| 1 | # locale_h.m4 serial 28
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| 2 | dnl Copyright (C) 2007, 2009-2022 Free Software Foundation, Inc.
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| 3 | dnl This file is free software; the Free Software Foundation
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| 4 | dnl gives unlimited permission to copy and/or distribute it,
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| 5 | dnl with or without modifications, as long as this notice is preserved.
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| 6 |
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| 7 | AC_DEFUN_ONCE([gl_LOCALE_H],
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| 8 | [
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| 9 | dnl Ensure to expand the default settings once only, before all statements
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| 10 | dnl that occur in other macros.
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| 11 | AC_REQUIRE([gl_LOCALE_H_DEFAULTS])
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| 12 |
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| 13 | dnl Persuade glibc <locale.h> to define locale_t and the int_p_*, int_n_*
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| 14 | dnl members of 'struct lconv'.
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| 15 | AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
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| 16 |
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| 17 | dnl If <stddef.h> is replaced, then <locale.h> must also be replaced.
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| 18 | AC_REQUIRE([gl_STDDEF_H])
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| 19 |
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| 20 | AC_REQUIRE([gl_LOCALE_T])
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| 21 |
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| 22 | dnl Solaris 11.0 defines the int_p_*, int_n_* members of 'struct lconv'
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| 23 | dnl only if _LCONV_C99 is defined.
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| 24 | AC_REQUIRE([AC_CANONICAL_HOST])
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| 25 | case "$host_os" in
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| 26 | solaris*)
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| 27 | AC_DEFINE([_LCONV_C99], [1], [Define to 1 on Solaris.])
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| 28 | ;;
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| 29 | esac
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| 30 |
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| 31 | AC_CACHE_CHECK([whether locale.h conforms to POSIX:2001],
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| 32 | [gl_cv_header_locale_h_posix2001],
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| 33 | [AC_COMPILE_IFELSE(
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| 34 | [AC_LANG_PROGRAM(
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| 35 | [[#include <locale.h>
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| 36 | int x = LC_MESSAGES;
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| 37 | int y = sizeof (((struct lconv *) 0)->decimal_point);]],
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| 38 | [[]])],
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| 39 | [gl_cv_header_locale_h_posix2001=yes],
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| 40 | [gl_cv_header_locale_h_posix2001=no])])
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| 41 |
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| 42 | dnl Check whether 'struct lconv' is complete.
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| 43 | dnl Bionic libc's 'struct lconv' is just a dummy.
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| 44 | dnl On OpenBSD 4.9, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 9, Cygwin 1.5.x,
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| 45 | dnl mingw, MSVC 9, it lacks the int_p_* and int_n_* members.
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| 46 | AC_CACHE_CHECK([whether struct lconv is properly defined],
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| 47 | [gl_cv_sys_struct_lconv_ok],
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| 48 | [AC_COMPILE_IFELSE(
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| 49 | [AC_LANG_PROGRAM(
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| 50 | [[#include <locale.h>
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| 51 | struct lconv l;
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| 52 | int x = sizeof (l.decimal_point);
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| 53 | int y = sizeof (l.int_p_cs_precedes);]],
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| 54 | [[]])],
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| 55 | [gl_cv_sys_struct_lconv_ok=yes],
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| 56 | [gl_cv_sys_struct_lconv_ok=no])
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| 57 | ])
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| 58 | if test $gl_cv_sys_struct_lconv_ok = no; then
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| 59 | dnl On native Windows with MSVC, merely define these member names as macros.
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| 60 | dnl This avoids trouble in C++ mode.
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| 61 | case "$host_os" in
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| 62 | mingw*)
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| 63 | AC_EGREP_CPP([Special], [
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| 64 | #ifdef _MSC_VER
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| 65 | Special
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| 66 | #endif
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| 67 | ],
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| 68 | [],
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| 69 | [REPLACE_STRUCT_LCONV=1])
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| 70 | ;;
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| 71 | *) REPLACE_STRUCT_LCONV=1 ;;
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| 72 | esac
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| 73 | fi
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| 74 |
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| 75 | dnl <locale.h> is always overridden, because of GNULIB_POSIXCHECK.
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| 76 | gl_NEXT_HEADERS([locale.h])
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| 77 |
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| 78 | dnl Check for declarations of anything we want to poison if the
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| 79 | dnl corresponding gnulib module is not in use.
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| 80 | gl_WARN_ON_USE_PREPARE([[#include <locale.h>
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| 81 | /* Some systems provide declarations in a non-standard header. */
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| 82 | #if HAVE_XLOCALE_H
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| 83 | # include <xlocale.h>
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| 84 | #endif
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| 85 | ]],
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| 86 | [setlocale newlocale duplocale freelocale])
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| 87 | ])
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| 88 |
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| 89 | dnl Checks to determine whether the system has the locale_t type,
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| 90 | dnl and how to obtain it.
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| 91 | AC_DEFUN([gl_LOCALE_T],
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| 92 | [
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| 93 | dnl Persuade glibc and Solaris <locale.h> to define locale_t.
