check for X11_display when using SDL

SDL can be using another video driver
2018-07-20 12:06:45 +02:00
parent 146694d3c1
commit 6ec72f6b71
2 changed files with 12 additions and 0 deletions
--- a/src/readline.c
+++ b/src/readline.c
@@ -437,6 +437,12 @@ bye:
      GFX2_Log(GFX2_ERROR, "Failed to get X11 display and window\n");
      return NULL;
    }
+    if (X11_display == NULL)
+    {
+      char video_driver_name[32];
+      GFX2_Log(GFX2_WARNING, "X11 display is NULL. X11 is needed for Copy/Paste. SDL video driver is currently %s\n", SDL_VideoDriverName(video_driver_name, sizeof(video_driver_name)));
+      return NULL;
+    }
 #endif
    selection = XInternAtom(X11_display, "CLIPBOARD", False);
    selection_owner = XGetSelectionOwner(X11_display, selection);