Mail Archives: cygwin/2009/11/03/05:01:11
On Nov 2 20:05, Eric Blake wrote:
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> According to Corinna Vinschen on 11/2/2009 9:48 AM:
> > Weird question, right?
> >
> > Here's the problem.
> >
> > Assume you have a file "foo.so" on Linux. If you call
> >
> > dlopen ("./foo.so", RTLD_LAZY);
> >
> > it succeeds, but
> >
> > dlopen ("./foo", RTLD_LAZY);
> >
> > fails because the dlopen function never adds any suffixes like .so
> > automatically.
>
> And POSIX says "If file contains a <slash> character, the file argument is
> used as the pathname for the file. Otherwise, file is used in an
> implementation-defined manner to yield a pathname." So I think we are
> better off NOT adding an implicit .dll.
>
> > While we tend to change the implementation to be more Linux-like,
> > there could be some tools out there which erroneously depend on the
> > Windows-like behaviour of Cygwin's dlopen().
>
> My only worry is whether libtool depends on this behavior. But a quick
> look at the source code (although not a definitive one) shows that libtool
> is already adding a trailing dot on its own, in order to bypass window's
> automatic .dll appending. So if anything, I'm guessing that not adding an
> implicit suffix is actually what libtool would prefer.
Maybe Chuck can make this definitive?
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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