Re: [gentoo-user] Re: Permissions error on starting X.

[Rich Freeman <rich0@gentoo.org>]

On Mon, Nov 5, 2018 at 11:27 AM Nikos Chantziaras <realnc@gmail.com> wrote:
>
> On 05/11/2018 17:30, Grant Edwards wrote:
> > On 2018-11-04, Nikos Chantziaras <realnc@gmail.com> wrote:
> >> On 03/11/2018 16:01, Alan Mackenzie wrote:
> >>> The developers, in this instance, failed to raise the ebuild's version
> >>> number from 1.20.3 when making this change, and also didn't notify users
> >>> by a NEWS item, that I can see.
> >>
> >> Emerge will catch this, no need for revbump. Unless you're not using -D
> >> (--deep) when updating world. Which you should.
> >
> > What do you mean "catch this"?
> >
> > I always use -D, and the change broke my system.
>
> I mean that a USE flag change will trigger a rebuild of the package

-D will not cause USE flag changes to trigger a rebuild of a package.

You're thinking of --newuse in this particular case.  I'm not sure if
--changed-use would cause a rebuild if the previous flag was defaulted
to enabled and not explicitly enabled (of course, if it were
explicitly enabled you wouldn't have run into this issue).

-- 
Rich