intl: Merge with gettext version 0.19.3

This patch merges the latest release of gettext into the intl
subdirectory. The initial motivation was to include the plural.y
changes which enable building with bison 3.0, but the majority
of the other changes are merely cosmetic so it seemed like merging
the whole directory was simpler than trying to take it piecemeal.

The merge was done by copying across the latext gettext code and
adding in a few small glibc changes that have been added over the
years that seemed beneficial, as well as a couple of small build
fixes that should be merged back to gettext. I also reverted the
gettext commit:

commit 279b57fc367251666f00e8e2b599b83703451afb
Author: Bruno Haible <bruno@clisp.org>
Date:   Fri Jun 14 12:03:49 2002 +0000

    Make absolute pathnames inside $LANGUAGE work.

As it caused localedata/tst-setlocale3 to fail and it wasn't clear
that glibc wanted that behaviour.

The merge has dropped many uses of __glibc_likely/unlikely. This is
intentional given that it eases merging. It seems to me that the cost
of continually rewriting these lines when merging and the risk of adding
bugs when doing so outweighs the benefits of using these macros when
code is shared with another project.

Tested with make check on x86_64.

ChangeLog:

2014-12-11  Will Newton  <will.newton@linaro.org>

	Merge gettext 0.19.3 into intl/.

	This involves a number of cosmetic changes to comments
	and ANSI function definitions and prototypes throughout
	all the files. The gettext copyright header is used but
	with the date ranges taken from the glibc copy.

	* NEWS: Add gettext merge to 2.21.
	* intl/bindtextdom.c: Switch to gettext copyright.
	Use ANSI definitions and prototypes.
	Use gl_* locking primitives rather than __libc_* ones.
	Use __builtin_expect rather than __glibc_likely/unlikely.
	* intl/dcgettext.c: Switch to gettext copyright.
	Use ANSI definitions and prototypes.
	* intl/dcigettext.c: Switch to gettext copyright.
	Use ANSI definitions and prototypes.
	(INTDIV0_RAISES_SIGFPE): New define.
	Use gl_* locking primitives rather than __libc_* ones.
	Include eval-plural.h instead of plural-eval.c.
	Use __builtin_expect rather than __glibc_likely/unlikely.
	* intl/dcngettext.c: Switch to gettext copyright.
	Use ANSI definitions and prototypes.
	* intl/dgettext.c: Likewise.
	* intl/dngettext.c: Likewise.
	* intl/plural-eval.c: Renamed to...
	* intl/eval-plural.h: ...this.
	* intl/explodename.c: Switch to gettext copyright.
	Use ANSI definitions and prototypes.
	(_nl_explode_name): Use strchr instead of __rawmemchr.
	* intl/finddomain.c: Switch to gettext copyright.
	Use ANSI definitions and prototypes.
	Use gl_* locking primitives rather than __libc_* ones.
	(_nl_find_domain): Use malloc rather than alloca for
	allocation of temporary locale name.
	* intl/gettext.c: Switch to gettext copyright.
	Use ANSI definitions and prototypes.
	* intl/gettextP.h: Switch to gettext copyright.
	Use ANSI definitions and prototypes.
	Use gl_* locking primitives rather than __libc_* ones.
	* intl/gmo.h: Switch to gettext copyright.
	(struct sysdep_string): Move struct segment_pair outside of
	struct definition.
	* intl/hash-string.c: Use ANSI definitions and prototypes.
	* intl/hash-string.h: Switch to gettext copyright.
	Use ANSI definitions and prototypes.
	* intl/l10nflist.c: Switch to gettext copyright.
	Use ANSI definitions and prototypes.
	(_nl_normalize_codeset): Avoid integer overflow.
	* intl/loadinfo.h: Switch to gettext copyright.
	Use ANSI definitions and prototypes.
	(LIBINTL_DLL_EXPORTED): New define.
	(PATH_SEPARATOR): New define.
	* intl/loadmsgcat.c: Switch to gettext copyright.
	* intl/localealias.c: Switch to gettext copyright.
	Use ANSI definitions and prototypes.
	(_nl_expand_alias): Use PATH_SEPARATOR.
	* intl/ngettext.c: Switch to gettext copyright.
	Use ANSI definitions and prototypes.
	* intl/plural-exp.c: Likewise.
	* intl/plural-exp.h: Switch to gettext copyright.
	Use ANSI definitions and prototypes.
	(struct expression): Move definition of enum operator outside
	of struct definition.
	* intl/plural.c: Regenerate.
	* intl/plural.y: Switch to gettext copyright.
	Use ANSI definitions and prototypes.
	Port to bison 3.0.
	* intl/textdomain.c: Switch to gettext copyright.
	Use ANSI definitions and prototypes.
	Use gl_* locking primitives rather than __libc_* ones.

