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authorJim Meyering <jim@meyering.net>2004-06-01 15:24:11 +0000
committerJim Meyering <jim@meyering.net>2004-06-01 15:24:11 +0000
commit4041dbb5e43851818fce8434a52c45092b3bebb5 (patch)
treeb7422b6389b322659c50630dd06ef7d0de2e4262 /m4
parent807984cc3f8f364058bf691ebfaad7feb380e047 (diff)
downloadcoreutils-4041dbb5e43851818fce8434a52c45092b3bebb5.tar.xz
Update from gnulib.
Diffstat (limited to 'm4')
-rw-r--r--m4/stdbool.m414
1 files changed, 10 insertions, 4 deletions
diff --git a/m4/stdbool.m4 b/m4/stdbool.m4
index ed000c816..b25b7d244 100644
--- a/m4/stdbool.m4
+++ b/m4/stdbool.m4
@@ -1,6 +1,6 @@
# Check for stdbool.h that conforms to C99.
-# Copyright (C) 2002-2003 Free Software Foundation, Inc.
+# Copyright (C) 2002-2004 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -40,7 +40,7 @@ AC_DEFUN([AM_STDBOOL_H],
AC_SUBST([HAVE__BOOL])
])
-# This macro is only needed in autoconf <= 2.54. Newer versions of autoconf
+# This macro is only needed in autoconf <= 2.59. Newer versions of autoconf
# have this macro built-in.
AC_DEFUN([AC_HEADER_STDBOOL],
@@ -59,7 +59,7 @@ AC_DEFUN([AC_HEADER_STDBOOL],
"error: false is not 0"
#endif
#ifndef true
- "error: false is not defined"
+ "error: true is not defined"
#endif
#if true != 1
"error: true is not 1"
@@ -79,8 +79,14 @@ AC_DEFUN([AC_HEADER_STDBOOL],
char g[true];
char h[sizeof (_Bool)];
char i[sizeof s.t];
+ enum { j = false, k = true, l = false * true, m = true * 256 };
+ _Bool n[m];
+ char o[sizeof n == m * sizeof n[0] ? 1 : -1];
+ ],
+ [
+ return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !j + !k + !l
+ + !m + !n + !o);
],
- [ return !a + !b + !c + !d + !e + !f + !g + !h + !i; ],
[ac_cv_header_stdbool_h=yes],
[ac_cv_header_stdbool_h=no])])
AC_CHECK_TYPES([_Bool])