anchor.diff:  , qtsvg
   , qtxmlpatterns
   , qttools
  -, lib, stdenv
  +, lib
  +, stdenv
  +, installShellFiles
   }:
   
   mkDerivationWith stdenv.mkDerivation rec {
     pname = "qcad";
  -  version = "3.26.0.1";
  +  version = "3.26.1.0";
   
     src = fetchFromGitHub {
       owner = "qcad";
       repo = "qcad";
       rev = "v${version}";
  -    sha256 = "sha256-V+QlwM8BWmcarwZtqJfc+MYHOZgIH1W5R8m2EHhNJls=";
  +    sha256 = "sha256-OWAc7g8DiJR3z6dUF5D0Yo3wnRKd1Xe7D1eq15NRW5c=";
     };
   
     patches = [
  
positive.code:         src/3rdparty/qt-labs-qtscriptgenerator-5.14.0/qt-labs-qtscriptgenerator-5.14.0.pro \
          src/3rdparty/qt-labs-qtscriptgenerator-${qtbase.version}/qt-labs-qtscriptgenerator-${qtbase.version}.pro
      fi
   '';
  
    qmakeFlags = [
      "MUPARSER_DIR=${muparser}"
  
negative.code:     cp -r scripts $out/lib
      cp -r plugins $out/lib/plugins
      cp -r patterns $out/lib/patterns
      cp -r fonts $out/lib/fonts
      cp -r libraries $out/lib/libraries
      cp -r linetypes $out/lib/linetypes
      cp -r ts $out/lib/ts
  
      # workaround to fix the library browser:
      rm -r $out/lib/plugins/sqldrivers
      ln -s -t $out/lib/plugins ${qtbase}/${qtbase.qtPluginPrefix}/sqldrivers
  
      rm -r $out/lib/plugins/printsupport
      ln -s -t $out/lib/plugins ${qtbase}/${qtbase.qtPluginPrefix}/printsupport
  
      rm -r $out/lib/plugins/imageformats
      ln -s -t $out/lib/plugins ${qtbase}/${qtbase.qtPluginPrefix}/imageformats
  
      install -Dm644 scripts/qcad_icon.svg $out/share/icons/hicolor/scalable/apps/qcad.svg
  
      installManPage qcad.1
  
      runHook postInstall
    '';
  
    buildInputs = [
      boost
  