Re: dyld: lazy symbol binding failed: Symbol not found: _dlartg_ , using Octave 3.6.3 on OSX 10.8.3

[Alexander Hansen]

On 5/20/13 9:52 AM, Matt Rathbun wrote:
> Hello,
>
> I do not know if this is the right mailing list to ask this, but I am
> horribly out of my depth, and would appreciate any help or re-direction
> that might be offered.
>
> So far, Octave has been working normally for the last month or so, as
> I'm learning very basic commands. However, in trying to use the function
> fminunc(), I receive the following error:
>
>     dyld: lazy symbol binding failed: Symbol not found: _dlartg_
>        Referenced from: /opt/local/lib/libqrupdate.1.dylib
>        Expected in: /opt/local/lib/libtatlas.dylib
>     dyld: Symbol not found: _dlartg_
>        Referenced from: /opt/local/lib/libqrupdate.1.dylib
>        Expected in: /opt/local/lib/libtatlas.dylib
>     panic: Trace/BPT trap: 5 -- stopping myself...
>     attempting to save variables to `octave-core'...
>     save to `octave-core' complete
>     Trace/BPT trap: 5
>     logout
>     [Process completed]
>
> A bit of unfortunate background: I am running OSX 10.8.3. I tried
> following the instructions for 'Manual Installation from Source', and
> was having difficulty getting Octave to build (probably should not have
> tried it, as I clearly didn't really know what I was doing). I think I
> tried to download and install Octave using Fink as well, but I do not
> remember, and somehow this did not work either.

You didn't report that to me, sorry, or I could have helped you fix it :-)

I finally succeeded in
> installing it using MacPorts, but I fear that my previous attempts may
> be part of what has caused some sort of library incompatibilities.
>
> Can anybody help me resolve whatever is causing this error, and what
> presumably will cause innumerably many errors in the future?
>
> Thanks so much! I really appreciate any help that you can offer!
>
> Sincerely,
> Matt

Nothing here really to do with Octave.

You might try using

nm  /opt/local/lib/libtatlas.dylib

to verify whether or not _dlartg_ is actually defined in that.  It's 
defined in Fink's build of ATLAS, so I can't imagine that it's missing 
from Macports' build.

If, indeed, it is defined there, then the issue could be that you have 
DYLD_LIBRARY_PATH set, and it's pointing to a bad libtatlas.dylib.
--
Alexander Hansen, Ph.D.
Fink User Liaison
My package updates: http://finkakh.wordpress.com/