Update.

2000-02-27  Ulrich Drepper  <drepper@redhat.com>

	* conform/conformtest.pl (@headers): Add wordexp.h, wctype.h, wchar.h,
	varargs.h, utmpx.h, utime.h, unistd.h, ulimit.h, ucontext.h, time.h,
	termios.h, tar.h, sys/wait.h, sys/uio.h, sys/types.h, sys/times.h,
	sys/timeb.h, sys/time.h, sys/statvfs.h, sys/stat.h, sys/shm.h,
	sys/sem.h, and sys/resource.h.
	Implement handling of allow-header.
	* conform/data/fcntl.h-data: Correct various bugs.
	* conform/data/fnmatch.h-data: Likewise.
	* conform/data/math.h-data: Likewise.
	* conform/data/ndbm.h-data: Likewise.
	* conform/data/nl_types.h-data: Likewise.
	* conform/data/poll.h-data: Likewise.
	* conform/data/pthread.h-data: Likewise.
	* conform/data/semaphore.h-data: Likewise.
	* conform/data/setjmp.h-data: Likewise.
	* conform/data/signal.h-data: Likewise.
	* conform/data/stdarg.h-data: Likewise.
	* conform/data/stddef.h-data: Likewise.
	* conform/data/stdio.h-data: Likewise.
	* conform/data/stdlib.h-data: Likewise.
	* conform/data/string.h-data: Likewise.
	* conform/data/strings.h-data: Likewise.
	* conform/data/stropts.h-data: Likewise.
	* conform/data/syslog.h-data: Likewise.
	* conform/data/sys/ipc.h-data: Likewise.
	* conform/data/sys/mman.h-data: Likewise.
	* conform/data/sys/msg.h-data: Likewise.
	* conform/data/tar.h-data: New file.
	* conform/data/termios.h-data: New file.
	* conform/data/time.h-data: New file.
	* conform/data/ucontext.h-data: New file.
	* conform/data/ulimit.h-data: New file.
	* conform/data/unistd.h-data: New file.
	* conform/data/utime.h-data: New file.
	* conform/data/utmpx.h-data: New file.
	* conform/data/varargs.h-data: New file.
	* conform/data/wchar.h-data: New file.
	* conform/data/wctype.h-data: New file.
	* conform/data/wordexp.h-data: New file.
	* conform/data/sys/resource.h-data: New file.
	* conform/data/sys/sem.h-data: New file.
	* conform/data/sys/shm.h-data: New file.
	* conform/data/sys/stat.h-data: New file.
	* conform/data/sys/statvfs.h-data: New file.
	* conform/data/sys/time.h-data: New file.
	* conform/data/sys/timeb.h-data: New file.
	* conform/data/sys/times.h-data: New file.
	* conform/data/sys/types.h-data: New file.
	* conform/data/sys/uio.h-data: New file.
	* conform/data/sys/wait.h-data: New file.

	* grp/grp.h (getgrent_r): Declare only if __USE_GNU.

	* include/sys/time.h (__itimes): Fix type of second parameter.

	* io/sys/stat.h (S_IFLNK): Define also if __USE_XOPEN.
	(S_ISVTX): Likewise.

	* io/sys/statvfs.h: Define fsblkcnt_t and fsfilcnt_t.

	* locale/langindo.h: Make ERA_YEAR, INT_CURR_SYMBOL, CURRENCY_SYMBOL,
	MON_DECIMAL_POINT, MON_THOUSANDS_SEP, MON_GROUPING, POSITIVE_SIGN,
	NEGATIVE_SIGN, INT_FRAC_DIGITS, FRAC_DIGITS, P_CS_PRECEDES,
	P_SEP_BY_SPACE, N_CS_PRECEDES, N_SEP_BY_SPACE, P_SIGN_POSN,
	N_SIGN_POSN, DECIMAL_POINT, THOUSANDS_SEP, GROUPING, YESEXPR,
	NOEXPR, YESSTR, and NOSTR only available if __USE_GNU.

	* math/bits/mathcalls.h: Don't declare tgamma and scalbn if only
	__USE_XOPEN.

	* posix/unistd.h: Don't define ptrdiff_t.
	(sbrk): Correct type of parameter.
	* sysdeps/generic/sbrk.c: Likewise.
	* sysdeps/mach/hurd/sbrk.c: Likewise.

