Non-static method view::load_views() should not be called statically with VIEWS
These errors, at least those coming from Views, does not really have a proper solution, because the versions of Views and Calendar that cause them, are no longer being updated.

Views 2 is officially not being updated anymore, and I doubt anything but serious security problems is going to change that. Calendar could potentially have the problem fixed, but this is also a module with a great deal of issues, and for an old version, I simply wouldn't expect these problems to be prioritized enough to get fixed.

Your basic options:


Upgrade to Views 3, and the corresponding Calendar version.
Disable E_STRICT error reporting.
Simply accept that the errors are there.


A more sophisticated and perhaps better solution would be to locate the relevant patches in the issue queues, and apply them in your drush make file.