Re: improve support for building DLLs on cygwin and mingw

[Bruno Haible]

Ralf Wildenhues wrote:
> > > There is dangerous ambiguity.  In the past this kind of ambiguity
> > > cause most of the dllimport-related ICE's in GCC.
> > 
> > I assume that GCC has enough maintainers to fix ICEs inside GCC.
> 
> But it's not Libtool's job to push GCC, Libtool tries to encode what
> works in practice.

The proposed method has been tested in GNU gettext 0.15, which uses quite
a few variables marked dllimport, on both Cygwin and mingw, and neither I
nor Charles Wilson have seen a gcc ICE in the process. So, it appears
that _now_ it works.

Bruno