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Mail Archives: cygwin/2005/02/01/10:57:23

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From: "Dave Korn" <dave DOT korn AT artimi DOT com>
To: <cygwin AT cygwin DOT com>
Subject: RE: Problems creating "-mno-cygwin" DLLs with libtool.
Date: Tue, 1 Feb 2005 15:56:17 -0000
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In-Reply-To: <030801c50873$a0dd3500$e6ec6f83@robinson.cam.ac.uk>
Message-ID: <NUTMEG3H9Fouml2dx88000003dc@NUTMEG.CAM.ARTIMI.COM>
X-OriginalArrivalTime: 01 Feb 2005 15:56:17.0381 (UTC) FILETIME=[90864950:01C50876]

> -----Original Message-----
> From: cygwin-owner On Behalf Of Max Bowsher
> Sent: 01 February 2005 15:35

> Vladius wrote:

> >    As U can see... it automatically passes -lcygwin flag to the
> > linker(g++). When cygcheck'ing resulting DLL it lists 
> cygwin DLL as one
> > of its dependencies.
> > I heard somewhere that cygwin is requierd for DLL 
> initialisation, is it true?

  I dunno, but I see lotsa references to something called
'_cygwin_noncygwin_dll_entry AT 12' which sounds fairly suggestive.... then again,
you can't always tell what a subroutine does from the name.

> > The interesting thing is that linking against resulting DLL with
> > so-called "-mno-cygwin -lcygwin" mix results in program startup
> > failure(no errors, it just hangs).
> >    Any ideas on how to create cygwin independent DLL with libtool?
> 
> Perhaps.
> But unless it *directly* relates to the special courtesy provision 
> of -mno-cygwin, it's a matter independent of cygwin, and thus 
> independent of this mailing list!

  If the cygwin port of libtool passes two conflicting flags (-mno-cygwin and
-lcygwin) to the underlying compiler, then it's a cygwin problem, surely?

> mingw-users might be a better forum.

  Surely this is either a cygwin problem or an autotools problem?  (libtool
counts as part of autotools, doesn't it?)  It's not mingw's fault we've passed
bad args to the compiler......

    cheers, 
      DaveK
-- 
Can't think of a witty .sigline today....


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