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-rw-r--r--gnulib-m4/wctob.m433
1 files changed, 28 insertions, 5 deletions
diff --git a/gnulib-m4/wctob.m4 b/gnulib-m4/wctob.m4
index 39270c9d..3af3cc7b 100644
--- a/gnulib-m4/wctob.m4
+++ b/gnulib-m4/wctob.m4
@@ -1,5 +1,5 @@
-# wctob.m4 serial 4
-dnl Copyright (C) 2008-2009 Free Software Foundation, Inc.
+# wctob.m4 serial 5
+dnl Copyright (C) 2008-2010 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.
@@ -17,6 +17,8 @@ AC_DEFUN([gl_FUNC_WCTOB],
else
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
@@ -27,14 +29,35 @@ AC_DEFUN([gl_FUNC_WCTOB],
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 $LOCALE_FR != none; then
+ case "$host_os" in
+ cygwin*)
+ AC_TRY_RUN([
+#include <locale.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_TRY_RUN([
#include <locale.h>
#include <string.h>