Add missing secp256k1

Author: andreabedini

flake.nix

@@ -47,9 +47,8 @@
                 plutus-ledger.doHaddock = false;
                 plutus-use-cases.doHaddock = false;
 
-                # See https://github.com/input-output-hk/iohk-nix/pull/488
-                cardano-crypto-praos.components.library.pkgconfig = lib.mkForce [ [ pkgs.libsodium-vrf ] ];
-                cardano-crypto-class.components.library.pkgconfig = lib.mkForce [ [ pkgs.libsodium-vrf ] ];
+                cardano-crypto-praos.components.library.pkgconfig = lib.mkForce [ [ pkgs.libsodium-vrf pkgs.secp256k1 ] ];
+                cardano-crypto-class.components.library.pkgconfig = lib.mkForce [ [ pkgs.libsodium-vrf pkgs.secp256k1 ] ];
               };
             }
           ];