Shebang reads as "#!/usr/bin/perl -w" so maybe `sh configure ...' should be used in the ebuild too.
https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=3fc5cbe8a00e617f0425e37d14df30227469b292 commit 3fc5cbe8a00e617f0425e37d14df30227469b292 Author: Aaron Bauman <bman@gentoo.org> AuthorDate: 2019-12-08 19:17:43 +0000 Commit: Aaron Bauman <bman@gentoo.org> CommitDate: 2019-12-08 19:19:24 +0000 sys-cluster/{cman-lib,dlm,dlm-lib} drop last-rited pkgs Signed-off-by: Aaron Bauman <bman@gentoo.org>