是否可以将导入的库添加到 target_link_libraries 来处理包含目录? [英] Possible to add an imported library to target_link_libraries that takes care of include directories too?

问题描述

somehow I am struggling with finding out whether it is possible to define an imported library in CMake, specifying target properties (include_directories and library path) and hoping that CMake will append the include directories once I add that project to target_link_libraries in another project.

Let's say I have an imported library in a file called Module-Conf.cmake:

add_library(mymodule STATIC IMPORTED)
set_target_properties(mymodule PROPERTIES IMPORTED_LOCATION "${OUTPUT_DIR}/lib")
set_target_properties(mymodule PROPERTIES INCLUDE_DIRECTORIES "${OUTPUT_DIR}/include")

And in a project I add the dependency:

include(Module-Conf)
target_link_libraries(${PROJECT_NAME} mymodule)

Will CMake append the include_directories property to the include path? Right now I cannot see the path so it seems that I have to do it by myself by using get_target_property?

Question: Can I do some CMake magic to automatically append the include to the include directories of another project?

Thanks a lot. Martin

解决方案

The difference between the INCLUDE_DIRECTORIES property and the INTERFACE_INCLUDE_DIRECTORIES property is transitivity.

Set INTERFACE_INCLUDE_DIRECTORIES instead.

http://www.cmake.org/cmake/help/v3.0/manual/cmake-buildsystem.7.html#transitive-usage-requirements

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