Forum: GNU Radio Creating OOT module

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sreena p h (Guest)
on 2014-06-20 11:42
(Received via mailing list)

I have written a block in python and was trying to create an out of tree
module as given in the gnuradio tutorial.
While using cmake ../ the following error occured.
CMake Error: CMake can not determine linker language for
CMake Error: Cannot determine link language for target "gnuradio-dec".

this was rectified by removing the lib directory and the cmake file was
created without error. Then i run the make install and found following

Scanning dependencies of target _dec_swig
[ 46%] Building CXX object
Linking CXX shared module
/usr/bin/ld: cannot find -lgnuradio-dec
collect2: error: ld returned 1 exit status
make[2]: *** [swig/] Error 1
make[1]: *** [swig/CMakeFiles/_dec_swig.dir/all] Error 2
make: *** [all] Error 2

what should i do to rectify this linking error..

Marcus Müller (Guest)
on 2014-06-20 11:47
(Received via mailing list)
Hi Sreena,

1. have you added your block using gr_modtool? otherwise, cmake won't
notice it's there.
2. if you have, what version of GNU Radio are you using? Support for
python-only OOT modules have but recently been added.

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