Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

DTLS MTU bug.

Thank you\!
(note: not tested for now, a few nightly builds should give indications though)

(with introduction of 64-bit support alloca must be  declared and there
is no standard way of doing that, switching to __bultin_alloca is
considered appropriate because code explicitly targets gcc anyway).

engine ;-)

doesn't have padlocks.

make sure that BOTH instances of said code get the VMS modification.