Re: [Discuss-gnuradio] Out-of-tree module build fails for lack of Doxygen, despite -DENABLE_DOXYGEN=OFF

[Tom Rondeau]

On Fri, Apr 5, 2013 at 5:56 PM, Monahan-Mitchell, Tim
<address@hidden> wrote:
>> -----Original Message-----
>> From: address@hidden
>> [mailto:address@hidden
>> On Behalf Of Monahan-Mitchell, Tim
>> Sent: Friday, April 05, 2013 2:40 PM
>> To: address@hidden
>> Subject: [Discuss-gnuradio] Out-of-tree module build fails for lack of
>> Doxygen, despite -DENABLE_DOXYGEN=OFF
>>
>> I first used gr_modtool.py to successfully create my out-of-tree module on
>> an Ubuntu 12.04 LTS x86 system (GNU Radio 3.6.4.1).
>>
>> I am now building my module on an Ubuntu system that does not have
>> /usr/bin/doxygen (the new system is based on 12.04 LTS for Arm).
>>
>> Despite specifying -DENABLE_DOXYGEN=OFF, the build fails thusly:
>>
>> # cmake -DENABLE_DOXYGEN=OFF ../
>> -- Build type not specified: defaulting to release.
>> -- Configuring done
>> -- Generating done
>> -- Build files have been written to: /src/gr-mymodule/build
>> # make
>> [  5%] Built target gnuradio-mymodule
>> [ 16%] Built target test-mymodule
>> [ 22%] Built target _mymodule_swig_doc_tag
>> [ 27%] Built target _mymodule_swig_swig_tag
>> [ 33%] Generating doxygen xml for mymodule_swig_doc docs
>> /bin/sh: 1: /usr/bin/doxygen: not found
>> make[2]: *** [swig/mymodule_swig_doc_swig_docs/xml/index.xml] Error
>> 127
>> make[1]: *** [swig/CMakeFiles/_mymodule_swig.dir/all] Error 2
>> make: *** [all] Error 2
>>
>> I have duplicated the above failure on the Ubuntu 12.04 LTS x86 machine by
>> first doing "sudo mv /usr/bin/doxygen /usr/bin/doxygen_tmp" to simulate
>> no doxygen installed.
>>
>> I am trying the same experiment on the gnuradio tree (3.6.4.1) on Ubuntu
>> 12.04 LTS x86; if it builds, maybe I can compare various files to see the
>> difference.
>
> The gnuradio tree build was able to handle this test, so that is good.
>
>> But maybe one of you can beat me to the solution or a work-around :)
>
> I found a work-around by a hostile takeover of the FindDoxygen module of 
> Cmake:
>
> (with sudo as needed)
> # echo 'set(DOXYGEN_FOUND "NO")' 
> >/usr/share/cmake-2.8/Modules/FindDoxygen.cmake
> # echo 'set(DOXYGEN_DOT_FOUND "NO")' 
> >>/usr/share/cmake-2.8/Modules/FindDoxygen.cmake
>
> I will leave it to the smarter people of this list to find a better solution. 
> Cheers!


Hi Tim,

Can you open up a ticket on the gnuradio.org wiki with this
information? That will help us track it better.

Tom