Re: [gentoo-user] Emerge @system causing gcc downgrade

[Neil Bothwick]

On Tue, 7 Mar 2017 16:14:26 +0000, White, Phil wrote:

> Hi Neil,

Please don't top post, it is disliked on this list.

>
> Well, this is a new install.
> Used Stage3-i686-20170214.tar.bz2
> There is nothing in package.accept_keywords that is currently installed
> (as far as I know - although it is possible that I might have added
> ~x86 to gcc, although in this instance I don't believe that i did)
> I have installed some packages, but removed them also (been having
> problems with perl)
> So currently, updating @world is the same as @system
>
> OK - talking this through is helping. I *have* done something strange
> here. The currently installed version is 4.9.4 (from gcc --version),
> except that portage believes that 5.4.0 is installed.
> My guess is that, since I am trying to rebuild an old system (due to a
> hard-drive fail), I have accidentally copied over files that do not
> belong. My guess is a completely useless /var/db/pkg/* is confusing the
> hell out of portage/emerge.

If you copied over /var/db/pkg you have a rather confused and messed up
system. The safest way to recreate it is probably to move the pkg
directory elsewhere and then run "emerge -e @world".

> So - any suggestions how to fix this mess?
> Bite the bullet, emerge gcc, and then do a depclean - or can I convince
> portage that gcc 4.9.4 is really here?

gcc is slotted, so emerging 4.9.4 will not touch your 5.4.0 installation,
you use gcc-config to choose which one to use. What does gcc-config -l
show?


>
> Thanks,
> Phil
>
> On 7 March 2017 at 15:38, Neil Bothwick <neil@××××××××××.uk> wrote:
>
> > On Tue, 7 Mar 2017 15:07:32 +0000, White, Phil wrote:
> >
> > > I have a new install of Gentoo.
> > > emerge -uDpv --newuse @system results in a new slot for gcc,
> > > *downgrading* the current version (from 5.4.0 to 4.9.4)
> > > No other package is selected for merging.
> >
> > 4.9.4 is the latest stable. Are you running a stable system with some
> > packages in package.accept_keywords? If so, and you gave a specific
> > version of gcc, it is possible that version is no longer in the tree -
> > 5.4.0-r2 was recently removed.
> >
> > Use the ~ operator when specifying versions to allow for minor updates
> >
> > ~sys-devel/gcc-5.4.0
> >
> > or, in the case of gcc, you can specify a slot
> >
> > sys-devel/gcc:5.4.0
> >
> >
> > --
> > Neil Bothwick
> >
> > Despite the cost of living it remains popular.
> >




-- 
Neil Bothwick

This message has been cruelly tested on sweet little furry animals.