$NetBSD: patch-ac,v 1.1 2006/01/02 23:33:41 joerg Exp $

--- error_hnds.h.orig	2006-01-02 23:27:55.000000000 +0000
+++ error_hnds.h
@@ -54,7 +54,7 @@ extern void ehInstallErrorHandlers _ARGU
 /* install the signal handlers */
 extern void ehInstallSignalHandlers _ARGUMENTS((void));
 
-#if !defined(__GNU_LIBRARY__) && !defined(__NetBSD__) && !defined(__FreeBSD__)
+#if !defined(__GNU_LIBRARY__) && !defined(__NetBSD__) && !defined(__FreeBSD__) && !defined(__DragonFly__)
 extern int errno, sys_nerr;
 extern char *sys_errlist[];
 #endif