Yes, evil things are afoot.

sizing VSMW clusters.

Fixes	#2535

I don't think GCC is a valid compiler for sensible code.

to be ignored in VSCAPI and do so there.

t_prev from the request we are cleaning up is not the most recent
relevant time stamp, in particular for H2

Since the last_lru tracks epoch time, it needs the double precision
floating point type to accurately track the time.

Fixes: #2527