Qt's CMake seems to ignore dependencies when generating APK targets

I'm working on a project where we have several CMake subprojects that follow this approximate chain of dependency :

• Library A has no dependencies to my code
• Library B depends on A
• An application project C depends on B

Building on Desktop is working : a top-level CMake project includes the three subprojects using CMake's add_subdirectory command. The CMake project of C calls qt_add_executable(...), and also target_link_libraries(... B).

When I try building for Android however, the binaries of the dependencies A and B are not copied to the libs/<android_arch>/ directory that is used to build the APK. The build step reports a success, but since the produced APK is missing these dependencies it fails at runtime.

I've found a hacky and unreliable workaround, but I feel like basic target_link_library(...) calls should be translated to APK inclusion of binaries when Qt's CMake rules generate the APK target. The fact that they apparently do not looks like a bug to me. Or am I missing something?