Re: Bug report: sort.c or AIX compiler

[Paul Eggert]

Jim Meyering <address@hidden> writes:

> That looks fine.

OK, I installed it into coreutils.  Also into gnulib.

I'm CC:ing this message to bug-gnulib so here is the patch again,
relative to gnulib.  The original bug report is here:
<http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html>.
This patch should fix a core dump in GNU 'sort'.

I will also fix Autoconf.

2005-10-06  Paul Eggert  <address@hidden>

        * m4/stdbool.m4 (AC_HEADER_STDBOOL): Check that bool
        promotes to int, not unsigned int, to catch the AIX 5.3
        compiler bug.

--- m4/stdbool.m4       18 Jan 2005 13:07:56 -0000      1.5
+++ m4/stdbool.m4       6 Oct 2005 16:44:04 -0000
@@ -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])])