2 dnl Copyright (C) 2007, 2009, 2010 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.
7 AC_DEFUN([gl_LOCALE_H],
9 dnl Use AC_REQUIRE here, so that the default behavior below is expanded
10 dnl once only, before all statements that occur in other macros.
11 AC_REQUIRE([gl_LOCALE_H_DEFAULTS])
13 dnl Persuade glibc <locale.h> to define locale_t.
14 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
16 dnl If <stddef.h> is replaced, then <locale.h> must also be replaced.
17 AC_REQUIRE([gl_STDDEF_H])
19 AC_CACHE_CHECK([whether locale.h conforms to POSIX:2001],
20 [gl_cv_header_locale_h_posix2001],
21 [AC_TRY_COMPILE([#include <locale.h>
22 int x = LC_MESSAGES;], [],
23 [gl_cv_header_locale_h_posix2001=yes],
24 [gl_cv_header_locale_h_posix2001=no])])
26 dnl Check for <xlocale.h>.
27 AC_CHECK_HEADERS_ONCE([xlocale.h])
28 if test $ac_cv_header_xlocale_h = yes; then
30 dnl Check whether use of locale_t requires inclusion of <xlocale.h>,
31 dnl e.g. on MacOS X 10.5. If <locale.h> does not define locale_t by
32 dnl itself, we assume that <xlocale.h> will do so.
33 AC_CACHE_CHECK([whether locale.h defines locale_t],
34 [gl_cv_header_locale_has_locale_t],
35 [AC_TRY_COMPILE([#include <locale.h>
37 [gl_cv_header_locale_has_locale_t=yes],
38 [gl_cv_header_locale_has_locale_t=no])
40 if test $gl_cv_header_locale_has_locale_t = yes; then
41 gl_cv_header_locale_h_needs_xlocale_h=no
43 gl_cv_header_locale_h_needs_xlocale_h=yes
47 gl_cv_header_locale_h_needs_xlocale_h=no
49 AC_SUBST([HAVE_XLOCALE_H])
51 dnl <locale.h> is always overridden, because of GNULIB_POSIXCHECK.
52 gl_CHECK_NEXT_HEADERS([locale.h])
54 if test -n "$STDDEF_H" \
55 || test $gl_cv_header_locale_h_posix2001 = no \
56 || test $gl_cv_header_locale_h_needs_xlocale_h = yes; then
61 dnl Unconditionally enables the replacement of <locale.h>.
62 AC_DEFUN([gl_REPLACE_LOCALE_H],
64 dnl This is a no-op, because <locale.h> is always overridden.
68 AC_DEFUN([gl_LOCALE_MODULE_INDICATOR],
70 dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
71 AC_REQUIRE([gl_LOCALE_H_DEFAULTS])
72 GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
75 AC_DEFUN([gl_LOCALE_H_DEFAULTS],
77 GNULIB_DUPLOCALE=0; AC_SUBST([GNULIB_DUPLOCALE])
78 dnl Assume proper GNU behavior unless another module says otherwise.
79 REPLACE_DUPLOCALE=0; AC_SUBST([REPLACE_DUPLOCALE])