=> Bootstrap dependency digest>=20010302: found digest-20190127
ERROR: This package is not available for these platforms: *-*-alpha DragonFly-*-x86_64 NetBSD-*-aarch64 NetBSD-*-aarch64eb.
ERROR: This package has set PKG_SKIP_REASON:
ERROR: nhc98-1.22nb2 is not available for NetBSD-9.0-alpha
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/lang/nhc98