Re: [Swig-user] error building shared library namespaces

[Marcelo M. <mm...@ac...>]

Ingo Braun wrote:

>Hello!
>
>SWIG version 1.3.28 should be able to handle namespaces. However I get a problem while linking the .o files into a shared lib.
>----------------------------------------------------
>The interface file:
>%module name
>%{
>#include "name.h"
>%}
>----------------------------------------------------
>The h file:
>namespace MyNameSpace {
>int count;
>} 
>  
>
the header file above doesn't declare a variable, it defines it.
hence, if you include the hedear file in two places
 (name.cpp and name_wrap.cpp), you will end with two symbols.

Try using:
 

namespace MyNameSpace {
 extern int count;
} 


Marcelo


>----------------------------------------------------
>The cpp file:
>#include "name.h" 
>using namespace MyNameSpace;
>count = 7;
>----------------------------------------------------
>
>I entered:
> gcc -c name.cpp
> /opt/swig-1.3.28/bin/swig -python -c++ name.i
> gcc -c -I/opt/Python-2.4.2/include/python2.4/ name_wrap.cxx
> gcc -shared name.o name_wrap.o -o _name.so
>name_wrap.o(.bss+0x0): multiple definition of `MyNameSpace::count'
>name.o(.bss+0x0): first defined here
>collect2: ld returned 1 exit status
>
>Where is the multiple definition? Does anybody know this problem? Thank you very much.
>Ingo
>__________________________________________________________________________
>Erweitern Sie FreeMail zu einem noch leistungsstarkeren E-Mail-Postfach!		
>Mehr Infos unter http://freemail.web.de/home/landingpad/?mc=021131
>
>
>
>-------------------------------------------------------
>This SF.net email is sponsored by: Splunk Inc. Do you grep through log files
>for problems?  Stop!  Download the new AJAX search engine that makes
>searching your log files as easy as surfing the  web.  DOWNLOAD SPLUNK!
>http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642
>_______________________________________________
>Swig-user mailing list
>Swi...@li...
>https://lists.sourceforge.net/lists/listinfo/swig-user
>  
>