From owner-freebsd-hackers@FreeBSD.ORG  Mon Nov 15 11:56:36 2010
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From: Erik Cederstrand <erik@cederstrand.dk>
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To: Tom Evans <tevans.uk@googlemail.com>
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Cc: Giorgos Keramidas <keramida@ceid.upatras.gr>,
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Subject: Re: Deterministic builds?
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Den 15/11/2010 kl. 12.40 skrev Tom Evans:

> The important things for us are that given a binary, you should be
> able to easily reproduce the source environment that the binary was
> produced from, and any two binaries produced from the same sources
> should be identical.

I'm leaning towards not even recording the svn rev. within the binary. A =
commit only changing comments or style(9) would not change the bits of =
the binary, but the differing revision number would. A solution could be =
to have an external file, e.g. /etc/kernel-buildinfo and =
/etc/world-buildinfo, containing the output of "svn stat", "svn diff", =
src.conf, make.conf, SRCDIR and OBJDIR locations, the full =
buildworld/kernel command and whatever else could affect the build =
outcome.

Erik=

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