mirror of
https://github.com/catchorg/Catch2.git
synced 2025-04-29 04:03:51 +00:00
cec35630fb
The `Catch2WithMain` target was added experimentally for v2.13.4 to provide potentially better compilation (and link) times to users. However, having it compiled by default causes worse experience for people who do not use it, and for the v2 versions the single include distribution is still the main one. Closes #2142
254 lines
7.5 KiB
CMake
254 lines
7.5 KiB
CMake
cmake_minimum_required(VERSION 3.5)
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# detect if Catch is being bundled,
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# disable testsuite in that case
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if(NOT DEFINED PROJECT_NAME)
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set(NOT_SUBPROJECT ON)
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endif()
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# Catch2's build breaks if done in-tree. You probably should not build
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# things in tree anyway, but we can allow projects that include Catch2
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# as a subproject to build in-tree as long as it is not in our tree.
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if (CMAKE_BINARY_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
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message(FATAL_ERROR "Building in-source is not supported! Create a build dir and remove ${CMAKE_SOURCE_DIR}/CMakeCache.txt")
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endif()
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project(Catch2 LANGUAGES CXX VERSION 2.13.4)
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# Provide path for scripts
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list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/CMake")
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include(GNUInstallDirs)
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option(CATCH_USE_VALGRIND "Perform SelfTests with Valgrind" OFF)
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option(CATCH_BUILD_TESTING "Build SelfTest project" ON)
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option(CATCH_BUILD_EXAMPLES "Build documentation examples" OFF)
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option(CATCH_BUILD_EXTRA_TESTS "Build extra tests" OFF)
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option(CATCH_BUILD_STATIC_LIBRARY "Builds static library from the main implementation. EXPERIMENTAL" OFF)
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option(CATCH_ENABLE_COVERAGE "Generate coverage for codecov.io" OFF)
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option(CATCH_ENABLE_WERROR "Enable all warnings as errors" ON)
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option(CATCH_INSTALL_DOCS "Install documentation alongside library" ON)
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option(CATCH_INSTALL_HELPERS "Install contrib alongside library" ON)
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# define some folders
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set(CATCH_DIR ${CMAKE_CURRENT_SOURCE_DIR})
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set(SELF_TEST_DIR ${CATCH_DIR}/projects/SelfTest)
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set(BENCHMARK_DIR ${CATCH_DIR}/projects/Benchmark)
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set(HEADER_DIR ${CATCH_DIR}/include)
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if(USE_WMAIN)
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /ENTRY:wmainCRTStartup")
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endif()
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if(NOT_SUBPROJECT)
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include(CTest)
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set_property(GLOBAL PROPERTY USE_FOLDERS ON)
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if(BUILD_TESTING AND CATCH_BUILD_TESTING)
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find_package(PythonInterp)
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if (NOT PYTHONINTERP_FOUND)
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message(FATAL_ERROR "Python not found, but required for tests")
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endif()
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add_subdirectory(projects)
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endif()
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endif()
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if(CATCH_BUILD_EXAMPLES)
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add_subdirectory(examples)
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endif()
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if(CATCH_BUILD_EXTRA_TESTS)
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add_subdirectory(projects/ExtraTests)
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endif()
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# add catch as a 'linkable' target
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add_library(Catch2 INTERFACE)
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# depend on some obvious c++11 features so the dependency is transitively added dependents
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target_compile_features(Catch2
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INTERFACE
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cxx_alignas
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cxx_alignof
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cxx_attributes
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cxx_auto_type
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cxx_constexpr
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cxx_defaulted_functions
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cxx_deleted_functions
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cxx_final
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cxx_lambdas
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cxx_noexcept
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cxx_override
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cxx_range_for
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cxx_rvalue_references
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cxx_static_assert
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cxx_strong_enums
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cxx_trailing_return_types
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cxx_unicode_literals
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cxx_user_literals
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cxx_variadic_macros
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)
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target_include_directories(Catch2
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INTERFACE
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$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/single_include>
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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)
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if (ANDROID)
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target_link_libraries(Catch2 INTERFACE log)
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endif()
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# provide a namespaced alias for clients to 'link' against if catch is included as a sub-project
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add_library(Catch2::Catch2 ALIAS Catch2)
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# Hacky support for compiling the impl into a static lib
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if (CATCH_BUILD_STATIC_LIBRARY)
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add_library(Catch2WithMain ${CMAKE_CURRENT_LIST_DIR}/src/catch_with_main.cpp)
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target_link_libraries(Catch2WithMain PUBLIC Catch2)
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add_library(Catch2::Catch2WithMain ALIAS Catch2WithMain)
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# Make the build reproducible on versions of g++ and clang that supports -ffile-prefix-map
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if(("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" AND NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 8) OR
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("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" AND NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 10))
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target_compile_options(Catch2WithMain PRIVATE "-ffile-prefix-map=${CMAKE_SOURCE_DIR}=.")
