I've tried the new ghc-7.8.1 and have had an issue with building pcre-light as one of dependencies for my project. I've made a patch which fixes this, but I can't reach maintainer by e-mail -- what can I do in this situation? Also, the second (unrelated) question would be: how can I find a package which depends on it in my project? I have found no way to dump a dependency tree in cabal.

Thanks in advance,
Nikolay.