package/libs/gettext/src/m4/intl.m4

   1 # intl.m4 serial 17 (gettext-0.18)
   2 dnl Copyright (C) 1995-2009 Free Software Foundation, Inc.
   3 dnl This file is free software; the Free Software Foundation
   4 dnl gives unlimited permission to copy and/or distribute it,
   5 dnl with or without modifications, as long as this notice is preserved.
   6 dnl
   7 dnl This file can can be used in projects which are not available under
   8 dnl the GNU General Public License or the GNU Library General Public
   9 dnl License but which still want to provide support for the GNU gettext
  10 dnl functionality.
  11 dnl Please note that the actual code of the GNU gettext library is covered
  12 dnl by the GNU Library General Public License, and the rest of the GNU
  13 dnl gettext package package is covered by the GNU General Public License.
  14 dnl They are *not* in the public domain.
  15
  16 dnl Authors:
  17 dnl   Ulrich Drepper <drepper@cygnus.com>, 1995-2000.
  18 dnl   Bruno Haible <haible@clisp.cons.org>, 2000-2009.
  19
  20 AC_PREREQ([2.52])
  21
  22 dnl Checks for all prerequisites of the intl subdirectory,
  23 dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS,
  24 dnl            USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL.
  25 AC_DEFUN([AM_INTL_SUBDIR],
  26 [
  27   AC_REQUIRE([AC_PROG_INSTALL])dnl
  28   AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
  29   AC_REQUIRE([AC_PROG_CC])dnl
  30   AC_REQUIRE([AC_CANONICAL_HOST])dnl
  31   AC_REQUIRE([gt_GLIBC2])dnl
  32   AC_REQUIRE([AC_PROG_RANLIB])dnl
  33   AC_REQUIRE([gl_VISIBILITY])dnl
  34   AC_REQUIRE([gt_INTL_SUBDIR_CORE])dnl
  35   AC_REQUIRE([AC_TYPE_LONG_LONG_INT])dnl
  36   AC_REQUIRE([gt_TYPE_WCHAR_T])dnl
  37   AC_REQUIRE([gt_TYPE_WINT_T])dnl
  38   AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
  39   AC_REQUIRE([gt_TYPE_INTMAX_T])
  40   AC_REQUIRE([gt_PRINTF_POSIX])
  41   AC_REQUIRE([gl_GLIBC21])dnl
  42   AC_REQUIRE([gl_XSIZE])dnl
  43   AC_REQUIRE([gl_FCNTL_O_FLAGS])dnl
  44   AC_REQUIRE([gt_INTL_MACOSX])dnl
  45
  46   dnl Support for automake's --enable-silent-rules.
  47   case "$enable_silent_rules" in
  48     yes) INTL_DEFAULT_VERBOSITY=0;;
  49     no)  INTL_DEFAULT_VERBOSITY=1;;
  50     *)   INTL_DEFAULT_VERBOSITY=1;;
  51   esac
  52   AC_SUBST([INTL_DEFAULT_VERBOSITY])
  53
  54   AC_CHECK_TYPE([ptrdiff_t], ,
  55     [AC_DEFINE([ptrdiff_t], [long],
  56        [Define as the type of the result of subtracting two pointers, if the system doesn't define it.])
  57     ])
  58   AC_CHECK_HEADERS([stddef.h stdlib.h string.h])
  59   AC_CHECK_FUNCS([asprintf fwprintf newlocale putenv setenv setlocale \
  60     snprintf strnlen wcslen wcsnlen mbrtowc wcrtomb])
  61
  62   dnl Use the _snprintf function only if it is declared (because on NetBSD it
  63   dnl is defined as a weak alias of snprintf; we prefer to use the latter).
  64   gt_CHECK_DECL(_snprintf, [#include <stdio.h>])
  65   gt_CHECK_DECL(_snwprintf, [#include <stdio.h>])
  66
  67   dnl Use the *_unlocked functions only if they are declared.
