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authorJim Meyering <jim@meyering.net>2002-06-21 17:38:30 +0000
committerJim Meyering <jim@meyering.net>2002-06-21 17:38:30 +0000
commit04b4ee1245c0aeb3b63741ffb09b6be94c453dd8 (patch)
tree8881984587e3c7280b67f3fb1fefa888adc0ce5f /m4
parent848d68e2c7ddb9832a95c47355c66385190435bd (diff)
downloadcoreutils-04b4ee1245c0aeb3b63741ffb09b6be94c453dd8.tar.xz
Update from diffutils-2.8.2.
Diffstat (limited to 'm4')
-rw-r--r--m4/mbstate_t.m443
1 files changed, 23 insertions, 20 deletions
diff --git a/m4/mbstate_t.m4 b/m4/mbstate_t.m4
index ae2bcf1e8..a07f51bc1 100644
--- a/m4/mbstate_t.m4
+++ b/m4/mbstate_t.m4
@@ -1,4 +1,10 @@
-# serial 9
+# mbstate_t.m4 serial 9
+dnl Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
+dnl This file is free software, distributed under the terms of the GNU
+dnl General Public License. As a special exception to the GNU General
+dnl Public License, this file may be distributed as part of a program
+dnl that contains a configuration script generated by Autoconf, under
+dnl the same distribution terms as the rest of that program.
# From Paul Eggert.
@@ -6,24 +12,21 @@
# so you can't declare an object of that type.
# Check for this incompatibility with Standard C.
-# Include stdlib.h first, because otherwise this test would fail on Linux
-# (at least glibc-2.1.3) because the "_XOPEN_SOURCE 500" definition elicits
-# a syntax error in wchar.h due to the use of undefined __int32_t.
-
-AC_DEFUN([AC_MBSTATE_T],
- [
- AC_CHECK_HEADERS(stdlib.h)
-
- AC_CACHE_CHECK([for mbstate_t], ac_cv_type_mbstate_t,
- [AC_TRY_COMPILE([
-#if HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
-#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 = no; then
- AC_DEFINE(mbstate_t, int,
+# AC_TYPE_MBSTATE_T
+# -----------------
+AC_DEFUN([AC_TYPE_MBSTATE_T],
+ [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])])
+ if test $ac_cv_type_mbstate_t = yes; then
+ 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])