requested to merge jdavidberger/kwsys:kwsyspe_use_select_customization into master
Some systems / tools don't play nicely with how select is used here.
The way I ran across this was running threadsanitizer on an otherwise non related topic (debugger) for cmake. As far as I can tell, threadsanitizer will lock up on most systems that go through the select code path.
With this modification, and the additional compile flag of -DKWSYSPE_USE_SELECT=0, the lockup no longer happens.