install/50328: Can't build userland under 7.0

[darcy%NetBSD.org@localhost]

>Number:         50328
>Category:       install
>Synopsis:       Can't build userland under 7.0
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    install-manager
>State:          open
>Class:          support
>Submitter-Id:   net
>Arrival-Date:   Sun Oct 11 01:50:00 +0000 2015
>Originator:     D'Arcy Cain
>Release:        NetBSD-7-0
>Organization:
Vybe Networks Inc.
>Environment:
NetBSD gollum.vex.net 7.0 NetBSD 7.0 (VEX) #0: Fri Oct  9 08:04:36 EDT 2015  door%gollum.vex.net@localhost:/usr/obj/usr/src/sys/arch/amd64/compile/VEX amd64
>Description:
I was able to build and run the kernel but when I tried to build userland  with the command "./build.sh -M/usr/obj distribution" I saw this at the tail end of the build.

includes ===> external/mit/xorg/include/renderproto
includes ===> external/mit/xorg/include/dri2proto
includes ===> external/mit/xorg/include/dri3proto
nbmake[6]: don't know how to make dri3proto.h. Stop

nbmake[6]: stopped in /usr/src/external/mit/xorg/include/dri3proto

*** Failed target:  includes-dri3proto
*** Failed command: _makedirtarget() { dir="$1"; shift; target="$1"; shift; case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .) this="external/mit/xorg/include/"; real="/usr/src/external/mit/xorg/include" ;; *) this="external/mit/xorg/include/${dir}/"; real="/usr/src/external/mit/xorg/include/${dir}" ;; esac; show=${this:-.}; echo "${target} ===> ${show%/}${1:+ (with: $@)}"; cd "${real}" && /usr/obj/tools/bin/nbmake _THISDIR_="${this}" "$@" ${target}; }; _makedirtarget dri3proto includes
*** Error code 2

Stop.
nbmake[5]: stopped in /usr/src/external/mit/xorg/include


Here is my config file:

# $Id: VEX.config 9246 2015-05-23 09:32:06Z darcy $
# General config for 64 bit kernels on Vex.Net

include "arch/amd64/conf/GENERIC"

#ident          "INSTALL-$Revision: 9246 $"

maxusers 4096

options SEMMNI=20000
options SEMMNS=5000
options SEMUME=200
options SEMMNU=500
options SHMMAXPGS=16384

#pseudo-device   npf                     # NPF packet filter
pseudo-device   pf                      # PF packet filter
pseudo-device   pflog                   # PF log if
options ALTQ # stop those annoying pf warnings

>How-To-Repeat:
Not sure.  I don't believe that it was released without testing so I don't understand why it doesn't work for me.
>Fix: