diff options
Diffstat (limited to 'cmake/PkgConfigWithFallback.cmake')
| -rw-r--r-- | cmake/PkgConfigWithFallback.cmake | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/cmake/PkgConfigWithFallback.cmake b/cmake/PkgConfigWithFallback.cmake new file mode 100644 index 00000000..988e4564 --- /dev/null +++ b/cmake/PkgConfigWithFallback.cmake @@ -0,0 +1,99 @@ +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 it's 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(LIB_NAME_${lib} ${lib} HINTS ${${name}_PKG_CONFIG_LIBRARY_DIRS}) + if(NOT LIB_NAME_${lib}) + unset(${name}_FOUND) + endif(NOT LIB_NAME_${lib}) + endforeach(lib) + if(${name}_FOUND) + set(${name}_LIBRARIES "") + foreach(lib ${${name}_PKG_CONFIG_LIBRARIES}) + list(APPEND ${name}_LIBRARIES ${LIB_NAME_${lib}}) + 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 ${ARGS_LIB_NAMES}) + find_library(LIB_NAME_${lib} ${ARGS_LIB_NAMES} HINTS ${ARGS_LIB_DIR_HINTS}) + + if(NOT LIB_NAME_${lib}) + unset(${name}_FOUND) + endif(NOT LIB_NAME_${lib}) + endforeach(lib) + + foreach(inc ${ARGS_INCLUDE_NAMES}) + find_path(INCLUDE_PATH_${inc} ${inc} HINTS ${ARGS_INCLUDE_DIR_HINTS} PATHS ${ARGS_INCLUDE_DIR_PATHS} PATH_SUFFIXES ${ARGS_INCLUDE_DIR_SUFFIXES}) + + if(NOT INCLUDE_PATH_${inc}) + unset(${name}_FOUND) + endif(NOT INCLUDE_PATH_${inc}) + endforeach(inc) + + if(${name}_FOUND) + set(${name}_LIBRARIES "") + set(${name}_INCLUDE_DIRS "") + foreach(lib ${ARGS_LIB_NAMES}) + list(APPEND ${name}_LIBRARIES ${LIB_NAME_${lib}}) + endforeach(lib) + foreach(inc ${ARGS_INCLUDE_NAMES}) + list(APPEND ${name}_INCLUDE_DIRS ${INCLUDE_PATH_${inc}}) + endforeach(inc) + list(GET ${name}_LIBRARIES "0" ${name}_LIBRARY) + + foreach(dep ${ARGS_DEPENDS}) + find_package(${dep} 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()
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