···3333 add_subdirectory(steamvr_drv)
3434endif()
35353636-if(XRT_FEATURE_SERVICE AND XRT_HAVE_SDL2 AND XRT_HAVE_VULKAN)
3636+if(XRT_FEATURE_SERVICE
3737+ AND XRT_HAVE_SDL2
3838+ AND XRT_HAVE_VULKAN
3939+ )
3740 add_subdirectory(sdl_test)
3841endif()