Re: [gentoo-user] Upgrading gcc from 6.4 to 7.3

[Thomas <bluerain41@gmail.com>]

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Whenever you compile your kernel, you will need to run

emerge @module-rebuild


Otherwise, you can always install all the modules manually.

https://wiki.gentoo.org/wiki/Kernel/Upgrade#Reinstalling_external_kernel_modules

On Tue, Jul 24, 2018 at 12:02 PM gevisz <gevisz@gmail.com> wrote:

> 2018-07-24 22:00 GMT+03:00 gevisz <gevisz@gmail.com>:
> > 2018-06-20 14:16 GMT+03:00 Mick <michaelkintzios@gmail.com>:
> >> On Wednesday, 20 June 2018 11:43:32 BST gevisz wrote:
> >>> After updating portage tree today, portage
> >>> suggested to upgrade gcc from 6.4 to 7.3
> >>> version what I have done just now.
> >>>
> >>> Nevertheless,
> >>> # gcc-config --list-profiles
> >>>  [1] x86_64-pc-linux-gnu-6.4.0 *
> >>>  [2] x86_64-pc-linux-gnu-7.3.0
> >>> shows that I still have version 6.4 as a default.
> >>
> >> I'm on gcc-7.3.0-r3 and have not noticed any problems on 3 boxen so far.
> >>
> >>
> >>> As https://wiki.gentoo.org/wiki/Upgrading_GCC
> >>> still do not have any specific instructions on
> >>> switching to gcc version 7.3, I am still afread
> >>> of switching to gcc version 7.3 and would like
> >>> to ask if anybody encountered some problem
> >>> after switching to gcc version 7.3 and which
> >>> packages should be rebuild after such switching.
> >>>
> >>> Thank you in advance for your help.
> >>
> >> I didn't have to rebuild anything, but if you have reasons to fear
> breakage
> >> you can rebuild your toolchain:
> >>
> >> 1. Use gcc-config to select x86_64-pc-linux-gnu-7.3.0
> >> 2. Re-source /etc/profile by running in your current console/terminal:
> >>     . /etc/profile
> >> 3. Re-emerge libtool:
> >>     emerge -1 sys-devel/libtool
> >> 4. Re-emerge the following packages in this order:
> >>     emerge -1 sys-devel/gcc-7.3.0-r3
> >>     emerge -1 sys-devel/binutils
> >>     emerge -1 sys-libs/glibc
> >> 5. You could if you want re-emerge your entire system, 'emerge -e
> @world' or
> >> if you would rather conserve electricity wait as different packages
> come up
> >> for an update over time.
> >>
> >> If my experience to date holds true and for a general purpose desktop
> none of
> >> the above rebuilds are necessary, other than switching your gcc to
> 7.3.0.
> >
> > You forgot the 6th item:
> >
> > 6. Recompile the kernel.
> >
> > Just today, virtualbox-modules refused to compile because of this.
> > Thanks to Michael Orlitzky for the tip how to interpret portage messages.
>
> By the way, this recommendation is absent from Gentoo wiki on updating gcc.
>
>

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