- Rebuild for new libSDL_gfx, need by mjpegtools-gui
- Fix FTBFS for errors "format not a string literal and no format arguments" because
FESCO decided Enable "-Werror=format-security" by default
https://fedorahosted.org/fesco/ticket/1185
- Bring and add two patches from Gentoo: mjpegtools-2.1.0-pic.patch and mjpegtools-2.1.0-sdl-cflags.patch