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include(GNUInstallDirs)
include(CMakePackageConfigHelpers)
# Install all passed libraries including <PROJECT_NAME>Config.cmake and <PROJECT_NAME>ConfigVersion.cmake
# Assumes that your headers are in 'include/'
# Uses GNUInstallDirs to determine install locations
# Note: Use of BUILD_INTERFACE for headers is not required as it will be fixed up
# Arguments:
# - TARGETS: List of targets to install
# - NAMESPACE: Namespace to use (Installed libraries will be available as "Namespace::Name")
# - CONFIG_FILE: If passed, this will be used to configure the *Config.cmake,
# else a reasonable default will be used which is enough if there are no dependencies
# - VERSION_COMPATIBILITY: Compatibility with requested version. Defaults to SemVer semantics (SameMajorVersion)
function(install_targets)
cmake_parse_arguments(PARSE_ARGV 0 ARG "" "NAMESPACE;CONFIG_FILE;VERSION_COMPATIBILITY" "TARGETS")
if(ARG_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "Invalid argument(s): ${ARG_UNPARSED_ARGUMENTS}")
endif()
if(ARG_NAMESPACE)
string(APPEND ARG_NAMESPACE "::")
endif()
if(NOT ARG_CONFIG_FILE)
set(ARG_CONFIG_FILE "${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.cmake.in")
file(WRITE ${ARG_CONFIG_FILE}
"@PACKAGE_INIT@\n"
"include(\"\${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@Targets.cmake\")\n"
"check_required_components(\"@PROJECT_NAME@\")\n"
)
endif()
if(NOT ARG_VERSION_COMPATIBILITY)
set(ARG_VERSION_COMPATIBILITY SameMajorVersion)
endif()
# Fixup INTERFACE_INCLUDE_DIRECTORIES:
# Wrap source includes into BUILD_INTERFACE
foreach(tgt IN LISTS ARG_TARGETS)
get_target_property(old_inc_dirs ${tgt} INTERFACE_INCLUDE_DIRECTORIES)
set(inc_dirs "")
foreach(dir IN LISTS old_inc_dirs)
string(FIND "${dir}" "${PROJECT_SOURCE_DIR}" pos)
string(FIND "${dir}" "${PROJECT_BINARY_DIR}" pos2)
if(pos EQUAL 0 OR pos2 EQUAL 0)
set(dir "$<BUILD_INTERFACE:${dir}>")
endif()
list(APPEND inc_dirs "${dir}")
endforeach()
set_target_properties(${tgt} PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${inc_dirs}")
endforeach()
install(TARGETS ${ARG_TARGETS}
EXPORT ${PROJECT_NAME}Targets
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
)
install(DIRECTORY include/ DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
set(configFile ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake)
set(versionFile ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake)
set(configInstallDestination lib/cmake/${PROJECT_NAME})
configure_package_config_file(${ARG_CONFIG_FILE} ${configFile} INSTALL_DESTINATION ${configInstallDestination})
write_basic_package_version_file(${versionFile} COMPATIBILITY ${ARG_VERSION_COMPATIBILITY})
install(FILES ${configFile} ${versionFile} DESTINATION ${configInstallDestination})
install(
EXPORT ${PROJECT_NAME}Targets
NAMESPACE ${ARG_NAMESPACE}
DESTINATION ${configInstallDestination}
)
endfunction()
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