[3.2/3.3/HEAD] shared libobjc not built

[Nicola Pero]

> > I suppose what we'd really want then is to fix building the libobjc
> > shipped with GCC as a DLL on MinGW.  :-)
> >
> > I don't have the time to work on this.
> 
>    Yes, I'd definitely like this -- assuming ObjC as a shared library 
> works in GCC now, I can maybe scrounge up some time to get it working 
> on MinGW.

libobjc as a shared library does work in GCC, I think it works at least on
GNU/linux, *bsd and Sun solaris.

If you can get some time to get it working on MinGW, that would be great
:-)

At an innocent thought, it looks like it shouldn't be very difficult,
since I suppose there should be plenty of packages built using autoconf
and libtool which compile libraries as DLL on MinGW, and if you get in
trouble, you can just peek what other packages are doing :-)

But maybe I'm missing something basic, as I have no real experience on
Win32.