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Date:	Tue, 25 Nov 2003 09:25:16 -0500 (Eastern Standard Time)
From:	Suresh Venkatasubramanian <suresh AT research DOT att DOT com>
To:	Bob E <achillea88 AT yahoo DOT com>
cc:	cygwin AT cygwin DOT com
Subject:	Re: ___getreent error when compiling OpenGL/SDL program using gcc
In-Reply-To:	<20031125120900.45258.qmail@web60002.mail.yahoo.com>
Message-ID:	<Pine.WNT.4.58.0311250924150.1680@euclid>
References:	<20031125120900 DOT 45258 DOT qmail AT web60002 DOT mail DOT yahoo DOT com>
X-X-Sender:	suresh AT bigmail DOT research DOT att DOT com
MIME-Version:	1.0

On Tue, 25 Nov 2003, Bob E wrote:

> Hello,
>  
> I have been trying to compile a SDL/OpenGL program. 
> The program works under linux, and I am able to get
> single-file OpenGL/SDL programs to compile and run
> with cygwin.  When linking multiple files however, I
> get this strange errors:
>  
> gcc  -g   view3ds.o gl_video.o sdl_event.o sdl_video.o
> object.o  -o view3ds -lgl
> ut32 -lopengl32 -lGLU32 -lopengl32 `sdl-config
> --cflags --libs` -lm
> view3ds.o(.text+0x94): In function `resizeWindow':
> /home/Bob/prog/sdl2/view3ds.c:37: undefined reference
> to `_gluPerspective'
> view3ds.o(.text+0x3ca): In function `DrawScene':
> /home/Bob/prog/sdl2/view3ds.c:93: undefined reference
> to `_gluErrorString'
> view3ds.o(.text+0x3d2):/home/Bob/prog/sdl2/view3ds.c:94:
> undefined reference to
> `___getreent'
> view3ds.o(.text+0x7a2): In function `main':
> /home/Bob/prog/sdl2/view3ds.c:160: undefined reference
> to `___getreent'
> view3ds.o(.text+0x7dc):/home/Bob/prog/sdl2/view3ds.c:167:
> undefined reference to
>  `___getreent'
> view3ds.o(.text+0x809):/home/Bob/prog/sdl2/view3ds.c:174:
> undefined reference to
>  `___getreent'
> view3ds.o(.text+0x841):/home/Bob/prog/sdl2/view3ds.c:183:
> undefined reference to
>  `___getreent'
>
>  
> I am using gcc 3.3.1
>  


I don't claim this as a fix, but the opengl readme states that the correct
order for the lib files is:

-lglut32 -lglu32 -lopengl32

which is slightly different to what you have. Can you try it that way and
see ?

Suresh Venkatasubramanian, Ph: 973 360 8951 (o)
Member, Technical Staff    Web: http://www.research.att.com/~suresh/
AT&T Shannon Labs

"The guitar is the ideal instrument for anyone who is able to love
loneliness." --Angelo Gilardino

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