cross build failure on FreeBSD/i386 9.1

[FURUSAWA Kazumi <kazumi%mse.biglobe.ne.jp@localhost>]

Hello,

Cross building NetBSD/alpha on FreeBSD/i386 9.1, I got the following error:

nbpax: unknown group `ftp'
nbpax: failed at line 4960 of the specification

The detailed build log messages are as follows.

I suspect that FreeBSD has gid 14 as ftp, but NetBSD expects gid 14 as named.

Is there any solutions or workarounds?
--
FURUSAWA Kazumi <kazumi%mse.biglobe.ne.jp@localhost>

#    create  base.tgz
cd /usr/local/cvsup/NetBSD/src/distrib/sets &&  
DESTDIR=/usr/local/obj-NetBSD/destdir.alpha  MACHINE=alpha  MACHINE_ARCH=alpha  
AWK=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbawk  
CKSUM=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbcksum  
DB=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbdb  
HOST_SH=/bin/sh  
MAKE=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbmake  
MKTEMP=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbmktemp  
MTREE=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbmtree  
PAX=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbpax  
COMPRESS_PROGRAM=gzip  
PKG_CREATE=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbpkg_create
  SED=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbsed  
TSORT=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbtsort\ -q  
/bin/sh ./maketars -d /usr/local/obj-NetBSD/destdir.alpha     -N 
/usr/local/cvsup/NetBSD/src/etc -t 
/usr/local/obj-NetBSD/releasedir/alpha/binary/sets base  || { rm -f 
/usr/local/obj-NetBSD/releasedir/alpha/binary/sets/base.tgz; false; }
Creating base.tgz
nbpax: unknown group `ftp'
nbpax: failed at line 4960 of the specification

*** Failed target:  do-base
*** Failed command: cd /usr/local/cvsup/NetBSD/src/distrib/sets && 
DESTDIR=/usr/local/obj-NetBSD/destdir.alpha MACHINE=alpha MACHINE_ARCH=alpha 
AWK=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbawk 
CKSUM=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbcksum 
DB=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbdb 
HOST_SH=/bin/sh 
MAKE=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbmake 
MKTEMP=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbmktemp 
MTREE=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbmtree 
PAX=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbpax 
COMPRESS_PROGRAM=gzip 
PKG_CREATE=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbpkg_create
 SED=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbsed 
TSORT=/usr/local/obj-NetBSD/tooldir.FreeBSD-9.1-STABLE-i386/bin/nbtsort\ -q 
/bin/sh ./maketars -d /usr/local/obj-NetBSD/destdir.alpha -N 
/usr/local/cvsup/NetBSD/src/etc -t 
/usr/local/obj-NetBSD/releasedir/alpha/binary/sets base || { rm -f 
/usr/local/obj-NetBSD/releasedir/alpha/binary/sets/base.tgz; false; }
*** Error code 1

Stop.
nbmake: stopped in /usr/local/cvsup/NetBSD/src/distrib/sets