The developer renamed the tool from cv to progress, changing the homepage/github URL, when updating from 0.7.1 to 0.8 https://github.com/Xfennec/progress The latest available release is 0.9 (Aug 27th 2015) w/ download URL https://github.com/Xfennec/progress/archive/v0.9.tar.gz Current ebuild is for 0.4.1 (Lug 21st 2014), more than one year old. I've been successfully using self-compiled releases on x86 and x86_64 The rename has no effect on the existing ebuild, except for the HOMEPAGE variable (which, by the way, broke the current 0.4.1 ebuild).
Thanks for the report. Renamed and bumped: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=4688772208e0984c4e9bb17cbd6a98b67af9cde5