=> Bootstrap dependency digest>=20211023: found digest-20220214
ERROR: This package is not available for these platforms: NetBSD-[0-5]*-*.
ERROR: This package has set PKG_SKIP_REASON:
ERROR: userspace-rcu-0.12.1 is not available for NetBSD-10.0-vax
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/devel/userspace-rcu