SCLF has originally been written by Walter C. Pelissero and vendored
into depot since it is a dependency of mime4cl. Upstream and depot version
may diverge.

Upstream Website: http://wcp.sdf-eu.org/software/#sclf
Vendored Tarball: http://wcp.sdf-eu.org/software/sclf-20150207T213551.tbz