As per summary: test -d /var/tmp/portage/mail-client/nail-11.25-r3/image//usr/bin || mkdir -p /var/tmp/portage/mail-client/nail-11.25-r3/image//usr/bin /bin/install -c -s nail /var/tmp/portage/mail-client/nail-11.25-r3/image//usr/bin/nail make: /bin/install: Command not found make: *** [install] Error 127 note that /bin/install was removed in recent coreutils in favour of /usr/bin/install. I'm CCing BSD because on BSD install always was and is in /usr/bin too. The ebuild currently sets UCBINSTALL to /bin/install. It should instead use UCBINSTALL=$(type -p install).
Should be fixed in CVS. Thanks - ferdy