Update.cvs/libc-ud-970819

1997-08-20 05:30  Ulrich Drepper  <drepper@cygnus.com>

	* catgets/catgets.c (catclose): Use __munmap instead of munmap.
	* catgets/gencat.c (read_input_file): Fix typo.

	* dirent/dirent.h: Make seekdir and telldir available for __USE_XOPEN.

	* elf/dl-load.c: Fix case of missing DT_RPATH in object which gets
	executed (e.g., when it is a static binary).

	* intl/bindtextdomain.c: Use strdup in glibc.  Correct comment.
	* intl/dcgettext.c: Likewise.
	* intl/dgettext.c: Likewise.
	* intl/explodename.c: Likewise.
	* intl/finddomain.c: Likewise.
	* intl/gettext.c: Likewise.
	* intl/gettext.h: Likewise.
	* intl/hash-string.h: Likewise.
	* intl/l10nflist.c: Likewise.
	* intl/libintl.h: Likewise.
	* intl/loadinfo.h: Likewise.
	* intl/loadmsgcat.c: Likewise.
	* intl/localealias.c: Likewise.
	* intl/textdomain.c: Likewise.

	Unify libio sources with code in libg++.
	* libio/fcloseall.c: Update and reformat copyright.  Protect use
	of weak_alias.  Use _IO_* thread macros instead of __libc_*.
	* libio/feof.c: Likewise.
	* libio/feof_u.c: Likewise.
	* libio/ferror.c: Likewise.
	* libio/ferror_u.c: Likewise.
	* libio/fgetc.c: Likewise.
	* libio/filedoalloc.c: Likewise.
	* libio/fileno.c: Likewise.
	* libio/fileops.c: Likewise.
	* libio/fputc.c: Likewise.
	* libio/fputc_u.c: Likewise.
	* libio/freopen.c: Likewise.
	* libio/fseek.c: Likewise.
	* libio/genops.c: Likewise.
	* libio/getc.c: Likewise.
	* libio/getc_u.c: Likewise.
	* libio/getchar.c: Likewise.
	* libio/getchar_u.c: Likewise.
	* libio/iofclose.c: Likewise.
	* libio/iofdopen.c: Likewise.
	* libio/iofflush.c: Likewise.
	* libio/iofflush_u.c: Likewise.
	* libio/iofgetpos.c: Likewise.
	* libio/iofgets.c: Likewise.
	* libio/iofopen.c: Likewise.
	* libio/iofopncook.c: Likewise.
	* libio/iofprintf.c: Likewise.
	* libio/iofputs.c: Likewise.
	* libio/iofread.c: Likewise.
	* libio/iofsetpos.c: Likewise.
	* libio/ioftell.c: Likewise.
	* libio/iofwrite.c: Likewise.
	* libio/iogetdelim.c: Likewise.
	* libio/iogetline.c: Likewise.
	* libio/iogets.c: Likewise.
	* libio/iopadn.c: Likewise.
	* libio/iopopen.c: Likewise.
	* libio/ioputs.c: Likewise.
	* libio/ioseekoff.c: Likewise.
	* libio/ioseekpos.c: Likewise.
	* libio/iosetbuffer.c: Likewise.
	* libio/iosetvbuf.c: Likewise.
	* libio/iosprintf.c: Likewise.
	* libio/ioungetc.c: Likewise.
	* libio/iovdprintf.c: Likewise.
	* libio/iovsprintf.c: Likewise.
	* libio/iovsscanf.c: Likewise.
	* libio/libio.h: Likewise.
	* libio/libioP.h: Likewise.
	* libio/obprintf.c: Likewise.
	* libio/pclose.c: Likewise.
	* libio/peekc.c: Likewise.
	* libio/putc.c: Likewise.
	* libio/putchar.c: Likewise.
	* libio/rewind.c: Likewise.
	* libio/setbuf.c: Likewise.
	* libio/setlinebuf.c: Likewise.
	* libio/stdfiles.c: Likewise.
	* libio/stdio.c: Likewise.
	* libio/strfile.h: Likewise.
	* libio/strops.c: Likewise.
	* libio/vasprintf.c: Likewise.
	* libio/vscanf.c: Likewise.
	* libio/vsnprintf.c: Likewise.

	* manual/libc.texinfo: Add menu entries for chapter on message
	translation.
	* manual/locale.texi: Correct next entry in @node for new chapter.
	* manual/search.texi: Likewise for previous link.
	* manual/message.texi: New file.
	* manual/startup.texi: Document LC_ALL, LC_MESSAGES, NLSPATH,
	setenv, unsetenv, and clearenv.
	* manual/string.texi: Fix typos.  Patch by Jim Meyering.

