[x265] cmake 3.5 error trying to compile on linux

[Zoff]

i am getting this error now when trying to compile on linux (commit: 1d117bed4)

CMake Error at CMakeLists.txt:20 (cmake_minimum_required):
   Compatibility with CMake < 3.5 has been removed from CMake.

   Update the VERSION argument <min> value.  Or, use the <min>...<max> syntax
   to tell CMake that the project requires at least <min> but has been updated
   to work with policies introduced by <max> or earlier.

   Or, add -DCMAKE_POLICY_VERSION_MINIMUM=3.5 to try configuring anyway.