pjonsson/parser-helper — pull request #2 by sideeffffect (2014-10-12 00:45:30+00:00)
Title: Relax restriction for depndency base, allow 4.7 or higher

the package builds fine even with base-4.7.0.1
I'm using Stackage http://www.stackage.org/stackage/2352db475394a21cff3eb2e1891e1dc4e862f39d