Re: [Discuss-gnuradio] Building new blocks in Gnu Radio

[Ben Reynwar]

On Mon, Mar 26, 2012 at 12:54 PM, Ben Reynwar <address@hidden> wrote:
> On Mon, Mar 26, 2012 at 10:42 AM, Francisco
> <address@hidden> wrote:
>> Ben Reynwar <ben <at> reynwar.net> writes:
>>
>>>
>>> I think that the best way to get started is to use Martins gr-modtool.
>>>  It will help you to make out-of-tree blocks (out-of-tree means
>>> separate but compatible with your main gnuradio installation).
>>>
>>> It can be found at:
>>> https://github.com/mbant/gr-modtool
>>>
>>> On Mon, Mar 26, 2012 at 2:58 AM, Ebtisam Ahmed <ebtisamahmed90 <at> 
>>> gmail.com>
>> wrote:
>>> > Indeed i have read but i cant understand the building process. I built
>>> > it the i understood but it failed terribly, i have made .h .cc .i and
>>> > makefile.am. Put them in one folder and then done make. i also tried
>>> > ./configure and ./bootstrap but it doesnt work
>>> >
>>> > Anyways thanx for ur time and help me on this....
>>> >
>>> > Regards,
>>> > Ebtisam
>>> >
>>> > _______________________________________________
>>> > Discuss-gnuradio mailing list
>>> > Discuss-gnuradio <at> gnu.org
>>> > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>>
>>
>> Hi all,
>>
>> I've decided to follow your suggestion and get gr_modtool.py.
>>
>> First I created the module with this script which created some folders, files
>> and the .cc and .h files with skeleton code.
>>
>> Then I put my code in the .cc and .h files. I also changed the .xml file so I
>> can use GRC (I haven't used python yet to create graphs).
>>
>> After this, I used cmake. I wrote:
>>>cmake -i
>>>sudo make
>>>sudo make install
>>>sudo ldconfig
>>
>> These were my steps to build a new block to use in GRC. However, I get this
>> error:
>>
>> ImportError: /usr/local/lib/python2.7/dist-
>> packages/mycoolstuff/_mycoolstuff_swig.so: undefined symbol:
>> _Z38mycoolstuff_make_decimated_average_vccifi
>>
>> Yes. My module and block are called mycoolstuff and decimated_average_vcc.cc
>>
>> It seems that there is a problem with the swig. Do I have to configure 
>> anything
>> in the .i files before starting to use cmake?
>>
>> Regards,
>> Francisco
>>
>>
>> _______________________________________________
>> Discuss-gnuradio mailing list
>> address@hidden
>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
> It looks like there is currently a bug in gr-modtool where when you
> generate a new block it gets the module and block name wrong way
> round.

There's no bug.  I'm just incompetent.