svn commit: r326375 - head/share/mk
Alex Richardson
arichardson at FreeBSD.org
Wed Nov 29 21:16:15 UTC 2017
Author: arichardson
Date: Wed Nov 29 21:16:14 2017
New Revision: 326375
URL: https://svnweb.freebsd.org/changeset/base/326375
Log:
Don't fail the build due to clang integer constant range warnings
This warning checks whether a constant is out of range of the integer
type. An example is `comparison of 'u_int' > 4294967295 is always false`
and in this case the warning makes sense.
However, when the type is a typedef that can be either 64 or 32 bits the
if condition is only tautological in some configurations so this should
not be a warning that fails the build.
Reviewed by: dim
Approved by: jhb (mentor)
Differential Revision: https://reviews.freebsd.org/D12912
Modified:
head/share/mk/bsd.sys.mk
Modified: head/share/mk/bsd.sys.mk
==============================================================================
--- head/share/mk/bsd.sys.mk Wed Nov 29 20:44:40 2017 (r326374)
+++ head/share/mk/bsd.sys.mk Wed Nov 29 21:16:14 2017 (r326375)
@@ -81,6 +81,9 @@ CWARNFLAGS.clang+= -Wno-unused-local-typedef
.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 40000
CWARNFLAGS.clang+= -Wno-address-of-packed-member
.endif
+.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 60000
+CWARNFLAGS.clang+= -Wno-error=tautological-constant-compare
+.endif
.endif # WARNS <= 3
.if ${WARNS} <= 2
CWARNFLAGS.clang+= -Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter
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