3D Math libs for Lua

[Brian Hook <hook_l@...>]

I've done the obligatory googling and haven't found anything, so I 
thought I'd ask here before hacking my own.  Is there a reasonably 
standard Lua 3D library for basic things like matrix and vector math 
(preferably written in Lua)?

Also, the binary loadable modules stuff I saw on the Wiki seems to be 
4.x based -- what's the story for binary loadables for 5.x?

Thanks,

Brian