SWIG doesn't recognize argument in make()

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_swigPYTHON_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_swigPYTHON_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