Re: [Discuss-gnuradio] Re: Re: GNU Radio release 3.2.2 available for download

[Tom Rondeau]

On Fri, Jul 17, 2009 at 9:12 PM, Yc Park<address@hidden> wrote:
> Thanks to your comment, now I can run find_usrps.
> But this time I've got two issues:
> - scope and fft_sink flickers twice a second.
> - import gnuradio.qtgui makes an error :
>
>>>> from gnuradio.qtgui import qtgui
> Traceback (most recent call last):
>  File "<stdin>", line 1, in <module>
>  File "/usr/local/lib/python2.5/site-packages/gnuradio/qtgui/qtgui.py",
> line 6, in <module>
>    import _qtgui
> ImportError: /usr/local/lib/libgnuradio-qtgui.so.0: undefined symbol:
> _ZN9QwtPicker5resetEv

This looks like you're not finding the QwtPicker::reset routine in
libqwt. Try upgrading to the latest Qwt. I'm running 5.2.0 (and
QwtPlot3D version 0.2.6).

I'd like to know where this is coming from so if it's a general
problem it can be fixed. Qwt and QwtPlot3D don't have the nicest
installation processes, so they can be finicky on different Linux
distros. I've worked with it on Ubuntu, Fedora, and OpenSuse. Which
versions of the qwt libraries are you using and what distro?

Tom


> Actually, expecting better qtgui is the reason I've upgraded, but it's
> not working...
>
> Help would be very much appreciated.
>
> % I did sudo make uninstall before installing 3.2.2
> % I used to have make errors about qt3Dlib, but did not get them during
> the final try. anyway, I wonder if these things got related.