gentoo注音輸入法 - Linux

最近想嘗試一下gentoo
就看了Gentoo Handbook
開始一步一步安裝。
等gnome安裝完後要安裝輸入法
卻發現如下的訊息

# emerge ibus-chewing
\Calculating dependencies... done!

!!! All ebuilds that could satisfy "app-i18n/ibus-chewing" have been masked.
!!! One of the following masked packages is required to complete your request:
- app-i18n/ibus-chewing-1.2.0.20100125 (masked by: ~amd64 keyword)
- app-i18n/ibus-chewing-1.2.0.20091211 (masked by: ~amd64 keyword)
- app-i18n/ibus-chewing-1.2.0.20090917 (masked by: ~amd64 keyword)


For more information, see the MASKED PACKAGES section in the emerge
man page or refer to the Gentoo Handbook.


有找到masked的資訊，但是不管怎麼設定
還是沒辦法成功的安裝
以下是小弟設定的/etc/portage/package.unmask


=app-i18n/ibus-chewing-1.2.0.20100124



請問有版友可以指導一下嗎



謝謝

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