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.

1 files changed, 105 insertions, 81 deletions

diff --git a/intl/localealias.c b/intl/localealias.c
index 1d3f8ebabf..ff13ddeccd 100644
--- a/intl/localealias.c
+++ b/intl/localealias.c
@@ -1,20 +1,18 @@
 /* Handle aliases for locale names.
    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
@@ -39,14 +37,19 @@
 # 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
@@ -57,6 +60,12 @@ char *alloca ();
 
 #include "gettextP.h"
 
+#ifdef ENABLE_RELOCATABLE
+# include "relocatable.h"
+#else
+# define relocate(pathname) (pathname)
+#endif
+
 /* @@ end of prolog @@ */
 
 #ifdef _LIBC
@@ -70,11 +79,13 @@ char *alloca ();
 # endif
 # define HAVE_MEMPCPY	1
 # define HAVE___FSETLOCKING	1
+#endif
 
-/* We need locking here since we can be called from different places.  */
+/* Handle multi-threaded applications.  */
+#ifdef _LIBC
 # include <bits/libc-lock.h>
-
-__libc_lock_define_initialized (static, lock);
+#else
+# include "lock.h"
 #endif
 
 #ifndef internal_function
@@ -99,16 +110,19 @@ __libc_lock_define_initialized (static, lock);
 # define freea(p) free (p)
 #endif
 
-#if defined _LIBC_REENTRANT || defined HAVE_FGETS_UNLOCKED
+#if defined _LIBC_REENTRANT || defined HAVE_DECL_FGETS_UNLOCKED
 # undef fgets
 # define fgets(buf, len, s) fgets_unlocked (buf, len, s)
 #endif
-#if defined _LIBC_REENTRANT || defined HAVE_FEOF_UNLOCKED
+#if defined _LIBC_REENTRANT || defined HAVE_DECL_FEOF_UNLOCKED
 # undef feof
 # define feof(s) feof_unlocked (s)
 #endif
 
 
+__libc_lock_define_initialized (static, lock)
+
+
 struct alias_map
 {
   const char *alias;
@@ -129,25 +143,25 @@ static size_t maxmap;
 
 
 /* Prototypes for local functions.  */
-static size_t read_alias_file PARAMS ((const char *fname, int fname_len))
+static size_t read_alias_file (const char *fname, int fname_len)
      internal_function;
-static int extend_alias_table PARAMS ((void));
-static int alias_compare PARAMS ((const struct alias_map *map1,
-				  const struct alias_map *map2));
+static int extend_alias_table (void);
+static int alias_compare (const struct alias_map *map1,
+			  const struct alias_map *map2);
 
 
 const char *
-_nl_expand_alias (name)
-    const char *name;
+_nl_expand_alias (const char *name)
 {
-  static const char *locale_alias_path = LOCALE_ALIAS_PATH;
+  static const char *locale_alias_path;
   struct alias_map *retval;
   const char *result = NULL;
   size_t added;
 
-#ifdef _LIBC
   __libc_lock_lock (lock);
-#endif
+
+  if (locale_alias_path == NULL)
+    locale_alias_path = LOCALE_ALIAS_PATH;
 
   do
     {
@@ -158,8 +172,8 @@ _nl_expand_alias (name)
       if (nmap > 0)
 	retval = (struct alias_map *) bsearch (&item, map, nmap,
 					       sizeof (struct alias_map),
-					       (int (*) PARAMS ((const void *,
-								 const void *))
+					       (int (*) (const void *,
+							 const void *)
 						) alias_compare);
       else
 	retval = NULL;
@@ -177,11 +191,12 @@ _nl_expand_alias (name)
 	{
 	  const char *start;
 
-	  while (locale_alias_path[0] == ':')
+	  while (locale_alias_path[0] == PATH_SEPARATOR)
 	    ++locale_alias_path;
 	  start = locale_alias_path;
 
-	  while (locale_alias_path[0] != '\0' && locale_alias_path[0] != ':')
+	  while (locale_alias_path[0] != '\0'
+		 && locale_alias_path[0] != PATH_SEPARATOR)
 	    ++locale_alias_path;
 
 	  if (start < locale_alias_path)
@@ -190,9 +205,7 @@ _nl_expand_alias (name)
     }
   while (added != 0);
 
-#ifdef _LIBC
   __libc_lock_unlock (lock);
-#endif
 
   return result;
 }
@@ -200,9 +213,7 @@ _nl_expand_alias (name)
 
 static size_t
 internal_function
-read_alias_file (fname, fname_len)
-     const char *fname;
-     int fname_len;
+read_alias_file (const char *fname, int fname_len)
 {
   FILE *fp;
   char *full_fname;
@@ -218,9 +229,13 @@ read_alias_file (fname, fname_len)
   memcpy (&full_fname[fname_len], aliasfile, sizeof aliasfile);
 #endif
 
