result;
+
+  /* Ensure that the configuration data is read.  */
+  __libc_once (once, __gconv_read_conf);
+
+  /* If we don't have a module database return with an error.  */
+  if (__gconv_modules_db == NULL)
+    return GCONV_NOCONV;
+
+  /* See whether the names are aliases.  */
+  if (__gconv_alias_db != NULL)
+    {
+      struct gconv_alias key;
+      struct gconv_alias *found;
+
+      key.fromname = fromset;
+      found = __tfind (&key, __gconv_alias_db, __gconv_alias_compare);
+      fromset_expand = found != NULL ? found->toname : NULL;
+
+      key.fromname = toset;
+      found = __tfind (&key, __gconv_alias_db, __gconv_alias_compare);
+      toset_expand = found != NULL ? found->toname : NULL;
+    }
+
+  result = find_derivation (toset, toset_expand, fromset, fromset_expand,
+			    handle, nsteps);
+
+  /* The following code is necessary since `find_derivation' will return
+     GCONV_OK even when no derivation was found but the same request
+     was processed before.  I.e., negative results will also be cached.  */
+  return (result == GCONV_OK
+	  ? (*handle == NULL ? GCONV_NOCONV : GCONV_OK)
+	  : result);
+}
+
+
+/* Release the entries of the modules list.  */
+int
+__gconv_close_transform (struct gconv_step *steps, size_t nsteps)
+{
+  int result = GCONV_OK;
+
+  while (nsteps-- > 0)
+    if (steps[nsteps].shlib_handle != NULL)
+      {
+	result = __gconv_release_shlib (steps[nsteps].shlib_handle);
+	if (result != GCONV_OK)
+	  break;
+      }
+
+  return result;
+}
+
+
+/* Free all resources if necessary.  */
+static void __attribute__ ((unused))
+free_mem (void)
+{
+  size_t cnt;
+
+  if (__gconv_alias_db != NULL)
+    __tdestroy (__gconv_alias_db, free);
+
+  for (cnt = 0; cnt < __gconv_nmodules; ++cnt)
+    {
+      if (__gconv_modules_db[cnt]->from_regex != NULL)
+	regfree ((regex_t *) __gconv_modules_db[cnt]->from_regex);
+
+      /* Modules which names do not start with a slash are builtin
+	 transformations and the memory is not allocated dynamically.  */
+      if (__gconv_modules_db[cnt]->module_name[0] == '/')
+	free (__gconv_modules_db[cnt]);
+    }
+
+  if (known_derivations != NULL)
+    __tdestroy (known_derivations, free_derivation);
+}
+
+text_set_element (__libc_subfreeres, free_mem);
--- a/iconv/gconv_dl.c
+++ b/iconv/gconv_dl.c
@ -0,0 +1,254 @@
+/* Handle loading/unloading of shared object for transformation.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <dlfcn.h>
+#include <gconv.h>
+#include <inttypes.h>
+#include <link.h>
+#include <search.h>
+#include <stdlib.h>
+#include <string.h>
+#include <bits/libc-lock.h>
+#include <sys/param.h>
+
+
+/* This is a tuning parameter.  If a transformation module is not used
+   anymore it gets not immediately unloaded.  Instead we wait a certain
+   number of load attempts for further modules.  If none of the
+   subsequent load attempts name the same object it finally gets unloaded.
+   Otherwise it is still available which hopefully is the frequent case.
+   The following number is the number of unloading attempts we wait
+   before unloading.  */
+#define TRIES_BEFORE_UNLOAD	2
+
+
+/* Structure describing one loaded shared object.  This normally are
+   objects to perform conversation but as a special case the db shared
+   object is also handled.  */
+struct loaded_object
+{
+  /* Name of the object.  */
+  const char *name;
+
+  /* Reference counter for the db functionality.  If no conversion is
+     needed we unload the db library.  */
+  int counter;
+
+  /* The handle for the shared object.  */
+  void *handle;
+};
+
+
+/* Array of loaded objects.  This is shared by all threads so we have
+   to use semaphores to access it.  */
+static void *loaded;
+__libc_lock_define_initialized (static, lock)
+
+
+
+/* Comparison function for searching `loaded_object' tree.  */
+static int
+known_compare (const void *p1, const void *p2)
+{
+  const struct loaded_object *s1 = (const struct loaded_object *) p1;
+  const struct loaded_object *s2 = (const struct loaded_object *) p2;
+
+  return (intptr_t) s1->handle - (intptr_t) s2->handle;
+}
+
+
+static void
+do_open (void *a)
+{
+  struct loaded_object *args = (struct loaded_object *) a;
+  /* Open and relocate the shared object.  */
+  args->handle = _dl_open (args->name, RTLD_LAZY);
+}
+
+
+static int
+dlerror_run (void (*operate) (void *), void *args)
+{
+  char *last_errstring = NULL;
+  const char *last_object_name = NULL;
+  int result;
+
+  (void) _dl_catch_error (&last_errstring, &last_object_name, operate, args);
+
+  result = last_errstring != NULL;
+  if (result)
+    free (last_errstring);
+
+  return result;
+}
+
+
+struct get_sym_args
+{
+  /* Arguments to get_sym.  */
+  struct link_map *map;
+  const char *name;
+
+  /* Return values of get_sym.  */
+  ElfW(Addr) loadbase;
+  const ElfW(Sym) *ref;
+};
+
+static void
+get_sym (void *a)
+{
+  struct get_sym_args *args = (struct get_sym_args *) a;
+  struct link_map *scope[2] = { args->map, NULL };
+  args->ref = NULL;
+  args->loadbase = _dl_lookup_symbol (args->name, &args->ref,
+				      scope, args->map->l_name, 0);
+}
+
+
+void *
+__gconv_find_func (void *handle, const char *name)
+{
+  struct get_sym_args args;
+
+  args.map = handle;
+  args.name = name;
+
+  return (dlerror_run (get_sym, &args) ? NULL
+	  : (void *) (args.loadbase + args.ref->st_value));
+}
+
+
+
+/* Open the gconv database if necessary.  A non-negative return value
+   means success.  */
+void *
+__gconv_find_shlib (const char *name)
+{
+  void *result = NULL;
+  struct loaded_object *found;
+
+  /* Acquire the lock.  */
+  __libc_lock_lock (lock);
+
+  /* Search the tree of shared objects previously requested.  Data in
+     the tree are `loaded_object' structures, whose first member is a
+     `const char *', the lookup key.  The search returns a pointer to
+     the tree node structure; the first member of the is a pointer to
+     our structure (i.e. what will be a `loaded_object'); since the
+     first member of that is the lookup key string, &FCT_NAME is close
+     enough to a pointer to our structure to use as a lookup key that
+     will be passed to `known_compare' (above).  */
+
+  found = __tfind (&name, loaded, known_compare);
+  if (found == NULL)
+    {
+      /* This name was not known before.  */
+      found = malloc (sizeof (struct loaded_object));
+      if (found != NULL)
+	{
+	  /* Point the tree node at this new structure.  */
+	  found->name = name;
+	  found->counter = -TRIES_BEFORE_UNLOAD - 1;
+	  found->handle = NULL;
+
+	  if (__tsearch (found, &loaded, known_compare) == NULL)
+	    {
+	      /* Something went wrong while inserting the entry.  */
+	      free (found);
+	      found = NULL;
+	    }
+	}
+    }
+
+  /* Try to load the shared object if the usage count is 0.  This
+     implies that if the shared object is not loadable, the handle is
+     NULL and the usage count > 0.  */
+  if (found != NULL)
+    {
+      if (found->counter < -TRIES_BEFORE_UNLOAD)
+	{
+	  if (dlerror_run (do_open, found) == 0)
+	    found->counter = 1;
+	}
+      else if (found->handle != NULL)
+	found->counter = MAX (found->counter + 1, 1);
+
+      result = found->handle;
+    }
+
+  /* Release the lock.  */
+  __libc_lock_unlock (lock);
+
+  return result;
+}
+
+
+/* This is very ugly but the tsearch functions provide no way to pass
+   information to the walker function.  So we use a global variable.
+   It is MT safe since we use a lock.  */
+static void *release_handle;
+
+static void
+do_release_shlib (const void *nodep, VISIT value, int level)
+{
+  struct loaded_object *obj = (struct loaded_object *) nodep;
+
+  if (value != preorder && value != leaf)
+    return;
+
+  if (obj->handle == release_handle)
+    /* This is the object we want to unload.  Now set the release
+       counter to zero.  */
+    obj->counter = 0;
+  else if (obj->counter <= 0)
+    {
+      if (--obj->counter < -TRIES_BEFORE_UNLOAD && obj->handle != NULL)
+	{
+	  /* Unload the shared object.  We don't use the trick to
+	     catch errors since in the case an error is signalled
+	     something is really wrong.  */
+	  _dl_close ((struct link_map *) obj->handle);
+
+	  obj->handle = NULL;
+	}
+    }
+}
+
+
+/* Notify system that a shared object is not longer needed.  */
+int
+__gconv_release_shlib (void *handle)
+{
+  /* Acquire the lock.  */
+  __libc_lock_lock (lock);
+
+  /* Urgh, this is ugly but we have no other possibility.  */
+  release_handle = handle;
+
+  /* Process all entries.  Please note that we also visit entries
+     with release counts <= 0.  This way we can finally unload them
+     if necessary.  */
+  __twalk (loaded, do_release_shlib);
+
+  /* Release the lock.  */
+  __libc_lock_unlock (lock);
+
+  return GCONV_OK;
+}
--- a/iconv/gconv_open.c
+++ b/iconv/gconv_open.c
@ -0,0 +1,123 @@
+/* Find matching transformation algorithms and initialize steps.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <gconv.h>
+#include <stdlib.h>
+
+
+int
+__gconv_open (const char *toset, const char *fromset, gconv_t *handle)
+{
+  struct gconv_step *steps;
+  size_t nsteps;
+  gconv_t result = NULL;
+  size_t cnt = 0;
+  int res;
+
+  res = __gconv_find_transform (toset, fromset, &steps, &nsteps);
+  if (res == GCONV_OK)
+    {
+      /* Allocate room for handle.  */
+      result = (gconv_t) malloc (sizeof (struct gconv_info));
+      if (result == NULL)
+	res = GCONV_NOMEM;
+      else
+	{
+	  /* Remember the list of steps.  */
+	  result->steps = steps;
+	  result->nsteps = nsteps;
+
+	  /* Allocate array for the step data.  */
+	  result->data = (struct gconv_step_data *)
+	    calloc (nsteps, sizeof (struct gconv_step_data));
+
+	  if (result->data == NULL)
+	    res = GCONV_NOMEM;
+	  else
+	    {
+	      /* Call all initialization functions for the transformation
+		 step implemenations.  */
