anchor.diff:    # https://github.com/techtangents/ablist/issues/1
     ABList = dontCheck super.ABList;
   
  -  # Depends on broken NewBinary package.
  -  ASN1 = markBroken super.ASN1;
  -
  -  # Depends on broken Hails package.
  -  hails-bin = markBroken super.hails-bin;
  -
  -  # Depends on broken frame package.
  -  frame-markdown = markBroken super.frame-markdown;
  -
  -  # Depends on broken lss package.
  -  snaplet-lss = markBroken super.snaplet-lss;
  -
  -  # depends on broken hbro package.
  -  hbro-contrib = markBroken super.hbro-contrib;
  +  # These packages have broken dependencies.
  +  ASN1 = dontDistribute super.ASN1;                             # NewBinary
  +  frame-markdown = dontDistribute super.frame-markdown;         # frame
  +  hails-bin = dontDistribute super.hails-bin;                   # Hails
  +  hbro-contrib = dontDistribute super.hbro-contrib;             # hbro
  +  snaplet-lss = dontDistribute super.snaplet-lss;               # lss
   
     # https://github.com/haskell/vector/issues/47
     vector = if pkgs.stdenv.isi686 then appendConfigureFlag super.vector "--ghc-options=-msse2" else super.vector;
  
positive.code:   wizards = doJailbreak super.wizards;
  
    # https://github.com/ekmett/trifecta/issues/41
    trifecta = overrideCabal super.trifecta (drv: {
      patches = [
      (pkgs.fetchpatch {
         url = "https://github.com/ekmett/trifecta/pull/40.patch";
         sha256 = "0qwz83fp0karf6164jykdwsrafq08l6zsdmcdm83xnkcxabgplxv";
      })];});
  
    # https://github.com/NixOS/cabal2nix/issues/136
    gtk = addBuildDepends super.gtk [pkgs.pkgconfig pkgs.gtk];
  
negative.code:   base_4_7_0_2 = markBroken super.base_4_7_0_2;
  
    # Obsolete: https://github.com/massysett/prednote/issues/1.
    prednote-test = markBrokenVersion "0.26.0.4" super.prednote-test;
  
    # Doesn't compile: <http://hydra.cryp.to/build/465891/nixlog/1/raw>.
    integer-gmp_0_5_1_0 = markBroken super.integer-gmp_0_5_1_0;
  