mp3 update

[Juan Lang]

> If the code can be copied into wine itself, it seems to reason that we
> could statically link that same code ;-).
>
> http://www.mpg123.org/ - it's LGPL 2.1.

Oh yes, I assumed so.  I was talking about statically linking vs.
dlopen in general, and why avoiding dlopen where practical is a good
thing.  It's not always practical even when the license does agree,
for example for mshtml:  importing the Mozilla source tree is just too
much effort.

I also assume that, in the specific case of mpg123, there's some
technical reason we need to modify the source, and Aric was asking the
best way to do that.  Naturally this precludes statically linking and
dlopen.
--Juan