Bug#783210: [PATCH] nscd_stat.c: make the build reproducible
Florian Weimer <fweimer@redhat.com> skribis:
> We still need the time-based approach if the build ID is not
> available, but I expect most distributions will have something like
> it.
FWIW in Guix we solve it by filling the ‘compilation’ array with a
substring of the installation prefix¹.
Since the installation prefix is something like
/gnu/store/5fx3vscv9pqjr1k0vyaqnpqlvvzl8rff-glibc-2.22, which comprises
a hash of all the source, build scripts, and dependencies used to build
it, we know that it uniquely identifies the result of this specific
glibc build.
The build ID should be a good approximation of this.
Ludo’.
¹ http://git.savannah.gnu.org/cgit/guix.git/tree/gnu/packages/base.scm#n603
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