On Sun, 22 Aug 2010, Anders Kaseorg wrote:
> - int xlcbug = 1 / (&(digs + 5)[-2 + (bool) 1] == &digs[4] ? 1 : -1);
> + int xlcbug = 1 / (&((char *)0 + 5)[-2 + (bool) 1] == &((char *)0)[4] ?
> 1 : -1);
Oh, actually, in order for this to actually test anything (other than the
initializer extension), the -1 should always have been a 0:
diff --git a/lib/autoconf/headers.m4 b/lib/autoconf/headers.m4
index c8d34c0..8a7a549 100644
--- a/lib/autoconf/headers.m4
+++ b/lib/autoconf/headers.m4
@@ -655,8 +655,7 @@ AC_DEFUN([AC_HEADER_STDBOOL],
this with GCC, where it should work, to detect more
quickly whether someone messes up the test in the
future. */
- char digs[] = "0123456789";
- int xlcbug = 1 / (&(digs + 5)[-2 + (bool) 1] == &digs[4] ? 1 : -1);
+ int xlcbug = 1 / (&((char *)0 + 5)[-2 + (bool) 1] == &((char *)0)[4] ?
1 : 0);
# endif
/* Catch a bug in an HP-UX C compiler. See
http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
Anders
