libSDL2_gfx-1_0-0
  provides "SDL2_gfx-<targettype> = <version>"
  obsoletes "SDL2_gfx-<targettype> <= <version>"
libSDL2_gfx-devel
  requires -libSDL2_gfx-<targettype>
  requires "libSDL2_gfx-1_0-0-<targettype> = <version>"