[flext] compiling a flext external using dynamic libraries

[Thomas Grill]

Great, looking forward to the final external!
gr~~~

Am 19.09.2011 um 17:28 schrieb dev scrime:

> Hey Thomas & list,
>
> It was as simple as that :)
> Plus a few path errors corrected ...
> It works ! At last !
> Thanks a lot, I still have to do the programming but that should be  
> fine now.
>
> FYI, this external is a port of an algorithm from a LaBRI team  
> (Computer Science Research Lab, Bordeaux, France), resulting of the  
> researches of Sylvain Marchand.
> I'm actually a member of the SCRIME, which is a kind of mini-IRCAM  
> in Bordeaux, and which is part of the LaBRI.
> I'll get back here to post more when the external is functionnal.
>
> Thanks again ! (for your help and for making flext)
> cheers,
> Joseph
>
>
> Le 19/09/11 16:17, Thomas Grill a écrit :
>>
>> Hi Joseph,
>> quite obviously, relevant symbols of the fftw library can't be  
>> loaded by the dynamic linker.
>> Try adding -lfftw3 to LDFLAGS.
>> gr~~~
>>
>> Am 19.09.2011 um 15:28 schrieb dev scrime:
>>
>>> Hello list,
>>>
>>> I'm actually trying to port a spectral sound spatialization  
>>> algorithm to Pd using flext (the external is called msmSpat~,  
>>> related to the name of the team who developed the algorithm, Sound  
>>> and Music Manipulation).
>>>
>>> This algorithm is bundled into a library (msm3D-1.0.dylib), which  
>>> relies on another library (fftw3.3.dylib).
>>>
>>> I managed to compile the external by adding a few options in the  
>>> config-mac-pd-gcc.txt file :
>>>
>>> # user defined compiler flags
>>> UFLAGS += -ffast-math -mmacosx-version-min=10.4 -I/usr/local/ 
>>> include/msm3D-1.0 -I/opt/local/include
>>>
>>> # user defined linker flags
>>> LDFLAGS += -mmacosx-version-min=10.4 -L/usr/local/lib -lmsm3D-1.0
>>>
>>> but it seems to me that it's not a very clean solution, and anyway  
>>> it doesn't work because the external refuses to load.
>>> The error message in the Pd console is :
>>>
>>> /Applications/Pd-extended-0.42.5.app/Contents/Resources/extra/ 
>>> msmSpat~.pd_darwin: dlopen(/Applications/Pd-extended-0.42.5.app/ 
>>> Contents/Resources/extra/msmSpat~.pd_darwin, 10): Symbol not  
>>> found: _fftw_destroy_plan
>>>   Referenced from: /Applications/Pd-extended-0.42.5.app/Contents/ 
>>> Resources/extra/msmSpat~.pd_darwin
>>>   Expected in: dynamic lookup
>>>
>>>  msmSpat~ 8 8
>>> ... couldn't create
>>>
>>> I'm not a very experienced developer so maybe I don't see  
>>> something evident ...
>>> But I would greatly appreciate any help on this.
>>> Is the trick of adding options in the config file a bad  
>>> technique ? Or does the problem come from somewhere else ?
>>>
>>> Thanks,
>>> Joseph
>>> _______________________________________________
>>> http://grrrr.org/ext/flext
>>>
>>> flext mailing list
>>> flext at grrrr.org
>>> http://grrrr.org/cgi-bin/mailman/listinfo/flext
>>
>> --
>> Thomas Grill
>> http://grrrr.org
>>
>>
>>
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://grrrr.org/pipermail/flext/attachments/20110919/4d8ec2f7/attachment-0001.htm>