[src/trunk]: src/sys/arch/amd64/conf Apparantly clang doesn't like -mno-80387...

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

details:   https://anonhg.NetBSD.org/src/rev/18bc59e7d7db
branches:  trunk
changeset: 793333:18bc59e7d7db
user:      dsl <dsl%NetBSD.org@localhost>
date:      Wed Feb 05 23:10:41 2014 +0000

description:
Apparantly clang doesn't like -mno-80387 or -mno-fp-ret-in-387
-msoft-float is equivalent to the former, the latter is probably unlikely
to stop anything not picked up elsewhere.

diffstat:

 sys/arch/amd64/conf/Makefile.amd64 |  8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diffs (24 lines):

diff -r ce0bbeecca45 -r 18bc59e7d7db sys/arch/amd64/conf/Makefile.amd64
--- a/sys/arch/amd64/conf/Makefile.amd64        Wed Feb 05 19:09:06 2014 +0000
+++ b/sys/arch/amd64/conf/Makefile.amd64        Wed Feb 05 23:10:41 2014 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile.amd64,v 1.43 2014/02/05 18:52:22 dsl Exp $
+#      $NetBSD: Makefile.amd64,v 1.44 2014/02/05 23:10:41 dsl Exp $
 
 # Makefile for NetBSD
 #
@@ -36,10 +36,12 @@
 DEFCOPTS=      -O2
 CPPFLAGS+=     -Damd64 -Dx86_64
 CFLAGS+=       -mcmodel=kernel
-# -mno-sse implies -mno-sse2 (etc) but doesn't stop avx.
+# -mno-sse implies -mno-sse2 (etc), explicitly disable avx to be extra sure
 CFLAGS+=       -mno-red-zone -mno-mmx -mno-sse -mno-avx
 # make absolutely sure we don't get x87 registers used as well
-CFLAGS+=       -mno-80387 -mno-fp-ret-in-387
+CFLAGS+=       -msoft-float
+# For gcc we might need this, but other compilers barf
+# CFLAGS+=     -mno-fp-ret-in-387
 
 ##
 ## (3) libkern and compat