1 # locale_h.m4 serial 16
2 dnl Copyright (C) 2007, 2009-2012 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 and the int_p_*, int_n_*
14 dnl members of 'struct lconv'.
15 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
17 dnl If <stddef.h> is replaced, then <locale.h> must also be replaced.
18 AC_REQUIRE([gl_STDDEF_H])
20 dnl Solaris 11 2011-11 defines the int_p_*, int_n_* members of 'struct lconv'
21 dnl only if _LCONV_C99 is defined.
22 AC_REQUIRE([AC_CANONICAL_HOST])
25 AC_DEFINE([_LCONV_C99], [1], [Define to 1 on Solaris.])
29 AC_CACHE_CHECK([whether locale.h conforms to POSIX:2001],
30 [gl_cv_header_locale_h_posix2001],
35 int y = sizeof (((struct lconv *) 0)->decimal_point);]],
37 [gl_cv_header_locale_h_posix2001=yes],
38 [gl_cv_header_locale_h_posix2001=no])])
40 dnl Check for <xlocale.h>.
41 AC_CHECK_HEADERS_ONCE([xlocale.h])
42 if test $ac_cv_header_xlocale_h = yes; then
44 dnl Check whether use of locale_t requires inclusion of <xlocale.h>,
45 dnl e.g. on MacOS X 10.5. If <locale.h> does not define locale_t by
46 dnl itself, we assume that <xlocale.h> will do so.
47 AC_CACHE_CHECK([whether locale.h defines locale_t],
48 [gl_cv_header_locale_has_locale_t],
54 [gl_cv_header_locale_has_locale_t=yes],
55 [gl_cv_header_locale_has_locale_t=no])
57 if test $gl_cv_header_locale_has_locale_t = yes; then
58 gl_cv_header_locale_h_needs_xlocale_h=no
60 gl_cv_header_locale_h_needs_xlocale_h=yes
64 gl_cv_header_locale_h_needs_xlocale_h=no
66 AC_SUBST([HAVE_XLOCALE_H])
68 dnl Check whether 'struct lconv' is well-defined.
69 dnl Bionic libc's 'struct lconv' is just a dummy.
70 AC_CACHE_CHECK([whether struct lconv is properly defined],
71 [gl_cv_sys_struct_lconv_ok],
76 int x = sizeof (l.decimal_point);]],
78 [gl_cv_sys_struct_lconv_ok=yes],
79 [gl_cv_sys_struct_lconv_ok=no])
81 if test $gl_cv_sys_struct_lconv_ok = no; then
82 REPLACE_STRUCT_LCONV=1
85 dnl <locale.h> is always overridden, because of GNULIB_POSIXCHECK.
86 gl_NEXT_HEADERS([locale.h])
88 dnl Check for declarations of anything we want to poison if the
89 dnl corresponding gnulib module is not in use.
90 gl_WARN_ON_USE_PREPARE([[#include <locale.h>
91 /* Some systems provide declarations in a non-standard header. */
96 [setlocale duplocale])
99 AC_DEFUN([gl_LOCALE_MODULE_INDICATOR],
101 dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
102 AC_REQUIRE([gl_LOCALE_H_DEFAULTS])
103 gl_MODULE_INDICATOR_SET_VARIABLE([$1])
104 dnl Define it also as a C macro, for the benefit of the unit tests.
105 gl_MODULE_INDICATOR_FOR_TESTS([$1])
108 AC_DEFUN([gl_LOCALE_H_DEFAULTS],
110 GNULIB_SETLOCALE=0; AC_SUBST([GNULIB_SETLOCALE])
111 GNULIB_DUPLOCALE=0; AC_SUBST([GNULIB_DUPLOCALE])
112 dnl Assume proper GNU behavior unless another module says otherwise.
113 HAVE_DUPLOCALE=1; AC_SUBST([HAVE_DUPLOCALE])
114 REPLACE_SETLOCALE=0; AC_SUBST([REPLACE_SETLOCALE])
115 REPLACE_DUPLOCALE=0; AC_SUBST([REPLACE_DUPLOCALE])
116 REPLACE_STRUCT_LCONV=0; AC_SUBST([REPLACE_STRUCT_LCONV])