Date: Thu, 31 May 2018 20:19:20 +0200 From: Dimitry Andric <dim@FreeBSD.org> To: Warner Losh <imp@bsdimp.com> Cc: Benjamin Kaduk <kaduk@mit.edu>, Gary Jennejohn <gljennjohn@gmail.com>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: ``make buildkernel'' fails when /usr/obj is empty Message-ID: <7464D18D-2879-4C2A-ADD3-BF84D80940BB@FreeBSD.org> In-Reply-To: <CANCZdfozqmA%2BQz77Yu4KDwD0NRH4AJ24XAhE6FuHz_4Ubf60Gg@mail.gmail.com> References: <20180531095222.399e7a37@ernst.home> <20180531095850.5845fd7a@ernst.home> <20180531160406.GD27985@kduck.kaduk.org> <32C087A4-1B67-4694-B769-16A347D4804E@FreeBSD.org> <CANCZdfozqmA%2BQz77Yu4KDwD0NRH4AJ24XAhE6FuHz_4Ubf60Gg@mail.gmail.com>
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--Apple-Mail=_B5567DE5-22B6-46B3-9C22-D2F4A1A551CC Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On 31 May 2018, at 20:11, Warner Losh <imp@bsdimp.com> wrote: >=20 > On Thu, May 31, 2018 at 11:47 AM, Dimitry Andric <dim@freebsd.org> = wrote: > On 31 May 2018, at 18:04, Benjamin Kaduk <kaduk@MIT.EDU> wrote: > > On Thu, May 31, 2018 at 09:58:50AM +0200, Gary Jennejohn wrote: > >> On Thu, 31 May 2018 09:52:22 +0200 > >> Gary Jennejohn <gljennjohn@gmail.com> wrote: ... > > Whatever happened to the "run buildworld or kernel-toolchain before > > buildkernel" requirement? >=20 > That is still a requirement, yes. Otherwise, you might have outdated > toolchain components are in your /usr/obj. >=20 > Usually you can get away without doing that, and now that clang is the = toolchain that's rebuilt (and that's not fast) people try to get away = with it more and more... Actually clang doesn't get updated *that* often, but there is a minor snag that one of llvm's config files = (lib/clang/include/llvm/Config/config.h) includes <osreldate.h>, so each time __FreeBSD_version is bumped, quite a lot of dependencies get triggered... The version is only used for two checks: #if __FreeBSD_version >=3D 1000052 /* Define to 1 if you have the `backtrace' function. */ #define HAVE_BACKTRACE TRUE and: /* Define to 1 if you have the `futimens' function. */ #if __FreeBSD_version >=3D 1100056 #define HAVE_FUTIMENS 1 #endif Maybe the first check could be dropped, assuming that backtrace() is always available, but I'm not sure about futimens(). Is there any supported version of FreeBSD left that does *not* have it? -Dimitry --Apple-Mail=_B5567DE5-22B6-46B3-9C22-D2F4A1A551CC Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.2 iF0EARECAB0WIQR6tGLSzjX8bUI5T82wXqMKLiCWowUCWxA8qAAKCRCwXqMKLiCW o+FWAJ9C7rLpduS2kGwWPnviVa90f9MvBgCeKMo8tmVLyOwr65qbNmeovmN9dR8= =Nclm -----END PGP SIGNATURE----- --Apple-Mail=_B5567DE5-22B6-46B3-9C22-D2F4A1A551CC--
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