+	      struct gconv_step_data *data = result->data;
+
+	      for (cnt = 0; cnt < nsteps; ++cnt)
+		{
+		  /* If this is the last step we must not allocate an output
+		     buffer.  Signal this to the initializer.  */
+		  data[cnt].is_last = cnt == nsteps - 1;
+
+		  if (steps[cnt].init_fct != NULL)
+		    {
+		      res = (steps[cnt].init_fct) (&steps[cnt], &data[cnt]);
+		      if (res != GCONV_OK)
+			break;
+		    }
+		  else
+		    if (!data[cnt].is_last)
+		      {
+			data[cnt].outbufsize = GCONV_DEFAULT_BUFSIZE;
+			data[cnt].outbuf =
+			  (char *) malloc (data[cnt].outbufsize);
+			if (data[cnt].outbuf == NULL)
+			  {
+			    res = GCONV_NOMEM;
+			    break;
+			  }
+			data[cnt].outbufavail = 0;
+		      }
+		}
+	    }
+	}
+    }
+
+  if (res != GCONV_OK)
+    {
+      /* Something went wrong.  Free all the resources.  */
+      int serrno = errno;
+
+      if (result != NULL)
+	{
+	  if (result->data != NULL)
+	    {
+	      while (cnt-- > 0)
+		if (steps[cnt].end_fct != NULL)
+		  (*steps[cnt].end_fct) (&result->data[cnt]);
+		else
+		  {
+		    free (result->data[cnt].outbuf);
+		    if (result->data[cnt].data != NULL)
+		      free (result->data[cnt].data);
+		  }
+
+	      free (result->data);
+	    }
+
+	  free (result);
+	  result = NULL;
+	}
+
+      __gconv_close_transform (steps, nsteps);
+
+      __set_errno (serrno);
+    }
+
+  *handle = result;
+  return res;
+}
--- a/iconv/gconv_simple.c
+++ b/iconv/gconv_simple.c
@ -0,0 +1,240 @@
+/* Simple transformations functions.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <gconv.h>
+#include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
+#include <sys/param.h>
+
+
+int
+__gconv_transform_dummy (struct gconv_step *step, struct gconv_step_data *data,
+			 const char *inbuf, size_t *inlen, size_t *written,
+			 int do_flush)
+{
+  size_t do_write;
+
+  /* We have no stateful encoding.  So we don't have to do anything
+     special.  */
+  if (do_flush)
+    do_write = 0;
+  else
+    {
+      do_write = MIN (*inlen, data->outbufsize - data->outbufavail);
+
+      memcpy (data->outbuf, inbuf, do_write);
+
+      *inlen -= do_write;
+      data->outbufavail += do_write;
+    }
+
+  /* ### TODO Actually, this number must be devided according to the
+     size of the input charset.  I.e., if the input is in UCS4 the
+     number of copied bytes must be divided by 4.  */
+  if (written != NULL)
+    *written = do_write;
+
+  return GCONV_OK;
+}
+
+
+int
+__gconv_transform_init_rstate (struct gconv_step *step,
+			       struct gconv_step_data *data)
+{
+  /* We have to provide the transformation function an correctly initialized
+     object of type `mbstate_t'.  This must be dynamically allocated.  */
+  data->data = calloc (1, sizeof (mbstate_t));
+
+  return data->data == NULL ? GCONV_NOMEM : GCONV_OK;
+}
+
+
+void
+__gconv_transform_end_rstate (struct gconv_step_data *data)
+{
+  if (data->data != NULL)
+    free (data->data);
+}
+
+
+int
+__gconv_transform_ucs4_utf8 (struct gconv_step *step,
+			     struct gconv_step_data *data, const char *inbuf,
+			     size_t *inlen, size_t *written, int do_flush)
+{
+  struct gconv_step *next_step = step + 1;
+  struct gconv_step_data *next_data = data + 1;
+  gconv_fct fct = next_step->fct;
+  size_t do_write;
+  int result;
+
+  /* If the function is called with no input this means we have to reset
+     to the initial state.  The possibly partly converted input is
+     dropped.  */
+  if (do_flush)
+    {
+      /* Clear the state.  */
+      memset (data->data, '\0', sizeof (mbstate_t));
+      do_write = 0;
+
+      /* Call the steps down the chain if there are any.  */
+      if (data->is_last)
+	result = GCONV_OK;
+      else
+	{
+	  struct gconv_step *next_step = step + 1;
+	  struct gconv_step_data *next_data = data + 1;
+
+	  result = (*fct) (next_step, next_data, NULL, 0, written, 1);
+
+	  /* Clear output buffer.  */
+	  data->outbufavail = 0;
+	}
+    }
+  else
+    {
+      do_write = 0;
+
+      do
+	{
+	  const char *newinbuf = inbuf;
+	  size_t actually = __wcsnrtombs (&data->outbuf[data->outbufavail],
+					  (const wchar_t **) &newinbuf,
+					  *inlen / sizeof (wchar_t),
+					  data->outbufsize - data->outbufavail,
+					  (mbstate_t *) data->data);
+
+	  /* Status so far.  */
+	  result = GCONV_EMPTY_INPUT;
+
+	  /* Remember how much we converted.  */
+	  do_write += newinbuf - inbuf;
+	  *inlen -= (newinbuf - inbuf) * sizeof (wchar_t);
+
+	  data->outbufavail += actually;
+	  if (data->outbufavail > 0)
+	    {
+	      /* Call the functions below in the chain.  */
+	      size_t newavail = data->outbufavail;
+
+	      result = (*fct) (next_step, next_data, data->outbuf, &newavail,
+			       written, 0);
+
+	      /* Correct the output buffer.  */
+	      if (newavail != data->outbufavail)
+		{
+		  memmove (data->outbuf,
+			   &data->outbuf[data->outbufavail - newavail],
+			   newavail);
+		  data->outbufavail = newavail;
+		}
+	    }
+	}
+      while (*inlen > 0 && result == GCONV_EMPTY_INPUT);
+    }
+
+  if (written != NULL && data->is_last)
+    *written = do_write / sizeof (wchar_t);
+
+  return result;
+}
+
+
+int
+__gconv_transform_utf8_ucs4 (struct gconv_step *step,
+			     struct gconv_step_data *data, const char *inbuf,
+			     size_t *inlen, size_t *written, int do_flush)
+{
+  struct gconv_step *next_step = step + 1;
+  struct gconv_step_data *next_data = data + 1;
+  gconv_fct fct = next_step->fct;
+  size_t do_write;
+  int result;
+
+  /* If the function is called with no input this means we have to reset
+     to the initial state.  The possibly partly converted input is
+     dropped.  */
+  if (do_flush)
+    {
+      /* Clear the state.  */
+      memset (data->data, '\0', sizeof (mbstate_t));
+      do_write = 0;
+
+      /* Call the steps down the chain if there are any.  */
+      if (data->is_last)
+	result = GCONV_OK;
+      else
+	{
+	  struct gconv_step *next_step = step + 1;
+	  struct gconv_step_data *next_data = data + 1;
+
+	  result = (*fct) (next_step, next_data, NULL, 0, written, 1);
+	}
+    }
+  else
+    {
+      do_write = 0;
+
+      do
+	{
+	  const char *newinbuf = inbuf;
+	  size_t actually = __mbsnrtowcs ((wchar_t *) &data->outbuf[data->outbufavail],
+					  &newinbuf, *inlen,
+					  ((data->outbufsize
+					    - data->outbufavail)
+					   / sizeof (wchar_t)),
+					  (mbstate_t *) data->data);
+
+	  /* Status so far.  */
+	  result = GCONV_EMPTY_INPUT;
+
+	  /* Remember how much we converted.  */
+	  do_write += actually;
+	  *inlen -= newinbuf - inbuf;
+
+	  data->outbufavail += actually * sizeof (wchar_t);
+	  if (data->outbufavail > 0)
+	    {
+	      /* Call the functions below in the chain.  */
+	      size_t newavail = data->outbufavail;
+
+	      result = (*fct) (next_step, next_data, data->outbuf, &newavail,
+			       written, 0);
+
+	      /* Correct the output buffer.  */
+	      if (newavail != data->outbufavail)
+		{
+		  memmove (data->outbuf,
+			   &data->outbuf[data->outbufavail - newavail],
+			   newavail);
+		  data->outbufavail = newavail;
+		}
+	    }
+	}
+      while (*inlen > 0 && result == GCONV_EMPTY_INPUT);
+    }
+
+  if (written != NULL && data->is_last)
+    *written = do_write;
+
+  return GCONV_OK;
+}
--- a/iconv/iconv.c
+++ b/iconv/iconv.c
@ -0,0 +1,38 @@
+/* Convert characters in input buffer using conversion descriptor to
+   output buffer.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <iconv.h>
+#include <gconv.h>
+
+
+size_t
+iconv (iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf,
+       size_t *outbytesleft)
+{
+  gconv_t gcd = (gconv_t) cd;
+  size_t converted;
+
+  if (__gconv (gcd, inbuf, inbytesleft, outbuf, outbytesleft, &converted)
+      != GCONV_OK)
+    return (size_t) -1;
+
+  return converted;
+}
--- a/iconv/iconv.h
+++ b/iconv/iconv.h
@ -0,0 +1,50 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _ICONV_H
+#define _ICONV_H	1
+
+#include <features.h>
+#define __need_size_t
+#include <stddef.h>
+
+
+__BEGIN_DECLS
+
+/* Identifier for conversion method from one codeset to another.  */
+typedef void *iconv_t;
+
+
+/* Allocate descriptor for code conversion from codeset FROMCODE to
+   codeset TOCODE.  */
+extern iconv_t iconv_open __P ((__const char *__tocode,
+				__const char *__fromcode));
+
+/* Convert at most *INBYTESLEFT bytes from *INBUF according to the
+   code conversion algorithm specified by CD and place up to
+   *OUTBYTESLEFT bytes in buffer at *OUTBUF.  */
+extern size_t iconv __P ((iconv_t cd,
+			  __const char **__inbuf, size_t *__inbytesleft,
+			  char **__outbuf, size_t *__outbytesleft));
+
+/* Free resources allocated for descriptor CD for code conversion.  */
+extern int iconv_close __P ((iconv_t __cd));
+
+__END_DECLS
+
+#endif /* iconv.h */
--- a/iconv/iconv_close.c
+++ b/iconv/iconv_close.c
@ -0,0 +1,30 @@
+/* Release any resource associated with given conversion descriptor.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <iconv.h>
+
+#include <gconv.h>
+
+
+int
+iconv_close (iconv_t cd)
+{
+  return __gconv_close ((gconv_t) cd) ? -1 : 0;
+}
--- a/iconv/iconv_open.c
+++ b/iconv/iconv_open.c
@ -0,0 +1,45 @@
+/* Get descriptor for character set conversion.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <iconv.h>
+
+#include <gconv.h>
+
+
+iconv_t
+iconv_open (const char *tocode, const char *fromcode)
+{
+  gconv_t cd;
+  int res;
+
+  res = __gconv_open (tocode, fromcode, &cd);
+
+  if (res != GCONV_OK)
+    {
+      /* We must set the error number according to the specs.  */
+      if (res == GCONV_NOCONV || res == GCONV_NODB)
+	__set_errno (EINVAL);
+
+      return (iconv_t) -1;
+    }
+
+  return (iconv_t) cd;
+}
--- a/include/gconv.h
+++ b/include/gconv.h
@ -0,0 +1 @@
+#include <iconv/gconv.h>
--- a/libc.map
+++ b/libc.map
@ -415,12 +415,15 @@ GLIBC_2.0 {

