anchor.diff:    inherit (lib)
       optionalString;
   
  -  version = "8.1.0944";
  +  version = "8.1.1259";
   in
   stdenv.mkDerivation rec {
     name = "vim-${version}";
  
positive.code: 
    buildInputs = [
      acl
      gpm
      ncurses
    ];
  
negative.code:     owner = "vim";
      repo = "vim";
      rev = "v${version}";
      sha256 = "a7697f05ebe974debe74dd1e032520d79720c46d80a0e38c6bbe9bc3f13ac05b";
    };
  
    nativeBuildInputs = [
  