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# Copyright 2017 gRPC authors.
#
# Licensed 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.
if(gRPC_BENCHMARK_PROVIDER STREQUAL "module")
set(BENCHMARK_ENABLE_GTEST_TESTS OFF CACHE BOOL "Turn off gTest in gBenchmark")
if(NOT BENCHMARK_ROOT_DIR)
set(BENCHMARK_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/benchmark)
endif()
if(EXISTS "${BENCHMARK_ROOT_DIR}/CMakeLists.txt")
add_subdirectory(${BENCHMARK_ROOT_DIR} third_party/benchmark)
if(TARGET benchmark)
set(_gRPC_BENCHMARK_LIBRARIES benchmark)
endif()
else()
message(WARNING "gRPC_BENCHMARK_PROVIDER is \"module\" but BENCHMARK_ROOT_DIR is wrong")
endif()
elseif(gRPC_BENCHMARK_PROVIDER STREQUAL "package")
# Use "CONFIG" as there is no built-in cmake module for benchmark.
find_package(benchmark REQUIRED CONFIG)
if(TARGET benchmark::benchmark)
set(_gRPC_BENCHMARK_LIBRARIES benchmark::benchmark)
endif()
set(_gRPC_FIND_BENCHMARK "if(NOT benchmark_FOUND)\n find_package(benchmark CONFIG)\nendif()")
elseif(gRPC_BENCHMARK_PROVIDER STREQUAL "none")
# Benchmark is a test-only dependency and can be avoided if we're not building tests.
endif()
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