    _IO_list_all;

+    _IO_stdin_; _IO_stdout_; _IO_stderr_;
+    _IO_fopen; fopen; freopen; _IO_fclose; fclose;
+
  local:
    *;
 };

 GLIBC_2.1 {
  global:
-    _IO_fopen; fopen; _IO_stdin_; _IO_stdout_; _IO_stderr_;
-    freopen;
+    _IO_fopen; fopen; _IO_fclose; fclose;
+    _IO_2_1_stdin_; _IO_2_1_stdout_; _IO_2_1_stderr_;
 } GLIBC_2.0;
--- a/libio/Makefile
+++ b/libio/Makefile
@ -43,7 +43,7 @@ all: # Make this the default target; it will be defined in Rules.
 include ../Makeconfig

 ifeq ($(versioning),yes)
-routines += oldiofopen oldfreopen
+routines += oldiofopen oldiofclose
 endif

 CPPFLAGS-.o += -DIO_DEBUG
@ -62,7 +62,7 @@ ifeq ($(versioning),yes)
 aux	+= oldfileops oldstdfiles
 endif

-shared-only-routines = oldiofopen oldfreopen oldfileops oldstdfiles
+shared-only-routines = oldiofopen oldiofclose oldfileops oldstdfiles

 distribute := iolibio.h libioP.h strfile.h Banner

--- a/libio/freopen.c
+++ b/libio/freopen.c
@ -26,8 +26,13 @@
 #include "libioP.h"
 #include "stdio.h"

+#ifdef PIC
+extern void *_IO_stdin_used;
+weak_extern (_IO_stdin_used);
+#endif
+
 FILE*
-__new_freopen (filename, mode, fp)
+freopen (filename, mode, fp)
     const char* filename;
     const char* mode;
     FILE* fp;
@ -38,9 +43,17 @@ __new_freopen (filename, mode, fp)
    return NULL;
  _IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
  _IO_flockfile (fp);
-  result = _IO_freopen (filename, mode, fp);
+#ifdef PIC
+  if (&_IO_stdin_used == NULL)
+    /* If the shared C library is used by the application binary which
+       was linked against the older version of libio, we just use the
+       older one even for internal use to avoid trouble since a pointer
+       to the old libio may be passed into shared C library and wind
+       up here. */
+    result = _IO_old_freopen (filename, mode, fp);
+  else
+#endif
+    result = _IO_freopen (filename, mode, fp);
  _IO_cleanup_region_end (1);
  return result;
 }
-
-default_symbol_version (__new_freopen, freopen, GLIBC_2.1);
--- a/libio/iofclose.c
+++ b/libio/iofclose.c
@ -29,7 +29,7 @@
 #endif

 int
-_IO_fclose (fp)
+_IO_new_fclose (fp)
     _IO_FILE *fp;
 {
  int status;
@ -53,6 +53,13 @@ _IO_fclose (fp)
  return status;
 }

-#ifdef weak_alias
-weak_alias (_IO_fclose, fclose)
+#ifdef DO_VERSIONING
+strong_alias (_IO_new_fclose, __new_fclose)
+default_symbol_version (_IO_new_fclose, _IO_fclose, GLIBC_2.1);
+default_symbol_version (__new_fclose, fclose, GLIBC_2.1);
+#else
+# ifdef weak_alias
+weak_alias (_IO_new_fclose, _IO_fclose)
+weak_alias (_IO_new_fclose, fclose)
+# endif
 #endif
--- a/libio/iolibio.h
+++ b/libio/iolibio.h
@ -53,7 +53,7 @@ extern int _IO_obstack_printf __P ((struct obstack *, const char *, ...));
 #define _IO_freopen(FILENAME, MODE, FP) \
  (_IO_file_close_it(FP), _IO_file_fopen(FP, FILENAME, MODE, 0))
 #define _IO_old_freopen(FILENAME, MODE, FP) \
-  (_IO_file_close_it(FP), _IO_old_file_fopen(FP, FILENAME, MODE))
+  (_IO_old_file_close_it (FP), _IO_old_file_fopen(FP, FILENAME, MODE))
 #define _IO_freopen64(FILENAME, MODE, FP) \
  (_IO_file_close_it(FP), _IO_file_fopen(FP, FILENAME, MODE, 1))
 #define _IO_fileno(FP) ((FP)->_fileno)
--- a/libio/libio.h
+++ b/libio/libio.h
@ -225,10 +225,18 @@ typedef struct _IO_FILE _IO_FILE;
 #endif

 struct _IO_FILE_complete;
-extern struct _IO_FILE_complete _IO_stdin_, _IO_stdout_, _IO_stderr_;
-#define _IO_stdin ((_IO_FILE*)(&_IO_stdin_))
-#define _IO_stdout ((_IO_FILE*)(&_IO_stdout_))
-#define _IO_stderr ((_IO_FILE*)(&_IO_stderr_))
+extern struct _IO_FILE_complete _IO_2_1_stdin_;
+extern struct _IO_FILE_complete _IO_2_1_stdout_;
+extern struct _IO_FILE_complete _IO_2_1_stderr_;
+#ifndef _LIBC
+#define _IO_stdin ((_IO_FILE*)(&_IO_2_1_stdin_))
+#define _IO_stdout ((_IO_FILE*)(&_IO_2_1_stdout_))
+#define _IO_stderr ((_IO_FILE*)(&_IO_2_1_stderr_))
+#else
+extern _IO_FILE *_IO_stdin;
+extern _IO_FILE *_IO_stdout;
+extern _IO_FILE *_IO_stderr;
+#endif


 /* Define the user-visible type, with user-friendly member names.  */
--- a/libio/libioP.h
+++ b/libio/libioP.h
@ -346,6 +346,9 @@ extern void _IO_flush_all_linebuffered __P ((void));
 #define _IO_do_flush(_f) \
  _IO_do_write(_f, (_f)->_IO_write_base, \
 	       (_f)->_IO_write_ptr-(_f)->_IO_write_base)
+#define _IO_old_do_flush(_f) \
+  _IO_old_do_write(_f, (_f)->_IO_write_base, \
+		   (_f)->_IO_write_ptr-(_f)->_IO_write_base)
 #define _IO_in_put_mode(_fp) ((_fp)->_flags & _IO_CURRENTLY_PUTTING)
 #define _IO_mask_flags(fp, f, mask) \
       ((fp)->_flags = ((fp)->_flags & ~(mask)) | ((f) & (mask)))
--- a/libio/oldfileops.c
+++ b/libio/oldfileops.c
@ -130,7 +130,7 @@ _IO_old_file_close_it (fp)
  if (!_IO_file_is_open (fp))
    return EOF;

-  write_status = _IO_do_flush (fp);
+  write_status = _IO_old_do_flush (fp);

  _IO_unsave_markers(fp);

@ -156,7 +156,7 @@ _IO_old_file_finish (fp, dummy)
 {
  if (_IO_file_is_open (fp))
    {
-      _IO_do_flush (fp);
+      _IO_old_do_flush (fp);
      if (!(fp->_flags & _IO_DELETE_DONT_CLOSE))
 	_IO_SYSCLOSE (fp);
    }
@ -378,14 +378,14 @@ _IO_old_file_overflow (f, ch)
      f->_flags |= _IO_CURRENTLY_PUTTING;
    }
  if (ch == EOF)
-    return _IO_do_flush (f);
+    return _IO_old_do_flush (f);
  if (f->_IO_write_ptr == f->_IO_buf_end ) /* Buffer is really full */
-    if (_IO_do_flush (f) == EOF)
+    if (_IO_old_do_flush (f) == EOF)
      return EOF;
  *f->_IO_write_ptr++ = ch;
  if ((f->_flags & _IO_UNBUFFERED)
      || ((f->_flags & _IO_LINE_BUF) && ch == '\n'))
-    if (_IO_do_flush (f) == EOF)
+    if (_IO_old_do_flush (f) == EOF)
      return EOF;
  return (unsigned char) ch;
 }
@ -401,7 +401,7 @@ _IO_old_file_sync (fp)
  _IO_flockfile (fp);
  /*    char* ptr = cur_ptr(); */
  if (fp->_IO_write_ptr > fp->_IO_write_base)
-    if (_IO_do_flush(fp)) return EOF;
+    if (_IO_old_do_flush(fp)) return EOF;
  delta = fp->_IO_read_ptr - fp->_IO_read_end;
  if (delta != 0)
    {
@ -679,7 +679,7 @@ _IO_old_file_xsputn (f, data, n)
      dont_write = block_size >= 128 ? to_do % block_size : 0;

      count = to_do - dont_write;
-      if (_IO_do_write (f, s, count) == EOF)
+      if (_IO_old_do_write (f, s, count) == EOF)
 	return n - to_do;
      to_do = dont_write;

--- a/libio/oldiofclose.c
+++ b/libio/oldiofclose.c
@ -1,4 +1,4 @@
-/* Copyright (C) 1993, 1995, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1993, 1995, 1997 Free Software Foundation, Inc.
   This file is part of the GNU IO Library.

