master 79cc87f3b7: Fix build on PGTK

[Po Lu]

branch: master
commit 79cc87f3b7a90376b16c8e45bb94eccdab4458e9
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Fix build on PGTK
    
    * src/gtkutil.c (xg_mark_data):
    * src/gtkutil.h (xg_filter_key): Ifdef out definitions on PGTK.
---
 src/gtkutil.c | 2 ++
 src/gtkutil.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/src/gtkutil.c b/src/gtkutil.c
index 4c516a4479..f236227514 100644
--- a/src/gtkutil.c
+++ b/src/gtkutil.c
@@ -2956,6 +2956,7 @@ xg_mark_data (void)
         }
     }
 
+#ifndef HAVE_PGTK
   if (xg_pending_quit_event.kind != NO_EVENT)
     {
       eassert (xg_pending_quit_event.kind == ASCII_KEYSTROKE_EVENT);
@@ -2963,6 +2964,7 @@ xg_mark_data (void)
       mark_object (xg_pending_quit_event.frame_or_window);
       mark_object (xg_pending_quit_event.arg);
     }
+#endif
 }
 
 /* Callback called when a menu item is destroyed.  Used to free data.
diff --git a/src/gtkutil.h b/src/gtkutil.h
index a1dd281f1d..b74244d84d 100644
--- a/src/gtkutil.h
+++ b/src/gtkutil.h
@@ -217,7 +217,9 @@ extern void xg_print_frames_dialog (Lisp_Object);
 extern bool xg_is_menu_window (Display *dpy, Window);
 #endif
 
+#ifndef HAVE_PGTK
 extern bool xg_filter_key (struct frame *frame, XEvent *xkey);
+#endif
 
 /* Mark all callback data that are Lisp_object:s during GC.  */
 extern void xg_mark_data (void);