	* math/Makefile (test-longdouble-yes): Enable.  We want long double
	tests now.

	Crusade against strcat.
	* nis/nss_nisplus/nisplus-publickey.c: Remove uses of strcat.
	* stdlib/canonicalize.c: Likewise.

	* posix/glob.h: Define __const if necessary.  Use __const in all
	prototypes.

	* sysdeps/generic/stpcpy.c: Use K&R form to allow use in other
	GNU packages.

	* posix/wordexp.c: Completely reworked buffer handling for much
	better performance.  Patch by Tim Waugh.

	* socket/sys/sochet.h (getpeername): Fix type of LEN parameter,
	it must be socklen_t.

	* sysdeps/libm-i387/e_remainder.S: Pretty print.
	* sysdeps/libm-i387/e_remainderf.S: Likewise.
	* sysdeps/libm-i387/e_remainderl.S: Pop extra value for FPU stack.
	* sysdeps/libm-i387/s_cexp.S: Little optimization.
	* sysdeps/libm-i387/s_cexpl.S: Likewise.
	* sysdep/libm-ieee754/s_csinhl.c: Include <fenv.h>.

1997-08-18 15:21  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/if_index.c (if_nameindex): Fix memory leak
	in cleanup code.

1997-08-17  Paul Eggert  <eggert@twinsun.com>

	* tzset.c (__tzset_internal): Fix memory leak when the user
	specifies a TZ value that uses a default rule file.
	Do not assume US DST rules when the user specifies
	that there is no DST.

1997-08-10 19:17  Philip Blundell  <Philip.Blundell@pobox.com>

	* inet/getnameinfo.c: Tidy up.
	* sysdeps/posix/getaddrinfo.c: Likewise.

	* sysdeps/unix/sysv/linux/if_index.c (if_nametoindex): Return 0 if
	using stub code.
	(if_indextoname): Use SIOGIFNAME ioctl if the kernel supports it.
	(if_nameindex): Use alloca() rather than malloc(); use
	SIOCGIFCOUNT ioctl if the kernel supports it.

1997-08-16  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/sys/mount.h: Remove the IS_* macros,
	they operate on internal kernel structures and have no place in a
	user header.

1997-08-16  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makerules (lib%.so): Depend on $(+preinit) and $(+postinit).
	(build-shlib): Filter them out of $^.

1997-08-15  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/dl-error.c (_dl_signal_error): Fix error message.

1997-08-16 04:06  Ulrich Drepper  <drepper@cygnus.com>

	* assert/assert.h [__USE_GNU]: Undefine assert_perror.
	Reported by Theodore C. Belding <Ted.Belding@umich.edu>.

1997-08-13  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makeconfig: Change object suffixes from *.[spgb]o to *.o[spgb]
	to avoid conflict with PO files.
	* Makerules: Likewise.
	* Rules: Likewise.
	* elf/Makefile: Likewise.
	* extra-lib.mk: Likewise.
	* gmon/Makefile: Likewise.
	* nis/Makefile: Likewise.
	* nss/Makefile: Likewise.
	* resolv/Makefile: Likewise.
	* rpm/Makefile: Likewise.
	* sunrpc/Makefile: Likewise.
	* sysdeps/sparc/elf/Makefile: Likewise.
	* sysdeps/sparc64/elf/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/sparc/Makefile: Likewise.
	(ASFLAGS-.os): Renamed from as-FLAGS.os.

14 files changed, 117 insertions, 43 deletions

diff --git a/intl/bindtextdom.c b/intl/bindtextdom.c
index b8f22b6c5d..0540d1e162 100644
--- a/intl/bindtextdom.c
+++ b/intl/bindtextdom.c
@@ -2,7 +2,7 @@
    Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
 
    This file is part of the GNU C Library.  Its master source is NOT part of
-   the C library, however.  The master source lives in /gd/gnu/lib.
+   the C library, however.
 
