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# Copyright (c) 2014 Jarryd Beck
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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if (CMAKE_VERSION VERSION_GREATER 3.10 OR CMAKE_VERSION VERSION_EQUAL 3.10)
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# Use include_guard() added in cmake 3.10
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include_guard()
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endif()
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include(CMakePackageConfigHelpers)
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function(cxxopts_getversion version_arg)
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# Parse the current version from the cxxopts header
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file(STRINGS "${CMAKE_CURRENT_SOURCE_DIR}/include/cxxopts.hpp" cxxopts_version_defines
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REGEX "#define CXXOPTS__VERSION_(MAJOR|MINOR|PATCH)")
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foreach(ver ${cxxopts_version_defines})
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if(ver MATCHES "#define CXXOPTS__VERSION_(MAJOR|MINOR|PATCH) +([^ ]+)$")
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set(CXXOPTS__VERSION_${CMAKE_MATCH_1} "${CMAKE_MATCH_2}" CACHE INTERNAL "")
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endif()
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endforeach()
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set(VERSION ${CXXOPTS__VERSION_MAJOR}.${CXXOPTS__VERSION_MINOR}.${CXXOPTS__VERSION_PATCH})
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# Give feedback to the user. Prefer DEBUG when available since large projects tend to have a lot
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# going on already
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if (CMAKE_VERSION VERSION_GREATER 3.15 OR CMAKE_VERSION VERSION_EQUAL 3.15)
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message(DEBUG "cxxopts version ${VERSION}")
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else()
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message(STATUS "cxxopts version ${VERSION}")
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endif()
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# Return the information to the caller
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set(${version_arg} ${VERSION} PARENT_SCOPE)
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endfunction()
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# Optionally, enable unicode support using the ICU library
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function(cxxopts_use_unicode)
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find_package(PkgConfig)
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pkg_check_modules(ICU REQUIRED icu-uc)
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target_link_libraries(cxxopts INTERFACE ${ICU_LDFLAGS})
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target_compile_options(cxxopts INTERFACE ${ICU_CFLAGS})
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target_compile_definitions(cxxopts INTERFACE CXXOPTS_USE_UNICODE)
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endfunction()
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# Request C++11 without gnu extension for the whole project and enable more warnings
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macro(cxxopts_set_cxx_standard)
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if (CXXOPTS_CXX_STANDARD)
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set(CMAKE_CXX_STANDARD ${CXXOPTS_CXX_STANDARD})
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else()
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set(CMAKE_CXX_STANDARD 11)
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endif()
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set(CMAKE_CXX_EXTENSIONS OFF)
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endmacro()
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# Helper function to enable warnings
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function(cxxopts_enable_warnings)
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if(MSVC)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W2")
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elseif(CMAKE_CXX_COMPILER_ID MATCHES "[Cc]lang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU")
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if (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
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if (${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER_EQUAL 5.0)
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set(COMPILER_SPECIFIC_FLAGS "-Wsuggest-override")
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endif()
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endif()
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Werror -Wextra -Wshadow -Weffc++ -Wsign-compare -Wshadow -Wwrite-strings -Wpointer-arith -Winit-self -Wconversion -Wno-sign-conversion ${COMPILER_SPECIFIC_FLAGS}")
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endif()
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set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} PARENT_SCOPE)
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endfunction()
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# Helper function to ecapsulate install logic
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function(cxxopts_install_logic)
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string(REPLACE "/${CMAKE_LIBRARY_ARCHITECTURE}" "" CMAKE_INSTALL_LIBDIR_ARCHIND "${CMAKE_INSTALL_LIBDIR}")
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set(CXXOPTS_CMAKE_DIR "${CMAKE_INSTALL_LIBDIR_ARCHIND}/cmake/cxxopts" CACHE STRING "Installation directory for cmake files, relative to ${CMAKE_INSTALL_PREFIX}.")
