Hi Mateusz, > Notably if I specify mtl = mtl_2_2_1; then it complains that it needs > transformers == 0.4 but there seems to be no clues in nixpkgs as to how > to achieve this. Currently mtl = 2.2.1 for HEAD but I know it should > work with 7.8.3
transformers is a core library in GHC 7.8.3. We cannot override that package, because it's shipped with the compiler and other core libraries are linked against that version. Best regards, Peter _______________________________________________ nix-dev mailing list [email protected] http://lists.science.uu.nl/mailman/listinfo/nix-dev
