...

make docon ghc -fglasgow-exts -fallow-overlapping-instances -fallow-undecidable-instances -fno-warn-overlapping-patterns -fwarn-unused-binds -fwarn-unused-matches -fwarn-unused-imports -syslib data -ddump-hi-diffs -package-name docon --make DExport ghc: input file doesn't exist: docon ghc: input file doesn't exist: DExport ghc: no such system library (-syslib): data ghc: unrecognised option: -package-name ghc: unrecognised option: --make

It looks like you're invoking the wrong version of GHC (perhaps the 4.04 version you mentioned earlier)? Cheers, Simon