  68   dnl (because some of them were defined without being declared in Solaris
  69   dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
  70   dnl on Solaris 2.5.1 to run on Solaris 2.6).
  71   dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
  72   gt_CHECK_DECL(getc_unlocked, [#include <stdio.h>])
  73
  74   case $gt_cv_func_printf_posix in
  75     *yes) HAVE_POSIX_PRINTF=1 ;;
  76     *) HAVE_POSIX_PRINTF=0 ;;
  77   esac
  78   AC_SUBST([HAVE_POSIX_PRINTF])
  79   if test "$ac_cv_func_asprintf" = yes; then
  80     HAVE_ASPRINTF=1
  81   else
  82     HAVE_ASPRINTF=0
  83   fi
  84   AC_SUBST([HAVE_ASPRINTF])
  85   if test "$ac_cv_func_snprintf" = yes; then
  86     HAVE_SNPRINTF=1
  87   else
  88     HAVE_SNPRINTF=0
  89   fi
  90   AC_SUBST([HAVE_SNPRINTF])
  91   if test "$ac_cv_func_newlocale" = yes; then
  92     HAVE_NEWLOCALE=1
  93   else
  94     HAVE_NEWLOCALE=0
  95   fi
  96   AC_SUBST([HAVE_NEWLOCALE])
  97   if test "$ac_cv_func_wprintf" = yes; then
  98     HAVE_WPRINTF=1
  99   else
 100     HAVE_WPRINTF=0
 101   fi
 102   AC_SUBST([HAVE_WPRINTF])
 103
 104   AM_LANGINFO_CODESET
 105   gt_LC_MESSAGES
 106
 107   dnl Compilation on mingw and Cygwin needs special Makefile rules, because
 108   dnl 1. when we install a shared library, we must arrange to export
 109   dnl    auxiliary pointer variables for every exported variable,
 110   dnl 2. when we install a shared library and a static library simultaneously,
 111   dnl    the include file specifies __declspec(dllimport) and therefore we
 112   dnl    must arrange to define the auxiliary pointer variables for the
 113   dnl    exported variables _also_ in the static library.
 114   if test "$enable_shared" = yes; then
 115     case "$host_os" in
 116       mingw* | cygwin*) is_woe32dll=yes ;;
 117       *) is_woe32dll=no ;;
 118     esac
 119   else
 120     is_woe32dll=no
 121   fi
 122   WOE32DLL=$is_woe32dll
 123   AC_SUBST([WOE32DLL])
 124
 125   dnl On mingw and Cygwin, we can activate special Makefile rules which add
 126   dnl version information to the shared libraries and executables.
 127   case "$host_os" in
 128     mingw* | cygwin*) is_woe32=yes ;;
 129     *) is_woe32=no ;;
 130   esac
 131   WOE32=$is_woe32
 132   AC_SUBST([WOE32])
 133   if test $WOE32 = yes; then
 134     dnl Check for a program that compiles Windows resource files.
 135     AC_CHECK_TOOL([WINDRES], [windres])
 136   fi
 137
 138   dnl Determine whether when creating a library, "-lc" should be passed to
 139   dnl libtool or not. On many platforms, it is required for the libtool option
 140   dnl -no-undefined to work. On HP-UX, however, the -lc - stored by libtool
 141   dnl in the *.la files - makes it impossible to create multithreaded programs,
 142   dnl because libtool also reorders the -lc to come before the -pthread, and
 143   dnl this disables pthread_create() <http://docs.hp.com/en/1896/pthreads.html>.
 144   case "$host_os" in
 145     hpux*) LTLIBC="" ;;
 146     *)     LTLIBC="-lc" ;;
 147   esac
 148   AC_SUBST([LTLIBC])
 149
 150   dnl Rename some macros and functions used for locking.
