csecp256k1

commit e2f401be86c6ee8cbe9b5b06a1fa9cb19e897f55
parent 2b4a9d553de72a0e160d0ba672120969550b6ffb
Author: Jared Tobin <jared@jtobin.io>
Date:   Mon, 19 Feb 2024 16:27:25 +0400

Use haskellPackages.shellFor for devShell.

Diffstat:
M
secp256k1-sys/flake.nix
 | 
30
++++++++++++++++++++++++------

1 file changed, 24 insertions(+), 6 deletions(-)
diff --git a/secp256k1-sys/flake.nix b/secp256k1-sys/flake.nix
@@ -9,28 +9,46 @@
   outputs = { self, nixpkgs, flake-utils }:
     flake-utils.lib.eachDefaultSystem (system:
       let
-        pkgs  = nixpkgs.legacyPackages.${system};
+        lib = "secp256k1-sys";
+
+        config = {
+          packageOverrides = super: let self = super.pkgs; in rec {
+            haskell = super.haskell // {
+              packageOverrides = self: super: {
+                ${lib} = super.callCabal2nix lib ./. {};
+              };
+            };
+          };
+        };
+
+        pkgs  = import nixpkgs { inherit system; inherit config; };
         hpkgs = pkgs.haskell.packages.ghc964;
+
+        cc    = pkgs.stdenv.cc;
         ghc   = hpkgs.ghc;
         cabal = hpkgs.cabal-install;
-
-        lib = "secp256k1-sys";
       in
         {
           packages.${lib} = hpkgs.callCabal2nix lib self rec { };
 
           defaultPackage = self.packages.${system}.${lib};
 
-          devShells.default = pkgs.mkShell {
+          devShells.default = hpkgs.shellFor {
+            packages = p: [
+              p.${lib}
+            ];
+
             buildInputs = [
               cabal
+              cc
             ];
 
             inputsFrom = builtins.attrValues self.packages.${system};
 
             shellHook = ''
-              PS1="[nix] \w$ "
-              echo "entering shell, using"
+              PS1="[${lib}] \w$ "
+              echo "entering ${system} shell, using"
+              echo "cc:    $(${cc}/bin/cc --version)"
               echo "ghc:   $(${ghc}/bin/ghc --version)"
               echo "cabal: $(${cabal}/bin/cabal --version)"
             '';