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-rw-r--r--Makefile.rules11
1 files changed, 8 insertions, 3 deletions
diff --git a/Makefile.rules b/Makefile.rules
index 6341c7553c..3fe8090c9b 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -214,13 +214,18 @@ ifdef ENABLE_PROFILING
else
ifdef ENABLE_OPTIMIZED
BuildMode := Release
- # Don't use -fomit-frame-pointer on FreeBSD
+ # Don't use -fomit-frame-pointer on Darwin or FreeBSD.
ifneq ($(OS),FreeBSD)
- # Don't use -fomit-frame-pointer on Darwin, it breaks backtraces.
ifneq ($(OS),Darwin)
OmitFramePointer := -fomit-frame-pointer
endif
endif
+
+ # Darwin requires -fstrict-aliasing to be explicitly enabled.
+ ifeq ($(OS),Darwin)
+ EXTRA_OPTIONS += -fstrict-aliasing
+ endif
+
CXX.Flags := $(OPTIMIZE_OPTION) $(OmitFramePointer)
C.Flags := $(OPTIMIZE_OPTION) $(OmitFramePointer)
LD.Flags := $(OPTIMIZE_OPTION)
@@ -251,7 +256,7 @@ LD.Flags += $(LDFLAGS)
AR.Flags := cru
LibTool.Flags := --tag=CXX
-#Make Floating point ieee complient on alpha
+# Make Floating point IEEE compliant on Alpha.
ifeq ($(ARCH),Alpha)
CXX.Flags += -mieee -fPIC
CPP.BaseFlags += -mieee -fPIC