	* posix/sys/types.h: Allow id_t, suseconds_t, fsblkcnt_t, and
	fsfilcnt_t being defined elsewhere.

	* resource/sys/resource.h: Define id_t.
	If __USE_XOPEN use int for type of first parameter if getrlimit,
	getrlimit64, setrlimit, setrlimit64, getrusage, getpriority, and
	setpriority.
	* sysdeps/generic/getpriority.c: Fix type of second parameter.
	* sysdeps/generic/setpriority.c: Likewise.
	* sysdeps/mach/hurd/getpriority.c: Likewise.
	* sysdeps/mach/hurd/setpriority.c: Likewise.
	* sysdeps/unix/sysv/irix4/getpriority.c: Likewise.
	* sysdeps/unix/sysv/irix4/setpriority.c: Likewise.
	* sysdeps/unix/sysv/linux/getpriority.c: Likewise.

	* sysdeps/generic/utimes.c: Fix parameter of third parameter.
	* sysdeps/mach/hurd/utimes.c: Likewise.
	* sysdeps/posix/utimes.c: Likewise.

	* sysdeps/generic/bits/shm.h: Define shmatt_t type and use it in
	struct shmid_ds definition.
	* sysdeps/gnu/bits/shm.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/shm.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/shm.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/shm.h: Likewise.

	* sysvipc/sys/shm.h: Define time_t.

	* sysvipc/sys/sem.h (struct sembuf): Make sem_num field unsigned.

	* sysdeps/gnu/bits/sem.h: Rename anonymous type struct sem_queue and
	struct sem_undo to struct __sem_queue and struct __sem_undo resp.

	* time/time.h: Define suseconds_t if not already done.

	* sysdeps/unix/sysv/linux/bits/statvfs.h: Rename f_spare to __f_spare.
	* sysdeps/unix/sysv/linux/fstatvfs64.c: Likewise.
	* sysdeps/unix/sysv/linux/statvfs64.c: Likewise.
	* sysdeps/unix/sysv/linux/internal_statvfs.c: Likewise.

	* intl/bindtextdom.c: Use rwlock to avoid surprising results in
	multithreaded applications.
	* intl/dcigettext.c: Likewise.
	* intl/textdomain.c: Likewise.
	* intl/*.c: Update copyright.
	* sysdeps/generic/bits/libc-lock.h: Define __libc_rwlock_* stubs.

2000-02-27  Andreas Jaeger  <aj@suse.de>

	* sysdeps/unix/sysv/linux/configure.in: Treat also "/usr/" as
	prefix especially.

2000-02-27  Ulrich Drepper  <drepper@redhat.com>

	* po/de.po: Update from translation team.
	* po/ko.po: Likewise.

18 files changed, 157 insertions, 143 deletions

diff --git a/intl/bindtextdom.c b/intl/bindtextdom.c
index be78ae0..dde7eb1 100644
--- a/intl/bindtextdom.c
+++ b/intl/bindtextdom.c
@@ -1,8 +1,5 @@
 /* Implementation of the bindtextdomain(3) function
-   Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
-
-   This file is part of the GNU C Library.  Its master source is NOT part of
-   the C library, however.
+   Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
 
    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
@@ -50,6 +47,16 @@ void free ();
 #include "gettext.h"
 #include "gettextP.h"
 
+#ifdef _LIBC
+/* We have to handle multi-threaded applications.  */
+# include <bits/libc-lock.h>
+#else
+/* Provide dummy implementation if this is outside glibc.  */
+# define __libc_lock_define_initialized (CLASS, NAME)
+# define __libc_lock_lock(NAME)
+# define __libc_lock_unlock(NAME)
+#endif
+
 /* @@ end of prolog @@ */
 
 /* Contains the default location of the message catalogs.  */
@@ -58,6 +65,9 @@ extern const char _nl_default_dirname[];
 /* List with bindings of specific domains.  */
 extern struct binding *_nl_domain_bindings;
 
+/* Lock variable to protect the global data in the gettext implementation.  */
+__libc_rwlock_define (extern, _nl_state_lock)
+
 
 /* Names for the libintl functions are a problem.  They must not clash
    with existing names and they should follow ANSI C.  But this source
@@ -80,11 +90,14 @@ BINDTEXTDOMAIN (domainname, dirname)
      const char *dirname;
 {
   struct binding *binding;
+  char *result;
 
   /* Some sanity checks.  */
   if (domainname == NULL || domainname[0] == '\0')
     return NULL;
 