24 files changed, 1366 insertions, 1129 deletions

diff --git a/intl/bindtextdom.c b/intl/bindtextdom.c
index c3624961a8..29a1b12e9f 100644
--- a/intl/bindtextdom.c
+++ b/intl/bindtextdom.c
@@ -1,20 +1,18 @@
 /* Implementation of the bindtextdomain(3) function
    Copyright (C) 1995-2014 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 Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as published by
+   the Free Software Foundation; either version 2.1 of the License, or
+   (at your option) any later version.
 
-   The GNU C Library is distributed in the hope that it will be useful,
+   This program 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
-   Lesser General Public License for more details.
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Lesser General Public License for more details.
 
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifdef HAVE_CONFIG_H
 # include <config.h>
@@ -24,29 +22,21 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "gettextP.h"
 #ifdef _LIBC
 # include <libintl.h>
 #else
 # include "libgnuintl.h"
 #endif
-#include "gettextP.h"
 
+/* Handle multi-threaded applications.  */
 #ifdef _LIBC
-/* We have to handle multi-threaded applications.  */
 # include <bits/libc-lock.h>
+# define gl_rwlock_define __libc_rwlock_define
+# define gl_rwlock_wrlock __libc_rwlock_wrlock
+# define gl_rwlock_unlock __libc_rwlock_unlock
 #else
-/* Provide dummy implementation if this is outside glibc.  */
-# define __libc_rwlock_define(CLASS, NAME)
-# define __libc_rwlock_wrlock(NAME)
-# define __libc_rwlock_unlock(NAME)
-#endif
-
-/* The internal variables in the standalone libintl.a must have different
-   names than the internal variables in GNU libc, otherwise programs
-   using libintl.a cannot be linked statically.  */
-#if !defined _LIBC
-# define _nl_default_dirname libintl_nl_default_dirname
-# define _nl_domain_bindings libintl_nl_domain_bindings
+# include "lock.h"
 #endif
 
 /* Some compilers, like SunOS4 cc, don't have offsetof in <stddef.h>.  */
@@ -56,17 +46,8 @@
 
 /* @@ end of prolog @@ */
 
-/* Contains the default location of the message catalogs.  */
-extern const char _nl_default_dirname[];
-#ifdef _LIBC
-libc_hidden_proto (_nl_default_dirname)
-#endif
-
-/* 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 attribute_hidden)
+gl_rwlock_define (extern, _nl_state_lock attribute_hidden)
 
 
 /* Names for the libintl functions are a problem.  They must not clash
@@ -84,11 +65,6 @@ __libc_rwlock_define (extern, _nl_state_lock attribute_hidden)
 # define BIND_TEXTDOMAIN_CODESET libintl_bind_textdomain_codeset
 #endif
 
-/* Prototypes for local functions.  */
-static void set_binding_values PARAMS ((const char *domainname,
-					const char **dirnamep,
-					const char **codesetp));
-
 /* Specifies the directory name *DIRNAMEP and the output codeset *CODESETP
    to be used for the DOMAINNAME message catalog.
    If *DIRNAMEP or *CODESETP is NULL, the corresponding attribute is not
@@ -96,10 +72,8 @@ static void set_binding_values PARAMS ((const char *domainname,
    If DIRNAMEP or CODESETP is NULL, the corresponding attribute is neither
    modified nor returned.  */
 static void
-set_binding_values (domainname, dirnamep, codesetp)
-     const char *domainname;
-     const char **dirnamep;
-     const char **codesetp;
+set_binding_values (const char *domainname,
+		    const char **dirnamep, const char **codesetp)
 {
   struct binding *binding;
   int modified;
@@ -114,7 +88,7 @@ set_binding_values (domainname, dirnamep, codesetp)
       return;
     }
 
-  __libc_rwlock_wrlock (_nl_state_lock);
+  gl_rwlock_wrlock (_nl_state_lock);
 
   modified = 0;
 
@@ -158,12 +132,12 @@ set_binding_values (domainname, dirnamep, codesetp)
 #else
 		      size_t len = strlen (dirname) + 1;
 		      result = (char *) malloc (len);
-		      if (__glibc_likely (result != NULL))
+		      if (__builtin_expect (result != NULL, 1))
 			memcpy (result, dirname, len);
 #endif
 		    }
 
-		  if (__glibc_likely (result != NULL))
+		  if (__builtin_expect (result != NULL, 1))
 		    {
 		      if (binding->dirname != _nl_default_dirname)
 			free (binding->dirname);
@@ -196,11 +170,11 @@ set_binding_values (domainname, dirnamep, codesetp)
 #else
 		  size_t len = strlen (codeset) + 1;
 		  result = (char *) malloc (len);
-		  if (__glibc_likely (result != NULL))
+		  if (__builtin_expect (result != NULL, 1))
 		    memcpy (result, codeset, len);
 #endif
 
