On Thu, 2 Mar 2017 17:36:16 -0500 Michael Orlitzky <m...@gentoo.org> wrote:
> On 03/02/2017 04:53 PM, Alexis Ballier wrote: > >> > >> Back on topic: > >> > >> What kind of dependency do we need, anyway? William, are you saying > >> that if I upgrade dev-lang/go, then things will break, but if I > >> delete dev-lang/go, everything is fine? > > > > It's likely like ocaml: you link your programs ~ statically but > > everything you link needs to be built with the same compiler. So > > that'd be some kind of "build against"-RDEPEND. > > > > The tiny practical part of me thinks it's probably better to add > dev-lang/go:= to RDEPEND than it is to create an entirely new class of > dependencies to handle this. That's what I do with ocaml, it works pretty well :) My rationale is that for size-constrained installs (embedded, containers, etc.) you'd have to remove everything you don't need anyway (/usr/include, gcc, etc.) so one more or one less does not make a difference. And for normal gentoo installs, you'd want to upgrade, so better not waste your time uninstalling and reinstalling it every time. Nevertheless, build-against deps are still useful. Think of a lib #including eigen in its public headers. Is eigen a build or run depend ? It's in-between: build-against :) Alexis.
