On Mon, Feb 20, 2012 at 10:41 AM, John Coppens <j...@jcoppens.com> wrote:
> Hi guys, > > First time poster... > > I wrote a block to read Matlab files, similar to the Wav file importer, > and finally got around to getting all compile errors solved. I receive > up to 50 350 MB Matlab data files per day, and would prefer to have the > format natively readable in gnuradio, so I wrote the code myself. > > Only on trying to run the grc, I get the following error: > > ImportError: > /usr/local/lib64/python2.6/site-packages/gnuradio/gr/_gnuradio_core_io.so: > undefined symbol: mat_size_of_type > > mat_size_of_type is an extern definition of an (int) array with the > sample sizes possible in Matlab data files. It is defined in > gri_matfile.h / .cc > > I'm suspecting that I have to declare some dependency somewhere else, > but can't seem to find out where. Or, maybe it's not possible to use > lookup tables? I'm somewhat confused that this problem only surfaces > at run-time. > > John > Most likely, you'll have to declare this as a typedef inside the Swig interface (.i) file (http://www.swig.org/Doc1.3/SWIGPlus.html and search for typedef). Generally, this is pretty painless. Tom
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