Disabling timestamps, was Re: [PATCH roland/Versions.def]....

[Brooks Moses <bmoses at google dot com>]

On 03/14/2014 01:28 PM, Carlos O'Donell wrote:
> I've built a pristine glibc, and a glibc with this patch.
>
> Installed both and compared.
>
> No real differences in installed files.
>
> I had to disable build-id's and use hexdump to rule out timestamp
> changes in executables. The static archives had only differences
> in their archive names because of the different install paths.

This suggests a related point -- we have a local patch to turn off the date 
stamp in csu/Makefile, as part of our process of doing repeatable builds.

Is there any interest in having this upstream?  The local patch is really 
trivial, but an upstream version would want a configure option and would 
need some additional pieces to ensure determinism (most notably, including 
"D" as an ar option, and presumably doing something with build-ids if one is 
using a GCC where they're normally enabled).

- Brooks