-# duplocale.m4 serial 2
-dnl Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+# duplocale.m4 serial 7
+dnl Copyright (C) 2009-2013 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.
if test $ac_cv_func_duplocale = yes; then
dnl Check against glibc bug where duplocale crashes.
dnl See <http://sourceware.org/bugzilla/show_bug.cgi?id=10969>.
+ dnl Also, on AIX 7.1, duplocale(LC_GLOBAL_LOCALE) returns (locale_t)0 with
+ dnl errno set to EINVAL.
AC_REQUIRE([gl_LOCALE_H])
AC_CACHE_CHECK([whether duplocale(LC_GLOBAL_LOCALE) works],
[gl_cv_func_duplocale_works],
- [AC_TRY_RUN([
+ [AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
#include <locale.h>
#if HAVE_XLOCALE_H
# include <xlocale.h>
#endif
int main ()
{
- (void) duplocale (LC_GLOBAL_LOCALE);
+ if (duplocale (LC_GLOBAL_LOCALE) == (locale_t)0)
+ return 1;
return 0;
-}], [gl_cv_func_duplocale_works=yes], [gl_cv_func_duplocale_works=no],
- [dnl Guess it works except on glibc < 2.12.
- AC_EGREP_CPP([Unlucky GNU user], [
+}]])],
+ [gl_cv_func_duplocale_works=yes],
+ [gl_cv_func_duplocale_works=no],
+ [dnl Guess it works except on glibc < 2.12, uClibc, and AIX.
+ case "$host_os" in
+ aix*) gl_cv_func_duplocale_works="guessing no";;
+ *-gnu*)
+ AC_EGREP_CPP([Unlucky], [
#include <features.h>
#ifdef __GNU_LIBRARY__
#if (__GLIBC__ == 2 && __GLIBC_MINOR__ < 12)
Unlucky GNU user
#endif
#endif
- ],
- [gl_cv_func_duplocale_works="guessing no"],
- [gl_cv_func_duplocale_works="guessing yes"])
+#ifdef __UCLIBC__
+ Unlucky user
+#endif
+ ],
+ [gl_cv_func_duplocale_works="guessing no"],
+ [gl_cv_func_duplocale_works="guessing yes"])
+ ;;
+ *) gl_cv_func_duplocale_works="guessing yes";;
+ esac
])
])
case "$gl_cv_func_duplocale_works" in
else
HAVE_DUPLOCALE=0
fi
- if test $REPLACE_DUPLOCALE = 1; then
- gl_REPLACE_LOCALE_H
- AC_LIBOBJ([duplocale])
- gl_PREREQ_DUPLOCALE
- fi
])
# Prerequisites of lib/duplocale.c.