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doctest/CMakeLists.txt

156 lines
6.0 KiB
CMake

cmake_minimum_required(VERSION 3.0)
if(POLICY CMP0077)
cmake_policy(SET CMP0077 NEW)
endif()
################################################################################
## DOCTEST
################################################################################
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/scripts/version.txt ver)
project(doctest VERSION ${ver} LANGUAGES CXX)
# Determine if doctest is built as a subproject (using add_subdirectory) or if it is the main project.
set(MAIN_PROJECT OFF)
if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
set(MAIN_PROJECT ON)
endif()
option(DOCTEST_WITH_TESTS "Build tests/examples" ${MAIN_PROJECT})
option(DOCTEST_WITH_MAIN_IN_STATIC_LIB "Build a static lib (cmake target) with a default main entry point" ON)
option(DOCTEST_NO_INSTALL "Skip the installation process" OFF)
option(DOCTEST_USE_STD_HEADERS "Use std headers" OFF)
add_library(${PROJECT_NAME} INTERFACE)
add_library(${PROJECT_NAME}::${PROJECT_NAME} ALIAS ${PROJECT_NAME})
if(NOT CMAKE_VERSION VERSION_LESS 3.8)
target_compile_features(${PROJECT_NAME} INTERFACE cxx_std_11)
endif()
set(doctest_parts_folder "${CMAKE_CURRENT_SOURCE_DIR}/doctest/parts")
set(doctest_folder "${CMAKE_CURRENT_SOURCE_DIR}/") # in order to have the mpi extension files, not included into the doctest.h single header
if(MAIN_PROJECT)
# use a special hidden version of the header which directly includes the 2 parts - proper reporting of file/line locations during dev
target_include_directories(${PROJECT_NAME} INTERFACE
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/scripts/development_only/>
$<BUILD_INTERFACE:${doctest_parts_folder}>
$<BUILD_INTERFACE:${doctest_folder}>)
# add a custom target that assembles the single header when any of the parts are touched
add_custom_command(
OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/doctest/doctest.h
DEPENDS
${doctest_parts_folder}/doctest_fwd.h
${doctest_parts_folder}/doctest.cpp
COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_SOURCE_DIR}/scripts/cmake/assemble_single_header.cmake
COMMENT "assembling the single header")
add_custom_target(assemble_single_header ALL DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/doctest/doctest.h)
else()
target_include_directories(${PROJECT_NAME} INTERFACE $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/>)
endif()
# hack to support building on XCode 6 and 7 - propagate the definition to everything
if(DEFINED DOCTEST_THREAD_LOCAL)
target_compile_definitions(${PROJECT_NAME} INTERFACE
DOCTEST_THREAD_LOCAL=${DOCTEST_THREAD_LOCAL})
endif()
if(DOCTEST_USE_STD_HEADERS)
target_compile_definitions(${PROJECT_NAME} INTERFACE DOCTEST_CONFIG_USE_STD_HEADERS)
endif()
################################################################################
## TESTS/EXAMPLES/HELPERS
################################################################################
if(${DOCTEST_WITH_MAIN_IN_STATIC_LIB})
add_library(${PROJECT_NAME}_with_main STATIC EXCLUDE_FROM_ALL ${doctest_parts_folder}/doctest.cpp)
add_library(${PROJECT_NAME}::${PROJECT_NAME}_with_main ALIAS ${PROJECT_NAME}_with_main)
target_compile_definitions(${PROJECT_NAME}_with_main PRIVATE
DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN)
set_target_properties(${PROJECT_NAME}_with_main PROPERTIES CXX_STANDARD 11 CXX_STANDARD_REQUIRED ON)
target_link_libraries(${PROJECT_NAME}_with_main PUBLIC ${PROJECT_NAME})
endif()
if(MAIN_PROJECT AND DOCTEST_WITH_TESTS)
include(scripts/cmake/common.cmake)
add_subdirectory(examples/all_features)
add_subdirectory(examples/exe_with_static_libs)
add_subdirectory(examples/executable_dll_and_plugin)
add_subdirectory(examples/combining_the_same_tests_built_differently_in_multiple_shared_objects)
add_subdirectory(scripts/playground)
add_subdirectory(examples/mpi)
endif()
################################################################################
## PACKAGE SUPPORT
################################################################################
set(generated_dir "${CMAKE_CURRENT_BINARY_DIR}/generated")
if(CMAKE_SYSTEM_NAME STREQUAL Linux)
include(GNUInstallDirs)
set(include_install_dir ${CMAKE_INSTALL_INCLUDEDIR})
set(config_install_dir "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")
else()
set(include_install_dir "include")
set(config_install_dir "lib/cmake/${PROJECT_NAME}")
endif()
set(version_config "${generated_dir}/${PROJECT_NAME}ConfigVersion.cmake")
set(project_config "${generated_dir}/${PROJECT_NAME}Config.cmake")
set(targets_export_name "${PROJECT_NAME}Targets")
set(namespace "${PROJECT_NAME}::")
include(CMakePackageConfigHelpers)
# CMake automatically adds an architecture compatibility check to make sure
# 32 and 64 bit code is not accidentally mixed. For a header-only library this
# is not required. The check can be disabled by temporarily unsetting
# CMAKE_SIZEOF_VOID_P. In CMake 3.14 and later this can be achieved more cleanly
# with write_basic_package_version_file(ARCH_INDEPENDENT).
# TODO: Use this once a newer CMake can be required.
set(DOCTEST_SIZEOF_VOID_P ${CMAKE_SIZEOF_VOID_P})
unset(CMAKE_SIZEOF_VOID_P)
write_basic_package_version_file(
"${version_config}" VERSION ${PROJECT_VERSION} COMPATIBILITY SameMajorVersion
)
set(CMAKE_SIZEOF_VOID_P ${DOCTEST_SIZEOF_VOID_P})
configure_file("scripts/cmake/Config.cmake.in" "${project_config}" @ONLY)
if(NOT ${DOCTEST_NO_INSTALL})
install(
TARGETS ${PROJECT_NAME}
EXPORT "${targets_export_name}"
INCLUDES DESTINATION "${include_install_dir}"
)
install(
FILES "doctest/doctest.h"
DESTINATION "${include_install_dir}/doctest"
)
install(
FILES "${project_config}" "${version_config}"
DESTINATION "${config_install_dir}"
)
install(
FILES "scripts/cmake/doctest.cmake" "scripts/cmake/doctestAddTests.cmake"
DESTINATION "${config_install_dir}"
)
install(
EXPORT "${targets_export_name}"
NAMESPACE "${namespace}"
DESTINATION "${config_install_dir}"
)
endif()