[osg-users] osgversion command fails with symbol lookup error on new clone of OpenSceneGraph 3.5.5 on Linux

Robert Osfield robert.osfield at gmail.com
Tue Oct 11 10:39:03 PDT 2016

Hi Curtis,

Curious, what Linux variant are you using?

FYI, I develop under Kubuntu 16.04 at present, so all the new Affinity
work written in Linux and I've run osgversion a number of times and
not seen any issues with missing linkage.  For dev work I don't
usually install the OSG though, instead setting my LD_LIBRARY_PATH to
pick up the OSG libs where they were built.  This means I don't have
to do a make install each time I modify the OSG codebase, I wouldn't
expect it to change behaviour w.r.t linkgage, but perhaps there is
some relationship.

I just checked the applications/osgversion/CMakeLists.txt and it
includes OpenThreads on the link line so it should work.

Is there any chance you've only install the updated OSG but not the
updated OpenThreads?


On 11 October 2016 at 18:31, Curtis Rubel <crubel at compro.net> wrote:
> Hi,
> After cloning out a copy of OpenSceneGraph 3.5.5 from GitHub,
> and running cmake with default options, then enabled building
> of examples and documentation on Linux only.
> After clean build with no errors, running make install;sudo ldconfig
> osgversion command fails with the following results:
> osgversion
> osgversion: symbol lookup error: /usr/local/lib64/libosgDB.so.145: undefined symbol: _ZN11OpenThreads6Thread20setProcessorAffinityERKNS_8AffinityE
> Actually seems all the default built binaries fail with the same error.
> Are there some other cmake flags, defines or compile options that need to be specified before compiling 3.5.5 and have it run properly on 64bit Linux?
> If more data is needed, just let me know what/how to get it for you
> and I will do my best to get it.
> Cheers,
> Curtis
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=68963#68963
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