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PackageComps.md

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PackageComps.cmake

Export and import targets as individual components. Special components shared and static

Example

The main CMakeLists.txt that exports the target:

cmake_minimum_required(VERSION 3.20)

project(My_Project)

find_package(CMakeExtraUtils REQUIRED)
include(PackageComps)

add_library(my_component_library)
# Export as a component
export_component(COMPONENT my_component)

# Usual export configuration
include(CMakePackageConfigHelpers)
write_basic_package_version_file(
		My_ProjectConfigVersion.cmake
		VERSION ${PROJECT_VERSION}
		COMPATIBILITY SameMajorVersion)
configure_package_config_file(
		cmake/My_ProjectConfig.cmake.in
		My_ProjectConfig.cmake
		INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/My_Project)
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/My_ProjectConfigVersion.cmake
		${CMAKE_CURRENT_BINARY_DIR}/My_ProjectConfig.cmake
		## Consider bundling PackageComps.cmake to minimize dependency
        # /path/to/PackageComps.cmake
		DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/My_Project)

with My_ProjectConfig.cmake.in

find_package(CMakeExtraUtils REQUIRED)
include(PackageComps)
## Or if bundled
# include(${CURRENT_LIST_DIR}/PackageComps.cmake)
find_components(COMPONENTS my_component)

The user will then be able to use:

cmake_minimum_required(VERSION 3.20)

project(Downstream_Project)

find_package(My_Project COMPONENTS my_component)