It’s a bit sad that Gentoo didn’t promote this more, but Gentoo users now have support for license-based masking.
What does this mean? Well, previously, Gentoo already supported various masking reasons (like stable versus staging – the x86 versus ~x86 saga, package.mask’ing – for security reasons or critical bugs, …). Now, a new feature is added: license masking.
By default, Portage accepts all non-EULA licenses. If a package uses a EULA license, you’ll get a failure message stating that the license is ‘masked’.
Now, what good does this do for users? Well, you can now ask Portage only to accept certain licenses (like @FSF-APPROVED, which is a list of all FSF-approved licenses) and deny the installation of others. Nice, isn’t it?
I’ve added information regarding package license states (and the global as well as per-package unmasking support through /etc/portage/package.license) to the Linux Sea document.
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