use.desc states that matrox use flag enables Matrox MGA support to mplayer, but the same use-flag is described in use.local.desc as 'Enable output support on Matrox cards'. Not sure but IIRC there was other ebuilds too which used the 'matrox' use flag. HTH, Diego
use.local.desc doesn't have matrox in there anymore. I'm guessing this is fixed?