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Re: Please test gzip -9n - related to dpkg with multiarch support

On 07.02.2012 18:07, Joey Hess wrote:
> Neil Williams wrote:
>> I'd like to ask for some help with a bug which is tripping up my tests
>> with the multiarch-aware dpkg from experimental - #647522 -
>> non-deterministic behaviour of gzip -9n.
> pristine-tar hat tricks[1] aside, none of gzip, bzip2, xz are required
> to always produce the same compressed file for a given input file, and I
> can tell you from experience that there is a wide amount of variation. If
> multiarch requires this, then its design is at worst broken, and at
> best, there will be a lot of coordination pain every time there is a
> new/different version of any of these that happens to compress slightly
> differently.

This seems to be a rather common problem as evindenced by e.g.


In Ubuntu they started to work-around that by excluding random files
from being compressed. So far I refused to add those hacks to the Debian
package as this needs to be addressed properly.


Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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