Check in initial work on kpathsea CMake building - still a long way to go
Switch c-auto.in to the cmakedefine syntax - don't have any of the tests yet
If we can, it would be good to set up individually viable builds for individually viable components.  Modularize parts of the CMake logic that will need to be repeated for that to work.
Do some reshuffling, more work on kpathsea build