$NetBSD: patch-ab,v 1.1.1.1 2003/04/27 00:42:58 rh Exp $

--- src/threads.h.orig	2003-01-25 23:04:31.000000000 +1000
+++ src/threads.h
@@ -21,6 +21,9 @@
 
 #ifndef __THREADS_H__
 #define __THREADS_H__
+
+#include <pthread.h>
+
 /* FIXME: mailbox_lock is really an internal libbalsa mutex. */
 extern pthread_mutex_t mailbox_lock;