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endif()
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endif(CATCH_BUILD_STATIC_LIBRARY)
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# Only perform the installation steps when Catch is not being used as
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# a subproject via `add_subdirectory`, or the destinations will break,
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# see https://github.com/catchorg/Catch2/issues/1373
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if (NOT_SUBPROJECT)
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include(CMakePackageConfigHelpers)
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set(CATCH_CMAKE_CONFIG_DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/Catch2")
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configure_package_config_file(
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${CMAKE_CURRENT_LIST_DIR}/CMake/Catch2Config.cmake.in
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${CMAKE_CURRENT_BINARY_DIR}/Catch2Config.cmake
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INSTALL_DESTINATION
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${CATCH_CMAKE_CONFIG_DESTINATION}
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)
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# Workaround lack of generator expressions in install(TARGETS
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set(InstallationTargets Catch2)
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if (TARGET Catch2WithMain)
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list(APPEND InstallationTargets Catch2WithMain)
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endif()
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# create and install an export set for catch target as Catch2::Catch
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install(
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TARGETS
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${InstallationTargets}
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EXPORT
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Catch2Targets
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DESTINATION
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${CMAKE_INSTALL_LIBDIR}
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)
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install(
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EXPORT
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Catch2Targets
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NAMESPACE
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Catch2::
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DESTINATION
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${CATCH_CMAKE_CONFIG_DESTINATION}
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)
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# By default, FooConfigVersion is tied to architecture that it was
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# generated on. Because Catch2 is header-only, it is arch-independent
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# and thus Catch2ConfigVersion should not be tied to the architecture
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# it was generated on.
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#
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# CMake does not provide a direct customization point for this in
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# `write_basic_package_version_file`, but it can be accomplished
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# indirectly by temporarily redefining `CMAKE_SIZEOF_VOID_P` to an
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# empty string. Note that just undefining the variable could be
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# insufficient in cases where the variable was already in CMake cache
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set(CATCH2_CMAKE_SIZEOF_VOID_P ${CMAKE_SIZEOF_VOID_P})
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set(CMAKE_SIZEOF_VOID_P "")
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write_basic_package_version_file(
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"${CMAKE_CURRENT_BINARY_DIR}/Catch2ConfigVersion.cmake"
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COMPATIBILITY
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SameMajorVersion
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)
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set(CMAKE_SIZEOF_VOID_P ${CATCH2_CMAKE_SIZEOF_VOID_P})
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install(
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DIRECTORY
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"single_include/"
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DESTINATION
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"${CMAKE_INSTALL_INCLUDEDIR}"
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)
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install(
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FILES
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"${CMAKE_CURRENT_BINARY_DIR}/Catch2Config.cmake"
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"${CMAKE_CURRENT_BINARY_DIR}/Catch2ConfigVersion.cmake"
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DESTINATION
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${CATCH_CMAKE_CONFIG_DESTINATION}
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)
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# Install documentation
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if(CATCH_INSTALL_DOCS)
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install(
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DIRECTORY
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docs/
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DESTINATION
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"${CMAKE_INSTALL_DOCDIR}"
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)
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endif()
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if(CATCH_INSTALL_HELPERS)
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# Install CMake scripts
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install(
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FILES
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"contrib/ParseAndAddCatchTests.cmake"
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"contrib/Catch.cmake"
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"contrib/CatchAddTests.cmake"
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DESTINATION
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${CATCH_CMAKE_CONFIG_DESTINATION}
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)
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# Install debugger helpers
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install(
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FILES
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"contrib/gdbinit"
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"contrib/lldbinit"
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DESTINATION
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${CMAKE_INSTALL_DATAROOTDIR}/Catch2
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)
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endif()
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## Provide some pkg-config integration
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set(PKGCONFIG_INSTALL_DIR
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"${CMAKE_INSTALL_DATAROOTDIR}/pkgconfig"
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CACHE PATH "Path where catch2.pc is installed"
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)
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configure_file(
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${CMAKE_CURRENT_SOURCE_DIR}/CMake/catch2.pc.in
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${CMAKE_CURRENT_BINARY_DIR}/catch2.pc
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@ONLY
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)
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install(
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FILES
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"${CMAKE_CURRENT_BINARY_DIR}/catch2.pc"
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DESTINATION
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${PKGCONFIG_INSTALL_DIR}
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)
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# CPack/CMake started taking the package version from project version 3.12
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# So we need to set the version manually for older CMake versions
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if(${CMAKE_VERSION} VERSION_LESS "3.12.0")
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set(CPACK_PACKAGE_VERSION ${PROJECT_VERSION})
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endif()
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set(CPACK_PACKAGE_CONTACT "https://github.com/catchorg/Catch2/")
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include( CPack )
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endif(NOT_SUBPROJECT)
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