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From:	"Paul Deppe" <paul DOT deppe AT veridian DOT com>
To:	<cygwin AT cygwin DOT com>
Subject:	OpenGL Problem
Date:	Mon, 23 Dec 2002 20:42:43 -0500
Message-ID:	<ICEHLCGNNLOANGHKEBKJMEJECHAA.paul.deppe@veridian.com>
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Gents:

While working on the FlightGear project we came across this "feature" of the
Cygwin OpenGL support:

> Paul Deppe writes:
> >
> > I found that Cygwin installs TWO copies of gl.h:
> >
> > opengl package installs: /usr/include/GL/gl.h (which declares
> > glActiveTextureARB) and w32api package installs:
> > /usr/include/w32api/GL/gl.h, (which does not).
> >
> > The w32api gl.h is dated later but does not declare glActiveTextureARB.
> >
> > Aha... it works _without_ the above patch when I hide
> > /usr/include/w32api/GL!  Is this a Cygwin bug?

Are there really supposed to be two copies of GL/gl.h?  If so, how does one
make sure that configure picks the right one?

Forwarded for your consideration.

Thanks,

Paul

Paul R. Deppe
Veridian Engineering (formerly Calspan)
Flight & Aerospace Research Group
150 North Airport Drive
Buffalo, NY  14225
(716) 631-6898
(716) 631-6990 FAX
paul DOT deppe AT veridian DOT com


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