Blender Git Loki

Gooseberry: Attempt to fix compilation error on OSX

There's in fact a conflict bewteeb math.h's isfinite and STL's one
which wasn't an issue previously because stl was not really included
into kernel for until openvdb work.

This commit only works issue around, proper solution is still needed.

P.S. It's still a good idea to not include headers which are unused
by current configuration anyway.