With USE=cube on, this package fails at the mv command phase. Otherwise only the README is installed. In multilib_src_install, you call default. This will not install anything and only documentation is completed. Instead of default, it should be cmake-utils_src_install so that what cmake built can be installed from the respective build directory.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=10e797eecd4c792cf33defbdc3b12f875868067c commit 10e797eecd4c792cf33defbdc3b12f875868067c Author: Nick Sarnie <sarnex@gentoo.org> AuthorDate: 2018-08-29 01:18:00 +0000 Commit: Nick Sarnie <sarnex@gentoo.org> CommitDate: 2018-08-29 01:18:00 +0000 dev-util/vulkan-tools: Do not call default in cmake multilib Fixes: https://bugs.gentoo.org/664714 Package-Manager: Portage-2.3.48, Repoman-2.3.10 dev-util/vulkan-tools/vulkan-tools-1.1.77.0-r1.ebuild | 2 +- dev-util/vulkan-tools/vulkan-tools-9999.ebuild | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)