Re:[Discuss-gnuradio] undefined symbol error:

[Qi Chen]

Michael,

On Mar 3, 2008, at 8:33 AM, Michael Dickens wrote:

> On Mar 2, 2008, at 9:28 PM, Qi Chen wrote:
> > ImportError: /usr/local/lib/python2.4/site-packages/gnuradio/gr/ 
> > _gnuradio_swig_py_runtime.so: undefined symbol:  
> > _ZN28gr_single_threaded_scheduler4stopEv
>
>
> It looks like '/usr/local/lib' isn't in the library search path.   
> If you're running on some versions of Linux, you'll need to update  
> the ld.so cache after installing GNU Radio:
>
> $ cat /etc/ld.so.conf
> --> if /usr/local/lib isn't in this file, then do the following 3  
> commands; otherwise, go to the end and run that command:
I ran the above command and /usr/local/lib wasn't included

> $ cp /etc/ld.so.conf /tmp/ld.so.conf
> $ echo /usr/local/lib >> /tmp/ld.so.conf
> $ sudo mv /tmp/ld.so.conf /etc/ld.so.conf

after executing those three line, the path was successfully included.
> then
>
> $ sudo ldconfig

I tried running the same script, it's giving me the same error message

> now try running those GNU Radio scripts again and if it still  
> fails, please include your computer's setup info: how you installed  
> GNU Radio, OS and version, how you installed background apps and  
> such. - MLD

My machine is running fedora 6, and all source files are stored on a  
network drive. I built everything from there. I checked with out sys  
admin about the permission, looks ok.
It wasn't a fresh install, it was upgraded from the older version,  
after I checked out the latest version from /trunk, I did the following:

./bootscrap
./configure
sudo make && make check  ( I had to use sudo here for some permission  
reason)
sudo make install

everything looked fine after those steps, no error messages (after I  
got the permission issue fixed).

I didn't reinstall all the dependencies, coz they were already  
installed, and the I could run the previous gnuradio software and  
scripts no problem.