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# setlocale.m4 serial 7
dnl Copyright (C) 2011-2020 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_SETLOCALE],
[
AC_REQUIRE([gl_LOCALE_H_DEFAULTS])
AC_REQUIRE([gl_FUNC_SETLOCALE_NULL])
AC_REQUIRE([AC_CANONICAL_HOST])
dnl Test whether we need to improve on the general working of setlocale.
NEED_SETLOCALE_IMPROVED=0
case "$host_os" in
dnl On native Windows systems, setlocale(category,NULL) does not look at
dnl the environment variables LC_ALL, category, and LANG.
mingw*) NEED_SETLOCALE_IMPROVED=1 ;;
dnl On Cygwin 1.5.x, setlocale always succeeds but setlocale(LC_CTYPE,NULL)
dnl is then still "C".
cygwin*)
case `uname -r` in
1.5.*) NEED_SETLOCALE_IMPROVED=1 ;;
esac
;;
dnl On Android 4.3, setlocale(category,"C") always fails.
*)
AC_CACHE_CHECK([whether setlocale supports the C locale],
[gl_cv_func_setlocale_works],
[AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
#include <locale.h>
int main ()
{
return setlocale (LC_ALL, "C") == NULL;
}]])],
[gl_cv_func_setlocale_works=yes],
[gl_cv_func_setlocale_works=no],
[case "$host_os" in
# Guess no on Android.
linux*-android*) gl_cv_func_setlocale_works="guessing no";;
# Guess yes otherwise.
*) gl_cv_func_setlocale_works="guessing yes";;
esac
])
])
case "$gl_cv_func_setlocale_works" in
*yes) ;;
*) NEED_SETLOCALE_IMPROVED=1 ;;
esac
;;
esac
AC_DEFINE_UNQUOTED([NEED_SETLOCALE_IMPROVED], [$NEED_SETLOCALE_IMPROVED],
[Define to 1 to enable general improvements of setlocale.])
dnl Test whether we need a multithread-safe setlocale(category,NULL).
NEED_SETLOCALE_MTSAFE=0
if test $SETLOCALE_NULL_ALL_MTSAFE = 0 || test $SETLOCALE_NULL_ONE_MTSAFE = 0; then
NEED_SETLOCALE_MTSAFE=1
fi
AC_DEFINE_UNQUOTED([NEED_SETLOCALE_MTSAFE], [$NEED_SETLOCALE_MTSAFE],
[Define to 1 to enable a multithread-safety fix of setlocale.])
if test $NEED_SETLOCALE_IMPROVED = 1 || test $NEED_SETLOCALE_MTSAFE = 1; then
REPLACE_SETLOCALE=1
fi
if test $NEED_SETLOCALE_MTSAFE = 1; then
LIB_SETLOCALE="$LIB_SETLOCALE_NULL"
else
LIB_SETLOCALE=
fi
dnl LIB_SETLOCALE is expected to be '-pthread' or '-lpthread' on AIX with gcc
dnl or xlc, and empty otherwise.
AC_SUBST([LIB_SETLOCALE])
])
# Prerequisites of lib/setlocale.c.
AC_DEFUN([gl_PREREQ_SETLOCALE],
[
dnl No need to check for CFLocaleCopyPreferredLanguages and
dnl CFPreferencesCopyAppValue because lib/setlocale.c is not used on Mac OS X.
dnl (The Mac OS X specific code is only used in libintl.)
:
])
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