Ricardo Wurmus <rek...@elephly.net> writes: > Timothy Sample <samp...@ngyro.com> writes: > >> Ricardo Wurmus <rek...@elephly.net> writes: >> >>> I think that’s a misunderstanding. The cause for the error is earlier >>> when it complains that some packages depend on different versions of the >>> “transformers” package. “StateT” is a monad transformer. >> >> For what it’s worth, I fixed this error on my machine by adding >> “ghc-transformers” as an input to “ghc-transformers-compat”. (This also >> fixed “ghc-adjunctions”.) This suggests to me that what you wrote >> earlier accounts for the problem: >> >>> * many problems are caused by the fact that GHC includes a bunch of >>> packages that really shouldn’t be overridden by packages. Examples >>> are ghc-directory, ghc-binary, ghc-bytestring, etc. Since we still >>> have packages where these inputs are used, there can be conflicts down >>> the line, which are hard to fix. > > The solution might be to remove ghc-transformers from all packages that > currently have it as an input rather than add it wherever the > transformers is required. This seems to be only ghc-mtl. I’ve removed > it and am building ghc-mtl and ghc-resourcet now.
I’ve built ghc-resourcet successfully with this change. I’d be happy if those of you who reported build failures could please retry building ghc-resourcet with current master or core-updates (the fix to ghc-mtl is on both branches now). Thanks in advance! -- Ricardo GPG: BCA6 89B6 3655 3801 C3C6 2150 197A 5888 235F ACAC https://elephly.net
