-# wctob.m4 serial 4
-dnl Copyright (C) 2008-2010 Free Software Foundation, Inc.
+# wctob.m4 serial 10
+dnl Copyright (C) 2008-2011 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_CHECK_FUNCS_ONCE([wctob])
if test $ac_cv_func_wctob = no; then
+ HAVE_WCTOB=0
HAVE_DECL_WCTOB=0
- gl_REPLACE_WCHAR_H
- AC_LIBOBJ([wctob])
- gl_PREREQ_WCTOB
else
+ HAVE_WCTOB=1
dnl Solaris 9 has the wctob() function but it does not work.
+ dnl Cygwin 1.7.2 has the wctob() function but it clobbers caller-owned
+ dnl registers, see <http://cygwin.com/ml/cygwin/2010-05/msg00015.html>.
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([gt_LOCALE_FR])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
dnl is present.
changequote(,)dnl
case "$host_os" in
- # Guess no on Solaris <= 9.
- solaris2.[1-9] | solaris2.[1-9].*)
+ # Guess no on Solaris <= 9 and Cygwin.
+ solaris2.[1-9] | solaris2.[1-9].* | cygwin*)
gl_cv_func_wctob_works="guessing no" ;;
# Guess yes otherwise.
*) gl_cv_func_wctob_works="guessing yes" ;;
esac
changequote([,])dnl
- if test $LOCALE_FR != none; then
- AC_TRY_RUN([
+ case "$host_os" in
+ cygwin*)
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <locale.h>
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+ included before <wchar.h>. */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
+#include <wchar.h>
+
+register long global __asm__ ("%ebx");
+
+int main ()
+{
+ setlocale (LC_ALL, "en_US.UTF-8");
+
+ global = 0x12345678;
+ if (wctob (0x00FC) != -1)
+ return 1;
+ if (global != 0x12345678)
+ return 2;
+ return 0;
+}]])],
+ [:],
+ [gl_cv_func_wctob_works=no],
+ [:])
+ ;;
+ esac
+ if test "$gl_cv_func_wctob_works" != no && test $LOCALE_FR != none; then
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
#include <locale.h>
#include <string.h>
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+ included before <wchar.h>. */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
#include <wchar.h>
int main ()
{
return 1;
}
return 0;
-}],
+}]])],
[gl_cv_func_wctob_works=yes],
[gl_cv_func_wctob_works=no],
[:])
*yes) ;;
*) REPLACE_WCTOB=1 ;;
esac
- if test $REPLACE_WCTOB = 1; then
- gl_REPLACE_WCHAR_H
- AC_LIBOBJ([wctob])
- gl_PREREQ_WCTOB
- else
+ if test $REPLACE_WCTOB = 0; then
dnl IRIX 6.5 has the wctob() function but does not declare it.
- AC_CHECK_DECLS([wctob], [], [], [
+ AC_CHECK_DECLS([wctob], [], [], [[
/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
<wchar.h>.
BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included
#include <stdio.h>
#include <time.h>
#include <wchar.h>
-])
+]])
if test $ac_cv_have_decl_wctob != yes; then
HAVE_DECL_WCTOB=0
- gl_REPLACE_WCHAR_H
fi
fi
fi