help litecoin on mac. 2 5770s

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downloaded and installed bfgminer on my dads mac pro. so I'm past all that. have pool credentials all set up.

can't get bfg to identify his 2 5770s. on win i need open cl but doesn't seem to be a mac thing.

bfgminer loads up. syncs to pool. and starts hashing away at 5B/s so I'm assuming thats the cpu lol. hit M to manage devices none listed none found.

very limited support for gpu/mac stuff that i can find.

sidenote: ./configure --enable-scrypt? lol wtf. no idea what this means. i see everybody talking about it and nobody actually explains how to actually do this? so my scrypt function doesn't work for bfgminer either. any assistance would be greatly appreciated. thanks