在Gentoo中使用因License被mask的包

今天更新了GENTOO，发现virtualbox-bin有更新，但却被mask了，把virtualbox-bin添加到/etc/portage/package.unmask也不起

作用：

!!! All ebuilds that could satisfy "app-emulation/virtualbox-bin" have been masked.

!!! One of the following masked packages is required to complete your request:

- app-emulation/virtualbox-bin-3.0.10 (masked by: PUEL license(s))

A copy of the 'PUEL' license is located at '/usr/portage/licenses/PUEL'.

For more information, see the MASKED PACKAGES section in the emerge

man page or refer to the Gentoo Handbook.

Google了一下，发现这个是因为License而被mask，解决方法有二：

一是在/etc/make.conf里面加入下面一行：

ACCEPT_LICENSE="PUEL"

二是在etc/portage/package.license里面添加下面的一行就可以了：

app-emulation/virtualbox-bin PUEL