Dear all,

My custom block in GRC was being shown as undocumented. When I loaded its
underlying library file in Python, I got the following import error:

ImportError:
/home/ammar/gr-channelsounder/build/lib/libgnuradio-channelsounder-1.0.0git.so.0.0.0:
undefined symbol: fftwf_malloc

I installed the FFTW library provided on [1] but was not able to remove
this issue.
[1]
http://www.fftw.org/fftw3_doc/Installation-on-Unix.html#Installation-on-Unix

Can anybody help me out regarding how to remove this error?

Regards,
Ammar
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