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Makefile: use FUZZ_CXXFLAGS for linking fuzzers

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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>
This commit is contained in:
Josh Steadmon 2018-11-14 11:41:47 -08:00 committed by Junio C Hamano
parent 1127a98cce
commit 927c77e7d4
1 changed files with 4 additions and 2 deletions
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6
Makefile
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@ -3083,14 +3083,16 @@ cover_db_html: cover_db
# An example command to build against libFuzzer from LLVM 4.0.0:
#
# make CC=clang CXX=clang++ \
# CFLAGS="-fsanitize-coverage=trace-pc-guard -fsanitize=address" \
# FUZZ_CXXFLAGS="-fsanitize-coverage=trace-pc-guard -fsanitize=address" \
# LIB_FUZZING_ENGINE=/usr/lib/llvm-4.0/lib/libFuzzer.a \
# fuzz-all
#
FUZZ_CXXFLAGS ?= $(CFLAGS)
.PHONY: fuzz-all
$(FUZZ_PROGRAMS): all
$(QUIET_LINK)$(CXX) $(CFLAGS) $(LIB_OBJS) $(BUILTIN_OBJS) \
$(QUIET_LINK)$(CXX) $(FUZZ_CXXFLAGS) $(LIB_OBJS) $(BUILTIN_OBJS) \
$(XDIFF_OBJS) $(EXTLIBS) git.o $@.o $(LIB_FUZZING_ENGINE) -o $@
fuzz-all: $(FUZZ_PROGRAMS)