(mac_clear_area): Add extern.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/macterm.h b/src/macterm.h
index e7a5fc2450e..277fd2051c6 100644
--- a/src/macterm.h
+++ b/src/macterm.h
@@ -562,6 +562,8 @@ extern void XSetBackground P_ ((Display *, GC, unsigned long));
 extern void XSetWindowBackground P_ ((Display *, WindowPtr, unsigned long));
 extern void mac_draw_line_to_pixmap P_ ((Display *, Pixmap, GC, int, int,
                                          int, int));
+extern void mac_clear_area P_ ((struct frame *, int, int,
+                                unsigned int, unsigned int));
 extern void mac_unload_font P_ ((struct mac_display_info *, XFontStruct *));
 extern OSErr install_window_handler P_ ((WindowPtr));
 extern void remove_window_handler P_ ((WindowPtr));