anchor.diff:  { stdenv
   , fetchFromGitHub
   , gettext
  +, lib
   
   , acl
   , gpm
  
positive.code: }:
  
  let
    inherit (stdenv.lib)
      optionalString;
  
    version = "8.1.0788";
  in
  stdenv.mkDerivation rec {
    name = "vim-${version}";
  
negative.code:     CONFIGURATION
    '';
  
    meta = with lib; {
      description = "The most popular clone of the VI editor";
      homepage = http://www.vim.org;
      license = licenses.vim;
  