mirror of
https://github.com/serge1/ELFIO.git
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106 lines
3.3 KiB
CMake
106 lines
3.3 KiB
CMake
cmake_minimum_required(VERSION 3.12)
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# Detect if we are the top level CMakeLists.txt or are we included in some
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# other project
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if(NOT DEFINED PROJECT_NAME)
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set(IS_TOP_PROJECT TRUE)
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endif()
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# Turn this on in order to build elfio examples
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option(ELFIO_BUILD_EXAMPLES "Build ELFIO examples" OFF)
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# Turns this on in order to build tests
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option(ELFIO_BUILD_TESTS "Build ELFIO tests" OFF)
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# Read version from header file
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set(version_header "elfio/elfio_version.hpp")
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file(READ ${version_header} ver)
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string(REGEX MATCH "#define ELFIO_VERSION \"([0-9\.]+)\"" _ ${ver})
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if (NOT CMAKE_MATCH_1)
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message(FATAL_ERROR "Unable to parse version from ${version_header}")
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endif()
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set(version ${CMAKE_MATCH_1})
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# Use configure_file to make configure step depend on elfio_version.hpp
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configure_file(${version_header} ${CMAKE_CURRENT_BINARY_DIR}/elfio_version.hpp.copy COPYONLY)
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project(elfio VERSION ${version} LANGUAGES C CXX)
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include(GNUInstallDirs)
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# Create a header only CMake target for elfio
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add_library(elfio INTERFACE)
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add_library(elfio::elfio ALIAS elfio)
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target_include_directories(
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elfio
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INTERFACE
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$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
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if (ELFIO_BUILD_EXAMPLES)
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add_subdirectory(examples)
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endif()
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if (ELFIO_BUILD_TESTS AND IS_TOP_PROJECT)
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enable_testing()
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add_subdirectory(tests)
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endif()
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# If this is the top level project, add in logic to install elfio
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if (IS_TOP_PROJECT)
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include(CMakePackageConfigHelpers)
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# Create a file that includes the current project version. This will be
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# installed with the elfio CMake package.
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write_basic_package_version_file(
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"${PROJECT_NAME}ConfigVersion.cmake"
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VERSION
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${PROJECT_VERSION}
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COMPATIBILITY
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SameMajorVersion)
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# Create the default ${PROJECT_NAME}Config.cmake file which will be
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# installed and found by calls to `find_package(elfio)`.
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configure_package_config_file(
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"${PROJECT_SOURCE_DIR}/cmake/${PROJECT_NAME}Config.cmake.in"
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"${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
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INSTALL_DESTINATION
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${CMAKE_INSTALL_DATAROOTDIR}/${PROJECT_NAME}/cmake)
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# Install the previously generated "config" and "version" files
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install(
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FILES
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"${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
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"${PROJECT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake"
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DESTINATION
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${CMAKE_INSTALL_DATAROOTDIR}/${PROJECT_NAME}/cmake)
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# Install the entire local `elfio` directory to the include directory
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install(
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DIRECTORY
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elfio
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DESTINATION
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${CMAKE_INSTALL_INCLUDEDIR})
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# Create a ${PROJECT_NAME}Targets.cmake file that is referenced by the
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# ${PROJECT_NAME}Config.cmake file and includes the target information
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# needed to compile/link against all targets exported under the
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# ${PROJECT_NAME}_Targets export
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install(
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EXPORT
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${PROJECT_NAME}_Targets
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FILE
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${PROJECT_NAME}Targets.cmake
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NAMESPACE
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${PROJECT_NAME}::
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DESTINATION
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${CMAKE_INSTALL_DATAROOTDIR}/${PROJECT_NAME}/cmake)
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# Add the elfio target to the ${PROJECT_NAME}_Targets export
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install(
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TARGETS
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elfio
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EXPORT
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${PROJECT_NAME}_Targets)
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endif() |