anchor.diff:      platforms;
   in
   stdenv.mkDerivation rec {
  -  name = "speexdsp-2016-09-22";
  +  name = "speexdsp-2017-08-08";
   
     src = fetchFromGitHub {
  -    version = 2;
  +    version = 4;
       owner = "xiph";
       repo = "speexdsp";
       # Upstream has not tagged a release since 2014
  -    rev = "76c944d24ba07c7a19725f951acb1d481546e1e3";
  -    sha256 = "d7aea033cce23c911cfcd49a280864f21339df2d4edc76032a1a1ef39b834113";
  +    rev = "85e8ad5432eb9333f727e7b18c97995317eabf02";
  +    sha256 = "5bfd04cffc5c855abebb042e5882bda8cf9b38cf90eb580328c34c7e1ea4052c";
     };
   
     nativeBuildInputs = [
  
positive.code:     "--with-fft=gpl-fftw3"
    ];
  
    meta = with stdenv.lib; {
      description = "An audio compression format designed for speech";
      hompage = http://www.speex.org/;
      license = licenses.bsd3;
  
negative.code: , autoreconfHook
  , fetchFromGitHub
  , fetchTritonPatch
  , lib
  
  , fftw_single
  }:
  