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85b4d7c8d6
This is needed in order to support usage of this library as a subdirectory in a parent project. In that situation, prior to this change, the inclusion of CTest would unconditionally enable BUILD_TESTING which would then bleed into other parts of the project. Also added some comments explaining how this logic works.
160 lines
4.9 KiB
CMake
160 lines
4.9 KiB
CMake
#
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# Copyright(c) 2015 Ruslan Baratov.
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# Distributed under the MIT License (http://opensource.org/licenses/MIT)
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#
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cmake_minimum_required(VERSION 3.1)
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project(spdlog VERSION 1.3.0 LANGUAGES CXX)
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include(CMakeDependentOption)
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include(GNUInstallDirs)
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#---------------------------------------------------------------------------------------
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# set default build to release
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#---------------------------------------------------------------------------------------
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if(NOT CMAKE_BUILD_TYPE)
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set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose Release or Debug" FORCE)
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endif()
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message(STATUS "Build type: " ${CMAKE_BUILD_TYPE})
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#---------------------------------------------------------------------------------------
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# compiler config
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#---------------------------------------------------------------------------------------
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set(CMAKE_CXX_STANDARD 11)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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set(CMAKE_CXX_EXTENSIONS OFF)
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if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
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add_compile_options("-Wall")
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add_compile_options("-Wextra")
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add_compile_options("-Wconversion")
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add_compile_options("-pedantic")
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add_compile_options("-Wfatal-errors")
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endif()
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#---------------------------------------------------------------------------------------
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# address sanitizers check
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#---------------------------------------------------------------------------------------
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include(cmake/sanitizers.cmake)
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#---------------------------------------------------------------------------------------
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# spdlog target
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#---------------------------------------------------------------------------------------
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add_library(spdlog INTERFACE)
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add_library(spdlog::spdlog ALIAS spdlog)
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# Check if spdlog is being used directly or via add_subdirectory
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set(SPDLOG_MASTER_PROJECT OFF)
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if (CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
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set(SPDLOG_MASTER_PROJECT ON)
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endif()
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option(SPDLOG_BUILD_EXAMPLES "Build examples" ${SPDLOG_MASTER_PROJECT})
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option(SPDLOG_BUILD_BENCH "Build benchmarks" ${SPDLOG_MASTER_PROJECT})
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# Logic for enabling tests: If the user does not explicitly
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# specify the value of the SPDLOG_BUILD_TESTING variable then the
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# logic is simpler to reason about: that is, testing will be
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# built if and only if BUILD_TESTING is ON and we are a Master
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# Project. On the other hand, if the user overrides the value of
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# SPDLOG_BUILD_TESTING then it can get a bit more tricky due to
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# caching.
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cmake_dependent_option(SPDLOG_BUILD_TESTING
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"Build spdlog tests" ${SPDLOG_MASTER_PROJECT}
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"BUILD_TESTING" OFF
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)
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if(SPDLOG_BUILD_TESTING)
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# Include CTest conditionally since it will enable BUILD_TESTING.
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include(CTest)
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endif()
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target_include_directories(
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spdlog
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INTERFACE
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"$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>"
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"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
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)
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set(HEADER_BASE "${CMAKE_CURRENT_SOURCE_DIR}/include")
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if(SPDLOG_BUILD_EXAMPLES)
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add_subdirectory(example)
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endif()
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if(SPDLOG_BUILD_TESTING)
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add_subdirectory(tests)
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endif()
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if(SPDLOG_BUILD_BENCH)
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add_subdirectory(bench)
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endif()
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#---------------------------------------------------------------------------------------
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# Install/export targets and files
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#---------------------------------------------------------------------------------------
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# set files and directories
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set(config_install_dir "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")
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set(include_install_dir "${CMAKE_INSTALL_INCLUDEDIR}")
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set(pkgconfig_install_dir "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
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set(version_config "${CMAKE_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake")
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set(project_config "${PROJECT_NAME}Config.cmake")
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set(pkg_config "${CMAKE_BINARY_DIR}/${PROJECT_NAME}.pc")
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set(targets_export_name "${PROJECT_NAME}Targets")
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set(namespace "${PROJECT_NAME}::")
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# generate package version file
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include(CMakePackageConfigHelpers)
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write_basic_package_version_file(
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"${version_config}" COMPATIBILITY SameMajorVersion
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)
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# configure pkg config file
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configure_file("cmake/spdlog.pc.in" "${pkg_config}" @ONLY)
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# install targets
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install(
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TARGETS spdlog
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EXPORT "${targets_export_name}"
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)
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# install headers
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install(
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DIRECTORY "${HEADER_BASE}/${PROJECT_NAME}"
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DESTINATION "${include_install_dir}"
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)
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# install project version file
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install(
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FILES "${version_config}"
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DESTINATION "${config_install_dir}"
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)
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# install pkg config file
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install(
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FILES "${pkg_config}"
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DESTINATION "${pkgconfig_install_dir}"
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)
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# install project config file
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install(
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EXPORT "${targets_export_name}"
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NAMESPACE "${namespace}"
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DESTINATION "${config_install_dir}"
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FILE ${project_config}
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)
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# export build directory config file
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export(
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EXPORT ${targets_export_name}
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NAMESPACE "${namespace}"
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FILE ${project_config}
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)
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# register project in CMake user registry
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export(PACKAGE ${PROJECT_NAME})
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file(GLOB_RECURSE spdlog_include_SRCS "${HEADER_BASE}/*.h")
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add_custom_target(spdlog_headers_for_ide SOURCES ${spdlog_include_SRCS})
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