[TriZPUG] gtk module finds wrong libraries

[David Handy]

On Thu, Mar 31, 2011 at 11:44:00AM -0400, David Handy wrote:
> Since you apparently compiled Python yourself, read carefully through the
> configure options and see if there is something that allows you to set the
> shared libary search path to explicitly search /usr/local/lib first.

In other words, try setting the "rpath", or run-time shared library search
path, at Python compile-time.

http://www.eyrie.org/~eagle/notes/rpath.html

David H

> On Thu, Mar 31, 2011 at 07:35:40AM -0700, Joseph Mack NA3T wrote:
> > linux 2.6.x
> > python2.6 in /usr/local/lib
> > 
> > I'm installing on a system with old gnome libraries (eg gtk) which
> > are in /usr/lib64 (/usr/lib64 is in /etc/ld.so.conf). Due to
> > administrative constraints, I have to install in /usr/local, where I
> > have installed the current gnome libraries, python and its modules.
> > Thus I have new libraries in /usr/local/lib and the old libraries in
> > /usr/lib64. /usr/local/lib is _not_ in /etc/ld.so.conf and I handle
> > finding these libraries first by having /usr/local/lib first in
> > LD_LIBRARY_PATH. This works so far, except the case here.
> > 
> > When I import gtk I get
> > 
> > Python 2.6.5 (r265:79063, Jan 26 2011, 11:29:31)
> > [GCC 4.1.2 20080704 (Red Hat 4.1.2-46)] on linux2
> > Type "help", "copyright", "credits" or "license" for more information.
> > >>>import gtk
> > Traceback (most recent call last):
> >   File "<stdin>", line 1, in <module>
> >   File
> > "/usr/local/lib/python2.6/site-packages/gtk-2.0/gtk/__init__.py",
> > line 48, in <module>
> >     from gtk import _gtk
> > ImportError:
> > /usr/local/lib/python2.6/site-packages/gtk-2.0/gtk/_gtk.so:
> > undefined symbol: gtk_recent_action_get_type
> > >>>
> > 
> > The undefined symbol is in the new gnome libraries in
> > /usr/local/lib, but not in the old libraries in /usr/lib64. It seems
> > that python is looking to /etc/ld.so.conf (which directs it to
> > /usr/lib64) to find its libraries, rather than using
> > LD_LIBRARY_PATH.
> > 
> > If I move the old gnome libraries in /usr/lib64 out of the way, I
> > can import gtk just fine. I'm not allowed to use this as a permanent
> > solution and have to restore the old libraries.
> > 
> > How do I get python to look in /usr/local/lib before /usr/lib64 for
> > its libraries?
> > 
> > I haven't found anything in Beazley, although I expect I don't know
> > where to look.
> > 
> > Thanks Joe
> > -- 
> > Joseph Mack NA3T EME(B,D), FM05lw North Carolina
> > jmack (at) wm7d (dot) net - azimuthal equidistant map
> > generator at http://www.wm7d.net/azproj.shtml
> > Homepage http://www.austintek.com/ It's GNU/Linux!
> > _______________________________________________
> > TriZPUG mailing list
> > TriZPUG at python.org
> > http://mail.python.org/mailman/listinfo/trizpug
> > http://trizpug.org is the Triangle Zope and Python Users Group
> _______________________________________________
> TriZPUG mailing list
> TriZPUG at python.org
> http://mail.python.org/mailman/listinfo/trizpug
> http://trizpug.org is the Triangle Zope and Python Users Group