void GLAPIENTRY
_mesa_DebugMessageCallback(GLDEBUGPROC callback,
const void *userParam);
+void GLAPIENTRY
+_mesa_PushDebugGroup(GLenum source, GLuint id, GLsizei length,
+ const GLchar *message);
+void GLAPIENTRY
+_mesa_PopDebugGroup(void);
#ifdef __cplusplus
}