[Cvs-cvs] Changes to ccvs/m4/stdbool.m4

[Derek Robert Price]

Index: ccvs/m4/stdbool.m4
diff -u ccvs/m4/stdbool.m4:1.3 ccvs/m4/stdbool.m4:1.4
--- ccvs/m4/stdbool.m4:1.3      Tue Mar  1 18:15:07 2005
+++ ccvs/m4/stdbool.m4  Thu Oct 20 21:08:46 2005
@@ -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.
@@ -28,6 +28,9 @@
   AC_SUBST([HAVE__BOOL])
 ])
 
+# AM_STDBOOL_H will be renamed to gl_STDBOOL_H in the future.
+AC_DEFUN([gl_STDBOOL_H], [AM_STDBOOL_H])
+
 # This macro is only needed in autoconf <= 2.59.  Newer versions of autoconf
 # have this macro built-in.
 
@@ -70,10 +73,12 @@
          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);
+         /* Refer to every declared value, to avoid compiler optimizations.  */
+         return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l
+                 + !m + !n + !o + !p);
        ],
        [ac_cv_header_stdbool_h=yes],
        [ac_cv_header_stdbool_h=no])])