-		  if (__glibc_likely (result != NULL))
+		  if (__builtin_expect (result != NULL, 1))
 		    {
 		      free (binding->codeset);
 
@@ -228,7 +202,7 @@ set_binding_values (domainname, dirnamep, codesetp)
       struct binding *new_binding =
 	(struct binding *) malloc (offsetof (struct binding, domainname) + len);
 
-      if (__glibc_unlikely (new_binding == NULL))
+      if (__builtin_expect (new_binding == NULL, 0))
 	goto failed;
 
       memcpy (new_binding->domainname, domainname, len);
@@ -249,12 +223,12 @@ set_binding_values (domainname, dirnamep, codesetp)
 		  char *result;
 #if defined _LIBC || defined HAVE_STRDUP
 		  result = strdup (dirname);
-		  if (__glibc_unlikely (result == NULL))
+		  if (__builtin_expect (result == NULL, 0))
 		    goto failed_dirname;
 #else
 		  size_t len = strlen (dirname) + 1;
 		  result = (char *) malloc (len);
-		  if (__glibc_unlikely (result == NULL))
+		  if (__builtin_expect (result == NULL, 0))
 		    goto failed_dirname;
 		  memcpy (result, dirname, len);
 #endif
@@ -278,12 +252,12 @@ set_binding_values (domainname, dirnamep, codesetp)
 
 #if defined _LIBC || defined HAVE_STRDUP
 	      result = strdup (codeset);
-	      if (__glibc_unlikely (result == NULL))
+	      if (__builtin_expect (result == NULL, 0))
 		goto failed_codeset;
 #else
 	      size_t len = strlen (codeset) + 1;
 	      result = (char *) malloc (len);
-	      if (__glibc_unlikely (result == NULL))
+	      if (__builtin_expect (result == NULL, 0))
 		goto failed_codeset;
 	      memcpy (result, codeset, len);
 #endif
@@ -335,15 +309,13 @@ set_binding_values (domainname, dirnamep, codesetp)
   if (modified)
     ++_nl_msg_cat_cntr;
 
-  __libc_rwlock_unlock (_nl_state_lock);
+  gl_rwlock_unlock (_nl_state_lock);
 }
 
 /* Specify that the DOMAINNAME message catalog will be found
    in DIRNAME rather than in the system locale data base.  */
 char *
-BINDTEXTDOMAIN (domainname, dirname)
-     const char *domainname;
-     const char *dirname;
+BINDTEXTDOMAIN (const char *domainname, const char *dirname)
 {
   set_binding_values (domainname, &dirname, NULL);
   return (char *) dirname;
@@ -352,9 +324,7 @@ BINDTEXTDOMAIN (domainname, dirname)
 /* Specify the character encoding in which the messages from the
    DOMAINNAME message catalog will be returned.  */
 char *
-BIND_TEXTDOMAIN_CODESET (domainname, codeset)
-     const char *domainname;
-     const char *codeset;
+BIND_TEXTDOMAIN_CODESET (const char *domainname, const char *codeset)
 {
   set_binding_values (domainname, NULL, &codeset);
   return (char *) codeset;
diff --git a/intl/dcgettext.c b/intl/dcgettext.c
index 4daae557f1..95dccad9d2 100644
--- a/intl/dcgettext.c
+++ b/intl/dcgettext.c
@@ -1,20 +1,18 @@
 /* Implementation of the dcgettext(3) function.
    Copyright (C) 1995-2014 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 Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as published by
+   the Free Software Foundation; either version 2.1 of the License, or
+   (at your option) any later version.
 
-   The GNU C Library is distributed in the hope that it will be useful,
+   This program 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
-   Lesser General Public License for more details.
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Lesser General Public License for more details.
 
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifdef HAVE_CONFIG_H
 # include <config.h>
@@ -44,10 +42,7 @@
 /* Look up MSGID in the DOMAINNAME message catalog for the current CATEGORY
    locale.  */
 char *
-DCGETTEXT (domainname, msgid, category)
-     const char *domainname;
-     const char *msgid;
-     int category;
+DCGETTEXT (const char *domainname, const char *msgid, int category)
 {
   return DCIGETTEXT (domainname, msgid, NULL, 0, 0, category);
 }
diff --git a/intl/dcigettext.c b/intl/dcigettext.c
index 723dd7ef46..7af4a76410 100644
--- a/intl/dcigettext.c
+++ b/intl/dcigettext.c
@@ -1,20 +1,18 @@
 /* Implementation of the internal dcigettext function.
    Copyright (C) 1995-2014 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 Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as published by
+   the Free Software Foundation; either version 2.1 of the License, or
+   (at your option) any later version.
 
-   The GNU C Library is distributed in the hope that it will be useful,
+   This program 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
-   Lesser General Public License for more details.
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Lesser General Public License for more details.
 
