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authorIngo Molnar <[email protected]>2017-05-05 08:20:52 +0200
committerIngo Molnar <[email protected]>2017-05-05 08:21:03 +0200
commit415812f2d6b856d33ede9bf4a2b95575dbbb3d4e (patch)
tree4daf9ca52f89ea59453538b406f584d47c77aff3 /tools/scripts/Makefile.include
parent42fc6c6cb1662ba2fa727dd01c9473c63be4e3b6 (diff)
parentd3b5d35290d729a2518af00feca867385a1b08fa (diff)
Merge branch 'linus' into x86/urgent, to pick up dependent commits
We are going to fix a bug introduced by a more recent commit, so refresh the tree. Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/scripts/Makefile.include')
-rw-r--r--tools/scripts/Makefile.include9
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include
index 621578aa12d6..fc74db62fef4 100644
--- a/tools/scripts/Makefile.include
+++ b/tools/scripts/Makefile.include
@@ -43,6 +43,15 @@ ifneq ($(CC), clang)
EXTRA_WARNINGS += -Wstrict-aliasing=3
endif
+# Hack to avoid type-punned warnings on old systems such as RHEL5:
+# We should be changing CFLAGS and checking gcc version, but this
+# will do for now and keep the above -Wstrict-aliasing=3 in place
+# in newer systems.
+# Needed for the __raw_cmpxchg in tools/arch/x86/include/asm/cmpxchg.h
+ifneq ($(filter 3.%,$(MAKE_VERSION)),) # make-3
+EXTRA_WARNINGS += -fno-strict-aliasing
+endif
+
ifneq ($(findstring $(MAKEFLAGS), w),w)
PRINT_DIR = --no-print-directory
else