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set(version_config "${PROJECT_BINARY_DIR}/cxxopts-config-version.cmake")
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set(project_config "${PROJECT_BINARY_DIR}/cxxopts-config.cmake")
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set(targets_export_name cxxopts-targets)
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set(PackagingTemplatesDir "${PROJECT_SOURCE_DIR}/packaging")
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if(${CMAKE_VERSION} VERSION_GREATER "3.14")
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set(OPTIONAL_ARCH_INDEPENDENT "ARCH_INDEPENDENT")
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endif()
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# Generate the version, config and target files into the build directory.
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write_basic_package_version_file(
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${version_config}
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VERSION ${VERSION}
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COMPATIBILITY AnyNewerVersion
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${OPTIONAL_ARCH_INDEPENDENT}
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)
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configure_package_config_file(
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${PackagingTemplatesDir}/cxxopts-config.cmake.in
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${project_config}
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INSTALL_DESTINATION ${CXXOPTS_CMAKE_DIR})
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export(TARGETS cxxopts NAMESPACE cxxopts::
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FILE ${PROJECT_BINARY_DIR}/${targets_export_name}.cmake)
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# Install version, config and target files.
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install(
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FILES ${project_config} ${version_config}
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DESTINATION ${CXXOPTS_CMAKE_DIR})
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install(EXPORT ${targets_export_name} DESTINATION ${CXXOPTS_CMAKE_DIR}
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NAMESPACE cxxopts::)
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# Install the header file and export the target
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install(TARGETS cxxopts EXPORT ${targets_export_name} DESTINATION ${CMAKE_INSTALL_LIBDIR})
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install(FILES ${PROJECT_SOURCE_DIR}/include/cxxopts.hpp DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
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set(CPACK_PACKAGE_NAME "${PROJECT_NAME}")
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set(CPACK_PACKAGE_VENDOR "cxxopt developers")
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set(CPACK_PACKAGE_DESCRIPTION "${PROJECT_DESCRIPTION}")
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set(CPACK_DEBIAN_PACKAGE_NAME "${CPACK_PACKAGE_NAME}")
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set(CPACK_RPM_PACKAGE_NAME "${CPACK_PACKAGE_NAME}")
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set(CPACK_PACKAGE_HOMEPAGE_URL "${PROJECT_HOMEPAGE_URL}")
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set(CPACK_PACKAGE_MAINTAINER "${CPACK_PACKAGE_VENDOR}")
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set(CPACK_DEBIAN_PACKAGE_MAINTAINER "${CPACK_PACKAGE_MAINTAINER}")
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set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE")
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set(CPACK_RESOURCE_FILE_README "${CMAKE_CURRENT_SOURCE_DIR}/README.md")
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set(CPACK_DEBIAN_PACKAGE_NAME "lib${PROJECT_NAME}-dev")
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set(CPACK_DEBIAN_PACKAGE_DEPENDS "libc6-dev")
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set(CPACK_DEBIAN_PACKAGE_SUGGESTS "cmake, pkg-config, pkg-conf")
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set(CPACK_RPM_PACKAGE_NAME "lib${PROJECT_NAME}-devel")
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set(CPACK_RPM_PACKAGE_SUGGESTS "${CPACK_DEBIAN_PACKAGE_SUGGESTS}")
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set(CPACK_DEB_COMPONENT_INSTALL ON)
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set(CPACK_RPM_COMPONENT_INSTALL ON)
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set(CPACK_NSIS_COMPONENT_INSTALL ON)
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set(CPACK_DEBIAN_COMPRESSION_TYPE "xz")
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set(PKG_CONFIG_FILE_NAME "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.pc")
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configure_file("${PackagingTemplatesDir}/pkgconfig.pc.in" "${PKG_CONFIG_FILE_NAME}" @ONLY)
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install(FILES "${PKG_CONFIG_FILE_NAME}"
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DESTINATION "${CMAKE_INSTALL_LIBDIR_ARCHIND}/pkgconfig"
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)
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include(CPack)
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endfunction()
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