[Yhc] buildbot failure in slack_x86

[Neil Mitchell]

Hi

This error seems like it could be a real and repeating one:

An error ocurred running `ghc -M -optdep-f
-optdepsrc/compiler98/.Main.hs.dep -cpp
-DyhcVERSION=\"0.7.0-20070315025737\"
-i./src/compiler98:./src/libraries/general:./src/libraries/core:depends/cpphs:depends/filepath:./src/interactive
src/compiler98/Main.hs`:
>depends/cpphs/Language/Preprocessor/Cpphs/Tokenise.hs:235: unterminated comment
>
Dependencies will not be calculated.

The reason is that cpphs (deliberately!) uses */* as a combinator
which trips up GHC's -cpp flag. When doing the dependency there should
be no need to pass -cpp to cpphs. -cpp will need to be specified for
FilePath, however.

Thanks

Neil