Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Date: Tue, 1 Feb 2005 12:26:39 -0500 From: Christopher Faylor To: cygwin AT cygwin DOT com Subject: Re: Problems creating "-mno-cygwin" DLLs with libtool. Message-ID: <20050201172639.GH4911@trixie.casa.cgf.cx> Reply-To: cygwin AT cygwin DOT com References: <030801c50873$a0dd3500$e6ec6f83 AT robinson DOT cam DOT ac DOT uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i On Tue, Feb 01, 2005 at 03:56:17PM -0000, Dave Korn wrote: >> -----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? Has it been established that the cygwin version of libtool is *supposed* to handle mingw? I'd be rather surprised if that was a goal. OTOH, I never have understood why tools insist on including such things as "-lcygwin" or "-lc" on a linker command line. cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/