+  __libc_rwlock_wrlock (_nl_state_lock);
+
   for (binding = _nl_domain_bindings; binding != NULL; binding = binding->next)
     {
       int compare = strcmp (domainname, binding->domainname);
@@ -101,104 +114,97 @@ BINDTEXTDOMAIN (domainname, dirname)
 
   if (dirname == NULL)
     /* The current binding has be to returned.  */
-    return binding == NULL ? (char *) _nl_default_dirname : binding->dirname;
-
-  if (binding != NULL)
+    result = binding == NULL ? (char *) _nl_default_dirname : binding->dirname;
+  else if (binding != NULL)
     {
       /* 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)
+      result = binding->dirname;
+      if (strcmp (dirname, result) != 0)
 	{
-	  char *new_dirname;
-
 	  if (strcmp (dirname, _nl_default_dirname) == 0)
-	    new_dirname = (char *) _nl_default_dirname;
+	    result = (char *) _nl_default_dirname;
 	  else
 	    {
 #if defined _LIBC || defined HAVE_STRDUP
-	      new_dirname = strdup (dirname);
-	      if (new_dirname == NULL)
-		return NULL;
+	      result = strdup (dirname);
 #else
 	      size_t len = strlen (dirname) + 1;
-	      new_dirname = (char *) malloc (len);
-	      if (new_dirname == NULL)
-		return NULL;
-
-	      memcpy (new_dirname, dirname, len);
+	      result = (char *) malloc (len);
+	      if (result != NULL)
+		memcpy (result, dirname, len);
 #endif
 	    }
 
-	  if (binding->dirname != _nl_default_dirname)
-	    free (binding->dirname);
+	  if (result != NULL)
+	    {
+	      if (binding->dirname != _nl_default_dirname)
+		free (binding->dirname);
 
-	  binding->dirname = new_dirname;
+	      binding->dirname = result;
+	    }
 	}
     }
   else
     {
       /* We have to create a new binding.  */
-#if !defined _LIBC && !defined HAVE_STRDUP
-      size_t len;
-#endif
+      size_t len = strlen (domainname) + 1;
       struct binding *new_binding =
-	(struct binding *) malloc (sizeof (*new_binding));
+	(struct binding *) malloc (sizeof (*new_binding) + len);
 
       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;
-      memcpy (new_binding->domainname, domainname, len);
-#endif
-
-      if (strcmp (dirname, _nl_default_dirname) == 0)
-	new_binding->dirname = (char *) _nl_default_dirname;
+	result = NULL;
       else
 	{
+	  memcpy (new_binding->domainname, domainname, len);
+
+	  if (strcmp (dirname, _nl_default_dirname) == 0)
+	    result = 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;
+	      result = new_binding->dirname = strdup (dirname);
 #else
-	  len = strlen (dirname) + 1;
-	  new_binding->dirname = (char *) malloc (len);
-	  if (new_binding->dirname == NULL)
-	    return NULL;
-	  memcpy (new_binding->dirname, dirname, len);
+	      len = strlen (dirname) + 1;
+	      result = new_binding->dirname = (char *) malloc (len);
+	      if (result != NULL)
+		memcpy (new_binding->dirname, dirname, len);
 #endif
+	    }
 	}
 
-      /* Now enqueue it.  */
-      if (_nl_domain_bindings == NULL
-	  || strcmp (domainname, _nl_domain_bindings->domainname) < 0)
-	{
-	  new_binding->next = _nl_domain_bindings;
-	  _nl_domain_bindings = new_binding;
-	}
-      else
+      if (result != NULL)
 	{
-	  binding = _nl_domain_bindings;
-	  while (binding->next != NULL
-		 && strcmp (domainname, binding->next->domainname) > 0)
-	    binding = binding->next;
+	  /* Now enqueue it.  */
+	  if (_nl_domain_bindings == NULL
+	      || strcmp (domainname, _nl_domain_bindings->domainname) < 0)
+	    {
+	      new_binding->next = _nl_domain_bindings;
+	      _nl_domain_bindings = new_binding;
+	    }
+	  else
+	    {
+	      binding = _nl_domain_bindings;
+	      while (binding->next != NULL
+		     && strcmp (domainname, binding->next->domainname) > 0)
+		binding = binding->next;
 
