Neil Mitchell wrote:
It's not linked in, so that explains why you were getting that error. Two options: something is failing to generate the object files for cpphs, or something is failing to see them as required for linking.
have a directory depends/cpphs in your repo, which corresponds to the cpphs program's source code.
Yep. It is there.
Can you check if there are any .o files in that directory tree, I would expect some under Language/Haskell/Cpphs or something similar. Also are there any .hi files inside that tree?
No .o or .hi files in depends/cpphs and I don't have a Cpphs under /usr/local/lib/ghc-6.4.2/imports/Language/Haskell
Hmm, so installing cpphs made the problem go away a bit? That is a bit weird. Do you have any recollection as to what the original problem was?
If I unregister cpphs from ghc, then run "scons" (after a "scons clean") I get the following error... ghc -i./src/compiler98 -idepends/cpphs -idepends/filepath -fwarn-missing-signatures -c src/compiler98/Front.lhs -o src/compiler98/Front.o src/compiler98/Front.lhs:33:1: Failed to load interface for `Language.Preprocessor.Unlit': Could not find module `Language.Preprocessor.Unlit': use -v to see a list of the files searched for scons: *** [src/compiler98/Front.o] Error 1 scons: building terminated because of errors.