initialized globals

[Frank Ch. Eigler]

Hi -

> The next steps I see for this:
> * Allow global constants -- no need for read locks, and enables
> optimizations like value propagation.

Technically, these are independent things, but yes: bug #2341.

> * Allow importing macro values as global constants -- avoid errors
> in "transcribing".

That unfortunately depends on the kernel being compiled with
not just -g but -g2.

- FChE