The ebuild seems to be missing SRC_URI arrows to rename the distfile: v1.10.tar.gz
commit 7c8523a17174a82170fbffafec7cf01328edf784 Author: Angelo G. Del Regno <kholk11@gmail.com> Date: Sun May 28 11:51:55 2017 +0200 games-util/gtkevemon: Use correct distfile name Update SRC_URI to rename the distfile correctly.