anchor.diff:        cp -v embeddedfiles/*.info* $out/share/info/
       '';
     });
  -  hledger-ui = (overrideCabal super.hledger-ui (drv: {
  +  hledger-ui = overrideCabal super.hledger-ui (drv: {
       postInstall = ''
         for i in $(seq 1 9); do
           for j in *.$i; do
  
positive.code:   # Tries to read a file it is not allowed to in the test suite
    load-env = dontCheck super.load-env;
  
    # hledger needs a newer megaparsec version than we have in LTS 12.x.
    hledger-lib = super.hledger-lib.overrideScope (self: super: {
      # cassava-megaparsec = self.cassava-megaparsec_2_0_0;
      # hspec-megaparsec = self.hspec-megaparsec_2_0_0;
      # megaparsec = self.megaparsec_7_0_4;
    });
  
    # Copy hledger man pages from data directory into the proper place. This code
    # should be moved into the cabal2nix generator.
    hledger = overrideCabal super.hledger (drv: {
  
negative.code:       mkdir -p $out/share/info
        cp -v *.info* $out/share/info/
      '';
    });
    hledger-web = overrideCabal super.hledger-web (drv: {
      postInstall = ''
  