From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vagrant Cascadian Date: Tue, 25 Aug 2015 11:55:08 +0200 Subject: [U-Boot] [Reproducible-builds] [U-Boot, v2] Reproducible U-Boot build support, using SOURCE_DATE_EPOCH In-Reply-To: <55DC2C19.1000809@gmail.com> References: <1437929295-9642-1-git-send-email-contact@paulk.fr> <20150728150049.GP25532@bill-the-cat> <55DC2C19.1000809@gmail.com> Message-ID: <87io83g0ar.fsf@aikidev.net> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 2015-08-25, Andreas Bie?mann wrote: > On 07/28/2015 05:00 PM, Tom Rini wrote: >> On Sun, Jul 26, 2015 at 06:48:15PM +0200, Paul Kocialkowski wrote: >>> In order to achieve reproducible builds in U-Boot, timestamps that are defined >>> at build-time have to be somewhat eliminated. The SOURCE_DATE_EPOCH environment >>> variable allows setting a fixed value for those timestamps. >>> >>> Simply by setting SOURCE_DATE_EPOCH to a fixed value, a number of targets can be >>> built reproducibly. This is the case for e.g. sunxi devices. >>> >>> However, some other devices might need some more tweaks, especially regarding >>> the image generation tools. >>> >>> Signed-off-by: Paul Kocialkowski >> >> Applied to u-boot/master, thanks! > > This commit breaks build on non GNU hosts (like OS X and persumably > other *BSD hosts). Before, those hosts where supported, so for me this > has to be fixed for 2015.10 > > We need a) some mechanism to search for the GNU date variant or b) some > wrapper to provide the correct output on those host machines. > > I vote for a), it is acceptable to have the GNU date available but we > should error on 'no GNU date available'. Furthermore we need to have the > date command exchangeable by e.g. gdate, gnudate, ... maybe with full path. There was a proposed patch which only uses the GNU date extensions if SOURCE_DATE_EPOCH environment variable is set, would this sufficiently address your concerns, at least for the short term? Message-Id: <1438337042-30762-1-git-send-email-judge.packham@gmail.com> http://lists.denx.de/pipermail/u-boot/2015-August/221429.html live well, vagrant -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 818 bytes Desc: not available URL: