CMake target_link_libraries

CMake target_link_libraries Interface Dependencies

http://stackoverflow.com/questions/26037954/cmake-target-link-libraries-interface-dependencies

例子

target_link_libraries(${PROJECT_NAME} PRIVATE common my_json)

PRIVATE

If you are creating a shared library and your source cpp files #include the headers of another library (Say, QtNetwork for example), but your header files don’t include QtNetwork headers, then QtNetwork is a PRIVATE dependency.

PUBLIC

If your source files and your headers include the headers of another library, then it is a PUBLIC dependency.

INTERFACE

If your header files but not your source files include the headers of another library, then it is an INTERFACE dependency.

Other build properties of PUBLIC and INTERFACE dependencies are propagated to consuming libraries. http://www.cmake.org/cmake/help/v3.0/manual/cmake-buildsystem.7.html#transitive-usage-requirements