csecp256k1

commit 4420e5c2603d067efbb3e9037e010271b14531ce
parent dce0fbb94dd6f775ffe0a9e94be366b9d5256e00
Author: Jared Tobin <jared@jtobin.io>
Date:   Tue, 27 Feb 2024 15:54:20 +0400

nix: better overrides

Instead of overriding nixpkgs entirely, just override the haskell
packages set for our compiler.

Diffstat:
M
flake.nix
 | 
16
++++++----------

1 file changed, 6 insertions(+), 10 deletions(-)
diff --git a/flake.nix b/flake.nix
@@ -11,19 +11,15 @@
       let
         lib = "ppad-csecp256k1";
 
-        config = {
-          packageOverrides = super: let self = super.pkgs; in rec {
-            haskell = super.haskell // {
-              packageOverrides = self: super: {
-                ${lib} = super.callCabal2nix lib ./. {};
-              };
-            };
+        pkgs = import nixpkgs { inherit system; };
+        hlib = pkgs.haskell.lib;
+
+        hpkgs = pkgs.haskell.packages.ghc964.override {
+          overrides = new: old: rec {
+            ${lib} = old.callCabal2nix lib ./. {};
           };
         };
 
-        pkgs  = import nixpkgs { inherit system; inherit config; };
-        hpkgs = pkgs.haskell.packages.ghc964;
-
         cc    = pkgs.stdenv.cc;
         ghc   = hpkgs.ghc;
         cabal = hpkgs.cabal-install;