Brandon is overstating the case. CMake is now the only supported build
method *on Windows* (excluding Cygwin). It works, as far as is known,
on Linux platforms, but is not yet the only supported method. Only Felix
can declare that event, and he has not.
For now, building via Automake/Autoconf is still supported. Of course,
the more Linux people learn to build with CMake, the closer the day
comes when Automake/Autoconf can be junked, which Felix has stated is
his intention.
(Sorry if I'm misrepresenting you, Felix, but I thought this should
be said.)