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Forum: Installation and Configuration
Re: Question Trouble with obtaining an open GL Window (Thomas Eden)
Re: None Re: Trouble with obtaining an open GL Window (John Allison)
Re: None Re: Trouble with obtaining an open GL Window (Thomas Eden)
Date: 20 May, 2010
From: Gabriele Cosmo <Gabriele Cosmo>

Hi Thomas,

this issue should be solved in the more recent versions of Geant4 and
Configure should correctly detect you're running on a 64-bit system,
setting your environment accordingly.
I suggest you to upgrade your Geant4 installation for the support of
new hardware and compilers you may be using.
In 9.0 you can manually set in your environment the variables for the
path of GL and X11 libraries, i.e.:
  export OGLLIBS = "-L/usr/lib64 -lGLU -lGL"
  export X11LIBS = "-L/usr/X11R6/lib64  -lXmu -lXt -lXext -lX11 -lSM -lICE"
and those will be taken into account.

Cheers, Gabriele

On Thu, 20 May 2010 03:44:43 GMT, Thomas Eden wrote:
> Thanks John for replying to my message. If I don't specify new
> environment variable paths to /usr/lib64 on my machine, then
> geant4/config can not find what it needs for a successful build. As I
> stated in my original message, I am able to make a successful build and
> executable image.
> One thing I do remember from running './Configure -build' is that when I
> answer 'y' to the Open GL question in the SLAC installation guide, it
> does say it finds what it needs in /usr, regardless of reassigning new
> environment variable paths. That seemed a bit strange to me.
> I have a couple of questions for you: 1) In
> '~geant4/geant4.9.0/config/sys/Linux-g++.gmk', environment variable
> paths are defined there for X11 and Open GL libraries. Do I need to
> change anything in this make file?
> 2) Because my machine is 64-bit, I think all 32-bit libraries for X11
> and Open GL are deemed useless, is that a fair assumption?
> I hope I have made myself clear to you. If you need anything from me to
> help in understanding this problem, please don't hesitate to ask.
> Thanks, Tom Eden
> On Wed, 19 May 2010 15:10:54 GMT, John Allison wrote:
> > What happens if you let geant4/Configure find OpenGL?

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