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Tell glibc's <string.h> to provide a prototype for mempcpy().
    This must come before <config.h> because <config.h> may include
@@ -33,14 +31,19 @@
 # define alloca __builtin_alloca
 # define HAVE_ALLOCA 1
 #else
-# if defined HAVE_ALLOCA_H || defined _LIBC
-#  include <alloca.h>
+# ifdef _MSC_VER
+#  include <malloc.h>
+#  define alloca _alloca
 # else
-#  ifdef _AIX
- #pragma alloca
+#  if defined HAVE_ALLOCA_H || defined _LIBC
+#   include <alloca.h>
 #  else
-#   ifndef alloca
+#   ifdef _AIX
+ #pragma alloca
+#   else
+#    ifndef alloca
 char *alloca ();
+#    endif
 #   endif
 #  endif
 # endif
@@ -64,30 +67,49 @@ extern int errno;
 
 #include <locale.h>
 
+#ifdef _LIBC
+  /* Guess whether integer division by zero raises signal SIGFPE.
+     Set to 1 only if you know for sure.  In case of doubt, set to 0.  */
+# if defined __alpha__ || defined __arm__ || defined __i386__ \
+     || defined __m68k__ || defined __s390__
+#  define INTDIV0_RAISES_SIGFPE 1
+# else
+#  define INTDIV0_RAISES_SIGFPE 0
+# endif
+#endif
+#if !INTDIV0_RAISES_SIGFPE
+# include <signal.h>
+#endif
+
 #if defined HAVE_SYS_PARAM_H || defined _LIBC
 # include <sys/param.h>
 #endif
 
+#if !defined _LIBC
+# include "localcharset.h"
+#endif
+
 #include "gettextP.h"
 #include "plural-exp.h"
 #ifdef _LIBC
 # include <libintl.h>
 #else
+# ifdef IN_LIBGLOCALE
+#  include <libintl.h>
+# endif
 # include "libgnuintl.h"
 #endif
 #include "hash-string.h"
 
-/* Thread safetyness.  */
+/* Handle multi-threaded applications.  */
 #ifdef _LIBC
 # include <bits/libc-lock.h>
+# define gl_rwlock_define_initialized __libc_rwlock_define_initialized
+# define gl_rwlock_rdlock __libc_rwlock_rdlock
+# define gl_rwlock_wrlock __libc_rwlock_wrlock
+# define gl_rwlock_unlock __libc_rwlock_unlock
 #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)
-# define __libc_rwlock_define_initialized(CLASS, NAME)
-# define __libc_rwlock_rdlock(NAME)
-# define __libc_rwlock_unlock(NAME)
+# include "lock.h"
 #endif
 
 /* Alignment of types.  */
@@ -98,16 +120,6 @@ extern int errno;
     ((int) &((struct { char dummy1; TYPE dummy2; } *) 0)->dummy2)
 #endif
 
-/* The internal variables in the standalone libintl.a must have different
-   names than the internal variables in GNU libc, otherwise programs
-   using libintl.a cannot be linked statically.  */
-#if !defined _LIBC
-# define _nl_default_default_domain libintl_nl_default_default_domain
-# define _nl_current_default_domain libintl_nl_current_default_domain
-# define _nl_default_dirname libintl_nl_default_dirname
-# define _nl_domain_bindings libintl_nl_domain_bindings
-#endif
-
 /* Some compilers, like SunOS4 cc, don't have offsetof in <stddef.h>.  */
 #ifndef offsetof
 # define offsetof(type,ident) ((size_t)&(((type*)0)->ident))
@@ -129,16 +141,36 @@ extern int errno;
 char *getwd ();
 #  define getcwd(buf, max) getwd (buf)
 # else
+#  if VMS
+#   define getcwd(buf, max) (getcwd) (buf, max, 0)
+#  else
 char *getcwd ();
+#  endif
 # endif
 # ifndef HAVE_STPCPY
-static char *stpcpy PARAMS ((char *dest, const char *src));
+static char *stpcpy (char *dest, const char *src);
 # endif
 # ifndef HAVE_MEMPCPY
-static void *mempcpy PARAMS ((void *dest, const void *src, size_t n));
+static void *mempcpy (void *dest, const void *src, size_t n);
 # endif
 #endif
 
+/* Use a replacement if the system does not provide the `tsearch' function
+   family.  */
+#if defined HAVE_TSEARCH || defined _LIBC
+# include <search.h>
+#else
+# define tsearch libintl_tsearch
+# define tfind libintl_tfind
+# define tdelete libintl_tdelete
+# define twalk libintl_twalk
+# include "tsearch.h"
+#endif
+
+#ifdef _LIBC
+# define tsearch __tsearch
+#endif
+
 /* Amount to increase buffer size by in each try.  */
 #define PATH_INCR 32