The patch files/udevil-0.2.8-man.patch used by the sys-apps/udevil-0.3.0 ebuild is missing.
$ ebuild udevil-0.3.0.ebuild prepare Appending /newaches/gentoo/cvs/gentoo-x86 to PORTDIR_OVERLAY... * udevil-0.3.0.tar.xz SHA256 SHA512 WHIRLPOOL size ;-) ... [ ok ] * checking ebuild checksums ;-) ... [ ok ] * checking auxfile checksums ;-) ... [ ok ] * checking miscfile checksums ;-) ... [ ok ] * Adding group 'plugdev' to your system ... * - Groupid: next available >>> Unpacking source... >>> Unpacking udevil-0.3.0.tar.xz to /var/tmp/portage/sys-apps/udevil-0.3.0/work >>> Source unpacked in /var/tmp/portage/sys-apps/udevil-0.3.0/work >>> Preparing source in /var/tmp/portage/sys-apps/udevil-0.3.0/work/udevil-0.3.0 ... * Applying udevil-0.2.8-flags.patch ... [ ok ] * Cannot find $EPATCH_SOURCE! Value for $EPATCH_SOURCE is: * * /newaches/gentoo/cvs/gentoo-x86/sys-apps/udevil/files/udevil-0.2.8-man.patch * ( udevil-0.2.8-man.patch ) * ERROR: sys-apps/udevil-0.3.0 failed (prepare phase): * Cannot find $EPATCH_SOURCE! * * Call stack: * ebuild.sh, line 85: Called src_prepare * environment, line 2861: Called epatch '/newaches/gentoo/cvs/gentoo-x86/sys-apps/udevil/files/udevil-0.2.8-flags.patch' '/newaches/gentoo/cvs/gentoo-x86/sys-apps/udevil/files/udevil-0.2.8-man.patch' * environment, line 1491: Called epatch '/newaches/gentoo/cvs/gentoo-x86/sys-apps/udevil/files/udevil-0.2.8-man.patch' * environment, line 1516: Called die * The specific snippet of code: * die "Cannot find \$EPATCH_SOURCE!"; * * If you need support, post the output of `emerge --info '=sys-apps/udevil-0.3.0'`, * the complete build log and the output of `emerge -pqv '=sys-apps/udevil-0.3.0'`. * The complete build log is located at '/keeps/gentoo/emergelogs/wieneke/sys-apps:udevil-0.3.0:20120721-151421.log'. * For convenience, a symlink to the build log is located at '/var/tmp/portage/sys-apps/udevil-0.3.0/temp/build.log'. * The ebuild environment file is located at '/var/tmp/portage/sys-apps/udevil-0.3.0/temp/environment'. * Working directory: '/var/tmp/portage/sys-apps/udevil-0.3.0/work/udevil-0.3.0' * S: '/var/tmp/portage/sys-apps/udevil-0.3.0/work/udevil-0.3.0'
thanks that was a beta-patch and should not have gone into the tree-ebuild removed: + 21 Jul 2012; Julian Ospald <hasufell@gentoo.org> udevil-0.3.0.ebuild: + fix bug 427424 +