anchor.diff:      sed -i Makefile.{in,am} \
         -i configure{,.ac} \
         -i prepare_sources.sh.in \
  -      -e 's/26104-b00/26104-d00/g'
  +      -e 's/26104-b00/26104-e00/g'
     '';
   
     configureFlags = [
  
positive.code: { stdenv
  , fetchurl
  , unzip
  }:
  
  
negative.code:   name = "amrnb-11.0.0.0";
  
    # http://www.3gpp.org/DynaReport/26104.htm
    # NOTE: When updating amrnb-3gpp, update every instance of 26104-e00 to the
    #       updated file name.
    amrnb_3gpp = fetchurl {
      # Rel-14
      url = "http://www.3gpp.org/ftp/Specs/archive/26_series/26.104/26104-e00.zip";
      multihash = "QmaQRi5VKMGgRTgxhjARAbNB5aTgKCLpskfCvg3QwEoGH9";
      sha256 = "5d0c70576cea76bf200c6412306a6152758391b1aa40e7e14271169bbafa9125";
    };
  
    src = fetchurl {
  