Hi,
I have compilation problems with osg-1.0/1.1 on HP-UX, but I am not yet sure
if this is an osg or HP-UX problem.
One of the problems is the way OpenGL extension are handled.
For example
include/osg/BufferObject
contains (more or less) the code
#ifndef GL_ARB_vertex_buffer_object
typedef long GLsizeiptrARB;
typedef long GLintptrARB;
#endif
Now on HP-UX gl.h defines those two typedefs but it does not define
GL_ARB_vertex_buffer_object.
Obviously this leads to a duplicate typedef that falis to compile.
Well, I know that I can expect that all of the ARB_vertex_buffer_object
extension is available in the client library if the macro
GL_ARB_vertex_buffer_object is defined.
But it is not clear to me if I can invert that logic and expect that nothing
of that extension is defined if that macro is not defined.
Is this a problem with osg, that there is _NO_ 'if and only if' connection
between the macro and the typedefs or should I bug HP because of nonstandard
gl headers?
Opinions, or better OpenGL Standard paragaphs to cite? :)
Or is there any other way to to solve that problem in a generic way?
Greetings
Mathias
--
Dr. Mathias Fröhlich, science + computing ag, Software Solutions
Hagellocher Weg 71-75, D-72070 Tuebingen, Germany
Phone: +49 7071 9457-268, Fax: +49 7071 9457-511
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