This is horrible in that I had to disable all optimisations and mplayer is the kind of tool that really gets a boost out of them!
I hope they release another tarball soon.
brewkit.rb changes ENV destructively, so lets not do that everytime a formula
is required. Now it's possible for other tools to require a formula
description without worrying about side-effects.
Some day I hope to make it utilize the ffmpeg-mt and speed patches, as well as
providing optimization info in the notes, but I can’t currently get that to
work on Snow Leopard. Maybe later.