doc: Mention vasprintf-posix module.

[gnulib.git] / m4 / wcrtomb.m4

diff --git a/m4/wcrtomb.m4 b/m4/wcrtomb.m4
index 6a2d772..514aed6 100644 (file)
--- a/m4/wcrtomb.m4
+++ b/m4/wcrtomb.m4
@@ -1,4 +1,4 @@
-# wcrtomb.m4 serial 5
+# wcrtomb.m4 serial 7
 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,
@@ -40,35 +40,37 @@ changequote(,)dnl
           esac
 changequote([,])dnl
           if test $LOCALE_FR != none || test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none || test $LOCALE_ZH_CN != none; then
-            AC_TRY_RUN([
+            AC_RUN_IFELSE(
+              [AC_LANG_SOURCE([[
 #include <locale.h>
 #include <stdio.h>
 #include <string.h>
 #include <wchar.h>
 int main ()
 {
+  int result = 0;
   if (setlocale (LC_ALL, "$LOCALE_FR") != NULL)
     {
       if (wcrtomb (NULL, 0, NULL) != 1)
-        return 1;
+        result |= 1;
     }
   if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL)
     {
       if (wcrtomb (NULL, 0, NULL) != 1)
-        return 1;
+        result |= 2;
     }
   if (setlocale (LC_ALL, "$LOCALE_JA") != NULL)
     {
       if (wcrtomb (NULL, 0, NULL) != 1)
-        return 1;
+        result |= 4;
     }
   if (setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL)
     {
       if (wcrtomb (NULL, 0, NULL) != 1)
-        return 1;
+        result |= 8;
     }
-  return 0;
-}],
+  return result;
+}]])],
               [gl_cv_func_wcrtomb_retval=yes],
               [gl_cv_func_wcrtomb_retval=no],
               [:])