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Message-ID: <99B82AA9708ED0119B55006097125A00405B38@ifk63.mach.uni-karlsruhe.de>
From: Heribert Dahms <heribert_dahms AT icon-gmbh DOT de>
To: "'Earnie Boyd'" <earnie_boyd AT yahoo DOT com>,
        Frank Moehle
	 <Frank DOT Moehle AT Informatik DOT Uni-Oldenburg DOT DE>,
        cygwin AT sources DOT redhat DOT com
Subject: RE: cooperation of cygwin and NuTCracker ??
Date: Fri, 13 Oct 2000 21:32:07 +0200
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Hi Earnie and Frank,

please see my commenty embedded below.

Bye, Heribert (heribert_dahms AT icon-gmbh DOT de)

> -----Original Message-----
> From:	Earnie Boyd [SMTP:earnie_boyd AT yahoo DOT com]
> Sent:	Friday, October 13, 2000 14:03
> To:	Frank Moehle; cygwin AT sources DOT redhat DOT com
> Subject:	Re: cooperation of cygwin and NuTCracker ??
> 
> --- Frank Moehle <Frank DOT Moehle AT Informatik DOT Uni-Oldenburg DOT DE> wrote:
> > Hi,
> > 
> > >
> > >> --- Frank Moehle <Frank DOT Moehle AT Informatik DOT Uni-Oldenburg DOT DE>
> wrote:
> > >> Using "objdump -p" on the external DLL, i get a huge number of
> lines,
> > >> starting with the one quoted below (second dump).
> > >> What i understand is that the DLL needs a lot of "standard"
> > >> function like printf, malloc, etc from another DLL called
> "nutlibc4.dll".
> > >> Does this interfere with the function from cygwin1.dll, which our
> program
> > is 
> > >> compiled against ??
> > >> 
> > >> btw, we are using cygwin 1.1.4
> > >> 
> > >
> > > Earnie Boyd wrote:
> > >It ain't likely to work.  Mixing two C runtimes is bad news.  Can
> you use
> > >anaport without the nut*.dll?  It looks as if the functions needed
> C
> > functions
> > >may be supported by Cygwin.
> > 
> > Well, that's really bad news.
> > I don't think i can use anaport.dll without the nut* stuff,
> > at least i do not know how to tell NT to skip the reference
> > to the nutlibc4.dll and use cygwin1.dll instead.
> > 
> > Is there a chance to get our program to worl with that DLL
> > when i use the -mno-cygwin option (giving up posix support, 
> > but i still have a gcc and all the unix tools to build the program
> with),
> > or would it be better to take the whole pain an use MSVC ??
> > 
> [Heribert]  That's why I suggested writing a minimal MSVC or mingw
> program calling the problematic anaport routines and passing stuff
> via IPC to your real, bigger Cygwin application. Basically just a
> daemon
> or "service" ...
> 
> The -mno-cygwin uses crtdll and not msvcrt but that might not matter.
> You
> could try it.  If that doesn't work for you try http://www.mingw.org
> and if
> that doesn't work try http://pw32.sourceforge.net.
> 
> I just had a thought, since Nutcracker is a runtime it must come with
> headers
> for that runtime.  Be sure you're using those headers and not the
> Cygwin
> headers, you might want to use the -nostdinc switch in combination
> with the -I
> switch.  Then when linking instead of using the gcc frontend use ld
> directly so
> that you can specify yourself which runtime to use.  You can see what
> libraries
> are added automagically by doing `gcc -v -o foo foo.c'.  You'll want
> to use all
> but -lcygwin.
> 
> [Heribert]  While I'm not familiar with NutCracker (I only used
> Interix and Cygwin),
> I think headers are only in a NutCracker developer installation, not
> in runtime only.
> Especially if nutlibc4.dll is only used indirectly by anaport.dll, so
> you would
> need only headers for the latter one.
> 
> HTH,
> 
> Cheers,
> 
> =====
> Earnie Boyd
> mailto:earnie_boyd AT yahoo DOT com
> 
> ---         <http://earniesystems.safeshopper.com>         ---
> --- Cygwin: POSIX on Windows <http://gw32.freeyellow.com/> ---
> ---   Minimalist GNU for Windows <http://www.mingw.org/>   ---
> 
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