On Sun, Sep 11, 2016 at 03:38:04PM +0200, Baptiste Daroussin wrote:
> hi,
> For long we are planning to remove GNU rcs from base, after a failed attempt
> before FreeBSD 10.0. Let see where we are to be able to remove it from FreeBSD
> 12.
> GNU rcs is a GPLv2 software with newer version being GPLv3 preventing any
> updates/fixes.
> From previous discussions there were issues that has been raised in previous
> attempts:
> - ident(1) is still useful given we still have Keywords in our sources. It has
>   been replaced by a BSD Licensed version (enhanced to improve compatibility
>   with Subversion Keyword) for FreeBSD 11. So that tool will remain in base
>   after removal of GNU rcs.
> - etc-update uses merge(1) from GNU rcs, this has been changed in head to use
>   diff3 instead.
> - rc.subr allows to use rcs for the backup file functionality. This
>   functionality is off by default as such I plan to make a warning if rcs is 
> not
>   installed and recommand to install rcs from base (or if noone claim using 
> the
>   feature I will just remove the functionality and only keep the default
>   behaviour aka keep one backup copy).
> - people uses rcs to handle configuration files in /etc for example. for those
>   multiple compatible alternatives are available in ports:
>   * rcs57: a copy of the latest version of GNU rcs in base before removal
>     (GPLv2)
>   * rcs: latest GNU rcs version (GPLv3)
> I haven't gone the direction of importing OpenRCS (BSD licensed version from
> OpenBSD) as it needs way more work to be 100% compatible with latest version 
> of
> GNU rcs.
> How to proceed:
> - First turn off GNU rcs by default for a couple of month.
> - Totally remove GNU rcs if no blockers has been raised.
> Best regards,
> Bapt

I forgot to say freebsd-update uses merge(1) and which I will replaced with

Best regards,

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