Here is the improper way, which will either break your system or make it unstable if used sytemwide:
-The x86 variable should be changed depending on your achitecture (x64, ppc, ppc64, etc)
Now, here is the "correct" way to unmask packages.
- Edit or create the file "/etc/portage/package.keywords" -The file needs to be created if you have never accessed it before.
- Input the following, depending on the package. I'll use gnome-do as an example: "gnome-extra/gnome-do **"
echo "gnome-extra/gnome-do **" >> /etc/portage/package.keywordsThat's it!