   This library is free software; you can redistribute it and/or
@ -24,23 +24,35 @@
   General Public License.  */

 #include "libioP.h"
-#include "stdio.h"
+#ifdef __STDC__
+#include <stdlib.h>
+#endif

-FILE*
-__old_freopen (filename, mode, fp)
-     const char* filename;
-     const char* mode;
-     FILE* fp;
+int
+_IO_old_fclose (fp)
+     _IO_FILE *fp;
 {
-  FILE *result;
-  CHECK_FILE (fp, NULL);
-  if (!(fp->_flags & _IO_IS_FILEBUF))
-    return NULL;
+  int status;
+
+  CHECK_FILE(fp, EOF);
+
  _IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
  _IO_flockfile (fp);
-  result = _IO_old_freopen (filename, mode, fp);
+  if (fp->_IO_file_flags & _IO_IS_FILEBUF)
+    status = _IO_old_file_close_it (fp);
+  else
+    status = fp->_flags & _IO_ERR_SEEN ? -1 : 0;
+  _IO_FINISH (fp);
  _IO_cleanup_region_end (1);
-  return result;
+  if (fp != _IO_stdin && fp != _IO_stdout && fp != _IO_stderr)
+    {
+      fp->_IO_file_flags = 0;
+      free(fp);
+    }
+
+  return status;
 }

-symbol_version (__old_freopen, freopen,);
+strong_alias (_IO_old_fclose, __old_fclose)
+symbol_version (_IO_old_fclose, _IO_fclose, GLIBC_2.0);
+symbol_version (__old_fclose, fclose, GLIBC_2.0);
--- a/libio/oldiofopen.c
+++ b/libio/oldiofopen.c
@ -49,7 +49,7 @@ _IO_old_fopen (filename, mode)
 #endif
  _IO_init (&new_f->fp.file, 0);
  _IO_JUMPS (&new_f->fp.file) = &_IO_old_file_jumps;
-  _IO_file_init (&new_f->fp.file);
+  _IO_old_file_init (&new_f->fp.file);
 #if  !_IO_UNIFIED_JUMPTABLES
  new_f->fp.vtable = NULL;
 #endif
@ -61,5 +61,5 @@ _IO_old_fopen (filename, mode)
 }

 strong_alias (_IO_old_fopen, __old_fopen)
-symbol_version (_IO_old_fopen, _IO_fopen,);
-symbol_version (__old_fopen, fopen,);
+symbol_version (_IO_old_fopen, _IO_fopen, GLIBC_2.0);
+symbol_version (__old_fopen, fopen, GLIBC_2.0);
--- a/libio/oldstdfiles.c
+++ b/libio/oldstdfiles.c
@ -36,22 +36,52 @@
 #define DEF_STDFILE(INAME, NAME, FD, CHAIN, FLAGS) \
  static _IO_lock_t _IO_stdfile_##FD##_lock = _IO_lock_initializer; \
  struct _IO_FILE_plus INAME \
-    = {FILEBUF_LITERAL(CHAIN, FLAGS, FD), &_IO_old_file_jumps}; \
-  symbol_version (INAME, NAME,)
+    = {FILEBUF_LITERAL(CHAIN, FLAGS, FD), &_IO_old_file_jumps};
 #else
 #define DEF_STDFILE(INAME, NAME, FD, CHAIN, FLAGS) \
  struct _IO_FILE_plus INAME \
-    = {FILEBUF_LITERAL(CHAIN, FLAGS, FD), &_IO_old_file_jumps}; \
-  symbol_version (INAME, NAME,)
+    = {FILEBUF_LITERAL(CHAIN, FLAGS, FD), &_IO_old_file_jumps};
 #endif

-DEF_STDFILE(_IO_old_stdin_, _IO_stdin_, 0, 0, _IO_NO_WRITES);
-DEF_STDFILE(_IO_old_stdout_, _IO_stdout_, 1, &_IO_stdin_.plus.file,
+DEF_STDFILE(_IO_stdin_, _IO_stdin_, 0, 0, _IO_NO_WRITES);
+DEF_STDFILE(_IO_stdout_, _IO_stdout_, 1, &_IO_stdin_.file,
 	    _IO_NO_READS);
-DEF_STDFILE(_IO_old_stderr_, _IO_stderr_, 2, &_IO_stdout_.plus.file,
+DEF_STDFILE(_IO_stderr_, _IO_stderr_, 2, &_IO_stdout_.file,
            _IO_NO_READS+_IO_UNBUFFERED);

-#if 0
-_IO_FILE *_IO_old_list_all = &_IO_stderr_.plus.file;
-symbol_version (_IO_old_list_all, _IO_list_all,);
+#if defined __GNUC__ && __GNUC__ >= 2
+
+#include <stdio.h>
+
+extern void * _IO_stdin_used;
+weak_extern (_IO_stdin_used);
+
+#undef stdin
+#undef stdout
+#undef stderr
+
+extern FILE *stdin;
+extern FILE *stdout;
+extern FILE *stderr;
+
+extern FILE *_IO_list_all;
+
+static void _IO_check_libio __P ((void)) __attribute__ ((constructor));
+
+/* This function determines which shared C library the application
+   was linked against. We then set up the stdin/stdout/stderr and
+   _IO_list_all accordingly. */
+
+static void
+_IO_check_libio ()
+{
+  if (&_IO_stdin_used == NULL)
+    {
+      /* We are using the old one. */
+      stdin = &_IO_stdin_.file;
+      stdout = &_IO_stdout_.file;
+      stderr = _IO_list_all = &_IO_stderr_.file;
+    }
+}
+
 #endif
--- a/libio/stdfiles.c
+++ b/libio/stdfiles.c
@ -36,22 +36,17 @@
 #define DEF_STDFILE(INAME, NAME, FD, CHAIN, FLAGS) \
  static _IO_lock_t _IO_stdfile_##FD##_lock = _IO_lock_initializer; \
  struct _IO_FILE_complete INAME \
-    = {{FILEBUF_LITERAL(CHAIN, FLAGS, FD), &_IO_file_jumps},}; \
-  default_symbol_version (INAME, NAME, GLIBC_2.1)
+    = {{FILEBUF_LITERAL(CHAIN, FLAGS, FD), &_IO_file_jumps},};
 #else
 #define DEF_STDFILE(INAME, NAME, FD, CHAIN, FLAGS) \
  struct _IO_FILE_complete INAME \
-    = {{FILEBUF_LITERAL(CHAIN, FLAGS, FD), &_IO_file_jumps},}; \
-  default_symbol_version (INAME, NAME, GLIBC_2.1)
+    = {{FILEBUF_LITERAL(CHAIN, FLAGS, FD), &_IO_file_jumps},};
 #endif

-DEF_STDFILE(_IO_new_stdin_, _IO_stdin_, 0, 0, _IO_NO_WRITES);
-DEF_STDFILE(_IO_new_stdout_, _IO_stdout_, 1, &_IO_stdin_.plus.file,
+DEF_STDFILE(_IO_2_1_stdin_, _IO_stdin_, 0, 0, _IO_NO_WRITES);
+DEF_STDFILE(_IO_2_1_stdout_, _IO_stdout_, 1, &_IO_2_1_stdin_.plus.file,
 	    _IO_NO_READS);
-DEF_STDFILE(_IO_new_stderr_, _IO_stderr_, 2, &_IO_stdout_.plus.file,
+DEF_STDFILE(_IO_2_1_stderr_, _IO_stderr_, 2, &_IO_2_1_stdout_.plus.file,
            _IO_NO_READS+_IO_UNBUFFERED);

-_IO_FILE *_IO_list_all = &_IO_stderr_.plus.file;
-#if 0
-default_symbol_version (_IO_new_list_all, _IO_list_all, GLIBC_2.1);
-#endif
+_IO_FILE *_IO_list_all = &_IO_2_1_stderr_.plus.file;
--- a/libio/stdio.c
+++ b/libio/stdio.c
@ -29,6 +29,13 @@
 #undef stdin
 #undef stdout
 #undef stderr
-FILE *stdin = &_IO_stdin_.plus.file;
-FILE *stdout = &_IO_stdout_.plus.file;
-FILE *stderr = &_IO_stderr_.plus.file;
+FILE *stdin = &_IO_2_1_stdin_.plus.file;
+FILE *stdout = &_IO_2_1_stdout_.plus.file;
+FILE *stderr = &_IO_2_1_stderr_.plus.file;
+
+#undef _IO_stdin
+#undef _IO_stdout
+#undef _IO_stderr
+strong_alias (stdin, _IO_stdin);
+strong_alias (stdout, _IO_stdout);
+strong_alias (stderr, _IO_stderr);
--- a/locale/Makefile
+++ b/locale/Makefile
@ -80,8 +80,8 @@ CPPFLAGS := -DLOCALE_PATH='$(localepath)' \
 	    -DLOCSRCDIR='"$(i18ndir)/locales"' -DHAVE_CONFIG_H \
 	    -Iprograms $(CPPFLAGS)

-CFLAGS-charmap.c = -Wno-write-strings
-CFLAGS-locfile.c = -Wno-write-strings
+CFLAGS-charmap.c = -Wno-write-strings -Wno-char-subscripts
+CFLAGS-locfile.c = -Wno-write-strings -Wno-char-subscripts

 # Depend on libc.so so a DT_NEEDED is generated in the shared objects.
 # This ensures they will load libc.so for needed symbols if loaded by
--- a/manual/arith.texi
+++ b/manual/arith.texi
@ -1,5 +1,5 @@
@c We need some definitions here.
-@ifclear cdor
+@ifclear cdot
@ifhtml
@set cdot ·
@end ifhtml
@ -140,6 +140,7 @@ from real values:
@smallexample
 3.0 - _Complex_I * 4.0
@end smallexample
+@end deftypevr

@noindent
 Without an optimizing compiler this is more expensive than the use of
@ -150,6 +151,7 @@ problem.
@deftypevr Macro {const float imaginary} _Imaginary_I
 This macro is a representation of the value ``@math{1i}''.  I.e., it is
 the value for which
+@end deftypevr

@smallexample
 _Imaginary_I * _Imaginary_I = -1
@ -166,7 +168,6 @@ One can use it to easily construct complex number like in
@noindent
 which results in the complex number with a real part of 3.0 and a
 imaginary part -4.0.
-@end deftypevr

@noindent
 A more intuitive approach is to use the following macro.
--- a/math/libm-test.c
+++ b/math/libm-test.c
@ -856,7 +856,8 @@ asin_test (void)
 #endif

  check ("asin (0) == 0", FUNC(asin) (0), 0);
-  check ("asin (0.5) ==  pi/6", FUNC(asin) (0.5), M_PI_6);
+  check_eps ("asin (0.5) ==  pi/6", FUNC(asin) (0.5), M_PI_6,
+	     CHOOSE(3.5e-18, 0, 2e-7));
  check ("asin (1.0) ==  pi/2", FUNC(asin) (1.0), M_PI_2);
 }

