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To: gentoo-dev@lists.gentoo.org
From: Michael Palimaka <kensington@gentoo.org>
Subject: [gentoo-dev] Re: On the good usage of subslots
Date: Sun, 10 Feb 2013 01:09:38 +1100
Message-ID: <kf5lav$3h0$1@ger.gmane.org>
References: <20130209091503.1f75352d@gentoo.org> <kf5g08$ns1$1@ger.gmane.org> <20130209095218.34fb59e0@gentoo.org>
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On 9/02/2013 23:52, Alexis Ballier wrote:
> On Sat, 09 Feb 2013 23:38:35 +1100
> Michael Palimaka <kensington@gentoo.org> wrote:
>
>> I even noticed some maintainers adding subslots dependencies on
>> libraries that do not yet define subslots. This too seems reasonable,
>> given that there would be no impact until the library defines a
>> (sensible) subslot in the future.
>
> By the way, this could also be discussed: I did not check, but as far
> as I understand it subslot is equal to slot if not defined. When said
> library defines a subslot, the subslot will change and thus triggers a
> (likely useless) rebuild of your package setting a := dep.
>
> Alexis.
>
>

Yeah. This behaviour can be avoided by introducing the explicit subslot 
only when the subslot would otherwise need bumping.