intl.m4 9.7 KB

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  1. # intl.m4 serial 3 (gettext-0.16)
  2. dnl Copyright (C) 1995-2006 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. dnl Authors:
  16. dnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000.
  17. dnl Bruno Haible <haible@clisp.cons.org>, 2000-2006.
  18. AC_PREREQ(2.52)
  19. dnl Checks for all prerequisites of the intl subdirectory,
  20. dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS,
  21. dnl USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL.
  22. AC_DEFUN([AM_INTL_SUBDIR],
  23. [
  24. AC_REQUIRE([AC_PROG_INSTALL])dnl
  25. AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
  26. AC_REQUIRE([AC_PROG_CC])dnl
  27. AC_REQUIRE([AC_CANONICAL_HOST])dnl
  28. AC_REQUIRE([gt_GLIBC2])dnl
  29. AC_REQUIRE([AC_PROG_RANLIB])dnl
  30. AC_REQUIRE([gl_VISIBILITY])dnl
  31. AC_REQUIRE([gt_INTL_SUBDIR_CORE])dnl
  32. AC_REQUIRE([AC_TYPE_LONG_LONG_INT])dnl
  33. AC_REQUIRE([gt_TYPE_LONGDOUBLE])dnl
  34. AC_REQUIRE([gt_TYPE_WCHAR_T])dnl
  35. AC_REQUIRE([gt_TYPE_WINT_T])dnl
  36. AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
  37. AC_REQUIRE([gt_TYPE_INTMAX_T])
  38. AC_REQUIRE([gt_PRINTF_POSIX])
  39. AC_REQUIRE([gl_GLIBC21])dnl
  40. AC_REQUIRE([gl_XSIZE])dnl
  41. AC_REQUIRE([gt_INTL_MACOSX])dnl
  42. AC_CHECK_TYPE([ptrdiff_t], ,
  43. [AC_DEFINE([ptrdiff_t], [long],
  44. [Define as the type of the result of subtracting two pointers, if the system doesn't define it.])
  45. ])
  46. AC_CHECK_HEADERS([stddef.h stdlib.h string.h])
  47. AC_CHECK_FUNCS([asprintf fwprintf putenv setenv setlocale snprintf wcslen])
  48. dnl Use the _snprintf function only if it is declared (because on NetBSD it
  49. dnl is defined as a weak alias of snprintf; we prefer to use the latter).
  50. gt_CHECK_DECL(_snprintf, [#include <stdio.h>])
  51. gt_CHECK_DECL(_snwprintf, [#include <stdio.h>])
  52. dnl Use the *_unlocked functions only if they are declared.
  53. dnl (because some of them were defined without being declared in Solaris
  54. dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
  55. dnl on Solaris 2.5.1 to run on Solaris 2.6).
  56. dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
  57. gt_CHECK_DECL(getc_unlocked, [#include <stdio.h>])
  58. case $gt_cv_func_printf_posix in
  59. *yes) HAVE_POSIX_PRINTF=1 ;;
  60. *) HAVE_POSIX_PRINTF=0 ;;
  61. esac
  62. AC_SUBST([HAVE_POSIX_PRINTF])
  63. if test "$ac_cv_func_asprintf" = yes; then
  64. HAVE_ASPRINTF=1
  65. else
  66. HAVE_ASPRINTF=0
  67. fi
  68. AC_SUBST([HAVE_ASPRINTF])
  69. if test "$ac_cv_func_snprintf" = yes; then
  70. HAVE_SNPRINTF=1
  71. else
  72. HAVE_SNPRINTF=0
  73. fi
  74. AC_SUBST([HAVE_SNPRINTF])
  75. if test "$ac_cv_func_wprintf" = yes; then
  76. HAVE_WPRINTF=1
  77. else
  78. HAVE_WPRINTF=0
  79. fi
  80. AC_SUBST([HAVE_WPRINTF])
  81. AM_LANGINFO_CODESET
  82. gt_LC_MESSAGES
  83. dnl Compilation on mingw and Cygwin needs special Makefile rules, because
  84. dnl 1. when we install a shared library, we must arrange to export
  85. dnl auxiliary pointer variables for every exported variable,
  86. dnl 2. when we install a shared library and a static library simultaneously,
  87. dnl the include file specifies __declspec(dllimport) and therefore we
  88. dnl must arrange to define the auxiliary pointer variables for the
  89. dnl exported variables _also_ in the static library.
