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[Discuss-gnuradio] undefined Symbol with UHD in GRC

From: Christian Schroeder
Subject: [Discuss-gnuradio] undefined Symbol with UHD in GRC
Date: Mon, 11 Apr 2011 14:33:11 +0200
User-agent: Thunderbird (X11/20101027)


I am just trying to move to UHD. For this I installed the gnuradio master branch to a custom location in my home. Moreover, the uhd software (release 003.000.001 built from source) is at non-default location in /opt/uhd.

./configure, make and make install worked without problems, but when running a simple flowgraph in grc using a uhd block, I get an error message (see below) when importing uhd.

Maybe I am missing an environment variable at this point?


A reply from Josh to a similar posting did not point me to the solution. Libraries are there, but I did not find the symbol in gr-uhd/uhd_swig.i as mentioned.

OS is Ubuntu karmic 9.10 64Bit.

Any hint is be appreciated.

Kind regards,

Traceback (most recent call last):
  File "/home/csc/tmp/top_block.py", line 10, in <module>
    from gnuradio import uhd
File "/home/csc/Software/gnuradio_git_master_2011-03-28/lib/python2.6/site-packages/gnuradio/uhd/__init__.py", line 87, in <module>
File "/home/csc/Software/gnuradio_git_master_2011-03-28/lib/python2.6/site-packages/gnuradio/uhd/__init__.py", line 26, in _prepare_uhd_swig
    import uhd_swig
File "/home/csc/Software/gnuradio_git_master_2011-03-28/lib/python2.6/site-packages/gnuradio/uhd/uhd_swig.py", line 6, in <module>
    import _uhd_swig
ImportError: /home/csc/Software/gnuradio_git_master_2011-03-28/lib/libgnuradio-uhd-3.4.0git.so.0: undefined symbol: _ZN3uhd4usrp10multi_usrp9ALL_GAINSE

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