Fix missing definitions for some dependencies

packaging/appimage/3rdparty/CMakeLists.txt

@@ -95,15 +95,18 @@ add_subdirectory( ext_alsa )
 add_subdirectory( ext_fftw3 )
 add_subdirectory( ext_fftw3f )
 add_subdirectory( ext_sdl2 )
-add_subdirectory( ext_ladspa )
 add_subdirectory( ext_x264 )
 add_subdirectory( ext_x265 )
 add_subdirectory( ext_libvpx )
 add_subdirectory( ext_ffmpeg )
+add_subdirectory( ext_sox )
+add_subdirectory( ext_jack )
+add_subdirectory( ext_ladspa )
 add_subdirectory( ext_cairo )
 add_subdirectory( ext_pango )
 add_subdirectory( ext_gdkpixbuf )
 add_subdirectory( ext_gtk+ )
 add_subdirectory( ext_frei0r )
+add_subdirectory( ext_vidstab )
 add_subdirectory( ext_mlt )
 add_subdirectory( ext_kdenlive )