[PATCH] KConfig: Rewrite globals only if modified

[Oswald Buddenhagen]

On Mon, Feb 25, 2008 at 11:02:23PM +0100, David Faure wrote:
> I guess that means "testing that the global config isn't rewritten
> when not necessary, by comparing its timestamp from before and after
> the write operation". That's the best way to ensure it won't ever get
> broken again, by future changes.
> 
a signature i used quite a time ago seems relevant to that statement:

nothing is fool-proof to a sufficiently talented fool.

or we could just use good ol' murphy's law.

in that case it means that if you introduce that regression test,
somebody will surely introduce a "timestamp preserving mode" which will
be accidentally entered exactly at the point when this regtest is
executed, just in time to cover up the breakage introduced one commit
later.

:-D

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