@ -1508,7 +1509,7 @@ log1p_test (void)
  check_isinfp ("log1p (+inf) == +inf", FUNC(log1p) (plus_infty));

  check_eps ("log1p (e-1) == 1", FUNC(log1p) (M_E - 1.0), 1,
-	     CHOOSE (1e-18L, 0, 0));
+	     CHOOSE (1e-18L, 0, 6e-8));

 }

@ -1779,7 +1780,7 @@ tan_test (void)
 		   FUNC(tan) (minus_infty), INVALID_EXCEPTION);

  check_eps ("tan (pi/4) == 1", FUNC(tan) (M_PI_4), 1,
-	     CHOOSE (2e-18L, 1e-15L, 0));
+	     CHOOSE (2e-18L, 1e-15L, 2e-7));
 }


@ -4880,26 +4881,31 @@ static void
 inverse_functions (void)
 {
  inverse_func_pair_test ("asin(sin(x)) == x",
-			FUNC(sin), FUNC(asin), 1.0, CHOOSE (2e-18L, 0, 3e-7L));
+			  FUNC(sin), FUNC(asin), 1.0,
+			  CHOOSE (2e-18L, 0, 3e-7L));
  inverse_func_pair_test ("sin(asin(x)) == x",
 			  FUNC(asin), FUNC(sin), 1.0, 0.0);

  inverse_func_pair_test ("acos(cos(x)) == x",
-		       FUNC(cos), FUNC(acos), 1.0, CHOOSE (4e-18L, 1e-15L, 0));
+			  FUNC(cos), FUNC(acos), 1.0,
+			  CHOOSE (4e-18L, 1e-15L, 0));
  inverse_func_pair_test ("cos(acos(x)) == x",
 			  FUNC(acos), FUNC(cos), 1.0, 0.0);
  inverse_func_pair_test ("atan(tan(x)) == x",
 			  FUNC(tan), FUNC(atan), 1.0, CHOOSE (2e-18L, 0, 0));
  inverse_func_pair_test ("tan(atan(x)) == x",
-		       FUNC(atan), FUNC(tan), 1.0, CHOOSE (2e-18L, 1e-15L, 0));
+			  FUNC(atan), FUNC(tan), 1.0,
+			  CHOOSE (2e-18L, 1e-15L, 2e-7));

  inverse_func_pair_test ("asinh(sinh(x)) == x",
 		     FUNC(sinh), FUNC(asinh), 1.0, CHOOSE (1e-18L, 0, 1e-7));
  inverse_func_pair_test ("sinh(asinh(x)) == x",
-			  FUNC(asinh), FUNC(sinh), 1.0, CHOOSE (2e-18L, 0, 0));
+			  FUNC(asinh), FUNC(sinh), 1.0,
+			  CHOOSE (2e-18L, 2e-16L, 2e-7));

  inverse_func_pair_test ("acosh(cosh(x)) == x",
-		FUNC(cosh), FUNC(acosh), 1.0, CHOOSE (1e-18L, 1e-15L, 0));
+			  FUNC(cosh), FUNC(acosh), 1.0,
+			  CHOOSE (1e-18L, 1e-15L, 6e-8));
  inverse_func_pair_test ("cosh(acosh(x)) == x",
 			  FUNC(acosh), FUNC(cosh), 1.0, 0.0);

--- a/md5-crypt/Makefile
+++ b/md5-crypt/Makefile
@ -36,7 +36,7 @@ libcrypt-map := libcrypt.map

 onlymd5-routines := onlymd5-entry md5-crypt md5
 distribute += onlymd5-entry.c
-extra-objs := $(patsubst %,onlymd5-entry%,$(object-suffixes))
+extra-objs = $(patsubst %,onlymd5-entry%,$(object-suffixes))

 include ../Makeconfig

--- a/misc/hsearch_r.c
+++ b/misc/hsearch_r.c
@ -187,6 +187,10 @@ hsearch_r (item, action, retval, htab)
 	  else
 	    idx -= hval2;

+	  /* If we visited all entries leave the loop unsuccessfully.  */
+	  if (idx == hval)
+	    break;
+
            /* If entry is found use it. */
          if (htab->table[idx].used == hval
 	      && strcmp (item.key, htab->table[idx].entry.key) == 0)
--- a/misc/tst-fdset.c
+++ b/misc/tst-fdset.c
@ -42,7 +42,7 @@ main (void)
      fputs (", set", stdout);
      FD_SET (i, &set);
      fputs (", check:", stdout);
-      if (FD_ISSET (i, &set) == 1)
+      if (FD_ISSET (i, &set))
 	fputs ("ok", stdout);
      else
 	{
--- a/nis/nss_compat/compat-grp.c
+++ b/nis/nss_compat/compat-grp.c
@ -29,10 +29,6 @@
 #include <rpcsvc/nis.h>
 #include <nsswitch.h>

-/* Comment out the following line for the production version.  */
-/* #define NDEBUG 1 */
-#include <assert.h>
-
 #include "nss-nisplus.h"
 #include "nisplus-parser.h"

@ -101,10 +97,6 @@ _nss_first_init (void)
 						key, sizeof (key) - 1),
 				       local_dir, len_local_dir + 1)
 		     - grptable) - 1;
-
-      /* *Maybe* (I'm no NIS expert) we have to duplicate the `local_dir'
-	 value since it might change during our work.  So add a test here.  */
-      assert (grptablelen == sizeof (key) + len_local_dir);
    }

  return NSS_STATUS_SUCCESS;
@ -705,7 +697,7 @@ getgrgid_plusgroup (gid_t gid, struct group *result, char *buffer,
  if (use_nisplus) /* Do the NIS+ query here */
    {
      nis_result *res;
-      char buf[1024 + grptablelen];
+      char buf[24 + grptablelen];

      sprintf(buf, "[gid=%d],%s", gid, grptable);
      res = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
@ -727,7 +719,7 @@ getgrgid_plusgroup (gid_t gid, struct group *result, char *buffer,
    }
  else /* Use NIS */
    {
-      char buf[1024];
+      char buf[24];
      char *domain, *outval, *p;
      int outvallen;

--- a/nis/nss_compat/compat-pwd.c
+++ b/nis/nss_compat/compat-pwd.c
@ -30,10 +30,6 @@
 #include <rpcsvc/nis.h>
 #include <nsswitch.h>

-/* Comment out the following line for the production version.  */
-/* #define NDEBUG 1 */
-#include <assert.h>
-
 #include "netgroup.h"
 #include "nss-nisplus.h"
 #include "nisplus-parser.h"
@ -227,10 +223,6 @@ internal_setpwent (ent_t *ent)
 						key, sizeof (key) - 1),
 				       local_dir, len_local_dir + 1)
 		     - pwdtable) - 1;
-
-      /* *Maybe* (I'm no NIS expert) we have to duplicate the `local_dir'
-	 value since it might change during our work.  So add a test here.  */
-      assert (pwdtablelen == sizeof (key) + len_local_dir);
    }

  ent->blacklist.current = 0;
--- a/nis/nss_compat/compat-spwd.c
+++ b/nis/nss_compat/compat-spwd.c
@ -30,10 +30,6 @@
 #include <rpcsvc/nis.h>
 #include <nsswitch.h>

-/* Comment out the following line for the production version.  */
-/* #define NDEBUG 1 */
-#include <assert.h>
-
 #include "netgroup.h"
 #include "nss-nisplus.h"
 #include "nisplus-parser.h"
@ -179,10 +175,6 @@ internal_setspent (ent_t *ent)
 						key, sizeof (key) - 1),
 				       local_dir, len_local_dir + 1)
 		     - pwdtable) - 1;
-
-      /* *Maybe* (I'm no NIS expert) we have to duplicate the `local_dir'
-	 value since it might change during our work.  So add a test here.  */
-      assert (pwdtablelen == sizeof (key) + len_local_dir);
    }

  ent->blacklist.current = 0;
--- a/posix/regex.h
+++ b/posix/regex.h
@ -31,10 +31,10 @@ extern "C" {
 /* POSIX says that <sys/types.h> must be included (by the caller) before
   <regex.h>.  */

-#if !defined (_POSIX_C_SOURCE) && !defined (_POSIX_SOURCE) && defined (VMS)
+#if !defined _POSIX_C_SOURCE && !defined _POSIX_SOURCE && defined VMS
 /* VMS doesn't have `size_t' in <sys/types.h>, even though POSIX says it
   should be there.  */
-#include <stddef.h>
+# include <stddef.h>
 #endif

 /* The following two types have to be signed and unsigned integer type
@ -239,7 +239,7 @@ extern reg_syntax_t re_syntax_options;
   (erroneously) define this in other header files, but we want our
   value, so remove any previous define.  */
 #ifdef RE_DUP_MAX
-#undef RE_DUP_MAX
+# undef RE_DUP_MAX
 #endif
 /* If sizeof(int) == 2, then ((1 << 15) - 1) overflows.  */
 #define RE_DUP_MAX (0x7fff)
@ -313,7 +313,7 @@ typedef enum
   private to the regex routines.  */

 #ifndef RE_TRANSLATE_TYPE
-#define RE_TRANSLATE_TYPE char *
+# define RE_TRANSLATE_TYPE char *
 #endif

 struct re_pattern_buffer
@ -404,7 +404,7 @@ struct re_registers
   `re_match_2' returns information about at least this many registers
   the first time a `regs' structure is passed.  */
 #ifndef RE_NREGS
-#define RE_NREGS 30
+# define RE_NREGS 30
 #endif


@ -427,11 +427,11 @@ typedef struct

 #if __STDC__

-#define _RE_ARGS(args) args
+# define _RE_ARGS(args) args

 #else /* not __STDC__ */

-#define _RE_ARGS(args) ()
+# define _RE_ARGS(args) ()

 #endif /* not __STDC__ */

@ -502,11 +502,11 @@ extern void re_set_registers
             unsigned num_regs, regoff_t *starts, regoff_t *ends));

 #ifdef _REGEX_RE_COMP
-#ifndef _CRAY
+# ifndef _CRAY
 /* 4.2 bsd compatibility.  */
 extern char *re_comp _RE_ARGS ((const char *));
 extern int re_exec _RE_ARGS ((const char *));
-#endif
+# endif
 #endif

 /* POSIX compatibility.  */
--- a/stdio-common/printf_fp.c
+++ b/stdio-common/printf_fp.c
@ -42,7 +42,9 @@
 #include <unistd.h>
 #include <stdlib.h>

