=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Checksum SHA1 OK for libretro-bsnes-mercury-20180803-4e221df676ffc7b46d083cf2ae100131eabe5076.tar.gz
=> Checksum RMD160 OK for libretro-bsnes-mercury-20180803-4e221df676ffc7b46d083cf2ae100131eabe5076.tar.gz
=> Checksum SHA512 OK for libretro-bsnes-mercury-20180803-4e221df676ffc7b46d083cf2ae100131eabe5076.tar.gz
===> Installing dependencies for libretro-bsnes-mercury-accuracy-20180803
=> 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-bsnes-mercury-accuracy-20180803
===> Extracting for libretro-bsnes-mercury-accuracy-20180803
===> Patching for libretro-bsnes-mercury-accuracy-20180803
=> Applying pkgsrc patches for libretro-bsnes-mercury-accuracy-20180803
=> Verifying /opt/pkgsrc/emulators/libretro-bsnes-mercury-accuracy/../../emulators/libretro-bsnes-mercury/patches/patch-Makefile
=> Applying pkgsrc patch /opt/pkgsrc/emulators/libretro-bsnes-mercury-accuracy/../../emulators/libretro-bsnes-mercury/patches/patch-Makefile
Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|$NetBSD: patch-Makefile,v 1.1 2018/08/13 14:37:25 nia Exp $
|
|Honour CFLAGS/LDFLAGS.
|
|--- Makefile.orig	2018-08-03 19:45:52.000000000 +0000
|+++ Makefile
--------------------------
Patching file Makefile using Plan A...
Hunk #1 succeeded at 32.
Hunk #2 succeeded at 146.
done
===> Creating toolchain wrappers for libretro-bsnes-mercury-accuracy-20180803
===> Configuring for libretro-bsnes-mercury-accuracy-20180803
=> Checking for portability problems in extracted files