1# locale_h.m4 serial 28 2dnl Copyright (C) 2007, 2009-2021 Free Software Foundation, Inc. 3dnl This file is free software; the Free Software Foundation 4dnl gives unlimited permission to copy and/or distribute it, 5dnl with or without modifications, as long as this notice is preserved. 6 7AC_DEFUN_ONCE([gl_LOCALE_H], 8[ 9 dnl Ensure to expand the default settings once only, before all statements 10 dnl that occur in other macros. 11 AC_REQUIRE([gl_LOCALE_H_DEFAULTS]) 12 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]) 16 17 dnl If <stddef.h> is replaced, then <locale.h> must also be replaced. 18 AC_REQUIRE([gl_STDDEF_H]) 19 20 AC_REQUIRE([gl_LOCALE_T]) 21 22 dnl Solaris 11.0 defines the int_p_*, int_n_* members of 'struct lconv' 23 dnl only if _LCONV_C99 is defined. 24 AC_REQUIRE([AC_CANONICAL_HOST]) 25 case "$host_os" in 26 solaris*) 27 AC_DEFINE([_LCONV_C99], [1], [Define to 1 on Solaris.]) 28 ;; 29 esac 30 31 AC_CACHE_CHECK([whether locale.h conforms to POSIX:2001], 32 [gl_cv_header_locale_h_posix2001], 33 [AC_COMPILE_IFELSE( 34 [AC_LANG_PROGRAM( 35 [[#include <locale.h> 36 int x = LC_MESSAGES; 37 int y = sizeof (((struct lconv *) 0)->decimal_point);]], 38 [[]])], 39 [gl_cv_header_locale_h_posix2001=yes], 40 [gl_cv_header_locale_h_posix2001=no])]) 41 42 dnl Check whether 'struct lconv' is complete. 43 dnl Bionic libc's 'struct lconv' is just a dummy. 44 dnl On OpenBSD 4.9, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 9, Cygwin 1.5.x, 45 dnl mingw, MSVC 9, it lacks the int_p_* and int_n_* members. 46 AC_CACHE_CHECK([whether struct lconv is properly defined], 47 [gl_cv_sys_struct_lconv_ok], 48 [AC_COMPILE_IFELSE( 49 [AC_LANG_PROGRAM( 50 [[#include <locale.h> 51 struct lconv l; 52 int x = sizeof (l.decimal_point); 53 int y = sizeof (l.int_p_cs_precedes);]], 54 [[]])], 55 [gl_cv_sys_struct_lconv_ok=yes], 56 [gl_cv_sys_struct_lconv_ok=no]) 57 ]) 58 if test $gl_cv_sys_struct_lconv_ok = no; then 59 dnl On native Windows with MSVC, merely define these member names as macros. 60 dnl This avoids trouble in C++ mode. 61 case "$host_os" in 62 mingw*) 63 AC_EGREP_CPP([Special], [ 64#ifdef _MSC_VER 65 Special 66#endif 67 ], 68 [], 69 [REPLACE_STRUCT_LCONV=1]) 70 ;; 71 *) REPLACE_STRUCT_LCONV=1 ;; 72 esac 73 fi 74 75 dnl <locale.h> is always overridden, because of GNULIB_POSIXCHECK. 76 gl_NEXT_HEADERS([locale.h]) 77 78 dnl Check for declarations of anything we want to poison if the 79 dnl corresponding gnulib module is not in use. 80 gl_WARN_ON_USE_PREPARE([[#include <locale.h> 81/* Some systems provide declarations in a non-standard header. */ 82#if HAVE_XLOCALE_H 83# include <xlocale.h> 84#endif 85 ]], 86 [setlocale newlocale duplocale freelocale]) 87]) 88 89dnl Checks to determine whether the system has the locale_t type, 90dnl and how to obtain it. 91AC_DEFUN([gl_LOCALE_T], 92[ 93 dnl Persuade glibc and Solaris <locale.h> to define locale_t. 94 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) 95 96 dnl Check whether use of locale_t requires inclusion of <xlocale.h>, 97 dnl e.g. on Mac OS X 10.5. If <locale.h> does not define locale_t by 98 dnl itself, we assume that <xlocale.h> will do so. 99 AC_CACHE_CHECK([whether locale.h defines locale_t], 100 [gl_cv_header_locale_has_locale_t], 101 [AC_COMPILE_IFELSE( 102 [AC_LANG_PROGRAM( 103 [[#include <locale.h> 104 locale_t x;]], 105 [[]])], 106 [gl_cv_header_locale_has_locale_t=yes], 107 [gl_cv_header_locale_has_locale_t=no]) 108 ]) 109 110 dnl Check for <xlocale.h>. 