It seems that the new home of sparsehash is https://github.com/sparsehash/sparsehash
A commit references this bug: Author: vd Date: Fri Sep 30 08:46:30 UTC 2016 New revision: 422969 URL: https://svnweb.freebsd.org/changeset/ports/422969 Log: devel/google-sparsehash: Upgrade to 2.0.3 and rename to devel/sparsehash * The project was moved from Google Code to GitHub (unbreak), hinted by [1] * Upgrade from 2.0.2 to 2.0.3 * Remove now unneeded patches * Remove the requirement for C++11 - the code does not need it * Use PREFIX instead of LOCALBASE as a destination directory PR: 213093 [1] Submitted by: Erik Nordstrom <erik@nordstroem.no> [1] Changes: head/MOVED head/devel/Makefile head/devel/google-sparsehash/ head/devel/sparsehash/ head/devel/sparsehash/Makefile head/devel/sparsehash/distinfo head/devel/sparsehash/files/
Adjusted to GitHub and upgraded to 2.0.3, thanks!