Re: [Caml-list] LablGL on Ubuntu?

[Julien Cristau <julien.cristau@ens-lyon.fr>]

On Mon, Aug 29, 2005 at 09:56:57 +0200, Chris Campbell wrote:

> Thanks everyone.  Now opengl is working, but for some reason native
> linking fails with some X errors.
> 
> ocamlfind ocamlopt -package 'lablgl lablgl.glut' -linkpkg -I maths -I
> polygonizer -thread  -cclib -lX11 -o xpoly d3maths.cmxa
> polygonizer/octree.cmx polygonizer/polygonizer.cmx
> polygonizer/testSurfaces.cmx polygonizer/poly.cmx
> 
> /usr/X11R6/lib/libGL.a(glxcmds.o): In function `glXGetMscRateOML':
> : undefined reference to `XF86VidModeQueryVersion'
> /usr/X11R6/lib/libGL.a(glxcmds.o): In function `glXGetMscRateOML':
> : undefined reference to `XF86VidModeGetModeLine'
> collect2: ld returned 1 exit status
> Error during linking
> 
Hi,

this sounds like you're using the proprietary nvidia driver, which
causes this link problem (lablgl itself doesn't reference symbols in
libxxf86vm, but the libGL provided by nvidia seems to do and to not be
correctly linked with it).
Try building with libGL from xorg instead of nvidia (for example in a
clean chroot).

Hope this helps,
Julien