OPcache: auto address mapping fallback desired?

Hi!

I've noticed that the win32 model of OPcache's shared memory may map it
to an automatic address determinded by the OS.  I wonder whether this is
actually desired, and if so, why we try to map to hard-coded addresses
in the first place.  If the auto adress mapping is not desired, we
should apply something like this patch:
<https://gist.github.com/cmb69/80e2ecc2d46f5255a315a268fcdd6f94>.

-- 
Christoph M. Becker