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From: Marcell Fulop
Subject: Re: [Bug-gnubg] GNUBG ON MACOS HIGH SIERRA
Date: Sun, 10 Dec 2017 17:18:07 +1100

Hi Philippe,

Thanks for the input. It seems you are right regarding the glew Homebrew package. When installed and GLU_LIBS and GLU_CFLAGS are set, configure says "checking for GLU... yes" and succeeds with --with-board3d.

Trying with the OpenGL shipped with macOS High Siearra (/System/Library/Frameworks/OpenGL.framework), and after fixing various other dependencies, make fails after producing a bunch of errors like this:

In file included from inc3d.h:44:0,
                 from font3d.c:25:
/System/Library/Frameworks/OpenGL.framework/Versions/A/Headers/glu.h:268:23: note: declared here
 extern GLUtesselator* gluNewTess (void) OPENGL_DEPRECATED(10_0, 10_9);
font3d.c:543:64: error: invalid conversion from 'void (*)(GLenum, Mesh*) {aka void (*)(unsigned int, _Mesh*)}' to 'GLvoid (*)() {aka void (*)()}' [-fpermissive]
     gluTessCallback(tobj, GLU_TESS_BEGIN_DATA, GLUFUN(tcbBegin));

I don't have any background in OpenGL just wandering what may be happening here that the signature defined in glu.h (in macOS OpenGL) is different from what is expected in gont3d.c?

I realise it isn't going to work w/o some porting outlined in the linked post...

On Sat, Dec 9, 2017 at 9:05 AM, Philippe Michel <address@hidden> wrote:
On Fri, Dec 08, 2017 at 06:13:00PM +1100, Marcell Fulop wrote:

> I could only build w/o board3d, it gave me a weird error message about not
> finding GTK when configuring with --with-board3d, but w/o it, it just
> builds with GTK fine. Any clues to this one?
> $ ./configure --with-board3d
> ...
> checking for GTK... yes
> checking for GTKGLEXT... yes
> ...
> checking GL/glx.h usability... no
> checking GL/glx.h presence... no
> checking for GL/glx.h... no
> configure: error: board3d requested but gtk or gtkglext not found

It looks like the build finds the gtk and gtkgkext libraries, but not
those for glx (and the final error message is wrong and confusing).

GLX is GL libraries for X but as far as I can read, MacOS High Sierra
use Wayland (an aspiring replacement for X) for graphics. Probably the
problem is there, for your build and for those trying to use the old
binary packages as well. The article at
http://www.tarnyko.net/en/?q=node/41 , for instance, summarize the

For your build, looking at the brew packages list (but I don't have a
Mac to check), maybe installing the glew package would help. Or, looking
at it from the other side, changing gnubg's 3d code to support GL
natively on Wayland instead.

For the old packages, maybe there is some optional compatibility layer,
on merely some settings, available on High Sierra and needed to allow
X applications to display on its Wayland server ?

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