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Makefile: use FUZZ_CXXFLAGS for linking fuzzers
OSS-Fuzz requires C++-specific flags to link fuzzers. Passing these in CFLAGS causes lots of build warnings. Using separate FUZZ_CXXFLAGS avoids this. Signed-off-by: Josh Steadmon <steadmon@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Makefile
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Makefile
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@ -3083,14 +3083,16 @@ cover_db_html: cover_db
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# An example command to build against libFuzzer from LLVM 4.0.0:
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#
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# make CC=clang CXX=clang++ \
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# CFLAGS="-fsanitize-coverage=trace-pc-guard -fsanitize=address" \
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# FUZZ_CXXFLAGS="-fsanitize-coverage=trace-pc-guard -fsanitize=address" \
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# LIB_FUZZING_ENGINE=/usr/lib/llvm-4.0/lib/libFuzzer.a \
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# fuzz-all
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#
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FUZZ_CXXFLAGS ?= $(CFLAGS)
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.PHONY: fuzz-all
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$(FUZZ_PROGRAMS): all
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$(QUIET_LINK)$(CXX) $(CFLAGS) $(LIB_OBJS) $(BUILTIN_OBJS) \
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$(QUIET_LINK)$(CXX) $(FUZZ_CXXFLAGS) $(LIB_OBJS) $(BUILTIN_OBJS) \
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$(XDIFF_OBJS) $(EXTLIBS) git.o $@.o $(LIB_FUZZING_ENGINE) -o $@
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fuzz-all: $(FUZZ_PROGRAMS)
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