Como instalar o BOINC pelo emerge?

Calculate Português
1

Já tentei usar o emerge para instalar o BOINC porém ele precisa de uns passos adicionais que eu não não assimilei o procedimento. Aqui estão as mensagens mostradas pelo emerge:

calculate BOINC # emerge boinc

 * IMPORTANT: config file '/etc/portage/package.keywords/custom' needs updating.
 * See the CONFIGURATION FILES section of the emerge
 * man page to learn how to update config files.
Calculating dependencies... done!
[ebuild  N     ] app-text/docbook2X-0.8.8-r4  USE="{-test}" 
[binary  N     ] app-eselect/eselect-wxwidgets-20140423 
[binary  N     ] sys-apps/paxctl-0.9 
[binary  N     ] net-libs/webkit-gtk-2.4.9-r200  USE="X egl gstreamer introspection jit opengl spell webgl (-aqua) -coverage -debug -geoloc -gles2 -libsecret {-test}" 
[binary  N     ] x11-libs/wxGTK-3.0.2.0-r1  USE="X gstreamer libnotify opengl sdl tiff webkit (-aqua) -debug -doc" 
[ebuild  N    ~] sci-misc/boinc-7.4.42-r1  USE="X -cuda -static-libs" 

The following keyword changes are necessary to proceed:
 (see "package.accept_keywords" in the portage(5) man page for more details)
 # required by boinc (argument)
=sci-misc/boinc-7.4.42-r1 ~amd64

Use --autounmask-write to write changes to config files (honoring
CONFIG_PROTECT). Carefully examine the list of proposed changes,
paying special attention to mask or keyword changes that may expose
experimental or unstable packages.
calculate BOINC #
2

Hi Gilberto,

 # emerge -a boinc

Local copy of remote index is up-to-date and will be used.

These are the packages that would be merged, in order:

Calculating dependencies... done!
[binary  N     ] dev-perl/XML-NamespaceSupport-1.110.0-r1 
[binary  N     ] app-eselect/eselect-wxwidgets-20140423 
[binary  N     ] sys-apps/paxctl-0.9 
[binary  N     ] dev-perl/XML-SAX-Base-1.80.0-r1 
[binary  N     ] dev-perl/XML-SAX-0.990.0-r1 
[binary  N     ] net-libs/webkit-gtk-2.4.9-r200  USE="X egl gstreamer introspection jit opengl spell webgl (-aqua) -coverage -debug -geoloc -gles2 -libsecret {-test}" 
[binary  N     ] x11-libs/wxGTK-3.0.2.0-r1  USE="X gstreamer libnotify opengl sdl tiff webkit (-aqua) -debug -doc" 
[binary  N     ] dev-perl/XML-LibXML-2.12.100  USE="{-test}" 
[ebuild  N     ] app-text/docbook2X-0.8.8-r4  USE="{-test}" 
[ebuild  N    ~] sci-misc/boinc-7.4.42-r1  USE="X -cuda -static-libs" 

The following keyword changes are necessary to proceed:
 (see "package.accept_keywords" in the portage(5) man page for more details)
 # required by boinc (argument)
=sci-misc/boinc-7.4.42-r1 ~amd64

Would you like to add these changes to your config files? [Yes/No]

Enter “Yes”, then

dispatch-conf

Enter “u” (use new)

After this package can be installed.

3

Creio que é so colocar isso =sci-misc/boinc-7.4.42-r1 ~amd64 no package.keywords, parece que é só o que falta.