Gentoo's Bugzilla – Bug 668678app-emulation/virtualbox-guest-additions-5.2.18 - /var/tmp/portage/app-emulation/virtualbox-guest-additions-5.2.18/work/vboxguest/Makefile.include.header:99: *** The variable KERN_DIR must be a kernel build folder and end with /build without a trailingLast modified: 2018-10-17 12:28:53 UTC node [vulture]