=> Bootstrap dependency digest>=20010302: found digest-20190127
===> Skipping vulnerability checks.
WARNING: No /var/db/pkg/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/sbin/pkg_admin -K /var/db/pkg fetch-pkg-vulnerabilities'.
=> Checksum SHA1 OK for giflib-5.2.1.tar.gz
=> Checksum RMD160 OK for giflib-5.2.1.tar.gz
=> Checksum SHA512 OK for giflib-5.2.1.tar.gz
===> Installing dependencies for giflib-util-5.2.1
=> Tool dependency libtool-base>=2.4.2nb9: found libtool-base-2.4.6nb2
=> Tool dependency gmake>=3.81: found gmake-4.2.1nb1
=> Tool dependency checkperms>=1.1: found checkperms-1.12
=> Build dependency xmlto-[0-9]*: found xmlto-0.0.28nb2
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
=> Full dependency giflib>=5.2.1: found giflib-5.2.1nb1
===> Overriding tools for giflib-util-5.2.1
===> Extracting for giflib-util-5.2.1
===> Patching for giflib-util-5.2.1
=> Applying pkgsrc patches for giflib-util-5.2.1
=> Verifying /amd/pkgsrc/CHROOT/P/pkgsrc/graphics/giflib-util/../../graphics/giflib/patches/patch-Makefile
=> Applying pkgsrc patch /amd/pkgsrc/CHROOT/P/pkgsrc/graphics/giflib-util/../../graphics/giflib/patches/patch-Makefile
Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|$NetBSD: patch-Makefile,v 1.2 2020/01/11 13:33:31 schmonz Exp $
|
|- Inherit the PREFIX rather than hard-coding it.
|- Adjust location where manuals are installed.
|- Apply <https://sourceforge.net/p/giflib/bugs/_discuss/thread/4e811ad29b/>
|  to fix Darwin build
|
|--- Makefile.orig	2019-06-24 16:08:57.000000000 +0000
|+++ Makefile
--------------------------
Patching file Makefile using Plan A...
Hunk #1 succeeded at 14.
Hunk #2 succeeded at 37.
Hunk #3 succeeded at 63.
Hunk #4 succeeded at 112.
Hunk #5 succeeded at 123.
Hunk #6 succeeded at 139.
done
===> Creating toolchain wrappers for giflib-util-5.2.1
===> Configuring for giflib-util-5.2.1
=> Change Makefile for giflib-util split-off.
WARNING: [subst.mk:split] Ignoring non-existent file "./util/Makefile.in".
=> Checking for portability problems in extracted files
=> Modifying libtool scripts to use pkgsrc libtool
=> Modifying libtool scripts to use pkgsrc depcomp