+# Qt 5.11 removed the qt5_use_modules function, so we need to provide it until we can switch to a modern CMake version.
+# If present, the Qt-provided version will be used automatically instead.
+function(qt5_use_modules _target _link_type)
+ if (NOT TARGET ${_target})
+ message(FATAL_ERROR "The first argument to qt5_use_modules must be an existing target.")
+ endif()
+ if ("${_link_type}" STREQUAL "LINK_PUBLIC" OR "${_link_type}" STREQUAL "LINK_PRIVATE" )
+ set(_qt5_modules ${ARGN})
+ set(_qt5_link_type ${_link_type})
+ else()
+ set(_qt5_modules ${_link_type} ${ARGN})
+ endif()
+
+ if ("${_qt5_modules}" STREQUAL "")
+ message(FATAL_ERROR "qt5_use_modules requires at least one Qt module to use.")
+ endif()
+ foreach(_module ${_qt5_modules})
+ if (NOT Qt5${_module}_FOUND)
+ find_package(Qt5${_module} PATHS "${_Qt5_COMPONENT_PATH}" NO_DEFAULT_PATH)
+ if (NOT Qt5${_module}_FOUND)
+ message(FATAL_ERROR "Can not use \"${_module}\" module which has not yet been found.")
+ endif()
+ endif()
+ target_link_libraries(${_target} ${_qt5_link_type} ${Qt5${_module}_LIBRARIES})
+ set_property(TARGET ${_target} APPEND PROPERTY INCLUDE_DIRECTORIES ${Qt5${_module}_INCLUDE_DIRS})
+ set_property(TARGET ${_target} APPEND PROPERTY COMPILE_DEFINITIONS ${Qt5${_module}_COMPILE_DEFINITIONS})
+ if (Qt5_POSITION_INDEPENDENT_CODE
+ AND (CMAKE_VERSION VERSION_LESS 2.8.12
+ AND (NOT CMAKE_CXX_COMPILER_ID STREQUAL "GNU"
+ OR CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.0)))
+ set_property(TARGET ${_target} PROPERTY POSITION_INDEPENDENT_CODE ${Qt5_POSITION_INDEPENDENT_CODE})
+ endif()
+ endforeach()
+endfunction()
+