+#ifdef _LIBC
   /* Note the file is opened with cancellation in the I/O functions
      disabled.  */
-  fp = fopen (full_fname, "rce");
+  fp = fopen (relocate (full_fname), "rce");
+#else
+  fp = fopen (relocate (full_fname), "r");
+#endif
   freea (full_fname);
   if (fp == NULL)
     return 0;
@@ -274,9 +289,6 @@ read_alias_file (fname, fname_len)
 
 	  if (cp[0] != '\0')
 	    {
-	      size_t alias_len;
-	      size_t value_len;
-
 	      value = cp++;
 	      while (cp[0] != '\0' && !isspace ((unsigned char) cp[0]))
 		++cp;
@@ -292,48 +304,62 @@ read_alias_file (fname, fname_len)
 	      else if (cp[0] != '\0')
 		*cp++ = '\0';
 
-	      if (nmap >= maxmap)
-		if (__glibc_unlikely (extend_alias_table ()))
-		  goto out;
+#ifdef IN_LIBGLOCALE
+	      /* glibc's locale.alias contains entries for ja_JP and ko_KR
+		 that make it impossible to use a Japanese or Korean UTF-8
+		 locale under the name "ja_JP" or "ko_KR".  Ignore these
+		 entries.  */
+	      if (strchr (alias, '_') == NULL)
+#endif
+		{
+		  size_t alias_len;
+		  size_t value_len;
 
-	      alias_len = strlen (alias) + 1;
-	      value_len = strlen (value) + 1;
+		  if (nmap >= maxmap)
+		    if (__builtin_expect (extend_alias_table (), 0))
+		      goto out;
 
-	      if (string_space_act + alias_len + value_len > string_space_max)
-		{
-		  /* Increase size of memory pool.  */
-		  size_t new_size = (string_space_max
-				     + (alias_len + value_len > 1024
-					? alias_len + value_len : 1024));
-		  char *new_pool = (char *) realloc (string_space, new_size);
-		  if (new_pool == NULL)
-		    goto out;
-
-		  if (__glibc_unlikely (string_space != new_pool))
-		    {
-		      size_t i;
+		  alias_len = strlen (alias) + 1;
+		  value_len = strlen (value) + 1;
 
-		      for (i = 0; i < nmap; i++)
+		  if (string_space_act + alias_len + value_len > string_space_max)
+		    {
+		      /* Increase size of memory pool.  */
+		      size_t new_size = (string_space_max
+					 + (alias_len + value_len > 1024
+					    ? alias_len + value_len : 1024));
+		      char *new_pool = (char *) realloc (string_space, new_size);
+		      if (new_pool == NULL)
+			goto out;
+
+		      if (__builtin_expect (string_space != new_pool, 0))
 			{
-			  map[i].alias += new_pool - string_space;
-			  map[i].value += new_pool - string_space;
+			  size_t i;
+
+			  for (i = 0; i < nmap; i++)
+			    {
+			      map[i].alias += new_pool - string_space;
+			      map[i].value += new_pool - string_space;
+			    }
 			}
-		    }
 
-		  string_space = new_pool;
-		  string_space_max = new_size;
-		}
+		      string_space = new_pool;
+		      string_space_max = new_size;
+		    }
 
-	      map[nmap].alias = memcpy (&string_space[string_space_act],
-					alias, alias_len);
-	      string_space_act += alias_len;
+		  map[nmap].alias =
+		    (const char *) memcpy (&string_space[string_space_act],
+					   alias, alias_len);
+		  string_space_act += alias_len;
 
-	      map[nmap].value = memcpy (&string_space[string_space_act],
-					value, value_len);
-	      string_space_act += value_len;
+		  map[nmap].value =
+		    (const char *) memcpy (&string_space[string_space_act],
+					   value, value_len);
+		  string_space_act += value_len;
 
-	      ++nmap;
-	      ++added;
+		  ++nmap;
+		  ++added;
+		}
 	    }
 	}
 
@@ -348,14 +374,14 @@ read_alias_file (fname, fname_len)
 	while (strchr (buf, '\n') == NULL);
     }
 
-out:
+ out:
   /* Should we test for ferror()?  I think we have to silently ignore
      errors.  --drepper  */
   fclose (fp);
 
   if (added > 0)
     qsort (map, nmap, sizeof (struct alias_map),
-	   (int (*) PARAMS ((const void *, const void *))) alias_compare);
+	   (int (*) (const void *, const void *)) alias_compare);
 
   return added;
 }
@@ -381,9 +407,7 @@ extend_alias_table (void)
 
 
 static int
-alias_compare (map1, map2)
-     const struct alias_map *map1;
-     const struct alias_map *map2;
+alias_compare (const struct alias_map *map1, const struct alias_map *map2)
 {
 #if defined _LIBC || defined HAVE_STRCASECMP
   return strcasecmp (map1->alias, map2->alias);