Extract using
<citerefentry vendor="ports"><refentrytitle>7z
</refentrytitle><manvolnum>1
</manvolnum></citerefentry> instead of
<citerefentry><refentrytitle>bsdtar
</refentrytitle><manvolnum>1
</manvolnum></citerefentry> and sets
<literal>EXTRACT_SUFX=.7z
</literal>. The
<literal>p7zip
</literal> option forces a dependency on the
<command>7z
</command> from
<package role="port">archivers/p7zip
</package> if the one from the base system is not able to extract the files.
<varname>EXTRACT_SUFX
</varname> is not changed if the
<literal>partial
</literal> option is used, this can be used if the main distribution file does not have a
<filename>.7z
</filename> extension.