Adding an "only-free" option to the ports system

[Scot Hetzel]

On Sun, Oct 19, 2014 at 11:35 PM, Martin Hanson
<greencoppermine at yandex.com> wrote:
> Hi
>
> This is a suggestion.
>
> Would it not be possible to add a feature to the ports system which
> enables the user to choose to avoid non Open Source ports?
>

The feature already exists, see /usr/ports/Mk/bsd.licenses.mk and
bsd.licenses.db.mk

# LICENSES_ACCEPTED - Accepted licenses.
# LICENSES_REJECTED - Rejected licenses.
# LICENSES_GROUPS_ACCEPTED - Accepted license groups.
# LICENSES_GROUPS_REJECTED - Rejected license groups.

Note: not all ports list which license they support.

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