mirror of
https://github.com/ToruNiina/toml11.git
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7fb8b84143
When adding this library as embedded library with private "target link", e.g., only used inside private source files, the library does not need to be installed when the main project gets installed. This adds an additional option `toml11_INSTALL` similar to the test-build control switch in order to skip installing headers and CMake config files if requested. Avoids using ```cmake add_subdirectory(path/to/toml11 EXCLUDE_FROM_ALL) ``` which has further side-effects: https://cmake.org/cmake/help/v3.0/command/add_subdirectory.html
117 lines
4.1 KiB
CMake
117 lines
4.1 KiB
CMake
cmake_minimum_required(VERSION 3.1)
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enable_testing()
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project(toml11 VERSION 3.7.0)
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option(toml11_BUILD_TEST "Build toml tests" OFF)
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option(toml11_INSTALL "Install CMake targets during install step." ON)
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option(toml11_TEST_WITH_ASAN "use LLVM address sanitizer" OFF)
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option(toml11_TEST_WITH_UBSAN "use LLVM undefined behavior sanitizer" OFF)
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include(CheckCXXCompilerFlag)
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if("${CMAKE_VERSION}" VERSION_GREATER 3.1)
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set(CMAKE_CXX_EXTENSIONS OFF CACHE BOOL "Boolean specifying whether compiler specific extensions are requested.")
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if(NOT DEFINED CMAKE_CXX_STANDARD)
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set(CMAKE_CXX_STANDARD 11 CACHE STRING "The C++ standard whose features are requested to build all targets.")
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endif()
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set(CMAKE_CXX_STANDARD_REQUIRED ON CACHE BOOL "Boolean describing whether the value of CXX_STANDARD is a requirement.")
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else()
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# Manually check for C++11 compiler flag.
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CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
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CHECK_CXX_COMPILER_FLAG("-std=c++0x" COMPILER_SUPPORTS_CXX0X)
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CHECK_CXX_COMPILER_FLAG("-std=gnu++11" COMPILER_SUPPORTS_GNU11)
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CHECK_CXX_COMPILER_FLAG("-std=gnu++0x" COMPILER_SUPPORTS_GNU0X)
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if(COMPILER_SUPPORTS_CXX11)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
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elseif(COMPILER_SUPPORTS_CXXOX)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
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elseif(COMPILER_SUPPORTS_GNU11)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++11")
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elseif(COMPILER_SUPPORTS_GNU0X)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++0x")
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else()
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if(MSVC)
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if(MSVC_VERSION LESS 1900)
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message(SEND_ERROR "MSVC < 14.0 is not supported. Please update your compiler or use mingw")
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endif()
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else()
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message(SEND_ERROR "The ${CMAKE_CXX_COMPILER} compiler lacks C++11 support. Use another compiler.")
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endif()
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endif()
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endif()
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if(MSVC)
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# add_definitions("/Zc:__cplusplus") # define __cplusplus value correctly
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add_definitions("/utf-8") # enable to use u8"" literal
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if(MSVC_VERSION LESS 1910)
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message(STATUS "MSVC < 1910. DEFINE_CONVERSION_NON_INTRUSIVE is disabled")
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add_definitions(-DTOML11_WITHOUT_DEFINE_NON_INTRUSIVE)
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elseif(MSVC_VERSION LESS 1920)
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add_definitions("/experimental:preprocessor") # MSVC 2017
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else()
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add_definitions("/Zc:preprocessor") # MSVC 2019
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endif()
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endif()
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# Set some common directories
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include(GNUInstallDirs)
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set(toml11_install_cmake_dir ${CMAKE_INSTALL_LIBDIR}/cmake/toml11)
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set(toml11_install_include_dir ${CMAKE_INSTALL_INCLUDEDIR})
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set(toml11_config_dir ${CMAKE_CURRENT_BINARY_DIR}/cmake/)
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set(toml11_config ${toml11_config_dir}/toml11Config.cmake)
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set(toml11_config_version ${toml11_config_dir}/toml11ConfigVersion.cmake)
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add_library(toml11 INTERFACE)
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target_include_directories(toml11 INTERFACE
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$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
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$<INSTALL_INTERFACE:${toml11_install_include_dir}>
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)
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add_library(toml11::toml11 ALIAS toml11)
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# Write config and version config files
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include(CMakePackageConfigHelpers)
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write_basic_package_version_file(
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${toml11_config_version}
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VERSION ${toml11_VERSION}
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COMPATIBILITY SameMajorVersion
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)
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if (toml11_INSTALL)
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configure_package_config_file(
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cmake/toml11Config.cmake.in
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${toml11_config}
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INSTALL_DESTINATION ${toml11_install_cmake_dir}
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PATH_VARS toml11_install_cmake_dir
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)
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# Install config files
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install(FILES ${toml11_config} ${toml11_config_version}
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DESTINATION ${toml11_install_cmake_dir}
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)
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# Install header files
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install(
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FILES toml.hpp
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DESTINATION "${toml11_install_include_dir}"
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)
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install(
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DIRECTORY "toml"
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DESTINATION "${toml11_install_include_dir}"
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FILES_MATCHING PATTERN "*.hpp"
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)
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# Export targets and install them
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install(TARGETS toml11
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EXPORT toml11Targets
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)
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install(EXPORT toml11Targets
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FILE toml11Targets.cmake
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DESTINATION ${toml11_install_cmake_dir}
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NAMESPACE toml11::
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)
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endif()
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if (toml11_BUILD_TEST)
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add_subdirectory(tests)
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endif ()
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