* frame.h (window_system_available) [!HAVE_WINDOW_SYSTEM]: Always false.

* frame.c (window_system_available) [HAVE_WINDOW_SYSTEM]: Now here.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/frame.h b/src/frame.h
index a962e91ce2d..44b113e3416 100644
--- a/src/frame.h
+++ b/src/frame.h
@@ -997,8 +997,10 @@ extern struct frame *make_minibuffer_frame (void);
 extern struct frame *make_frame_without_minibuffer (Lisp_Object,
                                                     struct kboard *,
                                                     Lisp_Object);
-#endif /* HAVE_WINDOW_SYSTEM */
 extern bool window_system_available (struct frame *);
+#else /* not HAVE_WINDOW_SYSTEM */
+#define window_system_available(f) ((void) (f), false)
+#endif /* HAVE_WINDOW_SYSTEM */
 extern void check_window_system (struct frame *);
 extern void frame_make_pointer_invisible (struct frame *);
 extern void frame_make_pointer_visible (struct frame *);