-	  new_binding->next = binding->next;
-	  binding->next = new_binding;
+	      new_binding->next = binding->next;
+	      binding->next = new_binding;
+	    }
 	}
-
-      binding = new_binding;
+      else if (new_binding != NULL)
+	free (new_binding);
     }
 
-  return binding->dirname;
+  /* For a succesful call we flush the caches.  */
+  if (result != NULL)
+    ++_nl_msg_cat_cntr;
+
+  __libc_rwlock_unlock (_nl_state_lock);
+
+  return result;
 }
 
 #ifdef _LIBC
diff --git a/intl/dcgettext.c b/intl/dcgettext.c
index 5be8e4f..8115d5c 100644
--- a/intl/dcgettext.c
+++ b/intl/dcgettext.c
@@ -1,9 +1,6 @@
 /* Implementation of the dcgettext(3) function.
    Copyright (C) 1995-1999, 2000 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 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
diff --git a/intl/dcigettext.c b/intl/dcigettext.c
index e11fd06..be312ce 100644
--- a/intl/dcigettext.c
+++ b/intl/dcigettext.c
@@ -1,9 +1,6 @@
 /* Implementation of the internal dcigettext function.
    Copyright (C) 1995-1999, 2000 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 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
@@ -99,6 +96,11 @@ void free ();
 /* Thread safetyness.  */
 #ifdef _LIBC
 # include <bits/libc-lock.h>
+#else
+/* Provide dummy implementation if this is outside glibc.  */
+# define __libc_lock_define_initialized (CLASS, NAME)
+# define __libc_lock_lock(NAME)
+# define __libc_lock_unlock(NAME)
 #endif
 
 /* @@ end of prolog @@ */
@@ -306,6 +308,9 @@ struct block_list
 # define DCIGETTEXT dcigettext__
 #endif
 
+/* Lock variable to protect the global data in the gettext implementation.  */
+__libc_rwlock_define_initialized (, _nl_state_lock)
+
 /* Checking whether the binaries runs SUID must be done and glibc provides
    easier methods therefore we make a difference here.  */
 #ifdef _LIBC
@@ -358,6 +363,8 @@ DCIGETTEXT (domainname, msgid1, msgid2, plural, n, category)
   if (msgid1 == NULL)
     return NULL;
 
+  __libc_rwlock_rdlock (_nl_state_lock);
+
 #if defined HAVE_TSEARCH || defined _LIBC
   if (plural == 0)
     {
@@ -372,7 +379,10 @@ DCIGETTEXT (domainname, msgid1, msgid2, plural, n, category)
 
       foundp = (struct known_translation_t **) tfind (search, &root, transcmp);
       if (foundp != NULL && (*foundp)->counter == _nl_msg_cat_cntr)
-	return (char *) (*foundp)->translation;
+	{
+	  __libc_rwlock_unlock (_nl_state_lock);
+	  return (char *) (*foundp)->translation;
+	}
     }
 #endif
 
@@ -501,6 +511,7 @@ DCIGETTEXT (domainname, msgid1, msgid2, plural, n, category)
 	  || strcmp (single_locale, "POSIX") == 0)
 	{
 	  FREE_BLOCKS (block_list);
+	  __libc_rwlock_unlock (_nl_state_lock);
 	  __set_errno (saved_errno);
 	  return (plural == 0
 		  ? (char *) msgid1
@@ -539,7 +550,10 @@ DCIGETTEXT (domainname, msgid1, msgid2, plural, n, category)
 	      foundp = (struct known_translation_t **) tfind (search, &root,
 							      transcmp);
 	      if (foundp != NULL && (*foundp)->counter == _nl_msg_cat_cntr)
-		return (char *) (*foundp)->translation;
+		{
+		  __libc_rwlock_unlock (_nl_state_lock);
+		  return (char *) (*foundp)->translation;
+		}
 	    }
 #endif
 