 151   AH_BOTTOM([
 152 #define __libc_lock_t                   gl_lock_t
 153 #define __libc_lock_define              gl_lock_define
 154 #define __libc_lock_define_initialized  gl_lock_define_initialized
 155 #define __libc_lock_init                gl_lock_init
 156 #define __libc_lock_lock                gl_lock_lock
 157 #define __libc_lock_unlock              gl_lock_unlock
 158 #define __libc_lock_recursive_t                   gl_recursive_lock_t
 159 #define __libc_lock_define_recursive              gl_recursive_lock_define
 160 #define __libc_lock_define_initialized_recursive  gl_recursive_lock_define_initialized
 161 #define __libc_lock_init_recursive                gl_recursive_lock_init
 162 #define __libc_lock_lock_recursive                gl_recursive_lock_lock
 163 #define __libc_lock_unlock_recursive              gl_recursive_lock_unlock
 164 #define glthread_in_use  libintl_thread_in_use
 165 #define glthread_lock_init_func     libintl_lock_init_func
 166 #define glthread_lock_lock_func     libintl_lock_lock_func
 167 #define glthread_lock_unlock_func   libintl_lock_unlock_func
 168 #define glthread_lock_destroy_func  libintl_lock_destroy_func
 169 #define glthread_rwlock_init_multithreaded     libintl_rwlock_init_multithreaded
 170 #define glthread_rwlock_init_func              libintl_rwlock_init_func
 171 #define glthread_rwlock_rdlock_multithreaded   libintl_rwlock_rdlock_multithreaded
 172 #define glthread_rwlock_rdlock_func            libintl_rwlock_rdlock_func
 173 #define glthread_rwlock_wrlock_multithreaded   libintl_rwlock_wrlock_multithreaded
 174 #define glthread_rwlock_wrlock_func            libintl_rwlock_wrlock_func
 175 #define glthread_rwlock_unlock_multithreaded   libintl_rwlock_unlock_multithreaded
 176 #define glthread_rwlock_unlock_func            libintl_rwlock_unlock_func
 177 #define glthread_rwlock_destroy_multithreaded  libintl_rwlock_destroy_multithreaded
 178 #define glthread_rwlock_destroy_func           libintl_rwlock_destroy_func
 179 #define glthread_recursive_lock_init_multithreaded     libintl_recursive_lock_init_multithreaded
 180 #define glthread_recursive_lock_init_func              libintl_recursive_lock_init_func
 181 #define glthread_recursive_lock_lock_multithreaded     libintl_recursive_lock_lock_multithreaded
 182 #define glthread_recursive_lock_lock_func              libintl_recursive_lock_lock_func
 183 #define glthread_recursive_lock_unlock_multithreaded   libintl_recursive_lock_unlock_multithreaded
 184 #define glthread_recursive_lock_unlock_func            libintl_recursive_lock_unlock_func
 185 #define glthread_recursive_lock_destroy_multithreaded  libintl_recursive_lock_destroy_multithreaded
 186 #define glthread_recursive_lock_destroy_func           libintl_recursive_lock_destroy_func
 187 #define glthread_once_func            libintl_once_func
 188 #define glthread_once_singlethreaded  libintl_once_singlethreaded
 189 #define glthread_once_multithreaded   libintl_once_multithreaded
 190 ])
 191 ])
 192
 193
 194 dnl Checks for the core files of the intl subdirectory:
 195 dnl   dcigettext.c
 196 dnl   eval-plural.h
 197 dnl   explodename.c
 198 dnl   finddomain.c
 199 dnl   gettextP.h
 200 dnl   gmo.h
 201 dnl   hash-string.h hash-string.c
 202 dnl   l10nflist.c
 203 dnl   libgnuintl.h.in (except the *printf stuff)
 204 dnl   loadinfo.h
 205 dnl   loadmsgcat.c
 206 dnl   localealias.c
 207 dnl   log.c
 208 dnl   plural-exp.h plural-exp.c
 209 dnl   plural.y
 210 dnl Used by libglocale.
