anchor.diff:    };
   
     openssl-sys = attrs: {
  -    nativeBuildInputs = [ pkgconfig ];
  +    nativeBuildInputs = [ pkg-config ];
       buildInputs = [ openssl ];
     };
   
     pq-sys = attr: {
  -    nativeBuildInputs = [ pkgconfig ];
  +    nativeBuildInputs = [ pkg-config ];
       buildInputs = [ postgresql ];
     };
   
  
positive.code: { stdenv, pkgconfig, curl, darwin, libiconv, libgit2, libssh2,
    openssl, sqlite, zlib, dbus, dbus-glib, gdk-pixbuf, cairo, python3,
    libsodium, postgresql, gmp, foundationdb, ... }:
  
  
negative.code:   };
  
    thrussh-libsodium = attrs: {
      nativeBuildInputs = [ pkg-config ];
      buildInputs = [ libsodium ];
    };
  
  