Do not populate pure Xism x_sync to other ports.

* frame.h (x_sync): Move under HAVE_X_WINDOWS.
* frame.c (other_visible_frames) [HAVE_X_WINDOWS]: Use as such.
* nsfns.m, w32xfns.c (x_sync): Remove no-op.
* w32term.h (x_sync): Remove prototype.

1 files changed, 0 insertions, 1 deletions

diff --git a/src/w32term.h b/src/w32term.h
index 41c5c71832a..b4818f69aee 100644
--- a/src/w32term.h
+++ b/src/w32term.h
@@ -211,7 +211,6 @@ extern void x_set_window_size (struct frame *f, int change_grav,
                               int cols, int rows);
 extern int x_display_pixel_height (struct w32_display_info *);
 extern int x_display_pixel_width (struct w32_display_info *);
-extern void x_sync (struct frame *);
 extern Lisp_Object x_get_focus_frame (struct frame *);
 extern void x_set_mouse_position (struct frame *f, int h, int v);
 extern void x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y);