Bug#994388: tech-ctte: More specific advice regarding merged-/usr and implications of #978636

[Simon McVittie <smcv@debian.org>]

On Wed, 15 Sep 2021 at 12:35:38 +0100, Simon McVittie wrote:
> - §(Building packages): I almost wrote an extra paragraph about how
>   this class of bugs becomes a non-issue when merged-/usr is the only
>   supported layout - but actually it doesn't! If we consider building
>   packages while having /usr/local/bin/sed to be a supported thing you
>   can do, then we need to ensure that /usr/local/bin/sed doesn't get
>   hard-coded into the resulting package, and the steps you take to
>   make that happen are the same as the steps you take to fix this class
>   of bugs.

I think that class of bugs probably does become non-RC when the
merged-/usr transition is complete, though.

    smcv