Hi Nicolas,
so the good news is that you're doing things right:
the CMake output contains this line:
> Checking for GNU Radio Module: UHD
which indicates that you did a
set(GR_REQUIRED_COMPONENTS RUNTIME UHD PMT)
(or even more), so the libraries that CMake *should* link against are
being found.
You should check your gr-dyspan/lib/CMakeLists.txt; look for the lines
starting with
target_link_libraries(...
These should also include ${GNURADIO_ALL_LIBRARIES}.
Best regards,
Marcus
On 05/19/2015 10:40 AM, Nicolas Cuervo Benavides wrote:
> Hi all,
>
> I'm having right now problems with a implementation of a time tag in a
> block that I'm writing. I'm basically writing a burst tagger with SOB,
> EOB and TX_TIME tags. The first two are working, but the third (the
> one that uses a UHD function), is giving me problems.
>
> I recognized that the part that is not properly working is when I
> write "uhd::time_spec_t". I even tried to create an arbitrary variable
> by writing just "uhd::time_spec_t test;" in an arbitrary function and
> then ctest, and then I notice that there is problems with that, as the
> output says:
>
> " /$WORKING_DIR$/build/lib/libgnuradio-dyspan.so: undefined
> symbol: _ZN3uhd11time_spec_tC1Ed"
>
> Make and make install of my block run without any issue.
>
> I have in the headers and body the necessary includes, such as
> <sys/time.h> and <uhd/types/time_spec.hpp>. I also added the UHD
> module in the CMakeList.txt file and it is found, as I can see this
> in the output:
>
> -- Build type not specified: defaulting to release.
> -- Boost version: 1.54.0
> -- Found the following Boost libraries:
> -- filesystem
> -- system
> -- date_time
> Checking for GNU Radio Module: RUNTIME
> * INCLUDES=/usr/local/include
> *
> LIBS=/usr/local/lib/libgnuradio-runtime.so;/usr/local/lib/libgnuradio-pmt.so
> GNURADIO_RUNTIME_FOUND = TRUE
> Checking for GNU Radio Module: UHD
> * INCLUDES=/usr/local/include
> *
> LIBS=/usr/local/lib/libgnuradio-uhd.so;/usr/local/lib/libgnuradio-runtime.so;/usr/local/lib/libgnuradio-pmt.so
> GNURADIO_UHD_FOUND = TRUE
> Checking for GNU Radio Module: PMT
> * INCLUDES=/usr/local/include
> *
> LIBS=/usr/local/lib/libgnuradio-runtime.so;/usr/local/lib/libgnuradio-pmt.so
> GNURADIO_PMT_FOUND = TRUE
> --
> -- Checking for module SWIG
> -- Found SWIG version 2.0.11.
> -- Configuring done
> -- Generating done
> -- Build files have been written to: /$WORKING_DIR$/build
>
> I sincerely don't know what am I missing. Maybe I'm skipping some
> linking steps, but I don't know right now how to trace this. Any type
> of help will be welcomed.
>
> Thanks in advance for your opinions,
>
> Nicolas
>
>
> --
> Nicolás Cuervo Benavides
> Handy: +49 157 70476855
> Electric and Electronic Engineering department.
> Electronic Engineering
> Universidad Nacional de Colombia
> --
> Student M.Sc. Information and Communication Technology
> Karlsruher Institut für Technologie
> Karlsruhe, Baden Würtemberg, Germany
>
>
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> Discuss-gnuradio@gnu.org
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