There is no problem overriding `mtl` with a newer version than the one GHC
provides assuming we also override all packages depending on mtl. I think
this is possible as long as the package using mtl doesn't depend on the GHC
api (ghc package), because we cannot override the GHC api package and it
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
On 09/08/2014 07:36 AM, Peter Simons wrote:
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
mtl choosing versions
Which is the target package you want to use/work on?
Marc Weber
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On 09/07/2014 10:57 AM, Mateusz Kowalczyk wrote:
On 09/07/2014 10:15 AM, Marc Weber wrote:
mtl choosing versions
Which is the target package you want to use/work on?
Marc Weber
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