How to handle PREFIX/share/joomla/tmp, PREFIX/share/joomla/cache and
PREFIX/share/joomla/administrator/cache? Most likely these should be
somewhere in /var (e.g. /var/joomla).

DESTDIR support

Many security issues in available components, check http://secunia.com
and/or other sources before using any part of joomla.  pkgsrc-security

Advisories for Joomla! itself:
CVE-2015-7857, CVE-2015-7858, CVE-2015-7859, CVE-2015-7899, CVE-2015-7297 
CVE-2015-8769