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| 94 | AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
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| 95 |
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| 96 | dnl Check whether use of locale_t requires inclusion of <xlocale.h>,
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| 97 | dnl e.g. on Mac OS X 10.5. If <locale.h> does not define locale_t by
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| 98 | dnl itself, we assume that <xlocale.h> will do so.
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| 99 | AC_CACHE_CHECK([whether locale.h defines locale_t],
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| 100 | [gl_cv_header_locale_has_locale_t],
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| 101 | [AC_COMPILE_IFELSE(
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| 102 | [AC_LANG_PROGRAM(
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| 103 | [[#include <locale.h>
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| 104 | locale_t x;]],
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| 105 | [[]])],
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| 106 | [gl_cv_header_locale_has_locale_t=yes],
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| 107 | [gl_cv_header_locale_has_locale_t=no])
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| 108 | ])
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| 109 |
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| 110 | dnl Check for <xlocale.h>.
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| 111 | AC_CHECK_HEADERS_ONCE([xlocale.h])
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| 112 | if test $ac_cv_header_xlocale_h = yes; then
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| 113 | HAVE_XLOCALE_H=1
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| 114 | if test $gl_cv_header_locale_has_locale_t = yes; then
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| 115 | gl_cv_header_locale_h_needs_xlocale_h=no
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| 116 | else
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| 117 | gl_cv_header_locale_h_needs_xlocale_h=yes
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| 118 | fi
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| 119 | HAVE_LOCALE_T=1
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| 120 | else
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| 121 | HAVE_XLOCALE_H=0
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| 122 | gl_cv_header_locale_h_needs_xlocale_h=no
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| 123 | if test $gl_cv_header_locale_has_locale_t = yes; then
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| 124 | HAVE_LOCALE_T=1
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| 125 | else
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| 126 | HAVE_LOCALE_T=0
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| 127 | fi
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| 128 | fi
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| 129 | AC_SUBST([HAVE_XLOCALE_H])
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| 130 | ])
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| 131 |
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| 132 | # gl_LOCALE_MODULE_INDICATOR([modulename])
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| 133 | # sets the shell variable that indicates the presence of the given module
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| 134 | # to a C preprocessor expression that will evaluate to 1.
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| 135 | # This macro invocation must not occur in macros that are AC_REQUIREd.
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| 136 | AC_DEFUN([gl_LOCALE_MODULE_INDICATOR],
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| 137 | [
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| 138 | dnl Ensure to expand the default settings once only.
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| 139 | gl_LOCALE_H_REQUIRE_DEFAULTS
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| 140 | gl_MODULE_INDICATOR_SET_VARIABLE([$1])
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| 141 | dnl Define it also as a C macro, for the benefit of the unit tests.
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| 142 | gl_MODULE_INDICATOR_FOR_TESTS([$1])
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| 143 | ])
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| 144 |
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| 145 | # Initializes the default values for AC_SUBSTed shell variables.
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| 146 | # This macro must not be AC_REQUIREd. It must only be invoked, and only
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| 147 | # outside of macros or in macros that are not AC_REQUIREd.
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| 148 | AC_DEFUN([gl_LOCALE_H_REQUIRE_DEFAULTS],
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| 149 | [
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| 150 | m4_defun(GL_MODULE_INDICATOR_PREFIX[_LOCALE_H_MODULE_INDICATOR_DEFAULTS], [
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| 151 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOCALECONV])
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| 152 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SETLOCALE])
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| 153 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SETLOCALE_NULL])
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| 154 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_DUPLOCALE])
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| 155 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOCALENAME])
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| 156 | ])
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| 157 | m4_require(GL_MODULE_INDICATOR_PREFIX[_LOCALE_H_MODULE_INDICATOR_DEFAULTS])
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| 158 | AC_REQUIRE([gl_LOCALE_H_DEFAULTS])
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| 159 | ])
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| 160 |
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| 161 | AC_DEFUN([gl_LOCALE_H_DEFAULTS],
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| 162 | [
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| 163 | dnl Assume proper GNU behavior unless another module says otherwise.
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| 164 | HAVE_NEWLOCALE=1; AC_SUBST([HAVE_NEWLOCALE])
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| 165 | HAVE_DUPLOCALE=1; AC_SUBST([HAVE_DUPLOCALE])
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| 166 | HAVE_FREELOCALE=1; AC_SUBST([HAVE_FREELOCALE])
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| 167 | REPLACE_LOCALECONV=0; AC_SUBST([REPLACE_LOCALECONV])
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| 168 | REPLACE_SETLOCALE=0; AC_SUBST([REPLACE_SETLOCALE])
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| 169 | REPLACE_NEWLOCALE=0; AC_SUBST([REPLACE_NEWLOCALE])
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| 170 | REPLACE_DUPLOCALE=0; AC_SUBST([REPLACE_DUPLOCALE])
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| 171 | REPLACE_FREELOCALE=0; AC_SUBST([REPLACE_FREELOCALE])
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| 172 | REPLACE_STRUCT_LCONV=0; AC_SUBST([REPLACE_STRUCT_LCONV])
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| 173 | LOCALENAME_ENHANCE_LOCALE_FUNCS=0; AC_SUBST([LOCALENAME_ENHANCE_LOCALE_FUNCS])
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| 174 | ])
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