diff options
Diffstat (limited to 'libcxx/utils/google-benchmark/CMakeLists.txt')
| -rw-r--r-- | libcxx/utils/google-benchmark/CMakeLists.txt | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/libcxx/utils/google-benchmark/CMakeLists.txt b/libcxx/utils/google-benchmark/CMakeLists.txt index 8bfd21b190a..1ba31331944 100644 --- a/libcxx/utils/google-benchmark/CMakeLists.txt +++ b/libcxx/utils/google-benchmark/CMakeLists.txt @@ -1,4 +1,4 @@ -cmake_minimum_required (VERSION 2.8.11) +cmake_minimum_required (VERSION 2.8.12) project (benchmark) foreach(p @@ -11,8 +11,11 @@ foreach(p endforeach() option(BENCHMARK_ENABLE_TESTING "Enable testing of the benchmark library." ON) +option(BENCHMARK_ENABLE_EXCEPTIONS "Enable the use of exceptions in the benchmark library." ON) option(BENCHMARK_ENABLE_LTO "Enable link time optimisation of the benchmark library." OFF) option(BENCHMARK_USE_LIBCXX "Build and test using libc++ as the standard library." OFF) +option(BENCHMARK_BUILD_32_BITS "Build a 32 bit version of the library" OFF) + # Make sure we can import out CMake functions list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake") @@ -33,12 +36,20 @@ include(CheckCXXCompilerFlag) include(AddCXXCompilerFlag) include(CXXFeatureCheck) +if (BENCHMARK_BUILD_32_BITS) + add_required_cxx_compiler_flag(-m32) +endif() + if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC") # Turn compiler warnings up to 11 string(REGEX REPLACE "[-/]W[1-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4") add_definitions(-D_CRT_SECURE_NO_WARNINGS) + if (NOT BENCHMARK_ENABLE_EXCEPTIONS) + add_cxx_compiler_flag(-EHs-) + add_cxx_compiler_flag(-EHa-) + endif() # Link time optimisation if (BENCHMARK_ENABLE_LTO) set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /GL") @@ -80,12 +91,20 @@ else() add_cxx_compiler_flag(-Wshorten-64-to-32) add_cxx_compiler_flag(-Wfloat-equal) add_cxx_compiler_flag(-fstrict-aliasing) + if (NOT BENCHMARK_ENABLE_EXCEPTIONS) + add_cxx_compiler_flag(-fno-exceptions) + endif() if (NOT BENCHMARK_USE_LIBCXX) add_cxx_compiler_flag(-Wzero-as-null-pointer-constant) endif() if (HAVE_CXX_FLAG_FSTRICT_ALIASING) - add_cxx_compiler_flag(-Wstrict-aliasing) + if (NOT CMAKE_CXX_COMPILER_ID STREQUAL "Intel") #ICC17u2: Many false positives for Wstrict-aliasing + add_cxx_compiler_flag(-Wstrict-aliasing) + endif() endif() + # ICC17u2: overloaded virtual function "benchmark::Fixture::SetUp" is only partially overridden + # (because of deprecated overload) + add_cxx_compiler_flag(-wd654) add_cxx_compiler_flag(-Wthread-safety) if (HAVE_CXX_FLAG_WTHREAD_SAFETY) cxx_feature_check(THREAD_SAFETY_ATTRIBUTES) @@ -162,7 +181,10 @@ cxx_feature_check(POSIX_REGEX) if(NOT HAVE_STD_REGEX AND NOT HAVE_GNU_POSIX_REGEX AND NOT HAVE_POSIX_REGEX) message(FATAL_ERROR "Failed to determine the source files for the regular expression backend") endif() - +if (NOT BENCHMARK_ENABLE_EXCEPTIONS AND HAVE_STD_REGEX + AND NOT HAVE_GNU_POSIX_REGEX AND NOT HAVE_POSIX_REGEX) + message(WARNING "Using std::regex with exceptions disabled is not fully supported") +endif() cxx_feature_check(STEADY_CLOCK) # Ensure we have pthreads find_package(Threads REQUIRED) |
