darcs patch (manually sent): initial support for building executables with UHC

Apologies for this not 'darcs send' generated format, but I cannot make darcs generate email on my machine which is accepted by the cabal-devel list. This is a patch for adding support for building executables with cabal for UHC. regards, - Atze - Atze Dijkstra, Department of Information and Computing Sciences. /|\ Utrecht University, PO Box 80089, 3508 TB Utrecht, Netherlands. / | \ Tel.: +31-30-2534118/1454 | WWW : http://www.cs.uu.nl/~atze . /--| \ Fax : +31-30-2513971 .... | Email: atze@cs.uu.nl ............ / |___\