I recently updated an old system. When the world update tried to install net-misc/netifrc-0.5.1 the installation failed due to a file collision: > * Detected file collision(s): > * > * /lib/udev/net.sh > * /lib/udev/rules.d/90-network.rules > * > * Searching all installed packages for file collisions... > * > * Press Ctrl-C to Stop > * > * sys-fs/udev-init-scripts-26:0::gentoo > * /lib/udev/net.sh > * /lib/udev/rules.d/90-network.rules > * If net-misc/netifrc would have set a blocker emerge would have re-ordered merge order and upgrade path would be smoother.
Done via https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=3d9602bfc8ec715934645250101e0926e9bcd57c