--- a/contrib/fuzz/Makefile Fri Dec 06 15:15:05 2019 -0500
+++ b/contrib/fuzz/Makefile Fri Dec 06 15:19:47 2019 -0500
@@ -1,7 +1,14 @@
CC = clang
CXX = clang++
-LIB_FUZZING_ENGINE ?= -lFuzzingEngine
+# By default, use our own standalone_fuzz_target_runner.
+# This runner does no fuzzing, but simply executes the inputs
+# provided via parameters.
+# Run e.g. "make all LIB_FUZZING_ENGINE=/path/to/libFuzzer.a"
+# to link the fuzzer(s) against a real fuzzing engine.
+#
+# OSS-Fuzz will define its own value for LIB_FUZZING_ENGINE.
+LIB_FUZZING_ENGINE ?= standalone_fuzz_target_runner.o
PYTHON_CONFIG ?= $$OUT/sanpy/bin/python-config
@@ -9,6 +16,8 @@
all: bdiff mpatch xdiff
+standalone_fuzz_target_runner.o: standalone_fuzz_target_runner.cc
+
pyutil.o: pyutil.cc pyutil.h
$(CXX) $(CXXFLAGS) -g -O1 \
`$(PYTHON_CONFIG) --cflags` \