Revision 396266

Update CMake to 3.1.1.

Release notes for the 3.3 series:
http://www.cmake.org/cmake/help/v3.3/release/3.3.html

This update took longer than expected because of a behavior change in CMake:
now calls to find_library(), find_path() etc will take the $PATH environment
variable into consideration, which in practice means that it will prefer
libraries in base instead of those in ports when both versions are available.
r395972 is an example of the groundwork that had to be done before landing this
patch.

- deskutils/owncloudclient: When OpenSSL from ports is to be used, make sure to
  pass ${LOCALBASE} as $CMAKE_PREFIX_PATH, otherwise it will use the version in
  base (see above) and fail on 9.x.
- math/cgal: Import upstream patch to fix the configuration process with CMake
  3.3.x.

PR:		202516