> Did they rewrite it in all of the weird outdated programming languages?
"Re-built" means "recompiled", not "rewritten". And it were more like different dialects (for different compilers) of the same language rather than different languages.
> Or does it mean that since there is a rewrite in C, using it would > technically be the same as "the original source code"?
Yes, I guess "original source code" in this context means Olaf "olsen" Barthel's ANSI C port. I see now that this is probably what you meant with "rewritten code" in your previous posting.