[Discuss-gnuradio] gr_modtool and swig

[Laur Joost]

Hi all!

I've run into problems with swig in a project generated by gr_modtool.

When I run

ctest -V -R tle_cc

the test fails with import error:

2: Traceback (most recent call last):

2:   File "/home/ec/Thesis/blocks/gr-doppler/python/qa_doppler_tle_cc.py", line 25, in <module>

2:     import doppler_swig as doppler

2:   File "/home/ec/Thesis/blocks/gr-doppler/build/swig/doppler_swig.py", line 28, in <module>

2:     _doppler_swig = swig_import_helper()

2:   File "/home/ec/Thesis/blocks/gr-doppler/build/swig/doppler_swig.py", line 24, in swig_import_helper

2:     _mod = imp.load_module('_doppler_swig', fp, pathname, description)

2: ImportError: /home/ec/Thesis/blocks/gr-doppler/build/lib/libgnuradio-doppler.so: undefined symbol: _ZTIN2gr7doppler14doppler_tle_ccE

1/1 Test #2: qa_doppler_tle_cc ................***Failed    1.83 sec

Objdump has this to say: 

address@hidden:~/Thesis/blocks/gr-doppler/build$ objdump -tT lib/libgnuradio-doppler.so | grep _ZTIN2gr7doppler14doppler_tle_ccE

0000000000000000         *UND* 0000000000000000              _ZTIN2gr7doppler14doppler_tle_ccE

0000000000000000      D  *UND* 0000000000000000              _ZTIN2gr7doppler14doppler_tle_ccE

doppler_tle_cc.h is the public header, with doppler_tle_cc_impl.cc/.h being the implementation header and source. The code compiles.

The test worked before. I refactored the parameters and added setters and getters, and initialized some variables, but can't pinpoint which of these broke it.

I know this is not a lot to go on, but perhaps someone has seen something like this before and can chime in on where to look?

All the best

Laur Joost