calculate convex hulls and related structures (reentrant shared library)

 Qhull computes convex hulls, Delaunay triangulations, halfspace
 intersections about a point, Voronoi diagrams, furthest-site
 Delaunay triangulations, and furthest-site Voronoi diagrams. It
 runs in 2-d, 3-d, 4-d, and higher dimensions.
 .
 This package contains the reentrant version of the shared C library.