Support Requests item #429196, was opened at 2001-05-31 17:59
Message generated for change (Comment added) made by nobody
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Category: GL
Group: v1.5.6
Status: Closed
Resolution: None
Priority: 5
Private: No
Submitted By: Don Goodman-Wilson (captoblivious)
Assigned to: Tarn Weisner Burton (twburton)
Summary: undefined symbol in _opengl.so
Initial Comment:
When attempting to import OpenGL.GL, I recieve the
following error:
Traceback (most recent call last):
File "geodesic.py", line 4, in ?
from OpenGL.GL import *
File
"/usr/lib/python2.0/site-packages/OpenGL/GL/__init__.py",
line 21, in ?
import OpenGL.dynload._opengl
ImportError:
/usr/lib/python2.0/site-packages/OpenGL/dynload/linux-i386/_opengl.so:
undefined symbol: glPolygonOffsetEXT
Inspecting the opengl include files, and in particular,
<GL/glext.h> seemed to indicate (mind you, I have
little or no experience with OpenGL extensions) that
GL_GLEXT_PROTOTYPES needed to be #define'd. So, in the
setup.py script, I added -DGL_GLEXT_PROTOTYPES to
enable extensions. When that failed, I explictly #def'd
it in _openglmodule.c. Again, this did not alleviate
the problem. What, then, needs to be done to rectify this?
Useful tidbits: Linux Mandrake 8.0, Kernel 2.4.3 (plus
Mandrake's patches) XFree86 4.0.3, Mesa 3.4.1 (with
NVIDIA_GLX 0.9-769), Python 2.0
----------------------------------------------------------------------
Comment By: Nobody/Anonymous (nobody)
Date: 2013-02-12 13:56
Message:
nFQdgq <a href="http://fihphtpijkla.com/">fihphtpijkla</a>,
[url=http://hmtvszrcgfaj.com/]hmtvszrcgfaj[/url],
[link=http://lpxijxqudnxt.com/]lpxijxqudnxt[/link],
http://vaqgsugjgomd.com/
----------------------------------------------------------------------
Comment By: Tarn Weisner Burton (twburton)
Date: 2001-06-30 08:59
Message:
Logged In: YES
user_id=21784
This is really a bug in NVidia's driver. If GL_EXT_* is
defined then the correct protos should be exported. To
avoid this bug I changed _openglmodule.c to link to the non-
EXT proto if GL_VERSION_1_1 is defined.
----------------------------------------------------------------------
Comment By: Nobody/Anonymous (nobody)
Date: 2001-06-08 14:32
Message:
Logged In: NO
fixed the problem. Source: NVidia OpenGL drivers rename some
-EXT functions. in _openglmodule.c i added:
#define glPolygonOffsetEXT glPolygonOffset
#define glArrayElementEXT glArrayElement
#define glDrawArraysEXT glDrawArrays
#define glBlendColorEXT glBlendColor
#define glBlendEquationEXT glBlendEquation
#define glPolygonOffsetEXT glPolygonOffset
#define glArrayElementEXT glArrayElement
#define glDrawArraysEXT glDrawArrays
#define glBlendColorEXT glBlendColor
#define glBlendEquationEXT glBlendEquation
at line 3384 or so.
----------------------------------------------------------------------
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