dcraw 9.17 is available at http://www.cybercom.net/~dcoffin/dcraw/archive/dcraw-9.17.tar.gz Just renamed media-gfx/dcraw-9.12 and it emerged successfully. It also seems to be working well: my previous unsupported camera is now supported.
*** Bug 450480 has been marked as a duplicate of this bug. ***
+*dcraw-9.17 (24 Jan 2013) + + 24 Jan 2013; Michael Weber <xmw@gentoo.org> +dcraw-9.17.ebuild: + Version bump (bug 450482), maintainer timeout. +