Baked shadows from non-lightmap static objects?

In Unity 4 i lightmapped everything on my terrain scene. But with realtime shadows i am thinking of getting rid of lightmapping since things look so good u close. I'd like to keep the terrain lightmapped though so that it looks well shadowed at a distance.

I seems that objects not marked lightmap static wont cast shadows on terrain during the bake. But if i mark all the rocks etc lightmap static then they get baked with their own lightmaps, which isnt what i want.

Is there a way to just bake the terrain and have objects in the scene cast shadows into the bake without marking them as lightmap static?