af_packet plugin does not compile

Af_packet plugin does not compile with same dependencies as Bro. Bro compiles cleanly (2.5). Af_packet plugin states:

CMake Error at …RequireCXX11.cmake:31
C++11 headers cannot be used for compilation

This is from the bro 2.5 release from last year and not a github update.Af_packet plugin documentation has nothing to say about why this would occur.

Scrap this. I deleted the CMake directories and this compiled.