An ebuild for enotice which automates the installation is now available, thanks to MAL.
The current version of enotice is 0.2.9.1
Download enotice-0.2.9.1_alpha.tar.gz
0.2.5 - (LH) Changed references to "error" to "critical" which more accurately reflects the nature of ebuild reporting. Added man page. 0.2.6 - (LH) Fixed problem when PORT_ENOTICE_LEVEL was unset. Added sensible defaults for both PORT_ENOTICE_SORT and PORT_ENOTICE_LEVEL. 0.2.7 - (LH) Fixed error in file count when files have been purged or deleted. Eliminated automatic program termination if the file count at the PORT_ENOTICE_LEVEL is 0 but other notice files exist and are hidden. Added notification of the number of "hidden" enotices. Added delete range. Added a readline after the notice listing to prevent the display of the command menu from pushing the top of the last page of the listing off the screen. Added install script and profile.bashrc to the distribution. 0.2.8 - (LH) Made install script smarter and more informative 0.2.9 - (LH) Eliminated spurious "Notice n doesn't exist" messages when deleting a range of files. 0.2.9.1 - (MAL) Updated profile.bashrc to include support for the elog call, which has replaced einfo in portage.Please report bugs and make suggestions to Lindsay Haisley and/or Eldad Zack.