avoid deps for both X11 and Wayland
--- a/avidemux/qt4/ADM_qt/src/ADM_qtx.cpp
+++ b/avidemux/qt4/ADM_qt/src/ADM_qtx.cpp
@@ -24,21 +24,29 @@ QT_LINUX_WINDOW_ENGINE admDetectQtEngine()
     QString pname = currentQApplication()->platformName();
     ADM_info("Running on platform %s\n", pname.toLatin1().constData());
 #if QT_VERSION >= QT_VERSION_CHECK(6, 5, 0)
+#if defined USE_X11
     auto x11 = currentQApplication()->nativeInterface<QNativeInterface::QX11Application>();
     if (x11)
     {
         ADM_info("Running on X11\n");
         qtEngine = QT_X11_ENGINE;
     }
+#endif // USE_X11
+#if defined USE_WAYLAND
+#if defined USE_X11
     else
     {
+#endif // USE_X11
         auto wayland = currentQApplication()->nativeInterface<QNativeInterface::QWaylandApplication>();
         if (wayland)
         {
             ADM_info("Running on Wayland\n");
             qtEngine = QT_WAYLAND_ENGINE;
         }
+#if defined USE_X11
     }
+#endif // USE_X11
+#endif // USE_WAYLAND
 #else
     if (!strncmp(pname.toLatin1().constData(), "xcb", 3))
         qtEngine = QT_X11_ENGINE;
--- a/avidemux/qt4/ADM_userInterfaces/ADM_gui/T_preview.cpp
+++ b/avidemux/qt4/ADM_userInterfaces/ADM_gui/T_preview.cpp
@@ -265,6 +265,7 @@ static void systemWindowInfo(GUI_WindowInfo *xinfo)
         ADM_info("Running on platform %s\n", currentQApplication()->platformName().toLatin1().data());
         switch (admDetectQtEngine())
         {
+#if defined USE_X11
         case QT_X11_ENGINE: {
             auto x11 = currentQApplication()->nativeInterface<QNativeInterface::QX11Application>();
             if (x11)
@@ -274,6 +275,8 @@ static void systemWindowInfo(GUI_WindowInfo *xinfo)
             }
         }
         break;
+#endif // USE_X11
+#if defined USE_WAYLAND
         case QT_WAYLAND_ENGINE:
 
         {
@@ -285,6 +288,7 @@ static void systemWindowInfo(GUI_WindowInfo *xinfo)
             }
         }
         break;
+#endif // USE_WAYLAND
         default:
             ADM_warning("Cannot get qt engine infos\n");
             myDisplay = NULL;