patch applied (packages/Cabal): Change flags passed to hsc2hs

[Duncan Coutts]

Mon Jul  3 17:19:26 PDT 2006  Duncan Coutts <duncan.coutts at worc.ox.ac.uk>
  * Change flags passed to hsc2hs
  The extra-libraries must be passed as -L-l${lib} or linking the C prog
  that hsc2hs generates may fail if any symbols are referenced.
  Also can't use cppOptions function since hsc2hs doesn't support -U.
  Need to do -U flags in ccOptions seperately.

    M ./Distribution/PreProcess.hs -1 +6