[pygccxml-development] Re : Re : Re : Compilation problem

[Vincent F. <vin...@gm...>]

I successfully runned the example pyeasybmp on my platform.
I can run the examples from start to end without any problem.
I generate my .so libs with the same environment variables, and the
same scontruct file.

I tried to make a lib of a very simple file with no dependency.
I still encounter the same problem...

The only difference I see is that there are just .h files in the
pyeasybmp example and that I have a .h and a .cpp file.
Does it influence the results?
How can I do it then?

Here is the err.h I'm trying to wrap, the error message is still the
same (it follows)




//
//  Copyright 2005-2008 Renaud Sizaire
//
//  This file is part of FeResPost.
//
//  FeResPost is free software; you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation; either version 2 of the License, or
//  (at your option) any later version.
//
//  FeResPost is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with FeResPost; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//

#ifndef ERR_H
#define ERR_H

#include <iostream>
#include <stdexcept>
#include <string>

namespace postLib {

  class err {

    private :

      std::string functionName ;
      std::string fileName ;
      int lineNumber ;
      std::string message ;

      static bool Ok ;

    public :

      err(void) ;
      err(std::string fuName,std::string fiName,int liNumber,std::string msg) ;
      err(std::string fiName,int liNumber,std::string msg) ;
      err(const err &in) ;
      ~err(void) ;

      void write(std::ostream &out) const ;
      void exec(std::ostream &out) ;
      void exec(void) ;

      static void setOk(bool) ;
      static bool getOk(void) ;

      static void flushStdStreams(void) ;

  } ;

}

#define errThrow(a,b) { \
   err::flushStdStreams(); \
   err brol(a,__FILE__,__LINE__,b); \
   brol.write(std::cerr); \
   throw(brol); \
}

#define errWrite(a,b) { \
   err::flushStdStreams(); \
   err (a,__FILE__,__LINE__,b).exec(); \
   err::setOk(false); \
}

#define catchAll(a,b) catch(err) { \
   err::flushStdStreams(); \
   std::cerr << "Error caught in :  " << __FILE__ << ":" << __LINE__ << endl ; \
   std::cerr << "   in function :  " << a << endl ; \
   std::cerr << "   with message :  " << b << endl ; \
   err brol(a,__FILE__,__LINE__,b) ; \
   throw(brol) ; \
} \
catch(std::out_of_range) { \
   err::flushStdStreams(); \
   std::cerr << "Error caught in :  " << __FILE__ << ":" << __LINE__ << endl ; \
   std::cerr << "   in function :  " << a << endl ; \
   std::cerr << "   with message :  " << b << endl ; \
   std::cerr << "   error type :  std::out_of_range" << endl ; \
   err brol(a,__FILE__,__LINE__,b) ; \
   throw(brol) ; \
} \
catch(std::bad_alloc) { \
   err::flushStdStreams(); \
   std::cerr << "Error caught in :  " << __FILE__ << ":" << __LINE__ << endl ; \
   std::cerr << "   in function :  " << a << endl ; \
   std::cerr << "   with message :  " << b << endl ; \
   std::cerr << "   error type :  std::bad_alloc" << endl ; \
   err brol(a,__FILE__,__LINE__,b) ; \
   throw(brol) ; \
} \
catch(...) { \
   err::flushStdStreams(); \
   std::cerr << "Error caught in :  " << __FILE__ << ":" << __LINE__ << endl ; \
   std::cerr << "   in function :  " << a << endl ; \
   std::cerr << "   with message :  " << b << endl ; \
   std::cerr << "   error type :  unknown" << endl ; \
   err brol(a,__FILE__,__LINE__,b) ; \
   throw(brol) ; \
}

#endif




Traceback (most recent call last):
  File "test.py", line 4, in ?
    import ferespost
ImportError: /people/ferries/ferespost/unittests/ferespost.so:
undefined symbol: _ZN7postLib7errC1ERKS0_


Thanks again...

2008/6/5, Vincent Ferries <vin...@gm...>:
> The most curious thing is that the error deals with the only class I'm
> actually  trying to make accessible...
> I'd have understood if it came from an inclusion class...
>
> 2008/6/5, Vincent Ferries <vin...@gm...>:
>> The library I try to wrap is an open source library called ferespost
>> used in aerospace calculation.
>>
>> I'm currently trying to wrap one of the main classes
>> postLib::nastran::dataBase which implements
>> postLib::generic::dataBase.
>> I generated the wrapping class, addind all the missing include .h and
>> defining all the missing call_policies so that I haven't any error
>> generating the .cpp file.
>>
>> I compiled it using the sconstruct file I found in the pyEasyBmp
>> example, modifying it according to my configuration.
>>
>> I also tried to comment all the virtual function definitions to see if
>> it was causing my problem.
>>
>> Do I really have to wrap all of the files/classes from the library I'd
>> like to use to be able to compile, or can I simply use a part of it
>> like I'm trying to do actually?
>>
>> 2008/6/4, Roman Yakovenko <rom...@gm...>:
>>> On Wed, Jun 4, 2008 at 6:51 PM, Vincent Ferries
>>> <vin...@gm...> wrote:
>>>> I tried to comment all the virutal method definitions in my generated
>>>> .cpp
>>>> file.
>>>> If I understand what was said on your link, the linker makes dynamic
>>>> links for virtual functions which are not redefined in the same file
>>>> while compiling which causes errors on runtime if it doesn't find
>>>> them, just like in my case.
>>>>
>>>> But without any virtual function left, it should work.
>>>>
>>>> I compiled again and still have the same error when importing the
>>>> module...
>>>
>>> If I should guess, than
>>>   or you forgot to add to the link line some of your libraries
>>>   or your new module depends on some other so and cannot find it
>>>   or there is something else :-)
>>>
>>> --
>>> Roman Yakovenko
>>> C++ Python language binding
>>> http://www.language-binding.net/
>>>
>>
>