$NetBSD$

Disable tests when building.

--- Makefile.orig	2012-12-26 16:21:23.000000000 +0000
+++ Makefile
@@ -1,6 +1,6 @@
 PACKAGE	= Mailer
 VERSION	= 0.1.6
-SUBDIRS	= data doc include po src src/plugins tests
+SUBDIRS	= data doc include po src src/plugins
 RM	?= rm -f
 LN	?= ln -f
 TAR	?= tar -czvf
