Re: darcs patch: add README to warn about autoreconf

Ian Lynagh wrote:

This is really up to Christopher as the regex-posix maintainer, but we should probably try to be consistent between Cabal packages here, i.e. this sort of thing ought to be in the same place in any Cabal darcs checkout.

I don't think README is the best name, as some Cabal packages will want to put README into the source tarball. Perhaps README.darcs?

I copied the text from identically named README files in other packages. If you do it differently here, they'll need to be changed as well. -- Chris Smith