archivers/pax fails to install during pkg add

[Mark Kirby <demonicjerseycow%gmail.com@localhost>]

Hi,

When i build archivers/pax on pkgsrc 2019q3 it fails to install with the following error

=> Automatic manual page handling
=> Generating post-install file lists
=> Checking file-check results for pax-20080110nb4
=> Creating binary package /mnt/Octane/pkgsrc-2019q3/archivers/pax/work/.packages/pax-20080110nb4.tgz
===> Building binary package for pax-20080110nb4
=> Creating binary package /mnt/Octane/pkgsrc-2019q3/packages/All/pax-20080110nb4.tgz
===> Installing binary package of pax-20080110nb4
pkg_add: Failed to write bin/nbpax for pax-20080110nb4: Could not open bin/nbcpio
pkg_add: Couldn't remove /usr/pkg/bin/nbpax
pkg_add: Couldn't remove /usr/pkg/bin/nbtar
pkg_add: Couldn't remove /usr/pkg/man/cat1/nbcpio.0
pkg_add: Couldn't remove /usr/pkg/man/cat1/nbtar.0
pkg_add: Couldn't remove /usr/pkg/man/cat1/nbpax.0
pkg_add: Couldn't remove /usr/pkg/man/man1/nbcpio.1
pkg_add: Couldn't remove /usr/pkg/man/man1/nbpax.1
pkg_add: Couldn't remove /usr/pkg/man/man1/nbtar.1
pkg_add: 1 package addition failed
*** Error code 1

Stop.
bmake[4]: stopped in /mnt/Octane/pkgsrc-2019q3/archivers/pax

This is on IRIX 6.5.30 with gcc 9.2 and a clean pkgsrc install.

Pax installs fine under pkgsrc 2019q2

Thanks

Mark