X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fmbsrtowcs.m4;h=1f298ce24becbf803df0b0959670561e20c527ea;hb=307b5ac2b6178047bff4af5f9cf35d5dbc99d6f8;hp=846a29345fe2acc41f2d488fcc12328ebcd3fd22;hpb=8d8eda4eab3d2801251daf4eb31756c3595e2fc6;p=gnulib.git

diff --git a/m4/mbsrtowcs.m4 b/m4/mbsrtowcs.m4
index 846a29345..1f298ce24 100644
--- a/m4/mbsrtowcs.m4
+++ b/m4/mbsrtowcs.m4
@@ -1,5 +1,5 @@
-# mbsrtowcs.m4 serial 5
-dnl Copyright (C) 2008-2010 Free Software Foundation, Inc.
+# mbsrtowcs.m4 serial 9
+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.
@@ -10,19 +10,20 @@ AC_DEFUN([gl_FUNC_MBSRTOWCS],
 
   AC_REQUIRE([AC_TYPE_MBSTATE_T])
   gl_MBSTATE_T_BROKEN
-  if test $REPLACE_MBSTATE_T = 1; then
-    REPLACE_MBSRTOWCS=1
-  fi
+
   AC_CHECK_FUNCS_ONCE([mbsrtowcs])
   if test $ac_cv_func_mbsrtowcs = no; then
     HAVE_MBSRTOWCS=0
-  fi
-  if test $HAVE_MBSRTOWCS != 0 && test $REPLACE_MBSRTOWCS != 1; then
-    gl_MBSRTOWCS_WORKS
-    case "$gl_cv_func_mbsrtowcs_works" in
-      *yes) ;;
-      *) REPLACE_MBSRTOWCS=1 ;;
-    esac
+  else
+    if test $REPLACE_MBSTATE_T = 1; then
+      REPLACE_MBSRTOWCS=1
+    else
+      gl_MBSRTOWCS_WORKS
+      case "$gl_cv_func_mbsrtowcs_works" in
+        *yes) ;;
+        *) REPLACE_MBSRTOWCS=1 ;;
+      esac
+    fi
   fi
   if test $HAVE_MBSRTOWCS = 0 || test $REPLACE_MBSRTOWCS = 1; then
     gl_REPLACE_WCHAR_H
@@ -56,12 +57,21 @@ changequote(,)dnl
       esac
 changequote([,])dnl
       if test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none || test $LOCALE_ZH_CN != none; then
-        AC_TRY_RUN([
+        AC_RUN_IFELSE(
+          [AC_LANG_SOURCE([[
 #include <locale.h>
 #include <string.h>
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+   <wchar.h>.
+   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+   included before <wchar.h>.  */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
 #include <wchar.h>
 int main ()
 {
+  int result = 0;
   /* Test whether the function works when started with a conversion state
      in non-initial state.  This fails on HP-UX 11.11 and Solaris 10.  */
   if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL)
@@ -75,7 +85,7 @@ int main ()
           {
             const char *src = input + 2;
             if (mbsrtowcs (NULL, &src, 10, &state) != 4)
-              return 1;
+              result |= 1;
           }
     }
   if (setlocale (LC_ALL, "$LOCALE_JA") != NULL)
@@ -89,7 +99,7 @@ int main ()
           {
             const char *src = input + 4;
             if (mbsrtowcs (NULL, &src, 10, &state) != 3)
-              return 1;
+              result |= 2;
           }
     }
   if (setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL)
@@ -103,11 +113,11 @@ int main ()
           {
             const char *src = input + 2;
             if (mbsrtowcs (NULL, &src, 10, &state) != 4)
-              return 1;
+              result |= 4;
           }
     }
-  return 0;
-}],
+  return result;
+}]])],
           [gl_cv_func_mbsrtowcs_works=yes],
           [gl_cv_func_mbsrtowcs_works=no],
           [:])