From: Bill Kelly <billk@...>
Date: 2001-09-15T02:02:01+09:00
Subject: [ruby-talk:21199] Re: OpenGL under windows


From: "Anthony Cagle" <acagle@subimo.com>
>
> Hello.  I have been trying without success to successfully compile the
> Ruby_OpenGL interface to run under Windows.  I have tried all three of the
> distributions from the RAA (31, 32 and 32a).

Hi, I have rubygl 0.32a running under WinNT and 2K with cygwin 2.78.2.9 and
ruby 1.6.2.  (It compiled really easily for me.)

> The first two seem unable to locate the native opengl modules, while 32a
> locates them, but make produces the listing appended below.
> 
[...]
> glu.c: In function `InitializeGLU':
> glu.c:1479: `GLU_BEGIN' undeclared (first use in this function)
> glu.c:1479: (Each undeclared identifier is reported only once
> glu.c:1479: for each function it appears in.)
> glu.c:1480: `GLU_VERTEX' undeclared (first use in this function)
[...]

Hmm, those constants on my system here are defined in:
cygwin/usr/include/GL/glu.h

Does your glu.h not contain them, or . . .? is there possibly another
(erroneous) glu.h that somehow made it into the include path before
the one in usr/include/GL . . . ?  Just wild guesses. . .  

Hope this helps - also, though it doesn't sound related to this probably,
I've found problems when the ruby cygwin.dll gets out of sync with the
one in the cygwin installation . . .

Regards,

Bill