Re: Will using cygwin help with back-linking?

[Jani tiainen <redetin at luukku dot com>]

Jay West wrote:

> Larry wrote...
>
> > Did you see this?
> >
> > <http://www.cygwin.com/ml/cygwin/2000-10/msg00451.html>
>
> No I didn't, but thanks! Actually, no, it doesn't answer my question. It
> does ask the precursor to my question, which is how to create a dlopenable
> module. I'm well aware of how to do that on unix, using exactly the commands
> he listed (main executable with --export-dynamic, module with -fpic and
> ld -shareable -dynamic). He is generally asking how to do that with cygwin,
> but there's no discussion of exactly what with, and if, backlinking is
> supported on a cygwin-ized windows machine.
>
> I will gladly do the legwork of figuring out the specifics of how to do it
> on cygwin, but I was hoping someone could at least point me down the right
> path. Let me be more specific, I see two alternatives:

You don't have to, I did it already.. =)

> So I guess in the final analysis there are two specific questions: Does
> cygwin-based windows take care of backlinking, and if so with what
> tool/method, and  is it's method compatable with libtool in a transparent
> way on Unix vs. Cygwin/Windows?

Shortly no. Longer answer is yes it does.

I rember writing a few articles about this...

Basicaly thing goes so that you compile (but not link) needed files, 
generate needed .lib:s and then link whole thing.

Note that you can export symbols from .exe in same way.

Here is few pointers:

<http://mail.gnu.org/archive/html/libtool/2002-10/msg00145.html>

<http://sources.redhat.com/ml/cygwin/2003-12/msg01071.html>


And bad news is: libtool can't handle this (at least not to my knowledge).

Because this is strictly windoze specific, this is also a offtopic of 
this mailinglist..

--

Jani Tiainen


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