Creation of a shared module (gcc -shared) , undefined references

Martine Carannante Martine.Carannante@bull.net
Thu Jul 30 16:51:00 GMT 2009


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

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

Thanks for your help
Best regards
Martine


-- 
Martine Carannante
System Software Development R&D 

Bull, Architect of an Open World TM 

Tél : (+33) 1 30 80 71 87
http://www.bull.com 


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