patch applied (packages/regex-posix): CPP extension required for building haddock docs

[Duncan Coutts]

Tue Oct 23 05:49:53 PDT 2007  Duncan Coutts <duncan at haskell.org>
  * CPP extension required for building haddock docs
  Since one module uses -cpp hidden in a sneaky GHC_OPTIONS pragma.

    M ./regex-posix.cabal -1 +1