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Mail Archives: cygwin/2000/04/28/21:00:28

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Message-ID: <3909EC65.AAA36A90@freenet.edmonton.ab.ca>
Date: Fri, 28 Apr 2000 20:54:13 +0100
From: eho <eho AT freenet DOT edmonton DOT ab DOT ca>
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To: cygwin AT sourceware DOT cygnus DOT com
Subject: Re: cygwin gcc user library question
References: <3909C5CE DOT A4755E4A AT freenet DOT edmonton DOT ab DOT ca> <20000428212113 DOT C5447 AT cygnus DOT com> <3909E7F6 DOT 17AB1D3F AT freenet DOT edmonton DOT ab DOT ca> <20000428214934 DOT A5880 AT cygnus DOT com>

Thanks Chris. I think it's the compatibility issues because I tried it under
Linux with no problem. I think I had also tried it on other NT using Visualage
C++ with no problem.

Chris Faylor wrote:

> There is no guarantee that you'll be able to mix Microsoft libraries with
> gcc libraries.
>
> There is a guarantee that if you try to use a c++ library that was not
> generated with g++ (aka gcc) it definitely will not work.  I don't know
> if that is the case here or not but I thought I would mention it now in
> case that is the next question.
>
> We're working on compatibility issues so it's possible that the gcc that
> comes with the new release will work better but, again, there are no
> guarantees.
>
> Sorry.
>
> cgf
>
> On Fri, Apr 28, 2000 at 08:35:18PM +0100, eho wrote:
> >Thanks Chris, I used your suggestion and the following are the commands and
> >messages:
> >bash-2.02$ gcc c/samples/amqsput0.c lib/mqm.Lib -I ./c/include
> >//d/CYGWIN~1/H-I586~1/i586-cygwin32/bin/ld: lib/mqm.Lib(MQM.dll): warning:
> >ignor
> >ing duplicate section `.text'
> >//d/CYGWIN~1/H-I586~1/i586-cygwin32/bin/ld: lib/mqm.Lib(MQM.dll): warning:
> >ignor
> >ing duplicate section `.idata$5'
> >//d/CYGWIN~1/H-I586~1/i586-cygwin32/bin/ld: lib/mqm.Lib(MQM.dll): warning:
> >ignor
> >ing duplicate section `.text'
> >//d/CYGWIN~1/H-I586~1/i586-cygwin32/bin/ld: lib/mqm.Lib(MQM.dll): warning:
> >ignor
> >ing duplicate section `.idata$5'
> >//d/CYGWIN~1/H-I586~1/i586-cygwin32/bin/ld: lib/mqm.Lib(MQM.dll): warning:
> >ignor
> >ing duplicate section `.text'
> >//d/CYGWIN~1/H-I586~1/i586-cygwin32/bin/ld: lib/mqm.Lib(MQM.dll): warning:
> >ignor
> >ing duplicate section `.idata$5'
> >//d/CYGWIN~1/H-I586~1/i586-cygwin32/bin/ld: lib/mqm.Lib(MQM.dll): warning:
> >ignor
> >ing duplicate section `.text'
> >//d/CYGWIN~1/H-I586~1/i586-cygwin32/bin/ld: lib/mqm.Lib(MQM.dll): warning:
> >ignor
> >ing duplicate section `.idata$5'
> >
> >Then when I tried to run a.exe, I got the following:
> >The procedure entry point could not be located in the dynamic link library
> >MQM.dll.
> >
> >Am I missing something here? Thanks
> >
> >Chris Faylor wrote:
> >
> >> On Fri, Apr 28, 2000 at 06:09:34PM +0100, eho wrote:
> >> >Hi there! I tried to use cygwin gcc to compile and link a c program
> >> >under NT. The program uses a library that exists in a lib directory with
> >> >a name abc.Lib. But when I specify the GCC command:
> >> >gcc xxxxxx.c -labc -L ./lib, I got the ld error cannot open -labc. What
> >> >should be the proper way to specify my abc library in the gcc command
> >> >under NT? Thanks
> >>
> >> Cygwin uses the UNIX convention of naming libraries libabc.a, so you'd
> >> do something like this:
> >>
> >> gcc xxxxxx.c -L ./lib -labc
> >>
> >> or
> >>
> >> gcc xxxxxx.c lib/libabc.a
> >>
> >> or
> >>
> >> gcc xxxxxx.c lib/abc.lib
> >>
> >> cgf
>
> --
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