[gentoo-dev] Re: PSA: python-r1.eclass, python-single-r1.eclass, and REQUIRED_USE

[Michael Palimaka <kensington@gentoo.org>]

On 28/05/2013 01:35, Jonathan Callen wrote:
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> A quick reminder for anyone using python-r1.eclass or
> python-single-r1.eclass:
>
> These eclasses provide a ${PYTHON_REQUIRED_USE} variable that should
> be included in REQUIRED_USE under the same USE conditionals (if any)
> that ${PYTHON_DEPS} is included in DEPEND/RDEPEND.
>
> For example, if your ebuild has:
>
> RDEPEND="
>      python? ( ${PYTHON_DEPS}
> "
>
> then you should also have:
>
> REQUIRED_USE="
>      python? ( ${PYTHON_REQUIRED_USE} )
> "
>
> And if your ebuild just has:
>
> RDEPEND="${PYTHON_DEPS}"
>
> then you should also have:
>
> REQUIRED_USE="${PYTHON_REQUIRED_USE}"
>
> Failure to include these in REQUIRED_USE may cause the eclass to die
> very late in the build process.
>
> Thank you,
>
> Jonathan Callen
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Would it be possible to add repoman checks for this, and other common 
failures like missing PYTHON_USEDEP?