=> Bootstrap dependency digest>=20010302: found digest-20111104
===> Skipping vulnerability checks.
WARNING: No /home/asau/pkg/var/db/pkg/pkg-vulnerabilities file found.
WARNING: To fix run: `/home/asau/pkg/sbin/pkg_admin -K /home/asau/pkg/var/db/pkg fetch-pkg-vulnerabilities'.
checksum: No checksum recorded for python-algebraic-0.3.1.dev-20120112.zip
ERROR: Make sure the Makefile and checksum file (/usr/home/asau/pkgsrc/wip/py-algebraic/distinfo)
ERROR: are up to date.  If you want to override this check, type
ERROR: "/home/asau/pkg/bin/bmake NO_CHECKSUM=yes [other args]".
*** Error code 1

Stop.
bmake: stopped in /usr/home/asau/pkgsrc/wip/py-algebraic