anchor.diff:    };
   
   in rec {
  -  quaternion     = generic "0.0.9.3"     "1hr9zqf301rg583n9jv256vzj7y57d8qgayk7c723bfknf1s6hh3" "v" libqmatrixclient_0_4;
  -  quaternion-git = generic "0.0.9.4-rc3" "1fc3ya9fr3zw1cx7565s2rswzry98avslrryvdi0qa9yn0m3sw7p" ""  libqmatrixclient_0_5;
  +  quaternion     = generic "0.0.9.4"     "12mkwiqqbi4774kwl7gha72jyf0jf547acy6rw8ry249zl4lja54" "" libqmatrixclient_0_5;
  +  quaternion-git = quaternion;
   }
  
positive.code: { stdenv, lib, fetchFromGitHub, qtbase, qtquickcontrols, cmake
  , qttools, qtmultimedia
  , libqmatrixclient_0_4, libqmatrixclient_0_5 }:
  
  let
  
negative.code:       inherit sha256;
      };
  
      buildInputs = [ qtbase qtmultimedia qtquickcontrols qtkeychain qttools library ];
  
      nativeBuildInputs = [ cmake ];
  
  