osgearth_mrt example not working with OSG 3.7.0 (interim version)

[jasonbeverage]

Using osg 3.7.0 and running osgearth_mrt gives me:

void StateSet::setGlobalDefaults() ShaderPipeline disabled. void StateSet::setGlobalDefaults() ShaderPipeline disabled. Warning: detected OpenGL error 'invalid enumerant' at after stateset.compileGLObjects in GLObjectsVisitor::apply(osg::StateSet& stateset) RenderStage::runCameraSetUp(), FBO setup failed, FBO status= 0x8cd6 Warning: RenderStage::runCameraSetUp(State&) Pbuffer does not support multiple color outputs. Warning: RenderStage::runCameraSetUp(State&) Pbuffer does not support multiple color outputs. Warning: RenderStage::runCameraSetUp(State&) Pbuffer does not support multiple color outputs. ContextData::incrementContextIDUsageCount(0) to 2 RenderStage::runCameraSetUp(), FBO setup failed, FBO status= 0x8cd6 Warning: RenderStage::runCameraSetUp(State&) Pbuffer does not support multiple color outputs. Warning: RenderStage::runCameraSetUp(State&) Pbuffer does not support multiple color outputs. Warning: RenderStage::runCameraSetUp(State&) Pbuffer does not support multiple color outputs. ContextData::incrementContextIDUsageCount(0) to 3