RE: undefined reference to `non-virtual thunk [nv:-35] - resolved

[erik_ohrnberger]

Part of the code that I was compiling was a number of bit packed structure
definitions using #pragma pack(1).  

It would appear that this causes problems for the virtual table stuff.  When
I went to surrounding the bit packed structures with 
#pragma pack(push,1)
< structure definition here>
#pragma pack(pop)

The problem went away.  This would appear to be a rather isolated and
strange circumstance not typically encountered by the average developer, so
I hope that this record helps someone in the future.

Erik.

> -----Original Message-----
> From: Ohrnberger, Erik 
> Sent: Tuesday, May 10, 2005 1:09 PM
> To: address@hidden; address@hidden
> Subject: undefined reference to `non-virtual thunk [nv:-35]
> 
> 
> I'm really at a loss here and don't know how to proceed as to 
> correct this issue.
> 
> During the link phase of my gtkmm program I get this error 
> associated with one of my shared libraries.  Obviously 
> there's a problem here, but what is the error message trying 
> to tell me?
> 
> The program is using gtkmm, ACE, and the GNU Common C++2 library.
> 
> ACE is providing the network level communications, gtkmm is 
> providing the GUI, and the GNU Common C++2 library is 
> providing the object persistence.
> 
> This error occurs at the point in the development when I 
> incorporate the ACE library, yet the error is pointing to one 
> of my classes.
> 
> Any hints as to how to track this down further?
> 
> Thanks in advance.
> 
> Erik.
>