Normally when GRASS is run, it sets up an environment which includes a setting* 
to locate library binaries within the GRASS folder structure, just in case they 
are expected somewhere else, like NVIZ is looking for that ffmpeg library.  
When I package GRASS, I try to fix these, though that setting will catch what I 
miss.

Qgis should take care of this as well, but maybe it isn't.  Or should I read 
that literally, and you are trying to run NVIZ directly from a terminal, 
without running GRASS first?

Looking at NVIZ, I see that it may also have problems with TclTk later - either 
not finding the bundled copy, or finding the system one, which is older and may 
cause trouble...

* On *nix systems it's LD_LIBRARY_PATH, but on OS X it's DYLD_LIBRARY_PATH.

On Oct 12, 2010, at 4:30 PM, Luca Mandolesi wrote:

> Hi, 
> I'm working under mac os x 10.5.8 with qgis 1.5 and grass 6.4.
> 
> If I try to launch NVIZ appear  this message:
> 
> /Applications/GRASS-6.4.app/Contents/MacOS/bin/nviz --interface-description
> 
> dyld: Library not loaded: /Users/Shared/unix/ffmpeg-leo/lib/libavutil.dylib 
> Referenced from: 
> /Applications/GRASS-6.4.app/Contents/MacOS/lib/libgrass_ogsf.dylib Reason: 
> image not found
> 
> 
>  Suggestions?
> _______________________________________________
> Qgis-developer mailing list
> [email protected]
> http://lists.osgeo.org/mailman/listinfo/qgis-developer

-----
William Kyngesburye <kyngchaos*at*kyngchaos*dot*com>
http://www.kyngchaos.com/

"This is a question about the past, is it? ... How can I tell that the past 
isn't a fiction designed to account for the discrepancy between my immediate 
physical sensations and my state of mind?"

- The Ruler of the Universe


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