anchor.diff:  , libpng
   , libselinux
   , libsepol
  +, libspnav
   , libthai
   , libxkbcommon
   , pangomm
  
positive.code:     at-spi2-core
      cairo
      dbus
      freetype
      fontconfig
      glew
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "solvespace";
    version = "3.1";
  
    src = fetchFromGitHub {
      owner = pname;
      repo = pname;
      rev = "v${version}";
      hash = "sha256-sSDht8pBrOG1YpsWfC/CLTTWh2cI5pn2PXGH900Z0yA=";
      fetchSubmodules = true;
    };
  
  