On 2015-08-25, Andreas Bießmann 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 <cont...@paulk.fr> >> >> 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.pack...@gmail.com> http://lists.denx.de/pipermail/u-boot/2015-August/221429.html live well, vagrant
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