Require CMake 3.13+ to configure CMake itself
In particular, guarantee that policy CMP0077
has NEW
behavior.
This will be useful to hard-code options of third-party libraries
without polluting our own cache.
Take advantage of policy CMP0077
's NEW
behavior to hard-code settings,
defined by option()
calls in upstream libarchive, without adding
them to our cache.
Edited by Brad King