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authordim <dim@FreeBSD.org>2015-04-06 14:45:40 +0000
committerdim <dim@FreeBSD.org>2015-04-06 14:45:40 +0000
commitcb046ee5e62b1d6818448870f48d1097b1e74e81 (patch)
treea4ac7bf40d6d5e2c258c43b220329ae93a7dee39 /bin/expr
parent9d4a2c89e4089c9997ed06e1c36060810bc4f922 (diff)
downloadFreeBSD-src-cb046ee5e62b1d6818448870f48d1097b1e74e81.zip
FreeBSD-src-cb046ee5e62b1d6818448870f48d1097b1e74e81.tar.gz
MFC r280357:
Build expr with -fwrapv, since it relies on signed integer wrapping having defined behavior. Reported by: rodrigc
Diffstat (limited to 'bin/expr')
-rw-r--r--bin/expr/Makefile3
1 files changed, 3 insertions, 0 deletions
diff --git a/bin/expr/Makefile b/bin/expr/Makefile
index 23f768b..0749802 100644
--- a/bin/expr/Makefile
+++ b/bin/expr/Makefile
@@ -6,6 +6,9 @@ PROG= expr
SRCS= expr.y
YFLAGS=
+# expr relies on signed integer wrapping
+CFLAGS+= -fwrapv
+
NO_WMISSING_VARIABLE_DECLARATIONS=
.if ${MK_TESTS} != "no"
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