modularize the IntelMac hack, should now work on all Macs with ghc6.5 darcs-hash:20060904010651-5007d-be984166d89cf7d8b8414dd43cc448083c3b0140.gz
add support for ghc6.5 and IntelMac darcs-hash:20060903074853-5007d-e899d2a2ece0f8d4cffd78bdec5e903ea9f295bc.gz