find_package(Qt5Core QUIET)

if (TARGET Qt5::qmake)
  get_target_property(QMAKE_EXECUTABLE Qt5::qmake LOCATION)
else()
  set(QMAKE_EXECUTABLE "qmake-qt5" CACHE)
endif()

function(QUERY_QMAKE RESULT VAR)
    exec_program(${QMAKE_EXECUTABLE} ARGS "-query ${VAR}" RETURN_VALUE return_code OUTPUT_VARIABLE output )
    if(NOT return_code)
        file(TO_CMAKE_PATH "${output}" output)
        set(${RESULT} ${output} PARENT_SCOPE)
    endif()
endfunction(QUERY_QMAKE)