    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
@@ -65,6 +65,7 @@ extern struct binding *_nl_domain_bindings;
    prefix.  So we have to make a difference here.  */
 #ifdef _LIBC
 # define BINDTEXTDOMAIN __bindtextdomain
+# define strdup(str) __strdup (str)
 #else
 # define BINDTEXTDOMAIN bindtextdomain__
 #endif
@@ -102,25 +103,36 @@ BINDTEXTDOMAIN (domainname, dirname)
 
   if (binding != NULL)
     {
-      /* The domain is already bound.  Replace the old binding.  */
-      char *new_dirname;
-
-      if (strcmp (dirname, _nl_default_dirname) == 0)
-	new_dirname = (char *) _nl_default_dirname;
-      else
+      /* The domain is already bound.  If the new value and the old
+	 one are equal we simply do nothing.  Otherwise replace the
+	 old binding.  */
+      if (strcmp (dirname, binding->dirname) != 0)
 	{
-	  size_t len = strlen (dirname) + 1;
-	  new_dirname = (char *) malloc (len);
-	  if (new_dirname == NULL)
-	    return NULL;
+	  char *new_dirname;
+
+	  if (strcmp (dirname, _nl_default_dirname) == 0)
+	    new_dirname = (char *) _nl_default_dirname;
+	  else
+	    {
+#if defined _LIBC || defined HAVE_STRDUP
+	      new_dirname = strdup (dirname);
+	      if (new_dirname == NULL)
+		return NULL;
+#else
+	      size_t len = strlen (dirname) + 1;
+	      new_dirname = (char *) malloc (len);
+	      if (new_dirname == NULL)
+		return NULL;
 
-	  memcpy (new_dirname, dirname, len);
-	}
+	      memcpy (new_dirname, dirname, len);
+#endif
+	    }
 
-      if (strcmp (binding->dirname, _nl_default_dirname) != 0)
-        free (binding->dirname);
+	  if (binding->dirname != _nl_default_dirname)
+	    free (binding->dirname);
 
-      binding->dirname = new_dirname;
+	  binding->dirname = new_dirname;
+	}
     }
   else
     {
@@ -132,21 +144,33 @@ BINDTEXTDOMAIN (domainname, dirname)
       if (new_binding == NULL)
 	return NULL;
 
+#if defined _LIBC || defined HAVE_STRDUP
+      new_binding->domainname = strdup (domainname);
+      if (new_binding->domainname == NULL)
+	return NULL;
+#else
       len = strlen (domainname) + 1;
       new_binding->domainname = (char *) malloc (len);
       if (new_binding->domainname == NULL)
-	  return NULL;
+	return NULL;
       memcpy (new_binding->domainname, domainname, len);
+#endif
 
       if (strcmp (dirname, _nl_default_dirname) == 0)
 	new_binding->dirname = (char *) _nl_default_dirname;
       else
 	{
+#if defined _LIBC || defined HAVE_STRDUP
+	  new_binding->dirname = strdup (dirname);
+	  if (new_binding->dirname == NULL)
+	    return NULL;
+#else
 	  len = strlen (dirname) + 1;
 	  new_binding->dirname = (char *) malloc (len);
 	  if (new_binding->dirname == NULL)
 	    return NULL;
 	  memcpy (new_binding->dirname, dirname, len);
+#endif
 	}
 
       /* Now enqueue it.  */
diff --git a/intl/dcgettext.c b/intl/dcgettext.c
index 152acef9a1..c7540053b2 100644
--- a/intl/dcgettext.c
+++ b/intl/dcgettext.c
@@ -2,7 +2,7 @@
    Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
 
    This file is part of the GNU C Library.  Its master source is NOT part of
-   the C library, however.  The master source lives in /gd/gnu/lib.
+   the C library, however.
 
    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
@@ -298,10 +298,6 @@ DCGETTEXT (domainname, msgid, category)
 	  return (char *) msgid;
 	}
 
-      /* We don't want libintl.a to depend on any other library.  So
-	 we avoid the non-standard function stpcpy.  In GNU C Library
-	 this function is available, though.  Also allow the symbol
-	 HAVE_STPCPY to be defined.  */
       stpcpy (stpcpy (strchr (dirname, '\0'), "/"), binding->dirname);
     }
 
@@ -312,10 +308,7 @@ DCGETTEXT (domainname, msgid, category)
   xdomainname = (char *) alloca (strlen (categoryname)
 				 + strlen (domainname) + 5);
   ADD_BLOCK (block_list, xdomainname);
-  /* We don't want libintl.a to depend on any other library.  So we
-     avoid the non-standard function stpcpy.  In GNU C Library this
-     function is available, though.  Also allow the symbol HAVE_STPCPY
-     to be defined.  */
+
   stpcpy (stpcpy (stpcpy (stpcpy (xdomainname, categoryname), "/"),
 		  domainname),
 	  ".mo");
diff --git a/intl/dgettext.c b/intl/dgettext.c
index b63e083162..f7899579f7 100644
--- a/intl/dgettext.c
+++ b/intl/dgettext.c
@@ -2,7 +2,7 @@
    Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
 
    This file is part of the GNU C Library.  Its master source is NOT part of
-   the C library, however.  The master source lives in /gd/gnu/lib.
+   the C library, however.
 
