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X-Authentication-Warning: slinky.cs.nyu.edu: pechtcha owned process doing -bs
Date: Tue, 9 Dec 2003 11:59:11 -0500 (EST)
From: Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To: cygwin AT cygwin DOT com
To: Jaroslaw Pawlak <jpawlak AT zeus DOT polsl DOT gliwice DOT pl>
cc: cygwin AT cygwin DOT com
Subject: Re: problem with dll and stdout
In-Reply-To: <20031209164450.A15928@zeus.polsl.gliwice.pl>
Message-ID: <Pine.GSO.4.56.0312091158321.3039@slinky.cs.nyu.edu>
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On Tue, 9 Dec 2003, Jaroslaw Pawlak wrote:

> On Tue, Dec 09, 2003 at 09:50:53AM -0500, Igor Pechtchanski wrote:
> > On Tue, 9 Dec 2003, Jaroslaw Pawlak wrote:
> >
> > > hello, i have this problem, when i load dll written in cygwin to my
> > > program(made in VC) all stdout is lost. I read on this list's archiwe that
> > > it happens, but i never saw an solution. What to do to avoid loosing
> > > stdout???
> > > thanks in advance.
> > > Jarek
> >
> > Don't mix Cygwin DLLs with VC++ ones.  VC++ DLLs use MSVCRT as their C
> > runtime, and Cygwin DLLs use cygwin1.dll.  This can create conflicts in
> > all sorts of areas, especially terminal access (output streams).  You can
> > create a non-Cygwin DLL by passing the '-mno-cygwin' option to gcc.
> >       Igor
> Hello! the problem is i'm not using all gcc but only ld and ld does not
> understands the -mno-cygwin switch. Also i have to mix this cygwin dll
> with my VC program so this isn't good solution for me. If you say that
> this option -mno-cygwin would help then please tell me something more
> about
> gcc. I have changed ld becouse it had this 0 bit reloc bug, but when i
> tried to make my dll with gcc (i already got the *.obj so i used gcc olny
> for its -mno-cygwin switch) then i run into 0 bit reloc again. How to
> recompile the gcc alone? becouse binutils after compilation didn't left
> any gcc.exe.  What to do ???
> Again, thanks for an answer!
> Jarek

When given the .o files, gcc will call ld with appropriate flags and
libraries.  -mno-cygwin changes the libraries that are passed to ld.
	Igor
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