Well, since portage was designed with masked ebuilds in mind I think there should be a built-in switch for emerge to automatically add ~arch to your ACCEPT_KEYWORDS variable an thus avoid always typing the ACCEPT-KEYWORDS="~arch" emerge thingie...
Created attachment 14105 [details, diff] Patch for emerge to add the required functionality This adds --masked or -m to the list of options which appends("~"+portage.settings["ACCEPT_KEYWORDS"]) to portage.groups, so that the instable flag is also searched for.
Created attachment 14106 [details, diff] This patch just adds an explanation in emerge --help
*** This bug has been marked as a duplicate of 14741 ***