From: Kilgallen@SpamCop.net (Larry Kilgallen)
Subject: Re: How to cache output of the compiler aka ccache
Date: 18 Mar 2005 21:25:02 -0600
Date: 2005-03-18T21:25:02-06:00 [thread overview]
Message-ID: <hn7L9qr3KgiS@eisner.encompasserve.org> (raw)
In-Reply-To: pJqdnQxLIP40rqbfRVn-uw@megapath.net
In article <pJqdnQxLIP40rqbfRVn-uw@megapath.net>, "Randy Brukardt" <randy@rrsoftware.com> writes:
> "Simon Wright" <simon@pushface.org> wrote in message
> news:x7vekeciwtj.fsf@smaug.pushface.org...
> ...
>> We had an interesting bug with 3.16a1 on Windows where compilations
>> ran slower if the compiler had been installed in the winter months
>> (outside daylight saving time) -- a feature involving the Windows
>> installer, I think; the timestamps in the library were all one hour
>> out.
>
> This is a bizarre Windows "feature". When daylight saving time changes, all
> of the time stamps on your existing files will change one hour. (If you
> don't believe me, check it out when the time changes.)
>
> If you have code the previously stored the time stamp somewhere (say in a
> dependency file), it will suddenly be off an hour, and thus will mismatch.
>
> Janus/Ada doesn't have the problem with the core runtime (since the source
> isn't supplied), but sometimes a daylight saving time change will force a
> rebuild of an entire project. I've never figured out a good solution, since
> the behavior is so odd.
It seems to me that one should instruct Windows that one is in a
place where Daylight Savings Time is not honored. To ask the
computer to go switching times away from reality is asking for
trouble.
next prev parent reply other threads:[~2005-03-19 3:25 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-17 18:54 How to cache output of the compiler aka ccache i-google-iasuhdkajsh
2005-03-17 19:40 ` Robert A Duff
2005-03-17 20:04 ` Ludovic Brenta
2005-03-17 21:27 ` Marius Amado Alves
2005-03-18 1:24 ` Ludovic Brenta
2005-03-18 2:08 ` Robert A Duff
2005-03-17 19:47 ` Ludovic Brenta
2005-03-18 19:22 ` Simon Wright
2005-03-18 20:04 ` Randy Brukardt
2005-03-18 22:10 ` Florian Weimer
2005-03-19 3:25 ` Larry Kilgallen [this message]
2005-03-18 6:58 ` i-google-iasuhdkajsh
2005-03-18 13:33 ` Robert A Duff
2005-03-18 14:01 ` Vinzent 'Gadget' Hoefler
2005-03-18 14:41 ` Florian Weimer
2005-03-18 15:08 ` Vinzent 'Gadget' Hoefler
2005-03-18 16:24 ` Florian Weimer
2005-03-21 8:16 ` Vinzent 'Gadget' Hoefler
2005-03-21 8:54 ` Florian Weimer
2005-03-21 11:26 ` Vinzent 'Gadget' Hoefler
2005-03-18 8:07 ` Martin Krischik
2005-03-18 18:50 ` i-google-iasuhdkajsh
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