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Date:	Tue, 18 Mar 2003 10:49:57 +0000
From:	Paul Sargent <Paul DOT Sargent AT 3dlabs DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Header problem with OGL on Cygwin
Message-ID:	<20030318104957.GP32352@3dlabs.com>
References:	<3E75F5E6 DOT 8020803 AT 3dlabs DOT com> <5 DOT 2 DOT 0 DOT 9 DOT 0 DOT 20030317133951 DOT 0263e228 AT irispavp DOT igb DOT umontreal DOT ca>
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In-Reply-To:	<5.2.0.9.0.20030317133951.0263e228@irispavp.igb.umontreal.ca>
User-Agent:	Mutt/1.4i

Hi All,

I'm currently having some problems linking with OpenGL under cygwin. I was
hoping somebody who understands the system might be able to offer some
advice.

The problem I'm having is that when I try to link my object files together 
with "-lglut32 -lglu32 -lopengl32" I get messages stating that there are 
"undefined reference"(s) to "_glBegin", amonst other symbols.

Searching through the archives I've spotted a message stating that this 
means I'm compiling with the wrong headers (The symbols should be of the
form _glBegin AT 4'). It's at this point that I've lost the thread. My code
contains "#include <GL/glut.h>" and doing a 'find / -name glut.h' only shows
the one file located in /usr/include/GL.  Similarly doing the same find for
gl.h gives me one in /usr/include/GL and one in /usr/include/w32api/GL.

My compile command is "gcc -c <source file>"
My link    command is "gcc -o <exe name> <object files> -lglut32 -lglu32 
-lopengl32"

Am I missing something simple?

Thanks for any help you can provide

Paul
--
Paul Sargent
mailto: Paul DOT Sargent AT 3Dlabs DOT com

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