Hi all; I'm working on modernizing our large complex CMake environment. It builds a number of different binaries from an even larger number of static libraries, and these libraries depend on each other as well, in that they need to include headers and, sometimes, -D options etc.
I've used straightforward target_link_libraries() to declare the relationship between these libraries; for example: add_library(foo STATIC ...) target_include_directories(foo PUBLIC ...) target_compile_definitions(foo PUBLIC ...) target_compile_options(foo PUBLIC ...) add_library(bar STATIC ...) target_link_libraries(bar PUBLIC foo) add_executable(one ...) target_link_libraries(one PRIVATE bar) This works, in that everything builds properly but it has a side-effect we want to avoid. Because the source tree is large many developers have a habit of testing compilation of subsets of the code using something like: make -jX bar and expect it to just build the static library bar. Because it's a static library you don't need to actually build "foo" until link time. But we do need all the include directories, compile definitions, and compile options to be inherited from "foo" into "bar". However with the above formulation, building "bar" also forces the compilation of "foo", which we don't need or want. I've played around with the different values of PUBLIC, PRIVATE, and INTERFACE but there doesn't seem to be a straightforward way to say, "take the interface values for includes, definitions, and options, but don't depend on the generated target". I can write a function to do this myself but this seems like the most common way someone would want to treat static libraries referencing other static libraries, so I wondered if I was missing something that would allow this in a simpler way. Thanks! -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: https://cmake.org/mailman/listinfo/cmake
