Re: [gentoo-dev] useflag policies

[NP-Hardass]

^^ has the pleasant side effect of being easier to read, as a user. The user receives a message saying "at-most-one-of" instead of some convoluted other expression that they don't understand. 

I am all for the use of ^^ add the default for this reason.

Additionally, ?? has the same effect of being easy to understand as the description in the error message is in plain English.

--
NP-Hardass

On August 2, 2015 12:34:51 PM EDT, Ben de Groot <yngwin@g.o> wrote:
>Recently some team members of the Qt project have adopted these ebuild
>policies: https://wiki.gentoo.org/wiki/Project:Qt/Policies
>
>I have an issue with the policy adopted under "Requires one of two Qt
>versions". In my opinion, in the case where a package offers a choice
>between qt4 or qt5, we should express this in explicit useflags and a
>REQUIRED_USE="^^ ( qt4 qt5 )". This offers the user the clearest
>choice.
>
>Other developers state that users are not interested in such
>implementation
>details, or that forced choice through REQUIRED_USE is too much of a
>hassle. This results in current ebuilds such as quassel to not make it
>clear that qt4 is an option.
>
>This goes against the principle of least surprise, as well as against
>QA
>recommendations. I would like to hear specifically from QA about how we
>should proceed, but comments from the wider developer community are
>also
>welcome.
>
>--
>Cheers,
>
>Ben | yngwin
>Gentoo developer

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NP-Hardass