anchor.diff:  { stdenv, fetchFromGitHub, libpng, python3
  -, libGLU_combined, qtbase, ncurses
  +, libGLU_combined, qtbase, wrapQtAppsHook, ncurses
   , cmake, flex, lemon
   }:
   
   let
  -  gitRev    = "c0038e3ea82fec6119de364bcbc3370955ed46a2";
  +  gitRev    = "6dfe6822e0279a4cc2f1c60e85b42212627285fe";
     gitBranch = "develop";
     gitTag    = "0.9.3";
   in
     stdenv.mkDerivation {
       pname = "antimony";
  -    version = "2018-10-20";
  +    version = "2019-10-30";
   
       src = fetchFromGitHub {
         owner  = "mkeeter";
         repo   = "antimony";
         rev    = gitRev;
  -      sha256 = "01cjcjppbb0gvh6npcsaidzpfcfzrqhhi07z4v0jkfyi0fl125v4";
  +      sha256 = "07zlkwlk79czq8dy85b6n3ds3g36l8qy4ix849ady6ia3gm8981j";
       };
   
       patches = [ ./paths-fix.patch ];
  
positive.code: 
      buildInputs = [
        libpng python3 python3.pkgs.boost
        libGLU_combined qtbase ncurses
      ];
  
      nativeBuildInputs = [ cmake flex lemon ];
  
negative.code: 
      meta = with stdenv.lib; {
        description = "A computer-aided design (CAD) tool from a parallel universe";
        homepage    = https://github.com/mkeeter/antimony;
        license     = licenses.mit;
        maintainers = with maintainers; [ rnhmjoj ];
        platforms   = platforms.linux;
  