supporting TX_EXE

Hello,
I'm working on a fix for bugzilla 94270 -- adding support for
namespaces.

I see a lot of #ifdef / #ifndef TX_EXE in the transformiix code. I'm
wondering whether I need to write the code to work with the assumption
that TX_EXE is defined, or isn't defined, or both.
Peter VdB's patch at https://bugzilla.mozilla.org/attachment.cgi?id=149205
seems to be written for the case where TX_EXE is not defined.

Based on http://developer.mozilla.org/en/docs/Building_TransforMiiX_standalone,
I get the impression that TX_EXE indicates a standalone build?

Looking at http://www.nabble.com/checkout---build-TransforMiiX-(standalone)-t1818776.html,
it sounds like the standalone build is not really supported anymore.
(There doesn't seem to be a reply to that message.)

So... can I assume TX_EXE will not be defined? Seems like a fair bit
more work if I have to code for both possibilities. (Especially
research... and I'm brand-new to Tx.)

Thanks,
Lars