set(SOURCE
    ${SOURCE}
    "${CMAKE_CURRENT_SOURCE_DIR}/singlethread.cpp"
    "${CMAKE_CURRENT_SOURCE_DIR}/multithreading.cpp"
    PARENT_SCOPE
)
set(HEADERS
    ${HEADERS}
    "${CMAKE_CURRENT_SOURCE_DIR}/singlethread.h"
    "${CMAKE_CURRENT_SOURCE_DIR}/multithreading.h"
    PARENT_SCOPE
)
