Re: gtk/g_object_compat_control error after upgrading Ubuntu

[Dave Kuhlman <dkuhlman cutter rexx com>]

David Nečas (Yeti <yeti <at> physics.muni.cz> writes:

> 
> What
> 
>   ldd some-gtk-app
> 
> prints?  Namely the libgobject-2.0 is interesting.
> 

David (Yeti) -

Wow.  I am really glad that I asked this question.  Your reply was very 
educational.

After posting my original message, I continued working on this problem.  I 
remembered that, some time ago, I had compiled gtk+ on my machine.  So I did

    $ make uninstall

for each of pango, cairo, glib, and gtk+.

Now, when I do (as you suggested):

    $ ldd gedit

I do not see references to the libraries that I built in /usr/local/lib.

I guess my problem was that these libraries were old and not up-to-date.



> > This symbol seems to be defined in libgobject-2.0.a.  I ran::
> > 
> >     $ nm -A --defined-only lib* | grep g_object_compat_control | less
> 
> You cannot get symbols from shared libs with nm.  Try
> something like
> 
>   eu-readelf --symbols libgobject-2.0.so.0.1000.3

I do not have eu-readelf on my machine.  I will have to go looking for it.

> 
> instead to get symbol info from the dynamic lib. Static libs
> (.a) are not used for dynamic linking and thus irrelevant
> here.
> 
> What libgobject-2.0* files you have there anyway?
> 

I believe that the problem was that the version in /usr/local/lib was built 
from old source.  When I removed it, my system started finding the more up-to-
date version in /usr/lib.  That fixed my problem.

I do not need to build gtk+ from source right now, but will likely need to do 
so in the future.  I will have to try to remember this problem, and the 
suggestions you (Yeti) gave me to track it down.  I've saved your message where 
I will have it next time.

Thanks again.

Dave