Thank you, thats good news.
I found where to define CC_ENABLE_BOX2D_INTEGRATION, but now im running into another issue, could be the build
In the physicssprite class i'm getting a "no viable =" error for this line
// Rot, Translate Matrix
_transform = AffineTransformMake( c * _scaleX, s * _scaleX, -s * _scaleY, c * _scaleY, x, y );
cocos2dx 3.0 has embed box2d and chipmunk in itself.
You will find :
No need to create a box2d project