[osg-users] How to properly compile osg with EGL support?

[Chris Hanson]

I know of a couple other people trying to do this. Let me know how you get
on with the X-less OSG.

On Wed, Jan 23, 2019 at 7:31 PM Julien Valentin <julienvalentin51 at gmail.com>
wrote:

> few advices:
> check your driver support with eglinfo
> try adding -legl to the linker flags
> try VERBOSE=1 make
> to check used linkerflags
> Cheers
>
>
>
> Omar Álvarez wrote:
> > Hi.
> > I am trying to compile OSG with EGL support in order to be able to run
> OSG server side without an X display server. I have installed EGL headers
> and the latest and the NVIDIA driver. EGL is detected by OSG and I am
> requesting GLVND GL:
> > > cmake -DOpenGL_GL_PREFERENCE=GLVND .
> >
> >
> > I am getting linking errors:
> > > [ 33%] Linking CXX executable ../../bin/osgversion
> > > ../../lib/libosg.so.3.6.3: undefined reference to `glDrawArrays'
> > > ../../lib/libosg.so.3.6.3: undefined reference to `glCallList'
> > > ../../lib/libosg.so.3.6.3: undefined reference to `glPointSize'
> > > ../../lib/libosg.so.3.6.3: undefined reference to `glTexParameteriv'
> > > ../../lib/libosg.so.3.6.3: undefined reference to `glFrontFace'
> > > ../../lib/libosg.so.3.6.3: undefined reference to `glLightModeli'
> > > ../../lib/libosg.so.3.6.3: undefined reference to `glGetBooleanv'
> > > .........
> >
> >
> > Is this the proper way for compiling OSG with EGL support?
> > I am using CMake 3.13, Ubuntu 18.04 and gcc 7.3. I think the way in
> which the OpenGL library is linked has to change (to support the new CMake
> flag OpenGL_GL_PREFERENCE).
> >
> >  ------------------
> > Post generated by Mail2Forum
>
>
> ------------------------
> Twirling twirling twirling toward freedom
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=75535#75535
>
>
>
>
>
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-- 
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