patch applied (cabal): look in odir for source and .hs files, not buildDir lbi

Mon Sep 17 07:50:30 PDT 2007 Duncan Coutts * look in odir for source and .hs files, not buildDir lbi odir = buildDir lbi for the lib case, which is why it worked most of the time in testing but in the exe case it's a different dir. M ./Distribution/Simple/GHC.hs -2 +2