ERROR: This package has set PKG_FAIL_REASON:
ERROR: zoo-2.10.1nb4 has an unacceptable license condition: 
ERROR:     zoo-license
ERROR: You can mark the license ``zoo-license'' as acceptable by adding
ERROR:     ACCEPTABLE_LICENSES+= zoo-license
ERROR: to /etc/mk.conf or by adding
ERROR:     ACCEPTABLE_LICENSES= zoo-license
ERROR: to /etc/pkg_install.conf.
ERROR: The following command will show you the license text:
ERROR:     /usr/bin/make show-license
*** Error code 1

Stop.
make: stopped in /shared/pkgsrc/archivers/zoo