X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=m4%2Fmbstate_t.m4;h=ed001179889abf292a9eb139b066c9ccf087f7d4;hb=f8dbbaa3271b961437281ab2add18a9056273dda;hp=0da32b6b48b84065765f741d6ae914b1fe24eea0;hpb=c286dbf484dc985fb63d5c677fc8cd91b5b1d0f6;p=debian%2Ftar

diff --git a/m4/mbstate_t.m4 b/m4/mbstate_t.m4
index 0da32b6b..ed001179 100644
--- a/m4/mbstate_t.m4
+++ b/m4/mbstate_t.m4
@@ -1,5 +1,5 @@
-# mbstate_t.m4 serial 10
-dnl Copyright (C) 2000-2002, 2008 Free Software Foundation, Inc.
+# mbstate_t.m4 serial 13
+dnl Copyright (C) 2000-2002, 2008-2013 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.
@@ -13,18 +13,29 @@ dnl with or without modifications, as long as this notice is preserved.
 # AC_TYPE_MBSTATE_T
 # -----------------
 AC_DEFUN([AC_TYPE_MBSTATE_T],
-  [AC_CACHE_CHECK([for mbstate_t], ac_cv_type_mbstate_t,
+[
+   AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) dnl for HP-UX 11.11
+
+   AC_CACHE_CHECK([for mbstate_t], [ac_cv_type_mbstate_t],
      [AC_COMPILE_IFELSE(
-	[AC_LANG_PROGRAM(
-	   [AC_INCLUDES_DEFAULT[
-#	    include <wchar.h>]],
-	   [[mbstate_t x; return sizeof x;]])],
-	[ac_cv_type_mbstate_t=yes],
-	[ac_cv_type_mbstate_t=no])])
+        [AC_LANG_PROGRAM(
+           [AC_INCLUDES_DEFAULT[
+/* 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>]],
+           [[mbstate_t x; return sizeof x;]])],
+        [ac_cv_type_mbstate_t=yes],
+        [ac_cv_type_mbstate_t=no])])
    if test $ac_cv_type_mbstate_t = yes; then
-     AC_DEFINE([HAVE_MBSTATE_T], 1,
-	       [Define to 1 if <wchar.h> declares mbstate_t.])
+     AC_DEFINE([HAVE_MBSTATE_T], [1],
+               [Define to 1 if <wchar.h> declares mbstate_t.])
    else
-     AC_DEFINE([mbstate_t], int,
-	       [Define to a type if <wchar.h> does not define.])
-   fi])
+     AC_DEFINE([mbstate_t], [int],
+               [Define to a type if <wchar.h> does not define.])
+   fi
+])