Current homepage point to nothing: http://pantransit.reptiles.org/prog/ A real ghost library without any available homepage apparently. Perhaps a link to some archive xli README could be used for it, in example: ftp://ftp.ibiblio.org/pub/Linux/apps/graphics/viewers/X/xli-1.16.README
This is fixes in a newer revision. + 03 Apr 2014; Tom Wijsman <TomWij@gentoo.org> +xli-1.17.0-r5.ebuild: + [QA] Revision bump. EAPI 5. src_unpack --> src_prepare. Removed extra die's. + Updated HOMEPAGE; fixes bug #427696, reported by Arvydas Sidorenko. Support + user's CC and LDFLAGS; fixes bug #332717, reported by Diego. Merged these + changes with the contribution by Michael Mair-Keimberger (iamnr3). Thank you very much for reporting.
Took almost 2 years. Way to go ^^