Le mardi 25 août 2015 à 12:20 +0200, Andreas Bießmann a écrit : > On 08/25/2015 11:55 AM, Vagrant Cascadian wrote: > > 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 > > thanks for the pointer, normal builds work with that change.
I think we should get that patch merged so that it doesn't affect regular builds on non-GNU hosts. It is also relevant for the purpose it serves initially, too. -- Paul Kocialkowski, Replicant developer Replicant is a fully free Android distribution running on several devices, a free software mobile operating system putting the emphasis on freedom and privacy/security. Website: http://www.replicant.us/ Blog: http://blog.replicant.us/ Wiki/tracker/forums: http://redmine.replicant.us/
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