include(CMakeParseArguments) function(find_pkg_config_with_fallback name) cmake_parse_arguments(ARGS "" "PKG_CONFIG_NAME" "LIB_NAMES;LIB_DIR_HINTS;INCLUDE_NAMES;INCLUDE_DIR_PATHS;INCLUDE_DIR_HINTS;INCLUDE_DIR_SUFFIXES;DEPENDS" ${ARGN}) set(${name}_PKG_CONFIG_NAME ${ARGS_PKG_CONFIG_NAME} PARENT_SCOPE) find_package(PkgConfig) if(PKG_CONFIG_FOUND) pkg_search_module(${name}_PKG_CONFIG QUIET ${ARGS_PKG_CONFIG_NAME}) endif(PKG_CONFIG_FOUND) if (${name}_PKG_CONFIG_FOUND) # Found via pkg-config, using its result values set(${name}_FOUND ${${name}_PKG_CONFIG_FOUND}) # Try to find real file name of libraries foreach(lib ${${name}_PKG_CONFIG_LIBRARIES}) find_library(${name}_${lib}_LIBRARY ${lib} HINTS ${${name}_PKG_CONFIG_LIBRARY_DIRS}) mark_as_advanced(${name}_${lib}_LIBRARY) if(NOT ${name}_${lib}_LIBRARY) unset(${name}_FOUND) endif(NOT ${name}_${lib}_LIBRARY) endforeach(lib) if(${name}_FOUND) set(${name}_LIBRARIES "") foreach(lib ${${name}_PKG_CONFIG_LIBRARIES}) list(APPEND ${name}_LIBRARIES ${${name}_${lib}_LIBRARY}) endforeach(lib) list(REMOVE_DUPLICATES ${name}_LIBRARIES) set(${name}_LIBRARIES ${${name}_LIBRARIES} PARENT_SCOPE) list(GET ${name}_LIBRARIES "0" ${name}_LIBRARY) set(${name}_FOUND ${${name}_FOUND} PARENT_SCOPE) set(${name}_INCLUDE_DIRS ${${name}_PKG_CONFIG_INCLUDE_DIRS} PARENT_SCOPE) set(${name}_LIBRARIES ${${name}_PKG_CONFIG_LIBRARIES} PARENT_SCOPE) set(${name}_LIBRARY ${${name}_LIBRARY} PARENT_SCOPE) set(${name}_VERSION ${${name}_PKG_CONFIG_VERSION} PARENT_SCOPE) if(NOT TARGET ${ARGS_PKG_CONFIG_NAME}) add_library(${ARGS_PKG_CONFIG_NAME} INTERFACE IMPORTED) set_property(TARGET ${ARGS_PKG_CONFIG_NAME} PROPERTY INTERFACE_COMPILE_OPTIONS "${${name}_PKG_CONFIG_CFLAGS_OTHER}") set_property(TARGET ${ARGS_PKG_CONFIG_NAME} PROPERTY INTERFACE_INCLUDE_DIRECTORIES "${${name}_PKG_CONFIG_INCLUDE_DIRS}") set_property(TARGET ${ARGS_PKG_CONFIG_NAME} PROPERTY INTERFACE_LINK_LIBRARIES "${${name}_LIBRARIES}") endif(NOT TARGET ${ARGS_PKG_CONFIG_NAME}) endif(${name}_FOUND) else(${name}_PKG_CONFIG_FOUND) # No success with pkg-config, try via find_library on all lib_names set(${name}_FOUND "1") foreach(lib ${ARGS_LIB_NAMES}) find_library(${name}_${lib}_LIBRARY ${ARGS_LIB_NAMES} HINTS ${ARGS_LIB_DIR_HINTS}) mark_as_advanced(${name}_${lib}_LIBRARY) if(NOT ${name}_${lib}_LIBRARY) unset(${name}_FOUND) endif(NOT ${name}_${lib}_LIBRARY) endforeach(lib) foreach(inc ${ARGS_INCLUDE_NAMES}) find_path(${name}_${inc}_INCLUDE_PATH ${inc} HINTS ${ARGS_INCLUDE_DIR_HINTS} PATHS ${ARGS_INCLUDE_DIR_PATHS} PATH_SUFFIXES ${ARGS_INCLUDE_DIR_SUFFIXES}) mark_as_advanced(${name}_${inc}_INCLUDE_PATH) if(NOT ${name}_${inc}_INCLUDE_PATH) unset(${name}_FOUND) endif(NOT ${name}_${inc}_INCLUDE_PATH) endforeach(inc) if(${name}_FOUND) set(${name}_LIBRARIES "") set(${name}_INCLUDE_DIRS "") foreach(lib ${ARGS_LIB_NAMES}) list(APPEND ${name}_LIBRARIES ${${name}_${lib}_LIBRARY}) endforeach(lib) foreach(inc ${ARGS_INCLUDE_NAMES}) list(APPEND ${name}_INCLUDE_DIRS ${${name}_${inc}_INCLUDE_PATH}) endforeach(inc) list(GET ${name}_LIBRARIES "0" ${name}_LIBRARY) foreach(dep ${ARGS_DEPENDS}) find_package(${dep} ${${dep}_GLOBAL_VERSION} QUIET) if(${dep}_FOUND) list(APPEND ${name}_INCLUDE_DIRS ${${dep}_INCLUDE_DIRS}) list(APPEND ${name}_LIBRARIES ${${dep}_LIBRARIES}) else(${dep}_FOUND) unset(${name}_FOUND) endif(${dep}_FOUND) endforeach(dep) set(${name}_FOUND ${${name}_FOUND} PARENT_SCOPE) set(${name}_INCLUDE_DIRS ${${name}_INCLUDE_DIRS} PARENT_SCOPE) set(${name}_LIBRARIES ${${name}_LIBRARIES} PARENT_SCOPE) set(${name}_LIBRARY ${${name}_LIBRARY} PARENT_SCOPE) unset(${name}_VERSION PARENT_SCOPE) if(NOT TARGET ${ARGS_PKG_CONFIG_NAME}) add_library(${ARGS_PKG_CONFIG_NAME} INTERFACE IMPORTED) set_property(TARGET ${ARGS_PKG_CONFIG_NAME} PROPERTY INTERFACE_INCLUDE_DIRECTORIES "${${name}_INCLUDE_DIRS}") set_property(TARGET ${ARGS_PKG_CONFIG_NAME} PROPERTY INTERFACE_LINK_LIBRARIES "${${name}_LIBRARIES}") endif(NOT TARGET ${ARGS_PKG_CONFIG_NAME}) endif(${name}_FOUND) endif(${name}_PKG_CONFIG_FOUND) endfunction()