LibRoadnav is an LGPL C++ library capable of downloading freely available vector street maps of US locations, plotting maps of US locations at a variety of scales, and finding the shortest path between two locations. It uses wxWidgets and runs on a variety of platforms, including Windows, Linux, Mac OS X, and FreeBSD.
Created attachment 94945 [details] libroadnav-0.15.ebuild ( update )
Wrong product.
InCVS, thanks Andrew.