=> Bootstrap dependency digest>=20010302: found digest-20190127
ERROR: This package is not available for these platforms: NetBSD-*-aarch64.
ERROR: This package has set PKG_SKIP_REASON:
ERROR: gcc9-9.2.0nb1 is not available for NetBSD-9.0-aarch64
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/lang/gcc9