You're not crazy. I've seen similar behavior. Does it work if you remove
the underscore? The number?

Who can fathom the esoteric secrets of SWIG?

On Mon, Nov 16, 2020 at 3:06 PM Lukas Haase <lukasha...@gmx.at> wrote:

> Additional detail: I tried it again:
>
> $ gr_modtool rm tx_msg2tag
> $
> $ gr_modtool add test
> $ rm -rf build; mkdir build; cd build; cmake ..; make
>
> --> WORKS!!
>
> $ gr_modtool add tx_msg2tag
> $ rm -rf build; mkdir build; cd build; cmake ..; make
>
> --> FAILS with the error below.
>
>
> (of course, I edited the files to replace the <+...+> to make it compile).
>
> It really seems it's the name of the block (tx_msg2tag) that makes things
> fail.
> How can that be?
>
> Lukas
>
> Lukas wrote:
> > Hi Cinaed,
> >
> > *I* am the author of gr-petro ;-)
> > This is indeed a SWIG question. Or a question about OOT modules.
> >
> > I created the module with gr_modtool. I inserted bunch of blocks with
> "add"
> > command. Just this one below does not work. I have no idea why (and it
> drives
> > me crazy).
> >
> > Hence my questions:
> > - What could be the issue?
> > - What exactly generates *swigPYTHON_wrap.cxx files ?
> > - How are the argument lists for the functions determined?
> >
> > Thanks,
> > Lukas
> >
> >
> >> Hi Lukas - gr-petro is a OOT module - an "out of tree "module - it's
> not
> >> part of gnuradio.
> >>
> >> You need to contact the author of the module.
> >>
> >> It's highly unlikely it's a problem with make - it's more likely a
> >> mismatch between gr-petro and your installed version of gnuradio.
> >>
> >> For instance, the OOT was written for a version of gnuradio prior to
> >> 3.8.
> >>
> >> In any case, I couldn't find the gr-petro source code with a Google
> >> search so I can't even guess what the problem might be. It also helps
> to
> >> state which OS you're using.
> >>
> >> -- Cinaed
> >>
> >>> Hi everyone,
> >>>
> >>> It's driving me NUTS! SWIG just won't recognize an argument to my
> make()
> >>> function and hence build fails. I have other nearly identical blocks
> in
> >>> the same module that work without issues.
> >>>
> >>> What exactly generates the *swigPYTHON_wrap.cxx files and how are the
> >>> argument lists for the functions determined?
> >>>
> >>> Here is how my make fails:
> >>>
> >>> [ 77%] Building CXX object
> >>>
> swig/CMakeFiles/petro_swig.dir/CMakeFiles/petro_swig.dir/petro_swigPYTHO
> >>> N_wrap.cxx.o
> >>>
> /home/petro/src/gr38/gr-petro/build/swig/CMakeFiles/petro_swig.dir/petro
> >>> _swigPYTHON_wrap.cxx: In function ‘PyObject*
> >>> _wrap_tx_msg2tag_make(PyObject*, PyObject*)’:
> >>>
> /home/petro/src/gr38/gr-petro/build/swig/CMakeFiles/petro_swig.dir/petro
> >>> _swigPYTHON_wrap.cxx:18687:48: error: no matching function for call to
> >>> ‘gr::petro::tx_msg2tag::make()’ 18687 | result =
> >>> gr::petro::tx_msg2tag::make(); |
> >>> ^ In file included from
> >>>
> /home/petro/src/gr38/gr-petro/build/swig/CMakeFiles/petro_swig.dir/petro
> >>> _swigPYTHON_wrap.cxx:2881:
> >>> /home/petro/src/gr38/gr-petro/lib/../include/petro/tx_msg2tag.h:48:19:
> >>> note: candidate: ‘static gr::petro::tx_msg2tag::sptr
> >>> gr::petro::tx_msg2tag::make(unsigned int)’ 48 | static sptr
> >>> make(unsigned int time_increment_factor); | ^~~~
> >>> /home/petro/src/gr38/gr-petro/lib/../include/petro/tx_msg2tag.h:48:19:
> >>> note: candidate expects 1 argument, 0 provided
> >>>
> /home/petro/src/gr38/gr-petro/build/swig/CMakeFiles/petro_swig.dir/petro
> >>> _swigPYTHON_wrap.cxx: In function ‘PyObject*
> >>> _wrap_tx_msg2tag_sptr_make(PyObject*, PyObject*)’:
> >>>
> /home/petro/src/gr38/gr-petro/build/swig/CMakeFiles/petro_swig.dir/petro
> >>> _swigPYTHON_wrap.cxx:18914:30: error: no matching function for call to
> >>> ‘gr::petro::tx_msg2tag::make()’ 18914 | result = (*arg1)->make();
> >>> | ^ In file included from
> >>>
> /home/petro/src/gr38/gr-petro/build/swig/CMakeFiles/petro_swig.dir/petro
> >>> _swigPYTHON_wrap.cxx:2881:
> >>> /home/petro/src/gr38/gr-petro/lib/../include/petro/tx_msg2tag.h:48:19:
> >>> note: candidate: ‘static gr::petro::tx_msg2tag::sptr
> >>> gr::petro::tx_msg2tag::make(unsigned int)’ 48 | static sptr
> >>> make(unsigned int time_increment_factor); | ^~~~
> >>> /home/petro/src/gr38/gr-petro/lib/../include/petro/tx_msg2tag.h:48:19:
> >>> note: candidate expects 1 argument, 0 provided make[2]: ***
> >>> [swig/CMakeFiles/petro_swig.dir/build.make:63:
> >>>
> swig/CMakeFiles/petro_swig.dir/CMakeFiles/petro_swig.dir/petro_swigPYTHO
> >>> N_wrap.cxx.o] Error 1 make[1]: *** [CMakeFiles/Makefile2:466:
> >>> swig/CMakeFiles/petro_swig.dir/all] Error 2 make: *** [Makefile:141:
> >>> all] Error 2
> >>>
> >>> As can be very, very clearly seen, tx_msg2tag::make(unsigned int) has
> >>> ONE parameter (time_increment_factor). Yet SWIG wants to call
> >>> gr::petro::tx_msg2tag::make().
> >>>
> >>> I have tried regenerating the file, deleting build directory and
> >>> starting from scratch but this error follows me like a nightmare.
> >>>
> >>> Thanks for suggestions!
> >>>
> >>> Lukas
>
>
>
>

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