Since FreeBSD 8.4 and FreeBSD 9.1 make(1) do support :tu and :tl as a
replacement for :U and :L (which has been marked as deprecated)
bmake which is the default on FreeBSD 10+ only support by default
:tu/:tl a hack has been added at the time to support :U and :L to ease
migration. This hack is now not necessary anymore
Note that this makes the ports tree incompatible with make(1) from
FreeBSD 8.3 or earlier
With hat: portmgr
A new version of the Ada compiler is coming imminently. Not all ports
will immediately build with the gcc49-based compiler, so a few ports
will be directed to use the current compiler in this new location instead.
It will require a change in Uses/ada.mk (upcoming).
Some ports will require updates to use upcoming lang/gcc-aux version.
The last set of ports that will be converted is likely the gnatdroid
ports as these will require a lot of time running testsuites, which takes
some time wirelessly on the Android target.