[src/trunk]: src/sys/arch/atari/stand/installboot Specify -fno-strict-aliasin...

[tsutsui <tsutsui%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/cfcb630a4b43
branches:  trunk
changeset: 333967:cfcb630a4b43
user:      tsutsui <tsutsui%NetBSD.org@localhost>
date:      Mon Nov 24 07:52:04 2014 +0000

description:
Specify -fno-strict-aliasing as a temporary workaround for gcc48.

The existing abcksum() also violates strict-aliasing rule
(while current gcc48 doesn't warn it) and fixing all violations
strictly requires whole reorganization of boot sector structures.
But it won't happen soon and this MD installboot should be integrated
into MI installboot(8) in future, and it requires whole overhaul anyway.
See long discussion in source-changes-d@ for details.

Should be pulled up to netbsd-7 if we switches m68k to using gcc48.

diffstat:

 sys/arch/atari/stand/installboot/Makefile |  5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diffs (17 lines):

diff -r cfdfaea6210d -r cfcb630a4b43 sys/arch/atari/stand/installboot/Makefile
--- a/sys/arch/atari/stand/installboot/Makefile Mon Nov 24 07:34:45 2014 +0000
+++ b/sys/arch/atari/stand/installboot/Makefile Mon Nov 24 07:52:04 2014 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile,v 1.6 2011/11/01 13:19:53 chs Exp $
+#      $NetBSD: Makefile,v 1.7 2014/11/24 07:52:04 tsutsui Exp $
 
 WARNS= 4
 PROG=  installboot
@@ -7,4 +7,7 @@
 BINDIR=        /usr/mdec
 LDADD= -lkvm
 
+# XXX needs proper struct or union to calculate boot sector uint16_t cksums
+CFLAGS+=       -fno-strict-aliasing
+
 .include <bsd.prog.mk>