[Discuss-gnuradio] compiling and working with gnuradio in windows

[Seth Hollar]

I am definitely a newbie here, so excuse me if I am asking some things 
that might seem obvious.

I am mostly a windows guy, so I compiled and installed both the UHD 
(003.004.003-253-gd9829759) and the gnuradio (3.6.2) under windows using 
the CMAKE program.

After some effort, I can run gnuradio-companion.  In the gnuradio 
examples, I've tried filter/resampler_demo.grc and pfb/resampler_demo.grc.

The pfb/resampler_demo.grc seems to run without any trouble. However, 
when I execute filter/resampler_demo.grc, Python crashes. In the block 
diagram, if I remove the arbitrary resampler block, python doesn't seem 
to crash when I run it.  So, I'm guessing that the arbitrary resampler 
module is causing the problems.

filter/resampler_demo.grc crashes consistently even when I use the 
precompiled binaries from Ettus and even when I install gnuradio on a 
different windows machine.

When running gnuradio in Virtualbox under Ubuntu, however, 
filter/resampler_demo.grc executes without a problem.

If you had any thoughts on this, I would appreciate it.
Thanks so much,
Seth


Other randome notes:
To run the GRC examples, I need to delete the first line that starts 
with the hash '#'.  It seems like GRC expects the bracket '<' as the 
first line.

I have to say, that as a newcomer, the whole issue of installing and 
understanding gnuradio is very confusing.  One additional issue I ran 
into (but overcame) is a link error in the gnuradio compile:

when compiling gnuradio-core (?), I get two link errors in 
uhd_swigPYTHON_wrap.obj of the variety:
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
__thiscall uhd::range_t::range_t(class uhd::range_t const &)" 
(address@hidden@@address@hidden@@Z) ...

For some reason, it seems that the definitions have to be explicitly 
declared in the source, so I added the following to ranges.cpp:
range_t::~range_t(void)
{
    /* NOP */
}

range_t::range_t(range_t const & _copy_range_t)
{
    _start = _copy_range_t._start;
    _step  = _copy_range_t._step;
    _stop  = _copy_range_t._stop;
}

added code to ranges.hpp
        // copy range
        range_t(range_t const & _copy_range_t);

        // declare destructor
        ~range_t(void);