I think I found the problem.
package ghc-7.8.3 requires transformers-0.3.0.0
package mtl-2.2.1 requires transformers-0.4.1.0
package exceptions-0.6.1 requires transformers-0.4.1.0
I wonder how is this ever supposed to work :(
On Sun, Jul 20, 2014 at 9:01 PM, Edward Z. Yang wrote:
> The last tim
I was trying to upgrade to ghc-7.8 the other day, and got this
compilation failure when building ghc-mtl-1.2.1.0 (see the end of the
message).
I'm using the haskell overlay on Gentoo Linux straight out of the box,
no local cabal installations of anything.
Now I was told that other people can comp
