anchor.diff:    # https://github.com/pxqr/base32-bytestring/issues/4
     base32-bytestring = dontCheck super.base32-bytestring;
   
  -  # https://github.com/goldfirere/singletons/issues/122
  -  singletons = dontCheck super.singletons;
  -
     # Djinn's last release was 2014, incompatible with Semigroup-Monoid Proposal
     # https://github.com/augustss/djinn/pull/8
     djinn = appendPatch super.djinn (pkgs.fetchpatch {
  
positive.code: 
    # The standard libraries are compiled separately.
    idris = generateOptparseApplicativeCompletion "idris" (dontCheck super.idris);
  
    # https://github.com/bos/math-functions/issues/25
    math-functions = dontCheck super.math-functions;
  
    # build servant docs from the repository
    servant =
  
negative.code:     sha256 = "13g462qmj8c7if797gnyvf8h0cddmm3xy0pjldw48w8f8sr4qsj0";
    });
  
    # Install icons, metadata and cli program.
    bustle = overrideCabal super.bustle (drv: {
      buildDepends = [ pkgs.libpcap ];
  