anchor.diff:      sha256 = "0zi47asv1qmb09g321m02q684i3c90vci0mgkdh1mlmx2rbg1d1d";
     };
   
  -  postPatch = "sed 's,/bin/rm,rm,g' -i genMakefiles"
  -  + stdenv.lib.optionalString (stdenv ? glibc) ''
  -
  +  postPatch = ''
  +    sed 's,/bin/rm,rm,g' -i genMakefiles
  +    sed \
  +      -e 's/$(INCLUDES) -I. -O2 -DSOCKLEN_T/$(INCLUDES) -I. -O2 -I. -fPIC -DRTSPCLIENT_SYNCHRONOUS_INTERFACE=1 -DSOCKLEN_T/g' \
  +      -i config.linux
  +  '' + stdenv.lib.optionalString (stdenv ? glibc) ''
       substituteInPlace liveMedia/include/Locale.hh \
         --replace '<xlocale.h>' '<locale.h>'
     '';
   
     configurePhase = ''
  -    sed \
  -      -e 's/$(INCLUDES) -I. -O2 -DSOCKLEN_T/$(INCLUDES) -I. -O2 -I. -fPIC -DRTSPCLIENT_SYNCHRONOUS_INTERFACE=1 -DSOCKLEN_T/g' \
  -      -i config.linux
  -
  -    ./genMakefiles linux
  +    ./genMakefiles ${{
  +      x86_64-darwin = "macosx";
  +      i686-linux = "linux";
  +      x86_64-linux = "linux-64bit";
  +    }.${stdenv.system}}
     '';
   
     installPhase = ''
  
positive.code:     done
    '';
  
    meta = with stdenv.lib; {
      description = "Set of C++ libraries for multimedia streaming, using open standard protocols (RTP/RTCP, RTSP, SIP)";
      homepage = http://www.live555.com/liveMedia/;
      license = licenses.lgpl21Plus;
      platforms = platforms.linux;
    };
  }
  
negative.code: { stdenv, fetchurl, lib, darwin }:
  
  # Based on https://projects.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD
  let
  