Index: lisp-kernel/gc.h
===================================================================
--- lisp-kernel/gc.h	(revision 15471)
+++ lisp-kernel/gc.h	(working copy)
@@ -122,6 +122,7 @@
 #endif
 
 #ifdef DARWIN
+#include <mach/vm_statistics.h>
 #include <mach/task_info.h>
 typedef struct task_events_info paging_info;
 #else