anchor.diff:    ];
   
     preConfigure = ''
  -    cp -v $amrnb_3gpp 26104-e00.zip
  +    cp -v "$amrnb_3gpp" '${amrnb_3gpp_version}.zip'
     '';
   
     meta = with lib; {
  
positive.code:     sed -i Makefile.{in,am} \
        -i configure{,.ac} \
        -i prepare_sources.sh.in \
        -e 's/26104-b00/26104-e00/g'
    '';
  
    configureFlags = [
  
negative.code:   name = "amrnb-11.0.0.0";
  
    # http://www.3gpp.org/DynaReport/26104.htm
    amrnb_3gpp_version = "26104-g00";  # Rel-16
    amrnb_3gpp = fetchurl {
      url = "http://www.3gpp.org/ftp/Specs/archive/26_series/26.104/"
        + "${amrnb_3gpp_version}.zip";
      multihash = "Qma62vUUSoNXrBUS2dz158Ybgo6XgmcVG8krUNQvnEkD3o";
      sha256 = "97b164b9b9079e7979a4e14ae79ed9a0749b8cc3b778fa7ebacd6d5eadc5976f";
    };
  
    src = fetchurl {
  