=> Bootstrap dependency digest>=20010302: found digest-20121220
=> Bootstrap dependency fetch-[0-9]*: found fetch-1.8nb1
=> Checksum SHA1 OK for openvpn-2.3.0.tar.gz
=> Checksum RMD160 OK for openvpn-2.3.0.tar.gz
=> Checksum SHA1 OK for openvpn-acct-wtmpx-20130210.tgz
=> Checksum RMD160 OK for openvpn-acct-wtmpx-20130210.tgz
===> Installing dependencies for openvpn-acct-wtmpx-20130210
=> Tool dependency libtool-base>=2.2.6bnb3: found libtool-base-2.4.2nb2
=> Tool dependency nbpatch-[0-9]*: found nbpatch-20100124
=> Tool dependency checkperms>=1.1: found checkperms-1.11
===> Overriding tools for openvpn-acct-wtmpx-20130210
===> Extracting for openvpn-acct-wtmpx-20130210
===> Patching for openvpn-acct-wtmpx-20130210
=> Applying pkgsrc patches for openvpn-acct-wtmpx-20130210
=> Verifying /usr/pkgsrc/net/openvpn-acct-wtmpx/patches/patch-aa
=> Applying pkgsrc patch /usr/pkgsrc/net/openvpn-acct-wtmpx/patches/patch-aa
Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|$NetBSD: patch-aa,v 1.4 2013/03/26 23:31:49 joerg Exp $
|
|--- Makefile.orig	2009-11-07 05:12:24.000000000 +0100
|+++ Makefile	2013-02-09 18:22:49.000000000 +0100
--------------------------
Patching file Makefile using Plan A...
Hunk #1 succeeded at 1.
Hunk #2 succeeded at 22.
done
===> Creating toolchain wrappers for openvpn-acct-wtmpx-20130210
===> Configuring for openvpn-acct-wtmpx-20130210
=> Checking for portability problems in extracted files
=> Modifying libtool scripts to use pkgsrc libtool