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Date: Thu, 30 Jul 2009 15:43:50 +0200
From: Martine Carannante <Martine DOT Carannante AT bull DOT net>
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To: cygwin AT cygwin DOT com
Subject: Creation of a shared module  (gcc -shared) , undefined references
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Hi

I try to port on CYGWIN an open source which runs correctly  on Linux.
In this open source, a shared module (linked with option -shared) is=20
created and after it's loaded by the main program with lt_dlopen() function.

On CYGWIN, I have a problem when I create the module (gcc option=20
-shared). I have always some undefined references to functions which=20
belongs to the main program. On Linux it's not a problem, there are no=20
errors.
 I try to add the option -Wl,-allow-shlib-undefined. I have always the=20
problem.

I don't know what to do. Are there other options to add to the gcc=20
command ?I tried several..or do I have to modify the source code of the=20
module?
I'm not very familiar with shared modules.

Thanks for your help
Best regards
Martine


--=20
Martine Carannante
System Software Development R&D=20

Bull, Architect of an Open World TM=20

T=E9l : (+33) 1 30 80 71 87
http://www.bull.com=20


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