Hi Johann,
The commit email doesn't make it obvious, but the new code has been committed to to the nod branch, not the trunk.
Only for clarification: How is the nod-branch to be considered? Is it the working branch and only tested features get the way into the main branch? As far as I know the routing capabilities are merged to the main trunk now.
That's true and I was surprised to see the new support for routing from OSM files had been checked into a branch (rather than trunk) as the new code has little impact when --route is not being specified and doesn't affect the routing when the input is from a mp file. So, just in case it's useful, I have attached a patch of my latest code. It's relative to the current trunk (rather than the nod branch which actually contains most of it). It should support routable ferry routes. Cheers, Mark