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authorru <ru@FreeBSD.org>2004-01-22 10:01:47 +0000
committerru <ru@FreeBSD.org>2004-01-22 10:01:47 +0000
commit1e5d49c1466d42d4b4a2262fb38135f6ee9704fa (patch)
tree15008a838908dc992176a06c072227c0631b0ba5 /sys/conf
parent05d90511cf2a70c2b09a0cfa96bfee93c20d838c (diff)
downloadFreeBSD-src-1e5d49c1466d42d4b4a2262fb38135f6ee9704fa.zip
FreeBSD-src-1e5d49c1466d42d4b4a2262fb38135f6ee9704fa.tar.gz
Only enforce -fno-strict-aliasing for optimization levels that
imply -fstrict-aliasing. Reviewed by: bde
Diffstat (limited to 'sys/conf')
-rw-r--r--sys/conf/kern.pre.mk5
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/conf/kern.pre.mk b/sys/conf/kern.pre.mk
index 9560793..0b2b624 100644
--- a/sys/conf/kern.pre.mk
+++ b/sys/conf/kern.pre.mk
@@ -17,6 +17,9 @@ OBJCOPY?= objcopy
SIZE?= size
COPTFLAGS?=-O -pipe
+.if ${COPTFLAGS:M-O[23s]} != ""
+COPTFLAGS+= -fno-strict-aliasing
+.endif
.if !defined(NO_CPU_COPTFLAGS)
COPTFLAGS+= ${_CPUCFLAGS}
.endif
@@ -37,7 +40,7 @@ INCLUDES+= -I$S/contrib/ngatm
COPTS= ${INCLUDES} -D_KERNEL -include opt_global.h
CFLAGS= ${COPTFLAGS} ${CWARNFLAGS} ${DEBUG} ${COPTS}
-CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT} -fno-strict-aliasing
+CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT}
WERROR?= -Werror
# XXX LOCORE means "don't declare C stuff" not "for locore.s".
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