Author: dim
Date: Sun Mar 22 22:40:32 2015
New Revision: 280357
URL: https://svnweb.freebsd.org/changeset/base/280357
Log:
Build expr with -fwrapv, since it relies on signed integer wrapping
having defined behavior.
Reported by: rodrigc
MFC after: 3 days
Modified:
head/bin/expr/Makefile
Modified: head/bin/expr/Makefile
==============================================================================
--- head/bin/expr/Makefile Sun Mar 22 22:00:29 2015 (r280356)
+++ head/bin/expr/Makefile Sun Mar 22 22:40:32 2015 (r280357)
@@ -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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