fix of segfault on startup at SplashScreen::SetText

src/slic3r/GUI/GUI_App.cpp

@@ -825,7 +825,9 @@ bool GUI_App::on_init_inner()
         // create splash screen with updated bmp
         scrn = new SplashScreen(bmp.IsOk() ? bmp : create_scaled_bitmap("prusa_slicer_logo", nullptr, 400), 
                                 wxSPLASH_CENTRE_ON_SCREEN | wxSPLASH_TIMEOUT, 4000, splashscreen_pos);
+#ifndef __linux__
         wxYield();
+#endif
         scrn->SetText(_L("Loading configuration..."));
     }