    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
diff --git a/intl/explodename.c b/intl/explodename.c
index e938ff234b..ce5b06b288 100644
--- a/intl/explodename.c
+++ b/intl/explodename.c
@@ -2,7 +2,7 @@
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
 
    This file is part of the GNU C Library.  Its master source is NOT part of
-   the C library, however.  The master source lives in /gd/gnu/lib.
+   the C library, however.
 
    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
diff --git a/intl/finddomain.c b/intl/finddomain.c
index 27163a6f66..c1ab68bfed 100644
--- a/intl/finddomain.c
+++ b/intl/finddomain.c
@@ -3,7 +3,7 @@
    Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
 
    This file is part of the GNU C Library.  Its master source is NOT part of
-   the C library, however.  The master source lives in /gd/gnu/lib.
+   the C library, however.
 
    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
@@ -146,12 +146,18 @@ _nl_find_domain (dirname, locale, domainname)
   alias_value = _nl_expand_alias (locale);
   if (alias_value != NULL)
     {
+#if defined _LIBC || defined HAVE_STRDUP
+      locale = strdup (alias_value);
+      if (locale == NULL)
+	return NULL;
+#else
       size_t len = strlen (alias_value) + 1;
       locale = (char *) malloc (len);
       if (locale == NULL)
 	return NULL;
 
       memcpy (locale, alias_value, len);
+#endif
     }
 
   /* Now we determine the single parts of the locale name.  First
diff --git a/intl/gettext.c b/intl/gettext.c
index a08bd11d8a..d4687ceb24 100644
--- a/intl/gettext.c
+++ b/intl/gettext.c
@@ -2,7 +2,7 @@
    Copyright (C) 1995, 1997 Free Software Foundation, Inc.
 
    This file is part of the GNU C Library.  Its master source is NOT part of
-   the C library, however.  The master source lives in /gd/gnu/lib.
+   the C library, however.
 
    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
diff --git a/intl/gettext.h b/intl/gettext.h
index 8d5c121234..804b219ee2 100644
--- a/intl/gettext.h
+++ b/intl/gettext.h
@@ -2,7 +2,7 @@
    Copyright (C) 1995, 1997 Free Software Foundation, Inc.
 
    This file is part of the GNU C Library.  Its master source is NOT part of
-   the C library, however.  The master source lives in /gd/gnu/lib.
+   the C library, however.
 
    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
diff --git a/intl/hash-string.h b/intl/hash-string.h
index 7212eb0254..8b675c10e4 100644
--- a/intl/hash-string.h
+++ b/intl/hash-string.h
@@ -2,7 +2,7 @@
    Copyright (C) 1995, 1997 Free Software Foundation, Inc.
 
    This file is part of the GNU C Library.  Its master source is NOT part of
-   the C library, however.  The master source lives in /gd/gnu/lib.
+   the C library, however.
 
    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
diff --git a/intl/l10nflist.c b/intl/l10nflist.c
index bda2105ac7..640b932b01 100644
--- a/intl/l10nflist.c
+++ b/intl/l10nflist.c
@@ -2,7 +2,7 @@
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
 
    This file is part of the GNU C Library.  Its master source is NOT part of
-   the C library, however.  The master source lives in /gd/gnu/lib.
+   the C library, however.
 
    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
diff --git a/intl/libintl.h b/intl/libintl.h
index 86b44650e8..2c8e8a49eb 100644
--- a/intl/libintl.h
+++ b/intl/libintl.h
@@ -1,10 +1,10 @@
-/* libintl.h -- Message catalogs for internationalization.
-   Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+/* Message catalogs for internationalization.
+   Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
    This file is derived from the file libgettext.h in the GNU gettext package.
 
    This file is part of the GNU C Library.  Its master source is NOT part of
-   the C library, however.  The master source lives in /gd/gnu/lib.
+   the C library, however.
 
