2018-06-20 14:16 GMT+03:00 Mick <michaelkintz...@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.
