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Date:      Fri, 23 Oct 2015 16:06:05 -0500
From:      Mark Linimon <linimon@lonesome.com>
To:        Conrad Meyer <cem@FreeBSD.org>
Cc:        NGie Cooper <yaneurabeya@gmail.com>, "svn-src-head@freebsd.org" <svn-src-head@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "src-committers@freebsd.org" <src-committers@freebsd.org>
Subject:   Re: svn commit: r289773 - in head: sbin/sysctl sys/kern sys/sys
Message-ID:  <20151023210604.GA12348@lonesome.com>
In-Reply-To: <CAG6CVpW6W%2BDu0kgmgUnbU1tyXOxZ54C7Op6wRX9=i9bhipH6qQ@mail.gmail.com>
References:  <201510222303.t9MN37D2093845@repo.freebsd.org> <CAGHfRMCSjzC5FCk9cd8At=Q%2BDtQkXvYVsq3tfQ_aMPSVLZpqnQ@mail.gmail.com> <CAG6CVpW6W%2BDu0kgmgUnbU1tyXOxZ54C7Op6wRX9=i9bhipH6qQ@mail.gmail.com>

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On Fri, Oct 23, 2015 at 08:09:35AM -0700, Conrad Meyer wrote:
> What is __FreeBSD_version and why would it be bumped?

__FreeBSD_version was introduced in the following commit:

  https://svnweb.freebsd.org/base/head/sys/sys/param.h?r1=34924&r2=36260

where it has been ever since:

  https://svnweb.freebsd.org/base/head/sys/sys/param.h?view=log

This variable exists to tell the Ports Collection, among others,
that "something has changed that may require you to patch and/or
recompile."

The historical values are documented in

  https://www.freebsd.org/doc/en/books/porters-handbook/versions.html#freebsd-versions-table

Your mentor should have shown you this information.

mcl



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