Re: [Discuss-gnuradio] gr-rds

[Ulf Söderberg]

Hi Michael,

I tried that command you mentioned, but I can't see that the path 
"/opt/local/lib/python2.7/site-packages" is there.

{{{
python -c "import sys; print sys.path"
}}}

gives:

['', '/Library/Python/2.7/site-packages/Pygments-1.6-py2.7.egg', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python', 
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip', 
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7', 
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin',
 
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac',
 
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages',
 
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk',
 
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old',
 
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload',
 
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages',
 
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/PIL',
 
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gtk-2.0',
 
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/wx-3.0-osx_cocoa',
 '/Library/Python/2.7/site-packages']

Maybe that's the reason why the rds package isn't found then.

/Ulf

On 14 jan 2014, at 14:16, Michael Dickens <address@hidden> wrote:

> Hi Ulf - Your directory listings look OK.  Ideally, you'd actually use 
> /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages
>  as the Python files install location since that's the normal for MacPorts.  
> But, using /opt/local/lib/python2.7/site-packages is OK and an easy default.  
> Both should be in the default PYTHONPATH; you can see this via the command
> {{{
> python -c "import sys; print sys.path"
> }}}
> 
> So, you should not have to set PYTHONPATH to anything special for this 
> install.  If you have Python files installed elsewhere, you might still need 
> it for those files.
> 
> The "otool" listing for the RDS library:
> {{{
>> libgnuradio-rds.dylib:
>       libgnuradio-rds.dylib (compatibility version 0.0.0, current version 
> 0.0.0)
> }}}
> is fine since nobody is going to be linking against it.  Ideally, this first 
> entry would be the actual path/name combination 
> ("/opt/local/lib/libgnuradio-rds.dylib"), but since it won't be used for 
> anything else it doesn't really matter.  If you want to correct it, you can 
> do so via:
> {{{
> install_name_tool -id /opt/local/lib/libgnuradio-rds.dylib 
> libgnuradio-rds.dylib
> }}}
> 
> If you do the "otool" command on "_rds_swig.so", I think you'll find that it 
> contains:
> {{{
>       _rds_swig.so (compatibility version 0.0.0, current version 0.0.0)
>       libgnuradio-rds.dylib (compatibility version 0.0.0, current version 
> 0.0.0)
> }}}
> and this is where the issue is because the dylib cannot be found since DYLD 
> does not know where to look for it (DYLD can do a lot of things, but it does 
> -not- do arbitrary searches, generally, very well).  Again, the actual path 
> to the .so is not important since this library ("shared object") will never 
> be linked to, just used by Python.
> 
> You can change this incorrect linkage via:
> {{{
> install_name_tool -change libgnuradio-rds.dylib 
> /opt/local/lib/libgnuradio-rds.dylib _rds_swig.so
> }}}
> and then Python should be able to load RDS correctly.
> 
> Hope this helps! - MLD
> 
> On Jan 14, 2014, at 12:51 AM, Ulf Söderberg <address@hidden> wrote:
>> These are the files that gets installed in 
>> /opt/local/lib/python2.7/site-packages/rds:
>> 
>> -rwxr-xr-x  1 root  admin  373688 Jan 14 06:39 _rds_swig.so
>> 
>> In /opt/local/lib, the only file installed is:
>> 
>> -rwxr-xr-x    1 root      admin    549160 Jan 14 06:39 libgnuradio-rds.dylib
>> 
>> The command "otool -L libgnuradio-rds.dylib" renders the following:
>> 
>> libgnuradio-rds.dylib:
>>      libgnuradio-rds.dylib (compatibility version 0.0.0, current version 
>> 0.0.0)