relocatable-prog-wrapper: Fix possible link error.

[gnulib.git] / m4 / mbrlen.m4

diff --git a/m4/mbrlen.m4 b/m4/mbrlen.m4
index 81fc671..8f55e36 100644 (file)
--- a/m4/mbrlen.m4
+++ b/m4/mbrlen.m4
@@ -1,5 +1,5 @@
-# mbrlen.m4 serial 3
-dnl Copyright (C) 2008, 2010 Free Software Foundation, Inc.
+# mbrlen.m4 serial 6
+dnl Copyright (C) 2008, 2010-2011 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.
@@ -23,7 +23,6 @@ AC_DEFUN([gl_FUNC_MBRLEN],
     fi
   fi
   if test $HAVE_MBRLEN = 0 || test $REPLACE_MBRLEN = 1; then
-    gl_REPLACE_WCHAR_H
     AC_LIBOBJ([mbrlen])
     gl_PREREQ_MBRLEN
   fi
@@ -52,9 +51,17 @@ changequote(,)dnl
       esac
 changequote([,])dnl
       if test $LOCALE_JA != 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 ()
 {
@@ -69,7 +76,7 @@ int main ()
           return 1;
     }
   return 0;
-}],
+}]])],
           [gl_cv_func_mbrlen_incomplete_state=yes],
           [gl_cv_func_mbrlen_incomplete_state=no],
           [])
@@ -102,12 +109,21 @@ changequote(,)dnl
       esac
 changequote([,])dnl
       if test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none; then
-        AC_TRY_RUN([
+        AC_RUN_IFELSE(
+          [AC_LANG_SOURCE([[
 #include <locale.h>
 #include <string.h>
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+   <wchar.h>.
+   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+   included before <wchar.h>.  */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
 #include <wchar.h>
 int main ()
 {
+  int result = 0;
   /* This fails on Solaris.  */
   if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL)
     {
@@ -119,7 +135,7 @@ int main ()
         {
           input[1] = '\0';
           if (mbrlen (input + 2, 5, &state) != 1)
-            return 1;
+            result |= 1;
         }
     }
   /* This fails on HP-UX 11.11.  */
@@ -133,11 +149,11 @@ int main ()
         {
           input[1] = '\0';
           if (mbrlen (input + 2, 5, &state) != 2)
-            return 1;
+            result |= 2;
         }
     }
-  return 0;
-}],
+  return result;
+}]])],
           [gl_cv_func_mbrlen_retval=yes],
           [gl_cv_func_mbrlen_retval=no],
           [])
@@ -167,9 +183,17 @@ changequote(,)dnl
       esac
 changequote([,])dnl
       if 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 ()
 {
@@ -183,7 +207,7 @@ int main ()
         return 1;
     }
   return 0;
-}],
+}]])],
           [gl_cv_func_mbrlen_nul_retval=yes],
           [gl_cv_func_mbrlen_nul_retval=no],
           [])