anchor.diff:  #
   #  SDL_gfx = callPackage ../development/libraries/SDL_gfx { };
   #
  -#  SDL_image = callPackage ../development/libraries/SDL_image { };
  +  SDL_image = callPackage ../development/libraries/SDL_image { };
   #
   #  SDL_mixer = callPackage ../development/libraries/SDL_mixer { };
   #
  
positive.code: #
  #  libdbusmenu_qt = callPackage ../development/libraries/libdbusmenu-qt { };
  #
  #  libdc1394 = callPackage ../development/libraries/libdc1394 { };
  #
    libdiscid = callPackage ../development/libraries/libdiscid { };
  #
  #  libdivsufsort = callPackage ../development/libraries/libdivsufsort { };
  
negative.code: libtheora = callPackage ../development/libraries/libtheora { };
  #
  libtiff = callPackage ../development/libraries/libtiff { };
  
    libtiger = callPackage ../development/libraries/libtiger { };
  #
  #  libtommath = callPackage ../development/libraries/libtommath { };
  #
  