anchor.diff:                make check
                 make install
               '';
  +            inherit kickstartROMFile baseDiskImage useUAE;
             };
           }));
     };
  
positive.code:       (pkgs.lib.optionalAttrs (buildForAmiga)
          (let
            amigaosenv = import amigaosenvPath {
              inherit (pkgs) stdenv uae procps;
              lndir = pkgs.xorg.lndir;
            };
          in
          {
  
negative.code: , buildForAmiga ? false
  , buildForWindows ? false
  , amigaosenvPath ? <amigaosenv>
  , kickstartROMFile ? null
  , baseDiskImage ? null
  , useUAE ? true
  , libamivideo ? {outPath = ./.; rev = 1234;}
  , officialRelease ? false
  }:
  