anchor.diff:    # });
     libnix = dontCheck super.libnix;
   
  -  # 2020-06-23: NOTE: > 0.33 => rm 464.patch: https://github.com/jaor/xmobar/issues/466
     # dontCheck: The test suite tries to mess with ALSA, which doesn't work in the build sandbox.
  -  xmobar = appendPatch (dontCheck super.xmobar) (pkgs.fetchpatch {
  -    url = "https://github.com/jaor/xmobar/pull/464.patch";
  -    sha256 = "0y1dd878yzy1cx0cjj0ijd3dmywr7jdmk68vxdjimxzblrdw1al6";
  -  });
  +  xmobar = dontCheck super.xmobar;
   
     # https://github.com/mgajda/json-autotype/issues/25
     json-autotype = dontCheck super.json-autotype;
  
positive.code:   # https://github.com/kazu-yamamoto/dns/issues/150
    dns = dontCheck super.dns;
  
    # Support recent versions of fast-logger.
    spacecookie = doJailbreak super.spacecookie;
  
    # apply patches from https://github.com/snapframework/snap-server/pull/126
    # manually until they are accepted upstream
    snap-server = overrideCabal super.snap-server (drv: {
  
negative.code: 
    # https://github.com/haskell-servant/servant-ekg/issues/15
    servant-ekg = doJailbreak super.servant-ekg;
  
    # the test suite has an overly tight restriction on doctest
    # See https://github.com/ekmett/perhaps/pull/5
  