message: UI-CPP: fixed bug with renamed CMake options.
diff: #include <omp.h>
  #endif
  -#ifdef UI_CXX_USE_QT
  +#ifdef SPIRIT_UI_CXX_USE_QT
  #include "MainWindow.hpp"
  #endif
  @@ -80,7 +80,7 @@ int main(int argc, char ** argv)
  Log_Send(state.get(), Log_Level_Info, Log_Sender_UI, ("Using OpenMP with n=" + std::to_string(nt) + " threads").c_str());
  #endif
  - #ifdef UI_CXX_USE_QT
  + #ifdef SPIRIT_UI_CXX_USE_QT
  //------------------------ User Interface ---------------------------------------
  // Initialise Application and MainWindow
  QApplication app(argc, argv);
  