include(FetchContent) FetchContent_Declare(FugueSchema URL https://github.com/fugue-re/fugue-db-schema/archive/master.zip ) if(NOT fugueschema_POPULATED) FetchContent_Populate(FugueSchema) set(fugueschema_SOURCE_DIR ${fugueschema_SOURCE_DIR} PARENT_SCOPE) endif() FetchContent_Declare(FlatBuffers URL https://github.com/google/flatbuffers/archive/v2.0.0.zip ) FetchContent_MakeAvailable(FlatBuffers)