anchor.diff:  { stdenv
   , fetchurl
   
  +, alsa-lib
   , flac
   , libogg
   , libvorbis
   }:
  +
  +let
  +  inherit (stdenv.lib)
  +    enFlag
  +    optionalString;
  +in
   
   stdenv.mkDerivation rec {
     name = "libsndfile-1.0.27";
  
positive.code:     homepage = http://www.mega-nerd.com/libsndfile/;
      license = licenses.lgpl2Plus;
      maintainers = with maintainers; [
        wkennington
      ];
      platforms = with platforms;
  
negative.code:   };
  
    buildInputs = [
      alsa-lib
      flac
      libogg
      libvorbis
    ];
  
    configureFlags = [
      "--disable-experimental"
      "--disable-werror"
      "--disable-stack-smash-protection"
      "--disable-gcc-pipe"
      #"--enable-cpu-clip"
      "--disable-sqlite"
      "--enable-alsa"
      "--enable-external-libs"
      "--disable-octave"
      "--disable-test-coverage"
      "--without-octave"
      "--without-mkoctfile"
      "--without-octave-config"
    ];
  
    passthru = {
  