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, 36 insertions, 62 deletions

diff --git a/intl/plural.y b/intl/plural.y
index 105fe0d50e..d74de07a15 100644
--- a/intl/plural.y
+++ b/intl/plural.y
@@ -1,30 +1,30 @@
 %{
 /* Expression parsing for plural form selection.
    Copyright (C) 2000-2014 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
    Written by Ulrich Drepper <drepper@cygnus.com>, 2000.
 
-   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/>.  */
 
-/* The bison generated parser uses alloca.  AIX 3 forces us to put this
-   declaration at the beginning of the file.  The declaration in bison's
-   skeleton file comes too late.  This must come before <config.h>
-   because <config.h> may include arbitrary system headers.  */
+/* For bison < 2.0, the bison generated parser uses alloca.  AIX 3 forces us
+   to put this declaration at the beginning of the file.  The declaration in
+   bison's skeleton file comes too late.  This must come before <config.h>
+   because <config.h> may include arbitrary system headers.
+   This can go away once the AM_INTL_SUBDIR macro requires bison >= 2.0.  */
 #if defined _AIX && !defined __GNUC__
  #pragma alloca
 #endif
+
 #ifdef HAVE_CONFIG_H
 # include <config.h>
 #endif
@@ -40,42 +40,28 @@
 # define __gettextparse PLURAL_PARSE
 #endif
 
-#define YYLEX_PARAM	&((struct parse_args *) arg)->cp
-#define YYPARSE_PARAM	arg
 %}
-%pure_parser
+%parse-param {struct parse_args *arg}
+%lex-param {struct parse_args *arg}
+%define api.pure full
 %expect 7
 
 %union {
   unsigned long int num;
-  enum operator op;
+  enum expression_operator op;
   struct expression *exp;
 }
 
 %{
 /* Prototypes for local functions.  */
-static struct expression *new_exp PARAMS ((int nargs, enum operator op,
-					   struct expression * const *args));
-static inline struct expression *new_exp_0 PARAMS ((enum operator op));
-static inline struct expression *new_exp_1 PARAMS ((enum operator op,
-						   struct expression *right));
-static struct expression *new_exp_2 PARAMS ((enum operator op,
-					     struct expression *left,
-					     struct expression *right));
-static inline struct expression *new_exp_3 PARAMS ((enum operator op,
-						   struct expression *bexp,
-						   struct expression *tbranch,
-						   struct expression *fbranch));
-static int yylex PARAMS ((YYSTYPE *lval, const char **pexp));
-static void yyerror PARAMS ((const char *str));
+static int yylex (YYSTYPE *lval, struct parse_args *arg);
+static void yyerror (struct parse_args *arg, const char *str);
 
 /* Allocation of expressions.  */
 
 static struct expression *
-new_exp (nargs, op, args)
-     int nargs;
-     enum operator op;
-     struct expression * const *args;
+new_exp (int nargs, enum expression_operator op,
+	 struct expression * const *args)
 {
   int i;
   struct expression *newp;
@@ -104,16 +90,13 @@ new_exp (nargs, op, args)
 }
 
 static inline struct expression *
-new_exp_0 (op)
-     enum operator op;
+new_exp_0 (enum expression_operator op)
 {
   return new_exp (0, op, NULL);
 }
 
 static inline struct expression *
-new_exp_1 (op, right)
-     enum operator op;
-     struct expression *right;
+new_exp_1 (enum expression_operator op, struct expression *right)
 {
   struct expression *args[1];
 
@@ -122,10 +105,8 @@ new_exp_1 (op, right)
 }
 
 static struct expression *
-new_exp_2 (op, left, right)
-     enum operator op;
-     struct expression *left;
-     struct expression *right;
+new_exp_2 (enum expression_operator op, struct expression *left,
+	   struct expression *right)
 {
   struct expression *args[2];
 
@@ -135,11 +116,8 @@ new_exp_2 (op, left, right)
 }
 
 static inline struct expression *
-new_exp_3 (op, bexp, tbranch, fbranch)
-     enum operator op;
-     struct expression *bexp;
-     struct expression *tbranch;
-     struct expression *fbranch;
+new_exp_3 (enum expression_operator op, struct expression *bexp,
+	   struct expression *tbranch, struct expression *fbranch)
 {
   struct expression *args[3];
 
@@ -175,7 +153,7 @@ start:	  exp
 	  {
 	    if ($1 == NULL)
 	      YYABORT;
-	    ((struct parse_args *) arg)->res = $1;
+	    arg->res = $1;
 	  }
 	;
 
@@ -230,8 +208,7 @@ exp:	  exp '?' exp ':' exp
 
 void
 internal_function
-FREE_EXPRESSION (exp)
-     struct expression *exp;
+FREE_EXPRESSION (struct expression *exp)
 {
   if (exp == NULL)
     return;
@@ -257,18 +234,16 @@ FREE_EXPRESSION (exp)
 
 
 static int
-yylex (lval, pexp)
-     YYSTYPE *lval;
-     const char **pexp;
+yylex (YYSTYPE *lval, struct parse_args *arg)
 {
-  const char *exp = *pexp;
+  const char *exp = arg->cp;
   int result;
 
   while (1)
     {
       if (exp[0] == '\0')
 	{
-	  *pexp = exp;
+	  arg->cp = exp;
 	  return YYEOF;
 	}
 
@@ -395,15 +370,14 @@ yylex (lval, pexp)
       break;
     }
 
-  *pexp = exp;
+  arg->cp = exp;
 
   return result;
 }
 
 
 static void
-yyerror (str)
-     const char *str;
+yyerror (struct parse_args *arg, const char *str)
 {
   /* Do nothing.  We don't print error messages here.  */
 }