| cmake_minimum_required (VERSION 2.8.11) |
| project (benchmark) |
| |
| option(BENCHMARK_ENABLE_TESTING "Enable testing of the benchmark library." ON) |
| option(BENCHMARK_ENABLE_LTO "Enable link time optimisation of the benchmark library." OFF) |
| # Make sure we can import out CMake functions |
| list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake") |
| |
| # Read the git tags to determine the project version |
| include(GetGitVersion) |
| get_git_version(GIT_VERSION) |
| |
| # Tell the user what versions we are using |
| string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" VERSION ${GIT_VERSION}) |
| message("-- Version: ${VERSION}") |
| |
| # The version of the libraries |
| set(GENERIC_LIB_VERSION ${VERSION}) |
| string(SUBSTRING ${VERSION} 0 1 GENERIC_LIB_SOVERSION) |
| |
| # Import our CMake modules |
| include(CheckCXXCompilerFlag) |
| include(AddCXXCompilerFlag) |
| include(CXXFeatureCheck) |
| |
| # Try and enable C++11. Don't use C++14 because it doesn't work in some |
| # configurations. |
| add_cxx_compiler_flag(-std=c++11) |
| if (NOT HAVE_CXX_FLAG_STD_CXX11) |
| add_cxx_compiler_flag(-std=c++0x) |
| endif() |
| |
| # Turn compiler warnings up to 11 |
| if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
|
| add_cxx_compiler_flag(-W4) |
| add_definitions(-D_CRT_SECURE_NO_WARNINGS)
|
| else()
|
| add_cxx_compiler_flag(-Wall)
|
| endif() |
| add_cxx_compiler_flag(-Wextra) |
| add_cxx_compiler_flag(-Wshadow) |
| add_cxx_compiler_flag(-Werror RELEASE) |
| add_cxx_compiler_flag(-pedantic) |
| add_cxx_compiler_flag(-pedantic-errors) |
| add_cxx_compiler_flag(-Wshorten-64-to-32) |
| add_cxx_compiler_flag(-Wfloat-equal) |
| add_cxx_compiler_flag(-Wzero-as-null-pointer-constant) |
| add_cxx_compiler_flag(-fstrict-aliasing) |
| if (HAVE_CXX_FLAG_FSTRICT_ALIASING) |
| add_cxx_compiler_flag(-Wstrict-aliasing) |
| endif() |
| add_cxx_compiler_flag(-Wthread-safety) |
| if (HAVE_WTHREAD_SAFETY) |
| add_definitions(-DHAVE_WTHREAD_SAFETY) |
| cxx_feature_check(THREAD_SAFETY_ATTRIBUTES) |
| endif() |
| |
| # Link time optimisation |
| if (BENCHMARK_ENABLE_LTO) |
| add_cxx_compiler_flag(-flto) |
| if ("${CMAKE_C_COMPILER_ID}" STREQUAL "GNU") |
| find_program(GCC_AR gcc-ar) |
| if (GCC_AR) |
| set(CMAKE_AR ${GCC_AR}) |
| endif() |
| find_program(GCC_RANLIB gcc-ranlib) |
| if (GCC_RANLIB) |
| set(CMAKE_RANLIB ${GCC_RANLIB}) |
| endif() |
| endif() |
| endif() |
| |
| # Coverage build type |
| set(CMAKE_CXX_FLAGS_COVERAGE "${CMAKE_CXX_FLAGS_DEBUG}" CACHE STRING |
| "Flags used by the C++ compiler during coverage builds." |
| FORCE) |
| set(CMAKE_EXE_LINKER_FLAGS_COVERAGE |
| "${CMAKE_EXE_LINKER_FLAGS_DEBUG}" CACHE STRING |
| "Flags used for linking binaries during coverage builds." |
| FORCE) |
| set(CMAKE_SHARED_LINKER_FLAGS_COVERAGE |
| "${CMAKE_SHARED_LINKER_FLAGS_DEBUG}" CACHE STRING |
| "Flags used by the shared libraries linker during coverage builds." |
| FORCE) |
| mark_as_advanced( |
| CMAKE_CXX_FLAGS_COVERAGE |
| CMAKE_EXE_LINKER_FLAGS_COVERAGE |
| CMAKE_SHARED_LINKER_FLAGS_COVERAGE) |
| set(CMAKE_BUILD_TYPE "${CMAKE_BUILD_TYPE}" CACHE STRING |
| "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel Coverage." |
| FORCE) |
| add_cxx_compiler_flag(--coverage COVERAGE) |
| |
| # C++ feature checks |
| cxx_feature_check(STD_REGEX) |
| cxx_feature_check(GNU_POSIX_REGEX) |
| cxx_feature_check(POSIX_REGEX) |
| cxx_feature_check(STEADY_CLOCK) |
| |
| # Ensure we have pthreads |
| find_package(Threads REQUIRED) |
| |
| # Set up directories |
| include_directories(${PROJECT_SOURCE_DIR}/include) |
| |
| # Build the targets |
| add_subdirectory(src) |
| |
| if (BENCHMARK_ENABLE_TESTING) |
| enable_testing() |
| add_subdirectory(test) |
| endif() |
