Re: The purpose of marking a package Multi-Arch: foreign
On Sun, Jan 16, 2022 at 12:56 PM Tong Sun
<suntong001@users.sourceforge.net> wrote:
>
> On Fri, Jan 14, 2022 at 4:42 PM Tong Sun wrote:
> >
> > On Thu, Jan 13, 2022 at 4:09 PM Debian Bug Tracking System
> > <owner@bugs.debian.org> wrote:
> > >
> > > Your message dated Thu, 13 Jan 2022 21:07:44 +0000
> > > with message-id <E1n87Jw-000Iud-Bn@fasolo.debian.org>
> > > and subject line Bug#980990: fixed in golang-github-danverbraganza-varcaser 0.0~git20190207.e3fb03e-2
> > > has caused the Debian Bug report #980990,
> > > regarding mark golang-github-danverbraganza-varcaser-dev Multi-Arch: foreign
> > > to be marked as done.
> > >
> > > This means that you claim that the problem has been dealt with.
> > > If this is not the case it is now your responsibility to reopen the
> > > Bug report if necessary, and/or fix the problem forthwith.
> >
> > Hi Helmut,
> >
> > Sorry for replying late, but it finally got fixed now.
> >
> > One thing I don't understand about marking a package Multi-Arch:
> > foreign -- what would the impact be, e.g., would I be seeing anything
> > different in its build,
> > https://buildd.debian.org/status/package.php?p=golang-github-danverbraganza-varcaser,
> > etc?
> >
> > Can you explain a bit please? thx!
>
> Hi,
>
> I have a question regarding marking
> golang-github-danverbraganza-varcaser-dev Multi-Arch: foreign
> what's the purpose of it?
>
> I did find an explanation from https://wiki.debian.org/Multiarch/HOWTO:
>
> > If a package is marked 'Multi-Arch: foreign', then it can satisfy dependencies of a package of a different architecture (e.g 'debhelper:amd64' will satisfy a dependency on debhelper for any-architecture package).
>
> Yet, I'm unable to digest that -- e.g., why an amd64 architecture
> needs dependencies of a package from amd64?
Sorry I meant, e.g., why an amd64 architecture needs dependencies of a
package from arm64?
> Helmut's explanation was:
>
> > easygen cannot be cross built from source, because its dependency on
> golang-github-danverbraganza-varcaser-dev is not satisfiable.
> In general, Architecture: all packages can never satisfy cross
> Build-Depends unless marked Multi-Arch: foreign or annotated :native.
>
> I guess I don't understand the concept and implication of Debian's
> cross built, as I see that easygen is being cross built without
> 'Multi-Arch: foreign', yet golang-github-danverbraganza-varcaser-dev
> is not, despite having the 'Multi-Arch: foreign' .
>
> https://buildd.debian.org/status/package.php?p=easygen vs.
> https://buildd.debian.org/status/package.php?p=golang-github-danverbraganza-varcaser
>
> Please help.
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