111 AC_CHECK_HEADERS_ONCE([xlocale.h]) 112 if test $ac_cv_header_xlocale_h = yes; then 113 HAVE_XLOCALE_H=1 114 if test $gl_cv_header_locale_has_locale_t = yes; then 115 gl_cv_header_locale_h_needs_xlocale_h=no 116 else 117 gl_cv_header_locale_h_needs_xlocale_h=yes 118 fi 119 HAVE_LOCALE_T=1 120 else 121 HAVE_XLOCALE_H=0 122 gl_cv_header_locale_h_needs_xlocale_h=no 123 if test $gl_cv_header_locale_has_locale_t = yes; then 124 HAVE_LOCALE_T=1 125 else 126 HAVE_LOCALE_T=0 127 fi 128 fi 129 AC_SUBST([HAVE_XLOCALE_H]) 130]) 131 132# gl_LOCALE_MODULE_INDICATOR([modulename]) 133# sets the shell variable that indicates the presence of the given module 134# to a C preprocessor expression that will evaluate to 1. 135# This macro invocation must not occur in macros that are AC_REQUIREd. 136AC_DEFUN([gl_LOCALE_MODULE_INDICATOR], 137[ 138 dnl Ensure to expand the default settings once only. 139 gl_LOCALE_H_REQUIRE_DEFAULTS 140 gl_MODULE_INDICATOR_SET_VARIABLE([$1]) 141 dnl Define it also as a C macro, for the benefit of the unit tests. 142 gl_MODULE_INDICATOR_FOR_TESTS([$1]) 143]) 144 145# Initializes the default values for AC_SUBSTed shell variables. 146# This macro must not be AC_REQUIREd. It must only be invoked, and only 147# outside of macros or in macros that are not AC_REQUIREd. 148AC_DEFUN([gl_LOCALE_H_REQUIRE_DEFAULTS], 149[ 150 m4_defun(GL_MODULE_INDICATOR_PREFIX[_LOCALE_H_MODULE_INDICATOR_DEFAULTS], [ 151 gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOCALECONV]) 152 gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SETLOCALE]) 153 gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SETLOCALE_NULL]) 154 gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_DUPLOCALE]) 155 gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOCALENAME]) 156 ]) 157 m4_require(GL_MODULE_INDICATOR_PREFIX[_LOCALE_H_MODULE_INDICATOR_DEFAULTS]) 158 AC_REQUIRE([gl_LOCALE_H_DEFAULTS]) 159]) 160 161AC_DEFUN([gl_LOCALE_H_DEFAULTS], 162[ 163 dnl Assume proper GNU behavior unless another module says otherwise. 164 HAVE_NEWLOCALE=1; AC_SUBST([HAVE_NEWLOCALE]) 165 HAVE_DUPLOCALE=1; AC_SUBST([HAVE_DUPLOCALE]) 166 HAVE_FREELOCALE=1; AC_SUBST([HAVE_FREELOCALE]) 167 REPLACE_LOCALECONV=0; AC_SUBST([REPLACE_LOCALECONV]) 168 REPLACE_SETLOCALE=0; AC_SUBST([REPLACE_SETLOCALE]) 169 REPLACE_NEWLOCALE=0; AC_SUBST([REPLACE_NEWLOCALE]) 170 REPLACE_DUPLOCALE=0; AC_SUBST([REPLACE_DUPLOCALE]) 171 REPLACE_FREELOCALE=0; AC_SUBST([REPLACE_FREELOCALE]) 172 REPLACE_STRUCT_LCONV=0; AC_SUBST([REPLACE_STRUCT_LCONV]) 173 LOCALENAME_ENHANCE_LOCALE_FUNCS=0; AC_SUBST([LOCALENAME_ENHANCE_LOCALE_FUNCS]) 174]) 175