diff -r 794a5c91c479 -r c96169444d88 ui/motif/toolkit.c
--- a/ui/motif/toolkit.c	Sun Apr 06 13:21:37 2014 +0200
+++ b/ui/motif/toolkit.c	Thu Apr 10 11:37:41 2014 +0200
@@ -80,6 +80,10 @@
     appclose_udata = udata;
 }
 
+void ui_openfilefunc(ui_callback f, void *userdata) {
+    // OS X only
+}
+
 void ui_main() {
     XtAppMainLoop(app);
     if(appclose_fnc) {