From: Vincent Isambart <vincent.isambart@...>
Date: 2004-09-11T02:50:57+09:00
Subject: Re: OpenGL on MacOS X (again)

Hi,

The previous version of Ruby/OpenGL was not working with Ruby/GtkGLExt,  
only with GLUT. Here comes a better version of extconf.rb that will  
correct this problem. Forget the previous version - use this one ^o^

Vincent Isambart
#-------extconf.rb
require 'mkmf'

File.unlink('Makefile')      if File.exist?('Makefile')
File.unlink('Makefile.ogl')  if File.exist?('Makefile.ogl')
File.unlink('Makefile.glut') if File.exist?('Makefile.glut')

Dir.mkdir('GL') unless File.exist?('GL')
File.symlink('/System/Library/Frameworks/OpenGL.framework/Headers/ 
gl.h',  'GL/gl.h')   unless File.exist?('GL/gl.h')
File.symlink('/System/Library/Frameworks/OpenGL.framework/Headers/ 
glu.h', 'GL/glu.h')  unless File.exist?('GL/glu.h')
File.symlink('/System/Library/Frameworks/GLUT.framework/Headers/ 
glut.h',  'GL/glut.h') unless File.exist?('GL/glut.h')

$CFLAGS  = '-I. -I/System/Library/Frameworks/OpenGL.framework/Headers  
-I/System/Library/Frameworks/GLUT.framework/Headers'
$LDFLAGS = '-L/System/Library/Frameworks/OpenGL.framework/Libraries  
-lGL -lGLU'
$objs = ['glu.o', 'ogl.o', 'rbogl.o']
create_makefile("opengl")
File.rename('Makefile', 'Makefile.ogl')

$LDFLAGS = '-L/System/Library/Frameworks/OpenGL.framework/Libraries  
-framework GLUT -framework Foundation'
$objs = ['glut.o']
create_makefile("glut")
File.rename('Makefile', 'Makefile.glut')

modules = "glut.#{CONFIG['DLEXT']} opengl.#{CONFIG['DLEXT']}"

open('Makefile', 'w') {|f|
   v = $nmake ? '{$(srcdir)}' : ''
   f.write <<"MAKEFILE"
SHELL = /bin/sh
srcdir = #{$srcdir}
VPATH = $(srcdir)

all: #{modules}

opengl.#{CONFIG['DLEXT']}: #{v}rbogl.c #{v}ogl.c #{v}glu.c #{v}rbogl.h
	@echo Now Making opengl extend module
	@$(MAKE) -f Makefile.ogl

glut.#{CONFIG['DLEXT']}: #{v}glut.c
	@echo Now Making glut extend module
	@$(MAKE) -f Makefile.glut

clean:
	@$(MAKE) -f Makefile.ogl clean
	@$(MAKE) -f Makefile.glut clean

distclean:
	@$(MAKE) -f Makefile.ogl distclean
	@$(MAKE) -f Makefile.glut distclean

install: #{modules}
	@$(MAKE) -f Makefile.ogl install
	@$(MAKE) -f Makefile.glut install

site-install: #{modules}
	@$(MAKE) -f Makefile.ogl site-install
	@$(MAKE) -f Makefile.glut site-install
MAKEFILE
}