anchor.diff:  , pkgconfig, faad2, faac, a52dec, alsaLib, fftw, lame, libavc1394
   , libiec61883, libraw1394, libsndfile, libvorbis, libogg, libjpeg
   , libtiff, freetype, mjpegtools, x264, gettext, openexr
  -, libXext, libXxf86vm, libXv, libXi, libX11, xextproto, libtheora, libpng
  -, libdv, libuuid, file, nasm, perl }:
  +, libXext, libXxf86vm, libXv, libXi, libX11, libXft, xextproto, libtheora, libpng
  +, libdv, libuuid, file, nasm, perl
  +, fontconfig, intltool }:
   
   stdenv.mkDerivation {
     name = "cinelerra-git";
  
positive.code:       a52dec alsaLib   fftw lame libavc1394 libiec61883
        libraw1394 libsndfile libvorbis libogg libjpeg libtiff freetype
        mjpegtools x264 gettext openexr
        libXext libXxf86vm libXv libXi libX11 xextproto
        libtheora libpng libdv libuuid
        nasm
        perl
      ];
  
    meta = {
      description = "Video Editor";
  
negative.code: 
    src = fetchgit {
      url = "git://git.cinelerra-cv.org/j6t/cinelerra.git";
      # 2.3
      #rev = "58ef118e63bf2fac8c99add372c584e93b008bae";
      #sha256 = "1wx8c9rvh4y7fgg39lb02cy3sanms8a4fayr70jbhcb4rp691lph";
      # master 22 nov 2016
      #rev = "dbc22e0f35a9e8c274b06d4075b51dc9bace34aa";
      #sha256 = "0c76j98ws1x2s5hzcdlykxm2bi7987d9nanka428xj62id0grla5";
  
      # j6t/cinelerra.git
      rev = "454be60e201c18c1fc3f1f253a6d2184fcfc94c4";
      sha256 = "1n4kshqhgnr7aivsi8dgx48phyd2nzvv4szbc82mndklvs9jfb7r";
    };
  
    # touch config.rpath: work around bug in automake 1.10 ?
  