$NetBSD: patch-ca,v 1.1 2007/10/10 13:13:47 rillig Exp $

--- include/ptlib/pprocess.h.orig	2004-06-30 12:17:04.000000000 +0000
+++ include/ptlib/pprocess.h	2007-10-10 13:00:10.000000000 +0000
@@ -338,6 +338,9 @@ class PTimerList : PInternalTimerList //
   friend class PTimer;
 };
 
+// only for Unix
+extern void PXSignalHandler(int);
+class PHouseKeepingThread;
 
 ///////////////////////////////////////////////////////////////////////////////
 // PProcess