-#define NDEBUG			/* Undefine this for debugging assertions.  */
+#ifndef NDEBUG
+# define NDEBUG			/* Undefine this for debugging assertions.  */
+#endif
 #include <assert.h>

 /* This defines make it possible to use the same code for GNU C library and
--- a/stdlib/Makefile
+++ b/stdlib/Makefile
@ -21,7 +21,7 @@
 #
 subdir	:= stdlib

-headers	:= stdlib.h alloca.h monetary.h fmtmsg.h
+headers	:= stdlib.h alloca.h monetary.h fmtmsg.h ucontext.h sys/ucontext.h

 routines	:=							      \
 	atof atoi atol atoll						      \
--- a/stdlib/erand48_r.c
+++ b/stdlib/erand48_r.c
@ -42,12 +42,18 @@ __erand48_r (xsubi, buffer, result)
  temp.ieee.exponent = IEEE754_DOUBLE_BIAS;
  temp.ieee.mantissa0 = (xsubi[2] << 4) | (xsubi[1] >> 12);
  temp.ieee.mantissa1 = ((xsubi[1] & 0xfff) << 20) | (xsubi[0] << 4);
-  /* Please note the lower 4 bits of mantissa1 are always 0.  */
-  *result = temp.d - 1.0;
+#elif USHRT_MAX == 2147483647
+  temp.ieee.negative = 0;
+  temp.ieee.exponent = IEEE754_DOUBLE_BIAS;
+  temp.ieee.mantissa0 = (xsubi[1] << 4) | (xsubi[0] >> 28);
+  temp.ieee.mantissa1 = ((xsubi[0] & 0xfffffff) << 4);
 #else
 # error Unsupported size of short int
 #endif

+  /* Please note the lower 4 bits of mantissa1 are always 0.  */
+  *result = temp.d - 1.0;
+
  return 0;
 }
 weak_alias (__erand48_r, erand48_r)
--- a/string/bits/string2.h
+++ b/string/bits/string2.h
@ -583,7 +583,7 @@ __strspn_c1 (__const char *__s, char __accept)
 # define strstr(haystack, needle) \
  (__extension__ (__builtin_constant_p (needle) && __string2_1bptr_p (needle) \
 		  ? (((__const unsigned char *) (needle))[0] == '\0'	      \
-		     ? haystack						      \
+		     ? (char *) (haystack)				      \
 		     : (((__const unsigned char *) (needle))[1] == '\0'	      \
 			? strchr (haystack,				      \
 				  ((__const unsigned char *) (needle))[0])    \
@ -605,6 +605,47 @@ strnlen (__const char *__string, size_t __maxlen)
 #endif


+#if defined __USE_POSIX || defined __USE_MISC
+# ifndef _HAVE_STRING_ARCH_strtok_r
+#  define strtok_r(s, sep, nextp) \
+  (__extension__ (__builtin_constant_p (sep) && __string2_1bptr_p (sep)	      \
+		  ? (((__const unsigned char *) (sep))[0] != '\0'	      \
+		     && ((__const unsigned char *) (sep))[1] == '\0'	      \
+		     ? __strtok_r_1c (s, ((__const unsigned char *) (sep))[0],\
+				      nextp)				      \
+		     : strtok_r (s, sep, nextp))			      \
+		  : strtok_r (s, sep, nextp)))
+
+__STRING_INLINE char *__strtok_r_1c (char *__s, char __sep, char **__nextp);
+__STRING_INLINE char *
+__strtok_r_1c (char *__s, char __sep, char **__nextp)
+{
+  char *__result;
+  if (__s == NULL)
+    __s = *__nextp;
+  while (*__s == __sep)
+    ++__s;
+  if (*__s == '\0')
+    __result = NULL;
+  else
+    {
+      __result = __s;
+      while (*__s != '\0' && *__s != __sep)
+	++__s;
+      if (*__s == '\0')
+	*__nextp = __s;
+      else
+	{
+	  *__s = '\0';
+	  *__nextp = __s + 1;
+	}
+    }
+  return __result;
+}
+# endif
+#endif
+
+
 #ifdef __USE_BSD
 # ifndef _HAVE_STRING_ARCH_strsep

--- a/sysdeps/alpha/Dist
+++ b/sysdeps/alpha/Dist
@ -1,4 +1,3 @@
-setjmp_aux.c
 divrem.h
 divl.S divq.S reml.S remq.S
 _mcount.S
--- a/sysdeps/arm/sysdep.h
+++ b/sysdeps/arm/sysdep.h
@ -43,13 +43,13 @@

 #endif

-/* ARM 6 needs slightly different handling */
-#ifdef __arm6__
+/* APCS-32 doesn't preserve the condition codes across function call. */
+#ifdef __APCS_32__
 #define LOADREGS(cond, base, reglist...)\
 	ldm##cond	base,reglist
 #define RETINSTR(instr, regs...)\
 	instr	regs
-#else  /* arm 3 */
+#else  /* APCS-26 */
 #define LOADREGS(cond, base, reglist...)\
 	ldm##cond	base,reglist^
 #define RETINSTR(instr, regs...)\
--- a/sysdeps/generic/_G_config.h
+++ b/sysdeps/generic/_G_config.h
@ -9,6 +9,7 @@
 #include <bits/types.h>
 #define __need_size_t
 #define __need_wint_t
+#define __need_NULL
 #include <stddef.h>
 #ifndef _WINT_T
 /* Integral type unchanged by default argument promotions that can
--- a/sysdeps/generic/e_acoshl.c
+++ b/sysdeps/generic/e_acoshl.c
@ -10,5 +10,5 @@ __ieee754_acoshl (long double x)
  return 0.0;
 }

-stub_warning (__ieee754_acoshl)
+stub_warning (acoshl)
 #include <stub-tag.h>
--- a/sysdeps/generic/e_acosl.c
+++ b/sysdeps/generic/e_acosl.c
@ -10,5 +10,5 @@ __ieee754_acosl (long double x)
  return 0.0;
 }

-stub_warning (__ieee754_acosl)
+stub_warning (acosl)
 #include <stub-tag.h>
--- a/sysdeps/generic/e_asinl.c
+++ b/sysdeps/generic/e_asinl.c
@ -10,5 +10,5 @@ __ieee754_asinl (long double x)
  return 0.0;
 }

-stub_warning (__ieee754_asinl)
+stub_warning (asinl)
 #include <stub-tag.h>
--- a/sysdeps/generic/e_atan2l.c
+++ b/sysdeps/generic/e_atan2l.c
@ -10,5 +10,5 @@ __ieee754_atan2l (long double x, long double y)
  return 0.0;
 }

-stub_warning (__ieee754_atan2l)
+stub_warning (atan2l)
 #include <stub-tag.h>
--- a/sysdeps/generic/e_expl.c
+++ b/sysdeps/generic/e_expl.c
@ -10,5 +10,5 @@ __ieee754_expl (long double x)
  return 0.0;
 }

-stub_warning (__ieee754_expl)
+stub_warning (expl)
 #include <stub-tag.h>
--- a/sysdeps/generic/e_fmodl.c
+++ b/sysdeps/generic/e_fmodl.c
@ -10,5 +10,5 @@ __ieee754_fmodl (long double x, long double y)
  return 0.0;
 }

-stub_warning (__ieee754_fmodl)
+stub_warning (fmodl)
 #include <stub-tag.h>
--- a/sysdeps/generic/e_j0l.c
+++ b/sysdeps/generic/e_j0l.c
@ -10,7 +10,7 @@ __ieee754_j0l (long double x)
  return 0.0;
 }

-stub_warning (__ieee754_j0l)
+stub_warning (j0l)

 long double
 __ieee754_y0l (long double x)
@ -20,5 +20,5 @@ __ieee754_y0l (long double x)
  return 0.0;
 }

-stub_warning (__ieee754_y0l)
+stub_warning (y0l)
 #include <stub-tag.h>
--- a/sysdeps/generic/e_j1l.c
+++ b/sysdeps/generic/e_j1l.c
@ -10,7 +10,7 @@ __ieee754_j1l (long double x)
  return 0.0;
 }

-stub_warning (__ieee754_j1l)
+stub_warning (j1l)

 long double
 __ieee754_y1l (long double x)
@ -20,5 +20,5 @@ __ieee754_y1l (long double x)
  return 0.0;
 }

-stub_warning (__ieee754_y1l)
+stub_warning (y1l)
 #include <stub-tag.h>
--- a/sysdeps/generic/e_jnl.c
+++ b/sysdeps/generic/e_jnl.c
@ -10,7 +10,7 @@ __ieee754_jnl (int n, long double x)
  return 0.0;
 }

-stub_warning (__ieee754_jnl)
+stub_warning (jnl)

 long double
 __ieee754_ynl (int n, long double x)
@ -20,5 +20,5 @@ __ieee754_ynl (int n, long double x)
  return 0.0;
 }

-stub_warning (__ieee754_ynl)
+stub_warning (ynl)
 #include <stub-tag.h>
--- a/sysdeps/generic/e_lgammal_r.c
+++ b/sysdeps/generic/e_lgammal_r.c
@ -10,5 +10,6 @@ __ieee754_lgammal_r (long double x, int *signgamp)
  return 0.0;
 }

-stub_warning (__ieee754_lgammal_r)
+stub_warning (lgammal)
+stub_warning (lgammal_r)
 #include <stub-tag.h>
--- a/sysdeps/generic/e_log10l.c
+++ b/sysdeps/generic/e_log10l.c
@ -10,5 +10,5 @@ __ieee754_log10l (long double x)
  return 0.0;
 }

-stub_warning (__ieee754_log10l)
+stub_warning (log10l)
 #include <stub-tag.h>
--- a/sysdeps/generic/e_logl.c
+++ b/sysdeps/generic/e_logl.c
@ -10,5 +10,5 @@ __ieee754_logl (long double x)
  return 0.0;
 }

-stub_warning (__ieee754_logl)
+stub_warning (logl)
 #include <stub-tag.h>
--- a/sysdeps/generic/e_powl.c
+++ b/sysdeps/generic/e_powl.c
@ -10,5 +10,5 @@ __ieee754_powl (long double x, long double y)
  return 0.0;
 }

-stub_warning (__ieee754_powl)
+stub_warning (powl)
 #include <stub-tag.h>
--- a/sysdeps/generic/e_sqrtl.c
+++ b/sysdeps/generic/e_sqrtl.c
@ -10,5 +10,5 @@ __ieee754_sqrtl (long double x)
  return 0.0;
 }

