Created attachment 584968 [details, diff] patch to ebuild At least on my system, sys-apps/sed-4.7 doesn't have an --inplace option It has to be replaced by -i .bak (e.g.) The ebuild has to be patch accordingly
Confirmed. I have sed 4.5 and the flag is in-place with a hyphen not just inplace (or the -I short form).
Sorry, that was a typo from me, which zlogene@gentoo.org already fixed with commit https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=9d7bb34fd3c77d878e30d87a8b65026e5809c24c .