Update to latest gnulib and gettext versions.

* bootstrap (gnulib-modules): Remove hard-locale, stdio-safer.
Add fopen-safer.
(gnulib_files): Add m4/warning.m4.  Don't worry about files
overwritten by autopoint.
Replace gt_INTL_SUBDIR_CORE with an empty body in m4/gettext_gl.m4.
Suppress "id", "ms", "tr" translations for now, since gettext 0.15
rejects them.
Don't use autoreconf; instead, invoke autopoint etc. by hand,
so that we can remove the intl files at a better time.
(intl_files_to_remove): Remove aclocal.m4, since it gets
rebuilt anyway.  Remove m4/inttypes_h.m4, m4/inttypes.m4,
m4/isc-posix.m4, m4/lib-ld.m4, m4/lib-prefix.m4, m4/po.m4,
m4/stdint_h.m4, m4/uintmax_t.m4, m4/ulonglong.m4.
Add m4/inttypes-h.m4, m4/lock.m4, m4/visibility.m4.
Remove datarootdir hack; no longer needed.
* configure.ac: Use gl_WARNING_CFLAGS rather than BISON_WARNING.
(AM_GNU_GETTEXT_VERSION): Bump from 0.12 to 0.15.
* lib/.cvsignore: Remove hard-locale.c, hard-locale.h, strdup.c,
strdup.h.
* m4/.cvsignore: Remove hard-locale.m4, strdup.m4.
* m4/warning.m4: Remove from CVS, since we now use gnulib's version.

m4/.cvsignore

@@ -8,7 +8,6 @@ exitfail.m4
 extensions.m4
 getopt.m4
 gnulib.m4
-hard-locale.m4
 hash.m4
 iconv.m4
 lib-link.m4
@@ -25,7 +24,6 @@ stdbool.m4
 stdint.m4
 stdio-safer.m4
 stpcpy.m4
-strdup.m4
 strerror.m4
 strerror_r.m4
 strndup.m4

m4/warning.m4

@@ -1,32 +0,0 @@
-# Finding valid warning flags for the C Compiler.           -*-Autoconf-*-
-#
-# Copyright (C) 2001, 2002 Free Software Foundation, Inc.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# 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 General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301  USA
-
-# serial 1
-
-AC_DEFUN([BISON_WARNING],
-[AC_MSG_CHECKING(whether compiler accepts $1)
-AC_SUBST(WARNING_CFLAGS)
-ac_save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS $1"
-AC_TRY_COMPILE(,
-[int x;],
-WARNING_CFLAGS="$WARNING_CFLAGS $1"
-AC_MSG_RESULT(yes),
-AC_MSG_RESULT(no))
-CFLAGS="$ac_save_CFLAGS"])