Mail Archives: cygwin/2004/02/19/11:13:18
Philip Lamb <phil at rave dot co dot nz> wrote:
>Hello,
>
>The changes to <GL/glu.h> in w32api-2.5 expose a problem with the glut.h
>in opengl-1.1.0-7 package, file <GL/glut.h>. The problem is that whcar_t
>is now required to be defined by /usr/include/w32api/GL/glu.h, however
>glut.h does not do so.
I think you meant glu.h in the above line.
>I'm not sure where the _best_ place to put a definition is; for myself I
>have put it at line 153 of glut.h. Others may wish to do so too, and
>perhaps a patch to the opengl package is in order if other more
>knowledgeable folks concur.
No glut function uses wchar_t in any form, so IMO it does _not_ belong
there. The only thing GL-related that uses wchar_t is
gluErrorUnicodeStringEXT, an M$-specific extension to GLU; from w32api-2.5
usr/include/w32api/GL/glu.h :
GLAPI const wchar_t * APIENTRY gluErrorUnicodeStringEXT (GLenum error);
From w32api-2.5 announcement:
>2003-09-24 Dimitri Papadopoulos <papadopo AT users DOT sourceforge DOT net>
>
> * include/GL/glu.h (gluErrorUnicodeStringWIN): Add macro
> function. MSDN suggests using gluErrorUnicodeStringWIN
> instead of gluErrorString, as it allows both ANSI and Unicode
> error strings.
>
> * include/GL/glu.h (gluErrorUnicodeStringEXT): Make the
> returned pointer const for consistency reasons.
>
>2003-09-24 Dimitri Papadopoulos <papadopo AT users DOT sourceforge DOT net>
>
> * include/GL/glu.h (gluErrorUnicodeStringEXT): Add function.
> Function exists in glu32.def but is undocumented on MSDN.
> A Google search came up with this declaration.
>
>2003-09-24 Dimitri Papadopoulos <papadopo AT users DOT sourceforge DOT net>
>
> * include/GL/glu.h: Rewritten from scratch. Started from GLU 1.3
> headers from OpenGL Sample Implementation. Windows ships with
> GLU 1.2 so some constants and functions were removed. Then some
> typedef's and function declarations were reworked to look like
> the previous GL/glu.h.
So IMO, your patch below should be applied to glu.h by the w32api maintainers.
>153,156d152
>< # ifndef _WCHAR_T_DEFINED
>< typedef unsigned short wchar_t;
>< # define _WCHAR_T_DEFINED
>< # endif
>The only other workaround I can see is adding an #include <windows.h>
>before every #include <GL/glut.h> which is neither elegant nor in the
>spirit of GLUT's philosophy of hiding platform dependencies.
>--
>Philip Lamb
>phil AT rave DOT co DOT nz
I modified the above line (was a plain email adresss). Beware that Spam
bots search lists like this one for new targets for their junk.
I CC'd the MingW list about this issue.
André Bleau, Cygwin's OpenGL package maintainer.
Please address all questions and problem reports about Cygwin's OpenGL
package to cygwin at cygwin dot com .
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