diff options
| author | Paul Eggert <eggert@cs.ucla.edu> | 2005-10-06 16:40:36 +0000 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2005-10-06 16:40:36 +0000 |
| commit | cb797070ced949a7987a0e02cd93805967ac8c8d (patch) | |
| tree | 3052b2d5586447fbe145401d3d69b6379c2ce276 /m4 | |
| parent | 38ffebe4ac6e5e497f08b9d722aa28c8d7e6a560 (diff) | |
| download | coreutils-cb797070ced949a7987a0e02cd93805967ac8c8d.tar.xz | |
(AC_HEADER_STDBOOL): Check that bool
promotes to int, not unsigned int, to catch the AIX 5.3
compiler bug.
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/stdbool.m4 | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/m4/stdbool.m4 b/m4/stdbool.m4 index 3f6b4bfcb..945a03653 100644 --- a/m4/stdbool.m4 +++ b/m4/stdbool.m4 @@ -1,6 +1,6 @@ # Check for stdbool.h that conforms to C99. -dnl Copyright (C) 2002-2004 Free Software Foundation, Inc. +dnl Copyright (C) 2002-2005 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. @@ -70,10 +70,11 @@ AC_DEFUN([AC_HEADER_STDBOOL], enum { j = false, k = true, l = false * true, m = true * 256 }; _Bool n[m]; char o[sizeof n == m * sizeof n[0] ? 1 : -1]; + char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1]; ], [ return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !j + !k + !l - + !m + !n + !o); + + !m + !n + !o + !p); ], [ac_cv_header_stdbool_h=yes], [ac_cv_header_stdbool_h=no])]) |