-stub_warning (__ieee754_sqrtl)
+stub_warning (sqrtl)
 #include <stub-tag.h>
--- a/sysdeps/generic/s_exp2l.c
+++ b/sysdeps/generic/s_exp2l.c
@ -3,13 +3,12 @@
 #include <errno.h>

 long double
-__exp2l (long double x)
+__ieee754_exp2l (long double x)
 {
-  fputs ("__exp2l not implemented\n", stderr);
+  fputs ("__ieee754_exp2l not implemented\n", stderr);
  __set_errno (ENOSYS);
  return 0.0;
 }
-weak_alias (__exp2l, exp2l)

 stub_warning (exp2l)
 #include <stub-tag.h>
--- a/sysdeps/libm-i387/i686/s_fdim.S
+++ b/sysdeps/libm-i387/i686/s_fdim.S
@ -0,0 +1,41 @@
+/* Compute positive difference.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fdim)
+	fldl	4(%esp)		// x
+	fldl	12(%esp)	// x : y
+
+	fucomi	%st(1), %st
+	jp	1f
+
+	fsubp	%st(1), %st
+	fldz
+	fcmovnb	%st(1), %st
+	jmp	2f
+
+1:	fucomi	%st(0), %st
+	fcmovu	%st, %st(1)
+2:	fstp	%st(1)
+	ret
+END(__fdim)
+weak_alias (__fdim, fdim)
--- a/sysdeps/libm-i387/i686/s_fdimf.S
+++ b/sysdeps/libm-i387/i686/s_fdimf.S
@ -0,0 +1,41 @@
+/* Compute positive difference.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fdimf)
+	flds	4(%esp)		// x
+	flds	8(%esp)		// x : y
+
+	fucomi	%st(1), %st
+	jp	1f
+
+	fsubp	%st(1), %st
+	fldz
+	fcmovnb	%st(1), %st
+	jmp	2f
+
+1:	fucomi	%st(0), %st
+	fcmovu	%st, %st(1)
+2:	fstp	%st(1)
+	ret
+END(__fdimf)
+weak_alias (__fdimf, fdimf)
--- a/sysdeps/libm-i387/i686/s_fdiml.S
+++ b/sysdeps/libm-i387/i686/s_fdiml.S
@ -0,0 +1,41 @@
+/* Compute positive difference.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fdiml)
+	fldt	4(%esp)		// x
+	fldt	16(%esp)	// x : y
+
+	fucomi	%st(1), %st
+	jp	1f
+
+	fsubp	%st(1), %st
+	fldz
+	fcmovnb	%st(1), %st
+	jmp	2f
+
+1:	fucomi	%st(0), %st
+	fcmovu	%st, %st(1)
+2:	fstp	%st(1)
+	ret
+END(__fdiml)
+weak_alias (__fdiml, fdiml)
--- a/sysdeps/libm-i387/i686/s_fmax.S
+++ b/sysdeps/libm-i387/i686/s_fmax.S
@ -0,0 +1,40 @@
+/* Compute maximum of two numbers, regarding NaN as missing argument.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fmax)
+	fldl	4(%esp)		// x
+	fldl	12(%esp)	// x : y
+
+	fucomi	%st(0), %st
+	fcmovu	%st(1), %st	// now %st contains y if not NaN, x otherwise
+
+	fxch
+
+	fucomi	%st(1), %st
+	fcmovb	%st(1), %st
+
+	fstp	%st(1)
+
+	ret
+END(__fmax)
+weak_alias (__fmax, fmax)
--- a/sysdeps/libm-i387/i686/s_fmaxf.S
+++ b/sysdeps/libm-i387/i686/s_fmaxf.S
@ -0,0 +1,40 @@
+/* Compute maximum of two numbers, regarding NaN as missing argument.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fmaxf)
+	flds	4(%esp)		// x
+	flds	8(%esp)		// x : y
+
+	fucomi	%st(0), %st
+	fcmovu	%st(1), %st	// now %st contains y if not NaN, x otherwise
+
+	fxch
+
+	fucomi	%st(1), %st
+	fcmovb	%st(1), %st
+
+	fstp	%st(1)
+
+	ret
+END(__fmaxf)
+weak_alias (__fmaxf, fmaxf)
--- a/sysdeps/libm-i387/i686/s_fmaxl.S
+++ b/sysdeps/libm-i387/i686/s_fmaxl.S
@ -0,0 +1,40 @@
+/* Compute maximum of two numbers, regarding NaN as missing argument.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fmaxl)
+	fldt	4(%esp)		// x
+	fldt	16(%esp)	// x : y
+
+	fucomi	%st(0), %st
+	fcmovu	%st(1), %st	// now %st contains y if not NaN, x otherwise
+
+	fxch
+
+	fucomi	%st(1), %st
+	fcmovb	%st(1), %st
+
+	fstp	%st(1)
+
+	ret
+END(__fmaxl)
+weak_alias (__fmaxl, fmaxl)
--- a/sysdeps/libm-i387/i686/s_fmin.S
+++ b/sysdeps/libm-i387/i686/s_fmin.S
@ -0,0 +1,38 @@
+/* Compute minimum of two numbers, regarding NaN as missing argument.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fmin)
+	fldl	4(%esp)		// x
+	fldl	12(%esp)	// x : y
+
+	fucomi	%st(0), %st
+	fcmovu	%st(1), %st	// now %st contains y if not NaN, x otherwise
+
+	fucomi	%st(1), %st
+	fcmovb	%st(1), %st
+
+	fstp	%st(1)
+
+	ret
+END(__fmin)
+weak_alias (__fmin, fmin)
--- a/sysdeps/libm-i387/i686/s_fminf.S
+++ b/sysdeps/libm-i387/i686/s_fminf.S
@ -0,0 +1,38 @@
+/* Compute minimum of two numbers, regarding NaN as missing argument.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fminf)
+	flds	4(%esp)		// x
+	flds	8(%esp)		// x : y
+
+	fucomi	%st(0), %st
+	fcmovu	%st(1), %st	// now %st contains y if not NaN, x otherwise
+
+	fucomi	%st(1), %st
+	fcmovb	%st(1), %st
+
+	fstp	%st(1)
+
+	ret
+END(__fminf)
+weak_alias (__fminf, fminf)
--- a/sysdeps/libm-i387/i686/s_fminl.S
+++ b/sysdeps/libm-i387/i686/s_fminl.S
@ -0,0 +1,38 @@
+/* Compute minimum of two numbers, regarding NaN as missing argument.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fminl)
+	fldt	4(%esp)		// x
+	fldt	16(%esp)	// x : y
+
+	fucomi	%st(0), %st
+	fcmovu	%st(1), %st	// now %st contains y if not NaN, x otherwise
+
+	fucomi	%st(1), %st
+	fcmovb	%st(1), %st
+
+	fstp	%st(1)
+
+	ret
+END(__fminl)
+weak_alias (__fminl, fminl)
--- a/sysdeps/libm-i387/s_fdim.S
+++ b/sysdeps/libm-i387/s_fdim.S
@ -0,0 +1,51 @@
+/* Compute positive difference.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fdim)
+	fldl	4(%esp)		// x
+	fldl	12(%esp)	// x : y
+
+	fucom	%st(1)
+	fnstsw
+	sahf
+	jp	1f
+
+	fsubp	%st(1), %st
+	jc	2f
+
+	fstp	%st(0)
+	fldz
+	jmp	2f
+
+1:	fxam
+	fnstsw
+	andb	$0x45, %ah
+	cmpb	$0x01, %ah
+	je	3f
+
+	fxch
+3:	fstp	%st(1)
+
+2:	ret
+END(__fdim)
+weak_alias (__fdim, fdim)
--- a/sysdeps/libm-i387/s_fdimf.S
+++ b/sysdeps/libm-i387/s_fdimf.S
@ -0,0 +1,51 @@
+/* Compute positive difference.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fdimf)
+	flds	4(%esp)		// x
+	flds	8(%esp)		// x : y
+
+	fucom	%st(1)
+	fnstsw
+	sahf
+	jp	1f
+
+	fsubp	%st(1), %st
+	jc	2f
+
+	fstp	%st(0)
+	fldz
+	jmp	2f
+
+1:	fxam
+	fnstsw
+	andb	$0x45, %ah
+	cmpb	$0x01, %ah
+	je	3f
+
+	fxch
+3:	fstp	%st(1)
+
+2:	ret
+END(__fdimf)
+weak_alias (__fdimf, fdimf)
--- a/sysdeps/libm-i387/s_fdiml.S
+++ b/sysdeps/libm-i387/s_fdiml.S
@ -0,0 +1,51 @@
+/* Compute positive difference.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fdiml)
+	fldt	4(%esp)		// x
+	fldt	16(%esp)	// x : y
+
+	fucom	%st(1)
+	fnstsw
+	sahf
+	jp	1f
+
+	fsubp	%st(1), %st
+	jc	2f
+
+	fstp	%st(0)
+	fldz
+	jmp	2f
+
+1:	fxam
+	fnstsw
+	andb	$0x45, %ah
+	cmpb	$0x01, %ah
+	je	3f
+
+	fxch
+3:	fstp	%st(1)
+
+2:	ret
+END(__fdiml)
+weak_alias (__fdiml, fdiml)
--- a/sysdeps/libm-i387/s_fmax.S
+++ b/sysdeps/libm-i387/s_fmax.S
@ -0,0 +1,44 @@
+/* Compute maximum of two numbers, regarding NaN as missing argument.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fmax)
+	fldl	12(%esp)	// y
+	fxam
+	fnstsw
+	fldl	4(%esp)		// y : x
+
+	andb	$0x45, %ah
+	cmpb	$0x01, %ah
+	je	1f		// y == NaN
+
+	fucom	%st(1)
+	fnstsw
+	sahf
+	jnc	1f
+
+	fxch	%st(1)
+1:	fstp	%st(1)
+
+	ret
+END(__fmax)
+weak_alias (__fmax, fmax)
--- a/sysdeps/libm-i387/s_fmaxf.S
+++ b/sysdeps/libm-i387/s_fmaxf.S
@ -0,0 +1,44 @@
+/* Compute maximum of two numbers, regarding NaN as missing argument.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fmaxf)
+	flds	8(%esp)		// y
+	fxam
+	fnstsw
+	flds	4(%esp)		// y : x
+
+	andb	$0x45, %ah
+	cmpb	$0x01, %ah
+	je	1f		// y == NaN
+
+	fucom	%st(1)
+	fnstsw
+	sahf
+	jnc	1f
+
+	fxch	%st(1)
+1:	fstp	%st(1)
+
+	ret
+END(__fmaxf)
+weak_alias (__fmaxf, fmaxf)
--- a/sysdeps/libm-i387/s_fmaxl.S
+++ b/sysdeps/libm-i387/s_fmaxl.S
@ -0,0 +1,44 @@
+/* Compute maximum of two numbers, regarding NaN as missing argument.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fmaxl)
+	fldt	16(%esp)	// y
+	fxam
+	fnstsw
+	fldt	4(%esp)		// y : x
+
+	andb	$0x45, %ah
+	cmpb	$0x01, %ah
+	je	1f		// y == NaN
+
+	fucom	%st(1)
+	fnstsw
+	sahf
+	jnc	1f
+
+	fxch	%st(1)
+1:	fstp	%st(1)
+
+	ret
+END(__fmaxl)
+weak_alias (__fmaxl, fmaxl)
--- a/sysdeps/libm-i387/s_fmin.S
+++ b/sysdeps/libm-i387/s_fmin.S
@ -0,0 +1,44 @@
+/* Compute minimum of two numbers, regarding NaN as missing argument.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fmin)
+	fldl	4(%esp)		// x
+	fldl	12(%esp)	// x : y
+
+	fxam
+	fnstsw
+	andb	$0x45, %ah
+	cmpb	$0x01, %ah
+	je	1f		// y == NaN
+
+	fucom	%st(1)
+	fnstsw
+	sahf
+	jc	2f
+
+1:	fxch	%st(1)
+2:	fstp	%st(1)
+
+	ret
+END(__fmin)
+weak_alias (__fmin, fmin)
--- a/sysdeps/libm-i387/s_fminf.S
+++ b/sysdeps/libm-i387/s_fminf.S
@ -0,0 +1,44 @@
+/* Compute minimum of two numbers, regarding NaN as missing argument.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fminf)
+	flds	4(%esp)		// x
+	flds	8(%esp)		// x : y
+
+	fxam
+	fnstsw
+	andb	$0x45, %ah
+	cmpb	$0x01, %ah
+	je	1f		// y == NaN
+
+	fucom	%st(1)
+	fnstsw
+	sahf
+	jc	2f
+
+1:	fxch	%st(1)
+2:	fstp	%st(1)
+
+	ret
+END(__fminf)
+weak_alias (__fminf, fminf)
--- a/sysdeps/libm-i387/s_fminl.S
+++ b/sysdeps/libm-i387/s_fminl.S
@ -0,0 +1,44 @@
+/* Compute minimum of two numbers, regarding NaN as missing argument.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__fminl)
+	fldt	4(%esp)		// x
+	fldt	16(%esp)	// x : y
+
+	fxam
+	fnstsw
+	andb	$0x45, %ah
+	cmpb	$0x01, %ah
+	je	1f		// y == NaN
+
+	fucom	%st(1)
+	fnstsw
+	sahf
+	jc	2f
+
+1:	fxch	%st(1)
+2:	fstp	%st(1)
+
+	ret
+END(__fminl)
+weak_alias (__fminl, fminl)
--- a/sysdeps/libm-ieee754/s_ilogb.c
+++ b/sysdeps/libm-ieee754/s_ilogb.c
@ -37,7 +37,7 @@ static char rcsid[] = "$NetBSD: s_ilogb.c,v 1.9 1995/05/10 20:47:28 jtc Exp $";
 	if(hx<0x00100000) {
 	    GET_LOW_WORD(lx,x);
 	    if((hx|lx)==0)
-		return 0x80000001;	/* ilogb(0) = 0x80000001 */
+		return FP_ILOGB0;	/* ilogb(0) = FP_ILOGB0 */
 	    else			/* subnormal x */
 		if(hx==0) {
 		    for (ix = -1043; lx>0; lx<<=1) ix -=1;
@ -47,7 +47,7 @@ static char rcsid[] = "$NetBSD: s_ilogb.c,v 1.9 1995/05/10 20:47:28 jtc Exp $";
 	    return ix;
 	}
 	else if (hx<0x7ff00000) return (hx>>20)-1023;
-	else return 0x7fffffff;
+	else return FP_ILOGBNAN;
 }
 weak_alias (__ilogb, ilogb)
 #ifdef NO_LONG_DOUBLE
--- a/sysdeps/libm-ieee754/s_ilogbf.c
+++ b/sysdeps/libm-ieee754/s_ilogbf.c
@ -8,7 +8,7 @@
 *
 * Developed at SunPro, a Sun Microsystems, Inc. business.
 * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice 
+ * software is freely granted, provided that this notice
 * is preserved.
 * ====================================================
 */
@ -32,13 +32,13 @@ static char rcsid[] = "$NetBSD: s_ilogbf.c,v 1.4 1995/05/10 20:47:31 jtc Exp $";
 	GET_FLOAT_WORD(hx,x);
 	hx &= 0x7fffffff;
 	if(hx<0x00800000) {
-	    if(hx==0) 
-		return 0x80000001;	/* ilogb(0) = 0x80000001 */
+	    if(hx==0)
+		return FP_ILOGB0;	/* ilogb(0) = FP_ILOGB0 */
 	    else			/* subnormal x */
 	        for (ix = -126,hx<<=8; hx>0; hx<<=1) ix -=1;
 	    return ix;
 	}
 	else if (hx<0x7f800000) return (hx>>23)-127;
-	else return 0x7fffffff;
+	else return FP_ILOGBNAN;
 }
 weak_alias (__ilogbf, ilogbf)
--- a/sysdeps/libm-ieee754/s_ilogbl.c
+++ b/sysdeps/libm-ieee754/s_ilogbl.c
@ -41,7 +41,7 @@ static char rcsid[] = "$NetBSD: $";
 	if(es==0) {
 	    GET_LDOUBLE_WORDS(es,hx,lx,x);
 	    if((hx|lx)==0)
-		return 0x80000001;	/* ilogbl(0) = 0x80000001 */
+		return FP_ILOGB0;	/* ilogbl(0) = FP_ILOGB0 */
 	    else			/* subnormal x */
 		if(hx==0) {
 		    for (ix = -16415; lx>0; lx<<=1) ix -=1;
@ -51,6 +51,6 @@ static char rcsid[] = "$NetBSD: $";
 	    return ix;
 	}
 	else if (es<0x7fff) return es-0x3fff;
-	else return 0x7fffffff;
+	else return FP_ILOGBNAN;
 }
 weak_alias (__ilogbl, ilogbl)
--- a/sysdeps/libm-ieee754/s_llrintf.c
+++ b/sysdeps/libm-ieee754/s_llrintf.c
@ -34,17 +34,17 @@ long long int
 __llrintf (float x)
 {
  int32_t j0;
-  u_int32_t i, i0;
+  u_int32_t i0;
  volatile float w;
  float t;
  long long int result;
  int sx;

