Fix build --without-xdbe

* src/xterm.c (x_end_cr_clip, handle_one_xevent): Condition
double-buffering code on HAVE_XDBE.  (Bug#61667)

src/xterm.c

@@ -5830,8 +5830,10 @@ void
 x_end_cr_clip (struct frame *f)
 {
   cairo_restore (FRAME_CR_CONTEXT (f));
+#ifdef HAVE_XDBE
   if (FRAME_X_DOUBLE_BUFFERED_P (f))
     x_mark_frame_dirty (f);
+#endif
 }
 
 void
@@ -20900,8 +20902,10 @@ handle_one_xevent (struct x_display_info *dpyinfo,
 		  x_flush (WINDOW_XFRAME (XWINDOW (bar->window)));
 		}
 
+#ifdef HAVE_XDBE
 	      if (f && FRAME_X_DOUBLE_BUFFERED_P (f))
 		x_drop_xrender_surfaces (f);
+#endif
 
 	      goto OTHER;
 	    }