In the info manual of automake 1.10, the link from the node "VPATH Builds":
(*note `VPATH': Search Path for All Prerequisites: (make)General Search.)doesn't work, although I have the make info documentation installed, and it has a node called "General Search". The error I get from info is:
Cannot find node `Search Path for All Prerequisites: (make)General Search'. -- http://rrt.sc3d.org/ | maxim, n. wisdom for fools