 211 AC_DEFUN([gt_INTL_SUBDIR_CORE],
 212 [
 213   AC_REQUIRE([AC_C_INLINE])dnl
 214   AC_REQUIRE([AC_TYPE_SIZE_T])dnl
 215   AC_REQUIRE([gl_AC_HEADER_STDINT_H])
 216   AC_REQUIRE([AC_FUNC_ALLOCA])dnl
 217   AC_REQUIRE([AC_FUNC_MMAP])dnl
 218   AC_REQUIRE([gt_INTDIV0])dnl
 219   AC_REQUIRE([gl_AC_TYPE_UINTMAX_T])dnl
 220   AC_REQUIRE([gt_INTTYPES_PRI])dnl
 221   AC_REQUIRE([gl_LOCK])dnl
 222
 223   AC_TRY_LINK(
 224     [int foo (int a) { a = __builtin_expect (a, 10); return a == 10 ? 0 : 1; }],
 225     [],
 226     [AC_DEFINE([HAVE_BUILTIN_EXPECT], [1],
 227        [Define to 1 if the compiler understands __builtin_expect.])])
 228
 229   AC_CHECK_HEADERS([argz.h inttypes.h limits.h unistd.h sys/param.h])
 230   AC_CHECK_FUNCS([getcwd getegid geteuid getgid getuid mempcpy munmap \
 231     stpcpy strcasecmp strdup strtoul tsearch uselocale argz_count \
 232     argz_stringify argz_next __fsetlocking])
 233
 234   dnl Use the *_unlocked functions only if they are declared.
 235   dnl (because some of them were defined without being declared in Solaris
 236   dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
 237   dnl on Solaris 2.5.1 to run on Solaris 2.6).
 238   dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
 239   gt_CHECK_DECL([feof_unlocked], [#include <stdio.h>])
 240   gt_CHECK_DECL([fgets_unlocked], [#include <stdio.h>])
 241
 242   AM_ICONV
 243
 244   dnl intl/plural.c is generated from intl/plural.y. It requires bison,
 245   dnl because plural.y uses bison specific features. It requires at least
 246   dnl bison-1.26 because earlier versions generate a plural.c that doesn't
 247   dnl compile.
 248   dnl bison is only needed for the maintainer (who touches plural.y). But in
 249   dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
 250   dnl the rule in general Makefile. Now, some people carelessly touch the
 251   dnl files or have a broken "make" program, hence the plural.c rule will
 252   dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
 253   dnl present or too old.
 254   AC_CHECK_PROGS([INTLBISON], [bison])
 255   if test -z "$INTLBISON"; then
 256     ac_verc_fail=yes
 257   else
 258     dnl Found it, now check the version.
 259     AC_MSG_CHECKING([version of bison])
 260 changequote(<<,>>)dnl
 261     ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
 262     case $ac_prog_version in
 263       '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
 264       1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
 265 changequote([,])dnl
 266          ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
 267       *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
 268     esac
 269     AC_MSG_RESULT([$ac_prog_version])
 270   fi
 271   if test $ac_verc_fail = yes; then
 272     INTLBISON=:
 273   fi
 274 ])
 275
 276
 277 dnl gt_CHECK_DECL(FUNC, INCLUDES)
 278 dnl Check whether a function is declared.
 279 AC_DEFUN([gt_CHECK_DECL],
 280 [
 281   AC_CACHE_CHECK([whether $1 is declared], [ac_cv_have_decl_$1],
 282     [AC_TRY_COMPILE([$2], [
 283 #ifndef $1
 284   char *p = (char *) $1;
 285 #endif
 286 ], ac_cv_have_decl_$1=yes, ac_cv_have_decl_$1=no)])
 287   if test $ac_cv_have_decl_$1 = yes; then
 288     gt_value=1
 289   else
 290     gt_value=0
 291   fi
 292   AC_DEFINE_UNQUOTED([HAVE_DECL_]translit($1, [a-z], [A-Z]), [$gt_value],
 293     [Define to 1 if you have the declaration of `$1', and to 0 if you don't.])
 294 ])