Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sources.redhat.com/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
Message-Id: <200311031609.hA3G9kZ17540@bigmail.research.att.com>
From: suresh AT research DOT att DOT com
To: Andre Bleau <bleau AT igb DOT umontreal DOT ca>, cygwin AT cygwin DOT com
Subject: Re: OpenGL and Cygwin
Date: Mon, 03 Nov 2003 11:14:35 -0500


> >My g++ command line is
> >
> >g++ -mno-cygwin .... -lglut32 -lglu32 -lopengl32
> >
> >and a cygcheck on my exe file indicated that the glut file being linked
> >is my local copy that I got from nvidia,
> 
> Can you tell us why you are using GLUT from NVDIA instead of GLUT from 
> Cygwin's OpenGL package?

The reason I was using Nvidia's glut is because they have a more recent 
version of it (glut 3.7 I believe) than the stated version that cygwin 
provides. I recognize that this may cause weird unsupported problems, so I 
tried both versions, and get the same behaviour (success/failure) 
whichever one I use.

As for using extgl to do dynamic loading, that works fine: I now can 
successfully compile my code. It still doesn't run :), but given the 
complexity of the program I am running, I am not sure where exactly the 
problem is or if it is a cygwin error. The error itself comes from cygwin: 
the error message states:

61 [unknown (0x48)] ? 3804 cygheap_fixup_in_child: Couldn't reserve space
for cygwin's heap (0x61600000 <0x0>) in child, Win32 error 487

and follows by giving some state info about the stack etc. 
 
As I said, I don't quite know if this is my problem or cygwin's. All I 
have to go on is that the same code works under linux and g++. I will play 
around with some simpler versions of the code: if this error message comes 
from some familiar mistake that I'm making, I'd be grateful to hear it. 



--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/