    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
@@ -71,8 +71,8 @@ extern char *__bindtextdomain __P ((__const char *__domainname,
 #if defined __OPTIMIZE__
 
 /* We need NULL for `gettext'.  */
-#define __need_NULL
-#include <stddef.h>
+# define __need_NULL
+# include <stddef.h>
 
 /* We need LC_MESSAGES for `dgettext'.  */
 # include <locale.h>
diff --git a/intl/loadinfo.h b/intl/loadinfo.h
index c67c2eb2e8..274066764c 100644
--- a/intl/loadinfo.h
+++ b/intl/loadinfo.h
@@ -1,3 +1,22 @@
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+   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 PARAMS
 # if __STDC__
 #  define PARAMS(args) args
diff --git a/intl/loadmsgcat.c b/intl/loadmsgcat.c
index 3fe8f69cdd..f4352d00eb 100644
--- a/intl/loadmsgcat.c
+++ b/intl/loadmsgcat.c
@@ -2,7 +2,7 @@
    Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
 
    This file is part of the GNU C Library.  Its master source is NOT part of
-   the C library, however.  The master source lives in /gd/gnu/lib.
+   the C library, however.
 
    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
diff --git a/intl/localealias.c b/intl/localealias.c
index 4547873414..99fcfa511f 100644
--- a/intl/localealias.c
+++ b/intl/localealias.c
@@ -2,7 +2,7 @@
    Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
 
    This file is part of the GNU C Library.  Its master source is NOT part of
-   the C library, however.  The master source lives in /gd/gnu/lib.
+   the C library, however.
 
    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
@@ -82,6 +82,12 @@ void free ();
    because some ANSI C functions will require linking with this object
    file and the name space must not be polluted.  */
 # define strcasecmp __strcasecmp
+# define strdup __strdup
+
+/* We need locking here since we can be called from different palces.  */
+# include <libc-lock.h>
+
+__libc_lock_define_initialized (static, lock);
 #endif
 
 
@@ -146,8 +152,13 @@ _nl_expand_alias (name)
 {
   static const char *locale_alias_path = LOCALE_ALIAS_PATH;
   struct alias_map *retval;
+  const char *result = NULL;
   size_t added;
 
+#ifdef _LIBC
+  __libc_lock_lock (lock);
+#endif
+
   do
     {
       struct alias_map item;
@@ -165,7 +176,10 @@ _nl_expand_alias (name)
 
       /* We really found an alias.  Return the value.  */
       if (retval != NULL)
-	return retval->value;
+	{
+	  result = retval->value;
+	  break;
+	}
 
       /* Perhaps we can find another alias file.  */
       added = 0;
@@ -186,7 +200,11 @@ _nl_expand_alias (name)
     }
   while (added != 0);
 
-  return NULL;
+#ifdef _LIBC
+  __libc_lock_unlock (lock);
+#endif
+
+  return result;
 }
 
 
@@ -274,7 +292,15 @@ read_alias_file (fname, fname_len)
 	      if (nmap >= maxmap)
 		extend_alias_table ();
 
-	      /* We cannot depend on strdup available in the libc.  Sigh!  */
+#if defined _LIBC || defined HAVE_STRDUP
+	       map[nmap].alias = strdup (alias);
+	       map[nmap].value = strdup (value);
+	       if (map[nmap].alias == NULL || map[nmap].value == NULL)
+		{
+		  FREE_BLOCKS (block_list);
+		  return added;
+		}
+#else
 	      len = strlen (alias) + 1;
 	      tp = (char *) malloc (len);
 	      if (tp == NULL)
@@ -294,6 +320,7 @@ read_alias_file (fname, fname_len)
 		}
 	      memcpy (tp, value, len);
 	      map[nmap].value = tp;
+#endif
 
 	      ++nmap;
 	      ++added;
diff --git a/intl/textdomain.c b/intl/textdomain.c
index bad9d166c0..116419dd12 100644
--- a/intl/textdomain.c
+++ b/intl/textdomain.c
@@ -57,6 +57,7 @@ extern const char *_nl_current_default_domain;
    prefix.  So we have to make a difference here.  */
 #ifdef _LIBC
 # define TEXTDOMAIN __textdomain
+# define strdup(str) __strdup (str)
 #else
 # define TEXTDOMAIN textdomain__
 #endif
@@ -85,11 +86,15 @@ TEXTDOMAIN (domainname)
       /* If the following malloc fails `_nl_current_default_domain'
 	 will be NULL.  This value will be returned and so signals we
 	 are out of core.  */
+#if defined _LIBC || defined HAVE_STRDUP
+      _nl_current_default_domain = strdup (domainname);
+#else
       size_t len = strlen (domainname) + 1;
       char *cp = (char *) malloc (len);
       if (cp != NULL)
 	memcpy (cp, domainname, len);
       _nl_current_default_domain = cp;
+#endif
     }
 
   if (old != _nl_default_default_domain)