forked from GitHub/gf-core
An apparent bug in ghc-7.2.2 causes the type Value to be exported from PGF.Data. Workaround: restrict the imports from PGF.Data in GF.Command.Abstract and GF.Compile.GeneratePMCFG to avoid the clash with locally defined type Value. (ghc-7.0.4 and ghc-7.4.1 appear to be free from this bug.)