Re: update on reproducible builds

[christos%zoulas.com@localhost (Christos Zoulas)]

On Dec 19, 12:28pm, martin%duskware.de@localhost (Martin Husemann) wrote:
-- Subject: Re: update on reproducible builds

| On Mon, Dec 19, 2016 at 12:19:51PM +0100, Thomas Klausner wrote:
| > This was already possible before -- you set MKREPRO=yes and
| > MKREPRO_TIMESTAMP to the seconds-since-epoch of that timestamp.
| 
| I fully fail to understand
| 
|  (a) the desire to keep the timestamps all identical (but that is
|      more a matter of taste or something)

Because we want keep the checksums of all the files identical. Since some
files (like tar files or random archives contain timestamps, this is impossible
without choosing a particular timestamp).

|  (b) why we need special cvs hacks to get this when the build cluster
|      already knows the cvs date stamp (and uses it apparently, as it is
|      in the uname of the crated kernels already)

This is the time the build cluster started a checkout, not the time of
the last checkin.

christos