  90. if test "$enable_shared" = yes; then
  91. case "$host_os" in
  92. cygwin*) is_woe32dll=yes ;;
  93. *) is_woe32dll=no ;;
  94. esac
  95. else
  96. is_woe32dll=no
  97. fi
  98. WOE32DLL=$is_woe32dll
  99. AC_SUBST([WOE32DLL])
  100. dnl Rename some macros and functions used for locking.
  101. AH_BOTTOM([
  102. #define __libc_lock_t gl_lock_t
  103. #define __libc_lock_define gl_lock_define
  104. #define __libc_lock_define_initialized gl_lock_define_initialized
  105. #define __libc_lock_init gl_lock_init
  106. #define __libc_lock_lock gl_lock_lock
  107. #define __libc_lock_unlock gl_lock_unlock
  108. #define __libc_lock_recursive_t gl_recursive_lock_t
  109. #define __libc_lock_define_recursive gl_recursive_lock_define
  110. #define __libc_lock_define_initialized_recursive gl_recursive_lock_define_initialized
  111. #define __libc_lock_init_recursive gl_recursive_lock_init
  112. #define __libc_lock_lock_recursive gl_recursive_lock_lock
  113. #define __libc_lock_unlock_recursive gl_recursive_lock_unlock
  114. #define glthread_in_use libintl_thread_in_use
  115. #define glthread_lock_init libintl_lock_init
  116. #define glthread_lock_lock libintl_lock_lock
  117. #define glthread_lock_unlock libintl_lock_unlock
  118. #define glthread_lock_destroy libintl_lock_destroy
  119. #define glthread_rwlock_init libintl_rwlock_init
  120. #define glthread_rwlock_rdlock libintl_rwlock_rdlock
  121. #define glthread_rwlock_wrlock libintl_rwlock_wrlock
  122. #define glthread_rwlock_unlock libintl_rwlock_unlock
  123. #define glthread_rwlock_destroy libintl_rwlock_destroy
  124. #define glthread_recursive_lock_init libintl_recursive_lock_init
  125. #define glthread_recursive_lock_lock libintl_recursive_lock_lock
  126. #define glthread_recursive_lock_unlock libintl_recursive_lock_unlock
  127. #define glthread_recursive_lock_destroy libintl_recursive_lock_destroy
  128. #define glthread_once libintl_once
  129. #define glthread_once_call libintl_once_call
  130. #define glthread_once_singlethreaded libintl_once_singlethreaded
  131. ])
  132. ])
  133. dnl Checks for the core files of the intl subdirectory:
  134. dnl dcigettext.c
  135. dnl eval-plural.h
  136. dnl explodename.c
  137. dnl finddomain.c
  138. dnl gettextP.h
  139. dnl gmo.h
  140. dnl hash-string.h hash-string.c
  141. dnl l10nflist.c
  142. dnl libgnuintl.h.in (except the *printf stuff)
  143. dnl loadinfo.h
  144. dnl loadmsgcat.c
  145. dnl localealias.c
  146. dnl log.c
  147. dnl plural-exp.h plural-exp.c
  148. dnl plural.y
  149. dnl Used by libglocale.
  150. AC_DEFUN([gt_INTL_SUBDIR_CORE],
  151. [
  152. AC_REQUIRE([AC_C_INLINE])dnl
  153. AC_REQUIRE([AC_TYPE_SIZE_T])dnl
  154. AC_REQUIRE([gl_AC_HEADER_STDINT_H])
  155. AC_REQUIRE([AC_FUNC_ALLOCA])dnl
  156. AC_REQUIRE([AC_FUNC_MMAP])dnl
  157. AC_REQUIRE([gt_INTDIV0])dnl
  158. AC_REQUIRE([gl_AC_TYPE_UINTMAX_T])dnl
  159. AC_REQUIRE([gt_INTTYPES_PRI])dnl
  160. AC_REQUIRE([gl_LOCK])dnl
  161. AC_TRY_LINK(
  162. [int foo (int a) { a = __builtin_expect (a, 10); return a == 10 ? 0 : 1; }],
  163. [],
  164. [AC_DEFINE([HAVE_BUILTIN_EXPECT], 1,
  165. [Define to 1 if the compiler understands __builtin_expect.])])
