Update.cvs/libc-ud-971118cvs/libc-ud-971117

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.

1 files changed, 420 insertions, 0 deletions

diff --git a/iconv/gconv_conf.c b/iconv/gconv_conf.c
new file mode 100644
index 0000000..d3c13d7
--- /dev/null
+++ 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);
+}