Re: lablgtk2 + lablgl + native code on Mac

On Fri, Jul 11, 2008 at 11:51:28AM -0700, Jeffrey Scofield wrote:
> Folks:
> 
> I'm having a little trouble building a native code executable
> for lablgtk2 + lablgl on my Mac (Intel, Mac OS X 10.5.4).  If
> anybody has gotten this to work, could you describe what you did?
> Bytecode executables work fine after a little trial and error
> with the link step.

Hello Jeffrey,

here's a simple build script:

MLLIBS=/opt/godi/lib/ocaml
GL="$MLLIBS/pkg-lib/lablGL"
EXT="$MLLIBS/site-lib/extlib"
OSX_GL_DYLIB="-dylib_file /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib:\
/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib"

ocamlopt -I $EXT -I +lablgtk2 -I $GL -ccopt "$OSX_GL_DYLIB" -o glplot \
extLib.cmxa lablgtk.cmxa lablgl.cmxa lablgtkgl.cmxa gtkInit.cmx glplot.ml


> I have gotten native executables to work for lablgl alone, but
> they are for the native GUI.  It seems that lablgtk2 needs to
> work on top of X, which is confusing things (at least for me).
> I would be happy with either the native Mac GUI or X interface.

you firts must compile gtkglarea 1.99 and then configure/rebuild lablgtk2 to
enable gtkglarea support.

I've yet been able to bypass the OSX X-Window layer using:
http://developer.imendio.com/projects/gtk-macosx
I was not able to compile gtkglarea-1.99 against gtk-macosx, and given
up for now.

> The main difficulty (I think) is in some kind of Apple problem
> with the OpenGL libraries.  There is a mysterious workaround that
> works for lablgl, but I can't see how to apply it to this new
> situation.

maybe it's this you're refering:

http://developer.apple.com/qa/qa2007/qa1567.html

regards.

-- 
Philippe Strauss
http://philou.ch