The ebuild references "${FILESDIR}/${P}-sch_generic-header.patch" but no such file exists. There is a wireguard-modules-1.0.20200413-sch_generic-header.patch there though, presumably from an earlier version. Reproducible: Always Actual Results: * Applying wireguard-modules-1.0.20200426-sch_generic-header.patch ... /var/tmp/portage/net-vpn/wireguard-modules-1.0.20200426/temp/environment: line 714: /var/tmp/portage/net-vpn/wireguard-modules-1.0.20200426/files/wireguard-modules-1.0.20200426-sch_generic-header.patch: No such file or directory
spec file in portage tree seems to be updated (renamed from ....0413... -> ...0426....) without testing.