=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Checksum SHA1 OK for libretro-picodrive-20200527-b8fb8f285317632f42ecbbd36cf4fe18ea9189f1.tar.gz
=> Checksum RMD160 OK for libretro-picodrive-20200527-b8fb8f285317632f42ecbbd36cf4fe18ea9189f1.tar.gz
=> Checksum SHA512 OK for libretro-picodrive-20200527-b8fb8f285317632f42ecbbd36cf4fe18ea9189f1.tar.gz
===> Installing dependencies for libretro-picodrive-20200527nb2
=> Tool dependency gmake>=3.81: found gmake-4.2.1nb1
=> Tool dependency nbpatch-[0-9]*: found nbpatch-20151107
=> Tool dependency checkperms>=1.1: found checkperms-1.12
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
===> Skipping vulnerability checks.
WARNING: No /opt/pkg/pkgdb/pkg-vulnerabilities file found.
WARNING: To fix run: `/opt/pkg/sbin/pkg_admin -K /opt/pkg/pkgdb fetch-pkg-vulnerabilities'.
===> Overriding tools for libretro-picodrive-20200527nb2
===> Extracting for libretro-picodrive-20200527nb2
===> Patching for libretro-picodrive-20200527nb2
=> Applying pkgsrc patches for libretro-picodrive-20200527nb2
=> Verifying /opt/pkgsrc/emulators/libretro-picodrive/patches/patch-Makefile
=> Applying pkgsrc patch /opt/pkgsrc/emulators/libretro-picodrive/patches/patch-Makefile
Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|$NetBSD: patch-Makefile,v 1.1 2020/06/02 14:51:03 nia Exp $
|
|Don't use bundled zlib.
|
|--- Makefile.orig	2020-05-27 19:43:14.000000000 +0000
|+++ Makefile
--------------------------
Patching file Makefile using Plan A...
Hunk #1 succeeded at 177.
done
===> Creating toolchain wrappers for libretro-picodrive-20200527nb2
===> Configuring for libretro-picodrive-20200527nb2
=> Checking for portability problems in extracted files