@@ -596,6 +610,7 @@ DCIGETTEXT (domainname, msgid1, msgid2, plural, n, category)
 		  (*foundp)->translation = retval;
 		}
 #endif
+	      __libc_rwlock_unlock (_nl_state_lock);
 	      return retval;
 	    }
 	}
@@ -981,12 +996,9 @@ free_mem (void)
   struct binding *runp;
 
   for (runp = _nl_domain_bindings; runp != NULL; runp = runp->next)
-    {
-      free (runp->domainname);
-      if (runp->dirname != _nl_default_dirname)
-	/* Yes, this is a pointer comparison.  */
-	free (runp->dirname);
-    }
+    if (runp->dirname != _nl_default_dirname)
+      /* Yes, this is a pointer comparison.  */
+      free (runp->dirname);
 
   if (_nl_current_default_domain != _nl_default_default_domain)
     /* Yes, again a pointer comparison.  */
diff --git a/intl/dcngettext.c b/intl/dcngettext.c
index ef1dc34..d10f4a6 100644
--- a/intl/dcngettext.c
+++ b/intl/dcngettext.c
@@ -1,9 +1,6 @@
 /* Implementation of the dcngettext(3) function.
    Copyright (C) 1995-1999, 2000 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 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
diff --git a/intl/dgettext.c b/intl/dgettext.c
index f789957..85770d2 100644
--- a/intl/dgettext.c
+++ b/intl/dgettext.c
@@ -1,8 +1,5 @@
 /* Implementation of the dgettext(3) function.
-   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.
+   Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
 
    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/dngettext.c b/intl/dngettext.c
index 2fb861c..0501446 100644
--- a/intl/dngettext.c
+++ b/intl/dngettext.c
@@ -1,9 +1,6 @@
 /* Implementation of the dngettext(3) function.
    Copyright (C) 1995, 1996, 1997, 2000 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 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
diff --git a/intl/explodename.c b/intl/explodename.c
index 8fe928f..f89c7c9 100644
--- a/intl/explodename.c
+++ b/intl/explodename.c
@@ -1,9 +1,6 @@
-/* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
    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 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
diff --git a/intl/finddomain.c b/intl/finddomain.c
index 7f6d35c..09f6a91 100644
--- a/intl/finddomain.c
+++ b/intl/finddomain.c
@@ -1,10 +1,7 @@
 /* Handle list of needed message catalogs
-   Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1995-1999, 2000 Free Software Foundation, Inc.
    Written by Ulrich Drepper <drepper@gnu.org>, 1995.
 
-   This file is part of the GNU C Library.  Its master source is NOT part of
-   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
    published by the Free Software Foundation; either version 2 of the
diff --git a/intl/gettext.c b/intl/gettext.c
index 74eab14..c9ba112 100644
--- a/intl/gettext.c
+++ b/intl/gettext.c
@@ -1,9 +1,6 @@
 /* Implementation of gettext(3) function.
    Copyright (C) 1995, 1997, 2000 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 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
diff --git a/intl/gettext.h b/intl/gettext.h
index 804b219..a8bd7b5 100644
--- a/intl/gettext.h
+++ b/intl/gettext.h
@@ -1,8 +1,5 @@
 /* Internal header for GNU gettext internationalization functions.
-   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.
+   Copyright (C) 1995, 1997, 2000 Free Software Foundation, Inc.
 
    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/gettextP.h b/intl/gettextP.h
index d210dc6..26d9de0 100644
--- a/intl/gettextP.h
+++ b/intl/gettextP.h
@@ -136,8 +136,12 @@ struct loaded_domain
 struct binding
 {
   struct binding *next;
-  char *domainname;
   char *dirname;
+#ifdef __GNUC__
+  char domainname[0];
+#else
+  char domainname[1];
+#endif
 };
 
 extern int _nl_msg_cat_cntr;
diff --git a/intl/hash-string.h b/intl/hash-string.h
index 32ca018..107514c 100644
--- a/intl/hash-string.h
+++ b/intl/hash-string.h
@@ -1,8 +1,5 @@
 /* Implements a string hashing function.
-   Copyright (C) 1995, 1997, 1998 Free Software Foundation, Inc.
-
-   This file is part of the GNU C Library.  Its master source is NOT part of
-   the C library, however.
+   Copyright (C) 1995, 1997, 1998, 2000 Free Software Foundation, Inc.
 
