ImportError: Library "GL" not found.

[Valentinos]

I'm trying to install pyglet on Python 2.5.1 on Solaris 10. When
trying to run a test program, I get the following:

Traceback (most recent call last):
File "/tmp/sprite_test/sprite_test.py", line 2, in <module>
from pyglet.window import *
File "/usr/local/versions/python-2.5.1/lib/python2.5/site-packages/
pyglet/window/__init__.py",
line 133, in <module>
from pyglet.gl import gl_info
File "/usr/local/versions/python-2.5.1/lib/python2.5/site-packages/
pyglet/gl/__init__.py",
line 99, in <module>
from pyglet.gl.lib import GLException
File "/usr/local/versions/python-2.5.1/lib/python2.5/site-packages/
pyglet/gl/lib.py",
line 143, in <module>
from pyglet.gl.lib_glx import link_GL, link_GLU, link_GLX
File "/usr/local/versions/python-2.5.1/lib/python2.5/site-packages/
pyglet/gl/lib_glx.py",
line 48, in <module>
gl_lib = pyglet.lib.load_library('GL')
File "/usr/local/versions/python-2.5.1/lib/python2.5/site-packages/
pyglet/lib.py",
line 122, in load_library
raise ImportError('Library "%s" not found.' % names[0])
ImportError: Library "GL" not found.

Has anyone seen this before? What's the issue? Any help would be
greatly appreciated.

-Valentinos