I’m trying to build libshout for Android using cmake.
I do this in my high level CMakeLists.txt:

FetchContent_Declare(
        ogg
        GIT_REPOSITORY https://github.com/xiph/ogg.git
        GIT_TAG v1.3.5
        FIND_PACKAGE_ARGS
)

FetchContent_Declare(
        vorbis
        GIT_REPOSITORY https://github.com/xiph/vorbis.git
        GIT_TAG v1.3.7
        FIND_PACKAGE_ARGS
)

FetchContent_MakeAvailable(ogg)
FetchContent_MakeAvailable(vorbis)

add_subdirectory(third_party/shout)

I get this error

CMake Error at third_party/shout/CMakeLists.txt:41 (target_link_libraries):
  Target "shout" links to:

    Vorbis::vorbis

The line to which the above corresponds are

find_package(Vorbis REQUIRED)
target_link_libraries(shout PRIVATE Vorbis::vorbis Vorbis::vorbisenc Vorbis::vorbisfile)

so it seems that find_package works fine but the targets can not get found for some reason.
I’m new to CMake, could you guys point me out to what I’m doing wrong here?