[PATCH] Allow ./configure to explicitly set libgpg-error's build timestamp
Daniel Kahn Gillmor
dkg at fifthhorseman.net
Mon Sep 22 23:19:36 CEST 2014
On 09/22/2014 03:40 PM, Daniel Kahn Gillmor wrote:
> A group within Debian is working on making the archive rebuildable in
> a reproducible way, so that the compiled binary outputs are
> byte-for-byte identical when built for the same platform using the
> same toolchain. This is useful in providing auditability and
> corroboration for users of the operating system.
> libgpg-error is very close to reproducible except for embedding the
> build timestamp in the generated binary. This timestamp is set in
> config.h during ./configure.
> This patch allows an external build system to set this embedded
> timestamp explicitly, which appears to make the package build
> repeatably when ./configure is called with EXTERNAL_BUILD_TIMESTAMP
Of course, another reasonable approach would be to avoid embedding the
timestamp in the build at all.
What is the advantage of including the timestamp in the built executable?
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