We have a statistically significant number of enthusiasts interested in getting Kolab available for Ubuntu 16.04 (Xenial), but it ships with PHP 7 — and PHP 7 only, it appears.
We use Swig to generate PHP and Python and other bindings for the two C++ libraries libkolab and libkolabxml.
Swig appears to, not yet, support generating these bindings for PHP 7, however. The lovely people over at Ubuntu-building HQ must have considered this irrelevant, but it effectively renders Kolab or even just our Calendar and Tasks plugin to Roundcube unavailable for the new LTS release.
This is a kind request to the coders of this world capable of rendering an acceptable patch to submit upstream, …
Or a request to capable packagers to re-introduce a PHP 5 or even a PHP 6 stack to Ubuntu 16.04, …
Or an announcement that I’m going to have to drop Ubuntu completely until at last this blocker is lifted.
Jeroen van Meeuwen