[Vortex] [PATCH] Make libvortex-1.1 compile under msvc

[Francis Brosnan Blazquez]

> Hello,

Hi Benoit,

> Here are a few patches that make msvc compile the library.
> It needs my previous axl patch to work properly.

Ok. Mostly applied. 

The chunk about vortex_log and vortex_log2 was not included. I don't
remember but under some obscure configurations the "..." declaration (or
something similiar) is not supported making not viable to disable vortex
log. The same happens to axl library (axl_log.h).

Cheers!

> Thanks,
-- 
Francis Brosnan Blazquez <francis at aspl.es>
Advanced Software Production Line, S.L.