no point suggesting something that's required

[tar] / m4 / mbstate_t.m4

diff --git a/m4/mbstate_t.m4 b/m4/mbstate_t.m4
index df2a275c2eab6a08d7d0b65fa7ee4e6ae230c7e9..3e2df29f8aa13b71eb4038480ce3c85d25fdbb3c 100644 (file)
--- a/m4/mbstate_t.m4
+++ b/m4/mbstate_t.m4
@@ -1,5 +1,5 @@
-# mbstate_t.m4 serial 9
-dnl Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
+# mbstate_t.m4 serial 12
+dnl Copyright (C) 2000-2002, 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.
@@ -13,18 +13,22 @@ 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[
+#           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
+])