  166. AC_CHECK_HEADERS([argz.h inttypes.h limits.h unistd.h sys/param.h])
  167. AC_CHECK_FUNCS([getcwd getegid geteuid getgid getuid mempcpy munmap \
  168. stpcpy strcasecmp strdup strtoul tsearch argz_count argz_stringify \
  169. argz_next __fsetlocking])
  170. dnl Use the *_unlocked functions only if they are declared.
  171. dnl (because some of them were defined without being declared in Solaris
  172. dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
  173. dnl on Solaris 2.5.1 to run on Solaris 2.6).
  174. dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
  175. gt_CHECK_DECL(feof_unlocked, [#include <stdio.h>])
  176. gt_CHECK_DECL(fgets_unlocked, [#include <stdio.h>])
  177. AM_ICONV
  178. dnl glibc >= 2.4 has a NL_LOCALE_NAME macro when _GNU_SOURCE is defined,
  179. dnl and a _NL_LOCALE_NAME macro always.
  180. AC_CACHE_CHECK([for NL_LOCALE_NAME macro], gt_cv_nl_locale_name,
  181. [AC_TRY_LINK([#include <langinfo.h>
  182. #include <locale.h>],
  183. [char* cs = nl_langinfo(_NL_LOCALE_NAME(LC_MESSAGES));],
  184. gt_cv_nl_locale_name=yes,
  185. gt_cv_nl_locale_name=no)
  186. ])
  187. if test $gt_cv_nl_locale_name = yes; then
  188. AC_DEFINE(HAVE_NL_LOCALE_NAME, 1,
  189. [Define if you have <langinfo.h> and it defines the NL_LOCALE_NAME macro if _GNU_SOURCE is defined.])
  190. fi
  191. dnl intl/plural.c is generated from intl/plural.y. It requires bison,
  192. dnl because plural.y uses bison specific features. It requires at least
  193. dnl bison-1.26 because earlier versions generate a plural.c that doesn't
  194. dnl compile.
  195. dnl bison is only needed for the maintainer (who touches plural.y). But in
  196. dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
  197. dnl the rule in general Makefile. Now, some people carelessly touch the
  198. dnl files or have a broken "make" program, hence the plural.c rule will
  199. dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
  200. dnl present or too old.
  201. AC_CHECK_PROGS([INTLBISON], [bison])
  202. if test -z "$INTLBISON"; then
  203. ac_verc_fail=yes
  204. else
  205. dnl Found it, now check the version.
  206. AC_MSG_CHECKING([version of bison])
  207. changequote(<<,>>)dnl
  208. ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
  209. case $ac_prog_version in
  210. '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
  211. 1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
  212. changequote([,])dnl
  213. ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
  214. *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
  215. esac
  216. AC_MSG_RESULT([$ac_prog_version])
  217. fi
  218. if test $ac_verc_fail = yes; then
  219. INTLBISON=:
  220. fi
  221. ])
  222. dnl gt_CHECK_DECL(FUNC, INCLUDES)
  223. dnl Check whether a function is declared.
  224. AC_DEFUN([gt_CHECK_DECL],
  225. [
  226. AC_CACHE_CHECK([whether $1 is declared], ac_cv_have_decl_$1,
  227. [AC_TRY_COMPILE([$2], [
  228. #ifndef $1
  229. char *p = (char *) $1;
  230. #endif
  231. ], ac_cv_have_decl_$1=yes, ac_cv_have_decl_$1=no)])
  232. if test $ac_cv_have_decl_$1 = yes; then
  233. gt_value=1
  234. else
  235. gt_value=0
  236. fi
  237. AC_DEFINE_UNQUOTED([HAVE_DECL_]translit($1, [a-z], [A-Z]), [$gt_value],
  238. [Define to 1 if you have the declaration of `$1', and to 0 if you don't.])
  239. ])