From Mike Weiblen,

"updates for GLSL core integration:
Code compiles and runs on win32.
Basic functionality of Program and Shader in place.
Program derived from StateAttribute.
Uniform value propagation is not yet functional (in development)
Includes some patches by Nathan Cournia.
includes example testcase to demo use of new classes."

include/osg/StateAttribute

@@ -184,6 +184,9 @@ class SG_EXPORT StateAttribute : public Object
 
             // osgNVParse
             OSGNVPARSE_PROGRAM_PARSER,
+
+            /// core GLSL support
+            PROGRAM
         };
         
         /** Simple pairing between an attribute type and the member within that attribute type group.*/