$OpenBSD: patch-src_smtp_h,v 1.2 2004/04/10 19:13:50 couderc Exp $
--- src/smtp.h.orig	2003-04-30 03:23:08.000000000 +0200
+++ src/smtp.h	2004-04-09 17:07:33.000000000 +0200
@@ -32,7 +32,9 @@ typedef struct _SMTPSession	SMTPSession;
 
 #define SMTP_SESSION(obj)	((SMTPSession *)obj)
 
-#define MSGBUFSIZE		8192
+#ifndef MSGBUFSIZE
+#  define MSGBUFSIZE		8192
+#endif
 
 typedef enum
 {
