src/cmake/FindLibFuzzer.cmake

#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

# This module sets `LIBFUZZER_FOUND` to `1` if libFuzzer[1] is found.
#
# [1] https://llvm.org/docs/LibFuzzer.html

if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
  try_compile(LIBFUZZER_FOUND
  	"${CMAKE_BINARY_DIR}/LibFuzzerTest"
  	"${CMAKE_CURRENT_LIST_DIR}/LibFuzzerTest.cpp"
  	CMAKE_FLAGS -DCOMPILE_DEFINITIONS=-fsanitize=fuzzer)
else()
  set(LIBFUZZER_FOUND 0)
endif()