Re: [gentoo-dev] [PMS] [PATCH] Correct the definition of ESYSROOT as EPREFIX isn't always applicable

[James Le Cuirot]

On Wed, 31 Jul 2019 21:40:19 +0100
James Le Cuirot <chewi@g.o> wrote:

> So why does ROOT affect it? Normally you install the packages for
> BDEPEND, DEPEND, and RDEPEND to the same location. If BDEPEND and
> RDEPEND are installed to different locations (ROOT!=/) then DEPEND will
> almost always be installed to one of the other two. If either of those
> two locations is prefixed then we need the prefix for DEPEND's location
> to match, otherwise it wouldn't actually be the same location. Using
> ROOT allows us to figure this out automatically in a way that covers
> all sensible use cases and avoids accidentally falling into an
> unsupported case.

Just to clarify this in the binpkg case, here you would normally
install BDEPEND, DEPEND, and usually RDEPEND to / on your build
machine. On your other machines, you usually only care about RDEPEND.
If you care about BDEPEND and DEPEND too then you'll need to use the
same prefix everywhere but that's nothing new. You'd be pretty crazy to
use different prefixes in this kind of environment anyway.

-- 
James Le Cuirot (chewi)
Gentoo Linux Developer