Changes for Mac OSX build, sent in by Bob Kuehne

Make/makedefs

@@ -224,7 +224,10 @@ ifeq ($(OS),Darwin)
   LIB_EXT            = dylib
   QUICKTIME_LIB	    = -framework QuickTime
   TIFF_LIB	    = -ltiff
-
+  SRC_DIRS          = osg osgUtil osgDB osgGLUT osgPlugins Demos
+  PLUGIN_DIRS       = osg rgb lib3ds flt obj lwo txp bmp pic tga osgtgz tgz zip
+  DEMOS_DIRS        = hangglide osgbillboard osgcluster osgconv osgcopy osgcube osgimpostor\
+                       osgreflect osgscribe osgstereoimage osgtexture osgviews osgversion sgv
 endif
 
 #### Cygwin/Mingw specific definitions

src/osg/GLExtensions.cpp

@@ -62,10 +62,12 @@ void* osg::getGLExtensionFuncPtr(const char *funcName)
 {
 #if defined(WIN32)
    return wglGetProcAddress(funcName);
-#elif defined(macintosh)
-   return NULL;
 #else
+#if defined( __DARWIN_OSX__ )
+   static void *lib = dlopen("libGL.dylib", RTLD_LAZY);
+#else // all other unixes
    static void *lib = dlopen("libGL.so", RTLD_LAZY);
+#endif
    if (lib)
       return dlsym(lib, funcName);
    else

src/osgPlugins/quicktime/Makefile

@@ -1,9 +1,8 @@
 TOPDIR = ../../..
 include $(TOPDIR)/Make/makedefs 
 
-CXXFILES =\
-	ReaderWriterQT.cpp\
-	QTtexture.cpp\
+CXXFILES = ReaderWriterQT.cpp
+CFILES = QTtexture.c
 
 LIBS  += $(QUICKTIME) $(OSG_LIBS) $(OTHER_LIBS)