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, 77 insertions, 39 deletions

diff --git a/intl/loadinfo.h b/intl/loadinfo.h
index e11b2e85b0..adf5bc9cb7 100644
--- a/intl/loadinfo.h
+++ b/intl/loadinfo.h
@@ -2,19 +2,18 @@
    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 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/>.  */
 
 #ifndef _LOADINFO_H
 #define _LOADINFO_H	1
@@ -31,18 +30,29 @@
    in gettextP.h.
  */
 
-#ifndef PARAMS
-# if __STDC__ || defined __GNUC__ || defined __SUNPRO_C || defined __cplusplus || __PROTOTYPES
-#  define PARAMS(args) args
-# else
-#  define PARAMS(args) ()
-# endif
-#endif
-
 #ifndef internal_function
 # define internal_function
 #endif
 
+#ifndef LIBINTL_DLL_EXPORTED
+# define LIBINTL_DLL_EXPORTED
+#endif
+
+/* Tell the compiler when a conditional or integer expression is
+   almost always true or almost always false.  */
+#ifndef HAVE_BUILTIN_EXPECT
+# define __builtin_expect(expr, val) (expr)
+#endif
+
+/* Separator in PATH like lists of pathnames.  */
+#if ((defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__) || defined __EMX__ || defined __DJGPP__
+  /* Win32, OS/2, DOS */
+# define PATH_SEPARATOR ';'
+#else
+  /* Unix */
+# define PATH_SEPARATOR ':'
+#endif
+
 /* Encoding of locale name parts.  */
 #define XPG_NORM_CODESET	1
 #define XPG_CODESET		2
@@ -66,27 +76,55 @@ struct loaded_l10nfile
    names.  Normalization allows the user to use any of the common
    names.  The return value is dynamically allocated and has to be
    freed by the caller.  */
-extern const char *_nl_normalize_codeset PARAMS ((const char *codeset,
-						  size_t name_len));
-
+extern const char *_nl_normalize_codeset (const char *codeset,
+					  size_t name_len);
+
+/* Lookup a locale dependent file.
+   *L10NFILE_LIST denotes a pool of lookup results of locale dependent
+   files of the same kind, sorted in decreasing order of ->filename.
+   DIRLIST and DIRLIST_LEN are an argz list of directories in which to
+   look, containing at least one directory (i.e. DIRLIST_LEN > 0).
+   MASK, LANGUAGE, TERRITORY, CODESET, NORMALIZED_CODESET, MODIFIER
+   are the pieces of the locale name, as produced by _nl_explode_name().
+   FILENAME is the filename suffix.
+   The return value is the lookup result, either found in *L10NFILE_LIST,
+   or - if DO_ALLOCATE is nonzero - freshly allocated, or possibly NULL.
+   If the return value is non-NULL, it is added to *L10NFILE_LIST, and
+   its ->next field denotes the chaining inside *L10NFILE_LIST, and
+   furthermore its ->successor[] field contains a list of other lookup
+   results from which this lookup result inherits.  */
 extern struct loaded_l10nfile *
-_nl_make_l10nflist PARAMS ((struct loaded_l10nfile **l10nfile_list,
-			    const char *dirlist, size_t dirlist_len, int mask,
-			    const char *language, const char *territory,
-			    const char *codeset,
-			    const char *normalized_codeset,
-			    const char *modifier, const char *filename,
-			    int do_allocate));
-
-
-extern const char *_nl_expand_alias PARAMS ((const char *name));
-
-/* normalized_codeset is dynamically allocated and has to be freed by
-   the caller.  */
-extern int _nl_explode_name PARAMS ((char *name, const char **language,
-				     const char **modifier,
-				     const char **territory,
-				     const char **codeset,
-				     const char **normalized_codeset));
+_nl_make_l10nflist (struct loaded_l10nfile **l10nfile_list,
+		    const char *dirlist, size_t dirlist_len, int mask,
+		    const char *language, const char *territory,
+		    const char *codeset, const char *normalized_codeset,
+		    const char *modifier,
+		    const char *filename, int do_allocate);
+
+/* Lookup the real locale name for a locale alias NAME, or NULL if
+   NAME is not a locale alias (but possibly a real locale name).
+   The return value is statically allocated and must not be freed.  */
+/* Part of the libintl ABI only for the sake of the gettext.m4 macro.  */
+extern LIBINTL_DLL_EXPORTED const char *_nl_expand_alias (const char *name);
+
+/* Split a locale name NAME into its pieces: language, modifier,
+   territory, codeset.
+   NAME gets destructively modified: NUL bytes are inserted here and
+   there.  *LANGUAGE gets assigned NAME.  Each of *MODIFIER, *TERRITORY,
+   *CODESET gets assigned either a pointer into the old NAME string, or
+   NULL.  *NORMALIZED_CODESET gets assigned the expanded *CODESET, if it
+   is different from *CODESET; this one is dynamically allocated and has
+   to be freed by the caller.
+   The return value is a bitmask, where each bit corresponds to one
+   filled-in value:
+     XPG_MODIFIER                for *MODIFIER,
+     XPG_TERRITORY               for *TERRITORY,
+     XPG_CODESET                 for *CODESET,
+     XPG_NORM_CODESET            for *NORMALIZED_CODESET.
+ */
+extern int _nl_explode_name (char *name, const char **language,
+			     const char **modifier, const char **territory,
+			     const char **codeset,
+			     const char **normalized_codeset);
 
 #endif	/* loadinfo.h */