On Tue, Sep 17, 2013 at 2:34 PM, Jared Clements <jared.cleme...@gmail.com> wrote: > I've spent some time recently attempting to update gr-specest to 3.7, > and I've run into a linker issue that's a bit out of my depth, any > suggestions would be helpful. > > I've been following the guide published at > http://gnuradio.org/redmine/projects/gnuradio/wiki/Move_3-6_to_3-7 > > I have so far accomplished the following: > - Remove FindGnuradioCore.cmake and FindGruel.cmake, replaced with > FindGnuradioRuntime.cmake > that I pulled out of > gr-utils/python/modtool/gr-newmod/cmake/Modules/FindGnuradioRuntime.cmake > - Remove all GRUEL_ references and replace GNURADIO_CORE variables > with GNURADIO_RUNTIME_ > - Update #include<gruel/attributes.h> to <gnuradio/attributes.h> > - Changed file structure: > - from gr-specest/include/specest-blockname.h to > gr-specest/include/specest/blockname.h > - from gr-specest/lib/specest-blockname.cc to gr-specest/lib/blockname.cc > (actually, I think that there was some significant changes that > should have been done to split > blockname.cc into blockname_impl.h and blockname_impl.cc but I'm > actually confused by all the > blockname_impl.h that are placed under include/specest, and I'm > not entirely sure that the > split didn't already happen under 3.6) > - Updated gnuradio header files e.g. '#include <gr_sync_block.h>' to > '#include <gnuradio/sync_block.h' > - Updated gnuradio classes and functions to new namespace, e.g. > gr_make_io_signature() to gr::io_signature::make() > > Current status of the effort: > - Complilation errors caused by the need for above updates now worked > out and the files compile without error. > - Build currently broken, stuck at linker errors: > .... > [ 52%] Built target gnuradio-specest > Linking CXX executable qa_arburg_impl > libgnuradio-specest.so: undefined reference to `fftwf_free' > libgnuradio-specest.so: undefined reference to `fftwf_malloc' > .... > - Will be looking into the FindGnuradioRuntime.cmake file I lifted > from gr-utils > - Would love suggestions on how to debug this, "nm" and "ldd" show > issues but not root causes... > > Future work not yet started: > - updating the gr-specest namespace to the new format > - adding new blocks: cross-correlation, normalization, running sum, etc > > I've posted all my code at https://github.com/dfxx/gr-specest. Any > help tracking down the root cause of the linker errors would be > greatly appreciated. I have the feeling that it might be in the cmake > configuration, and I feel somewhat like a bull in a china shop when I > start poking around in cmake. Lots of delicate looking code in there.
You'll (probably) need to link against fftw. I think you need to add the FFT3 library to target_link_libraries in the lib/CMakeLists.txt file. There was a change in policy for linking recently that's affected things like this. -- Tom Visit us at GRCon13 Oct. 1 - 4 http://www.trondeau.com/grcon13 _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
