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From: "Hannu E K Nevalainen" <garbage_collector AT telia DOT com>
To: "Cygwin Mailing List" <cygwin AT cygwin DOT com>
Subject: RE: linking 3rd party DLLs to my code.
Date: Sat, 22 Nov 2003 15:07:37 +0100
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> From: Brian Dessent
> Sent: Saturday, November 22, 2003 2:39 PM

> Suresh Venkatasubramanian wrote:
>
> > However I am able to link it. putting cg.dll in /usr/local/lib (say) and
> > compiling with
> >
> > gcc -mno-cygwin <files> -L/usr/local/lib -lcg
        ===========

> >
> > compiles with no complaints.
> >
> > However, cygcheck complains, saying that it cannot find the dll.
> >
> > When I place the dll physically in the dir that I am running
> from however,
> > the code runs fine. (soft linking doesn't work; the dll has to be
> > physically placed there).
> >
> > What might be the problem with what I am doing ? I suspect that
> I am doing
> > something wrong to begin with and the fact that I can even link
> the DLL is
> > an accident, rather than the other way around. Any help would be greatly
> > appreciated.
>
> Unless I'm really missing something, isn't this just a path issue?
> AFAIK, every DLL that your program links against must be either in the
> path or in the same directory as the .exe (unless the program
> specifically looks for it with dlopen() or whatever.)
>
> If you add /usr/local/lib to your path, or move your dll into a
             ==============
> directory already in the path does that cause it to work as you expect?
> I'm not sure why a symlink in the current directory doesn't work but I
> suspect it might be that it's Windows that's actually doing the loading
> of the exe and its dlls, and Windows does not treat shortcuts as
> symlinks.

 He is compiling with -mno-cygwin, I'd guess that this has some impact here.
i.e. cygwin1.dll isn't used -> POSIX paths not available.


/Hannu E K Nevalainen, B.Sc. EE - 59+16.37'N, 17+12.60'E

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