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@srhb
Created March 5, 2019 18:42
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let
haskellOverlay = self: super: {
haskellPackages = with self.haskell.lib; super.haskellPackages.extend (hself: hsuper: {
hello = overrideCabal hsuper.hello (drv: {
configureFlags = drv.configureFlags or [] ++ [ "-O2" ];
});
});
};
in
{ pkgs ? import <nixpkgs> { overlays = [ haskellOverlay ]; } }:
pkgs.haskellPackages.hello
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