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-rw-r--r--cmake/PkgConfigWithFallbackOnConfigScript.cmake101
1 files changed, 101 insertions, 0 deletions
diff --git a/cmake/PkgConfigWithFallbackOnConfigScript.cmake b/cmake/PkgConfigWithFallbackOnConfigScript.cmake
new file mode 100644
index 00000000..563e4ab3
--- /dev/null
+++ b/cmake/PkgConfigWithFallbackOnConfigScript.cmake
@@ -0,0 +1,101 @@
+include(CMakeParseArguments)
+
+function(find_pkg_config_with_fallback_on_config_script name)
+ cmake_parse_arguments(ARGS "" "PKG_CONFIG_NAME" "CONFIG_SCRIPT_NAME" ${ARGN})
+ set(${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(${name}_${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(${name}_PKG_CONFIG_FOUND)
+ # No success with pkg-config, try via custom a *-config script
+ find_program(${name}_CONFIG_EXECUTABLE NAMES ${ARGS_CONFIG_SCRIPT_NAME}-config)
+ mark_as_advanced(${name}_CONFIG_EXECUTABLE)
+ find_program(${name}_SH_EXECUTABLE NAMES sh)
+ mark_as_advanced(${name}_SH_EXECUTABLE)
+
+ if(${name}_CONFIG_EXECUTABLE)
+ macro(config_script_fail errcode)
+ if(${errcode})
+ message(FATAL_ERROR "Error invoking ${ARGS_CONFIG_SCRIPT_NAME}-config: ${errcode}")
+ endif(${errcode})
+ endmacro(config_script_fail)
+ file(TO_NATIVE_PATH "${${name}_CONFIG_EXECUTABLE}" ${name}_CONFIG_EXECUTABLE)
+ file(TO_NATIVE_PATH "${${name}_SH_EXECUTABLE}" ${name}_SH_EXECUTABLE)
+
+ execute_process(COMMAND "${${name}_SH_EXECUTABLE}" "${${name}_CONFIG_EXECUTABLE}" --version
+ OUTPUT_VARIABLE ${name}_VERSION
+ RESULT_VARIABLE ERRCODE
+ OUTPUT_STRIP_TRAILING_WHITESPACE)
+ config_script_fail(${ERRCODE})
+
+ execute_process(COMMAND "${${name}_SH_EXECUTABLE}" "${${name}_CONFIG_EXECUTABLE}" --api-version
+ OUTPUT_VARIABLE ${name}_API_VERSION
+ RESULT_VARIABLE ERRCODE
+ OUTPUT_STRIP_TRAILING_WHITESPACE)
+ config_script_fail(${ERRCODE})
+
+ execute_process(COMMAND "${${name}_SH_EXECUTABLE}" "${${name}_CONFIG_EXECUTABLE}" --cflags
+ OUTPUT_VARIABLE ${name}_CFLAGS
+ RESULT_VARIABLE ERRCODE
+ OUTPUT_STRIP_TRAILING_WHITESPACE)
+ config_script_fail(${ERRCODE})
+
+ execute_process(COMMAND "${${name}_SH_EXECUTABLE}" "${${name}_CONFIG_EXECUTABLE}" --libs
+ OUTPUT_VARIABLE ${name}_LDFLAGS
+ RESULT_VARIABLE ERRCODE
+ OUTPUT_STRIP_TRAILING_WHITESPACE)
+ config_script_fail(${ERRCODE})
+
+ string(TOLOWER ${name} "${name}_LOWER")
+ string(REGEX REPLACE "^(.* |)-l([^ ]*${${name}_LOWER}[^ ]*)( .*|)$" "\\2" ${name}_LIBRARY_NAME "${${name}_LDFLAGS}")
+ string(REGEX REPLACE "^(.* |)-L([^ ]*)( .*|)$" "\\2" ${name}_LIBRARY_DIRS "${${name}_LDFLAGS}")
+ find_library(${name}_LIBRARY ${${name}_LIBRARY_NAME} HINTS ${${name}_LIBRARY_DIRS})
+ mark_as_advanced(${name}_LIBRARY)
+ unset(${name}_LIBRARY_NAME)
+ unset(${name}_LIBRARY_DIRS)
+
+ if(NOT TARGET ${name}_LOWER)
+ add_library(${name}_LOWER INTERFACE IMPORTED)
+ set_property(TARGET ${name}_LOWER PROPERTY INTERFACE_LINK_LIBRARIES "${${name}_LDFLAGS}")
+ set_property(TARGET ${name}_LOWER PROPERTY INTERFACE_COMPILE_OPTIONS "${${name}_CFLAGS}")
+ endif(NOT TARGET ${name}_LOWER)
+ endif(${name}_CONFIG_EXECUTABLE)
+ endif(${name}_PKG_CONFIG_FOUND)
+endfunction()