[Nix-dev] Haskell NG

Peter Simons simons at cryp.to
Thu Jan 8 19:03:45 CET 2015

Hi Russel,

 > So please keep an eye out for long evaluation times when using
 > deepOverride as you continue your work. :)

you were right. deepOverride is too slow to be feasible for anything but
trivial cases.

The haskell-ng package set still support deepOverride, but the
recommended way to accomplish deep overrides is overrideScope


which is, of course, exactly the solution you proposed in the
'haskellPackagesFixpoint' branch. Great job!


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