-  GET_FLOAT_WORD (i, x);
+  GET_FLOAT_WORD (i0, x);

  sx = i0 >> 31;
  j0 = ((i0 >> 23) & 0xff) - 0x7f;
-  i0 = i & 0x7fffff;
+  i0 &= 0x7fffff;
  i0 |= 0x800000;

  if (j0 < (int32_t) (sizeof (long long int) * 8) - 1)
@ -57,10 +57,10 @@ __llrintf (float x)
 	{
 	  w = two23[sx] + x;
 	  t = w - two23[sx];
-	  GET_FLOAT_WORD (i, t);
-	  i0 = i & 0x7fffff;
-	  i0 |= 0x800000;
+	  GET_FLOAT_WORD (i0, t);
 	  j0 = ((i0 >> 23) & 0xff) - 0x7f;
+	  i0 &= 0x7fffff;
+	  i0 |= 0x800000;

 	  result = i0 >> (23 - j0);
 	}
--- a/sysdeps/libm-ieee754/s_lrint.c
+++ b/sysdeps/libm-ieee754/s_lrint.c
@ -34,7 +34,7 @@ long int
 __lrint (double x)
 {
  int32_t j0;
-  u_int32_t i0,i1,i;
+  u_int32_t i0,i1;
  volatile double w;
  double t;
  long int result;
@ -55,9 +55,9 @@ __lrint (double x)
 	  w = two52[sx] + x;
 	  t = w - two52[sx];
 	  EXTRACT_WORDS (i0, i1, t);
-	  i0 = i & 0xfffff;
-	  i0 |= 0x100000;
 	  j0 = ((i0 >> 20) & 0x7ff) - 0x3ff;
+	  i0 &= 0xfffff;
+	  i0 |= 0x100000;

 	  result = i0 >> (20 - j0);
 	}
@ -71,9 +71,9 @@ __lrint (double x)
 	  w = two52[sx] + x;
 	  t = w - two52[sx];
 	  EXTRACT_WORDS (i0, i1, t);
-	  i0 = i & 0xfffff;
-	  i0 |= 0x100000;
 	  j0 = ((i0 >> 20) & 0x7ff) - 0x3ff;
+	  i0 &= 0xfffff;
+	  i0 |= 0x100000;

 	  result = ((long int) i0 << (j0 - 20)) | (i1 >> (52 - j0));
 	}
--- a/sysdeps/libm-ieee754/s_lrintf.c
+++ b/sysdeps/libm-ieee754/s_lrintf.c
@ -34,17 +34,17 @@ long int
 __lrintf (float x)
 {
  int32_t j0;
-  u_int32_t i, i0;
+  u_int32_t i0;
  volatile float w;
  float t;
  long int result;
  int sx;

-  GET_FLOAT_WORD (i, x);
+  GET_FLOAT_WORD (i0, x);

  sx = i0 >> 31;
  j0 = ((i0 >> 23) & 0xff) - 0x7f;
-  i0 = i & 0x7fffff;
+  i0 &= 0x7fffff;
  i0 |= 0x800000;

  if (j0 < (int32_t) (sizeof (long int) * 8) - 1)
@ -57,10 +57,10 @@ __lrintf (float x)
 	{
 	  w = two23[sx] + x;
 	  t = w - two23[sx];
-	  GET_FLOAT_WORD (i, t);
-	  i0 = i & 0x7fffff;
-	  i0 |= 0x800000;
+	  GET_FLOAT_WORD (i0, t);
 	  j0 = ((i0 >> 23) & 0xff) - 0x7f;
+	  i0 &= 0x7fffff;
+	  i0 |= 0x800000;

 	  result = i0 >> (23 - j0);
 	}
--- a/sysdeps/libm-ieee754/s_nanf.c
+++ b/sysdeps/libm-ieee754/s_nanf.c
@ -35,6 +35,6 @@ __nanf (const char *tagp)
      return strtof (buf, NULL);
    }

-  return NANF;
+  return NAN;
 }
 weak_alias (__nanf, nanf)
--- a/Show More
+++ b/Show More