    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 871b428..ef59936 100644
--- a/intl/l10nflist.c
+++ b/intl/l10nflist.c
@@ -1,9 +1,6 @@
-/* Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1995-1999, 2000 Free Software Foundation, Inc.
    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 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
diff --git a/intl/libintl.h b/intl/libintl.h
index a301dc5..91e7326 100644
--- a/intl/libintl.h
+++ b/intl/libintl.h
@@ -2,9 +2,6 @@
    Copyright (C) 1995-1999, 2000 Free Software Foundation, Inc.
    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 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
diff --git a/intl/loadmsgcat.c b/intl/loadmsgcat.c
index b017d71..a03fe0d 100644
--- a/intl/loadmsgcat.c
+++ b/intl/loadmsgcat.c
@@ -1,9 +1,6 @@
 /* Load needed message catalogs.
    Copyright (C) 1995-1999, 2000 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 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
diff --git a/intl/localealias.c b/intl/localealias.c
index 9f2c510..d2b5ae8 100644
--- a/intl/localealias.c
+++ b/intl/localealias.c
@@ -1,8 +1,5 @@
 /* Handle aliases for locale names.
-   Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
-
-   This file is part of the GNU C Library.  Its master source is NOT part of
-   the C library, however.
+   Copyright (C) 1995-1999, 2000 Free Software Foundation, Inc.
 
    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/ngettext.c b/intl/ngettext.c
index 99e74d9..3ffdc69 100644
--- a/intl/ngettext.c
+++ b/intl/ngettext.c
@@ -1,9 +1,6 @@
 /* Implementation of ngettext(3) function.
    Copyright (C) 1995, 1997, 2000 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 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
diff --git a/intl/textdomain.c b/intl/textdomain.c
index 5dd4003..726b5bb 100644
--- a/intl/textdomain.c
+++ b/intl/textdomain.c
@@ -1,8 +1,5 @@
 /* Implementation of the textdomain(3) function.
-   Copyright (C) 1995, 1996, 1997, 1998 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.
+   Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
 
    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
@@ -41,6 +38,18 @@
 #else
 # include "libgettext.h"
 #endif
+#include "gettext.h"
+#include "gettextP.h"
+
+#ifdef _LIBC
+/* We have to handle multi-threaded applications.  */
+# include <bits/libc-lock.h>
+#else
+/* Provide dummy implementation if this is outside glibc.  */
+# define __libc_lock_define_initialized (CLASS, NAME)
+# define __libc_lock_lock(NAME)
+# define __libc_lock_unlock(NAME)
+#endif
 
 /* @@ end of prolog @@ */
 
@@ -64,6 +73,9 @@ extern const char *_nl_current_default_domain;
 # define TEXTDOMAIN textdomain__
 #endif
 
+/* Lock variable to protect the global data in the gettext implementation.  */
+__libc_rwlock_define (extern, _nl_state_lock)
+
 /* Set the current default message catalog to DOMAINNAME.
    If DOMAINNAME is null, return the current default.
    If DOMAINNAME is "", reset to the default of "messages".  */
@@ -71,38 +83,60 @@ char *
 TEXTDOMAIN (domainname)
      const char *domainname;
 {
-  char *old;
+  char *new_domain;
+  char *old_domain;
 
   /* A NULL pointer requests the current setting.  */
   if (domainname == NULL)
     return (char *) _nl_current_default_domain;
 
-  old = (char *) _nl_current_default_domain;
+  __libc_rwlock_wrlock (_nl_state_lock);
+
+  old_domain = (char *) _nl_current_default_domain;
 
   /* If domain name is the null string set to default domain "messages".  */
   if (domainname[0] == '\0'
       || strcmp (domainname, _nl_default_default_domain) == 0)
-    _nl_current_default_domain = _nl_default_default_domain;
+    {
+      _nl_current_default_domain = _nl_default_default_domain;
+      new_domain = (char *) _nl_current_default_domain;
+    }
+  else if (strcmp (domainname, old_domain) == 0)
+    /* This can happen and people will use it to signal that some
+       environment variable changed.  */
+    new_domain = old_domain;
   else
     {
       /* 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);
+      new_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;
+      new_domain = (char *) malloc (len);
+      if (new_domain != NULL)
+	memcpy (new_domain, domainname, len);
 #endif
+
+      if (new_domain != NULL)
+	_nl_current_default_domain = new_domain;
+    }
+
+  /* We use this possibility to signal a change of the loaded catalogs
+     since this is most likely the case and there is no other easy we
+     to do it.  Do it only when the call was successful.  */
+  if (new_domain != NULL)
+    {
+      ++_nl_msg_cat_cntr;
+
+      if (old_domain != new_domain && old_domain != _nl_default_default_domain)
+	free (old_domain);
     }
 
-  if (old != _nl_default_default_domain)
-    free (old);
+  __libc_rwlock_unlock (_nl_state_lock);
 
-  return (char *) _nl_current_default_domain;
+  return new_domain;
 }
 
 #ifdef _LIBC