http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48851
--- Comment #13 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-06-30
10:05:34 UTC ---
There seem to be two NULL fixincludes, one for openBSD and one for AIX, both
look suspicious (though I'd have to lookup the exact working of
fixincludes/inclhack.def):
/*
* Fix OpenBSD's NULL definition.
*/
fix = {
hackname = openbsd_null_definition;
mach = "*-*-openbsd*";
files = locale.h, stddef.h, stdio.h, string.h,
time.h, unistd.h, wchar.h, sys/param.h;
select = "__GNUG__";
c_fix = format;
c_fix_arg = "#ifndef NULL\n"
"#ifdef __cplusplus\n"
"#ifdef __GNUG__\n"
"#define NULL\t__null\n"
"#else\t /* ! __GNUG__ */\n"
"#define NULL\t0L\n"
"#endif\t /* __GNUG__ */\n"
"#else\t /* ! __cplusplus */\n"
"#define NULL\t((void *)0)\n"
"#endif\t /* __cplusplus */\n"
"#endif\t /* !NULL */";
c_fix_arg = "^#ifndef[ \t]*NULL\n"
"^#ifdef[ \t]*__GNUG__\n"
"^#define[ \t]*NULL[ \t]*__null\n"
"^#else\n"
"^#define[ \t]*NULL[ \t]*0L\n"
"^#endif\n"
"^#endif";
test_text =
"#ifndef NULL\n"
"#ifdef __GNUG__\n"
"#define NULL __null\n"
"#else\n"
"#define NULL 0L\n"
"#endif\n"
"#endif\n";
};
and
/*
* AIX and Interix headers define NULL to be cast to a void pointer,
* which is illegal in ANSI C++.
*/
fix = {
hackname = void_null;
files = curses.h;
files = dbm.h;
files = locale.h;
files = stdio.h;
files = stdlib.h;
files = string.h;
files = time.h;
files = unistd.h;
files = sys/dir.h;
files = sys/param.h;
files = sys/types.h;
/* avoid changing C++ friendly NULL */
bypass = __cplusplus;
select = "^#[ \t]*define[ \t]+NULL[ \t]+\\(\\(void[ \t]*\\*\\)0\\)";
c_fix = format;
c_fix_arg = "#define NULL 0";
test_text = "# define\tNULL \t((void *)0) /* typed NULL */";
};
maybe they work against each other somehow.
Can you attach the un-fixed string.h?
