#TODO: add check that source doesn't contain any untracked files
if(CPACK_SOURCE_PACKAGE_FILE_NAME) #building source package
    get_filename_component(CMAKE_BINARY_DIR ${CPACK_OUTPUT_CONFIG_FILE} PATH)
    if(NOT EXISTS "${CMAKE_BINARY_DIR}/man/man1/ngmx.1")
        message(FATAL_ERROR 
            "To create a complete source package all man pages need to be generated."
            "The man pages are automatically built together with the binaries. "
            "Make sure to build all binaries (e.g. GMX_X11=on).")
    endif()
endif()