Hi,
if I understood correctly, in the not too distant future _every_ package
will have a LICENSE line. I guess there will be no objections to add
missing licences like Apache 2.0 (as apache-license-2.0) to
pkgsrc/licenses/?
There are also versions 1.0 and 1.1 available at
http://www.apache.org/licenses/ but I do not know whether we need them.
Even www/apache uses the 2.0 licence.
ciao
Klaus