h97# uname -a

NetBSD h97 9.0 NetBSD 9.0 (LIBKVER) #0: Tue Jan 19 00:00:00 UTC 2038
   root@localhost:/sys/arch/amd64/compile/LIBKVER amd64

h97# cat  /bulklog/py310-expat-3.10.12nb1/configure.log
=> Bootstrap dependency digest>=20211023: found digest-20220214
WARNING: [license.mk] Every package should define a LICENSE.
=> Checksum BLAKE2s OK for Python-3.10.12.tar.xz
=> Checksum SHA512 OK for Python-3.10.12.tar.xz
===> Installing dependencies for py310-expat-3.10.12nb1
==========================================================================
The following variables will affect the build process of this package,
py310-expat-3.10.12nb1.  Their current value is shown below:

        * PYTHON_VERSION_DEFAULT = 310

Based on these variables, the following variables have been set:

        * PYPACKAGE = python310

You may want to abort the process now with CTRL-C and change the value
of variables in the first group before continuing.  Be sure to run
`/usr/bin/make clean' after the changes.
==========================================================================
=> Tool dependency mktools-[0-9]*: found mktools-20220614
=> Tool dependency cwrappers>=20150314: found cwrappers-20220403
=> Tool dependency checkperms>=1.1: found checkperms-1.12
=> Full dependency python310>=3.10.12: NOT found
=> Verifying /nonexistent for ../../lang/python310
make[1]: don't know how to make /nonexistent. Stop

make[1]: stopped in /usr/pkgsrc/lang/python310
*** Error code 2

Stop.
make: stopped in /usr/pkgsrc/textproc/py-expat

.ifdef BSD_PKG_MK       # begin pkgsrc settings

WRKOBJDIR=      /WRKOBJDIR
WRKOBJDIR=      /tmp/W
MAKE_JOBS=              8
PACKAGES=               /P/packages
PACKAGES=               /WRKOBJDIR/packages
SKIP_LICENSE_CHECK=     yes
FAILOVER_FETCH=yes
PKG_COMPRESSION=      xz
PKG_DEVELOPER=          yes


.if ${PKGPATH}=="pkgtools/pkg_install"
USE_CWRAPPERS=  no
.endif

PKG_DBDIR=/var/db/pkg
#KG_DBDIR=/usr/pkg/pkgdb

PKG_OPTIONS.firefox=pulseaudio
PKG_OPTIONS.ghostscript-agpl+=       disable-compile-inits
#KG_OPTIONS.ghostscript-gpl+= disable-compile-inits
PKG_OPTIONS.ghostscript+= disable-compile-inits

#UILD_TARGET+=  test

DEPENDS_TARGET=bin-install
BINPKG_SITES=/WRKOBJDIR/package:

.endif

corrected to
BINPKG_SITES=/WRKOBJDIR/package

then still getting
[14/107] Failed to build    py310-expat-3.10.12nb1

corrected to
BINPKG_SITES=/WRKOBJDIR/packages