On 02 Oct 2015 02:21, Ryan Hill wrote:
> IMO these should be fixed before we unmask:
> 
>    546742: x11-apps/sessreg-1.1.0 fail to build with gcc5
>    547626: dev-lang/python-3.3 / 3.4 test_faulthandler hangs with GCC 5.1
>    547950: app-shells/zsh-5.0.7-r2 builds but has runtime errors with GCC 5

done

>    555866: media-libs/phonon-4.8.3-r1[qt5] fails to build with gcc-5

it already has a patch that's been merged upstream, so just waiting on the kde
guys to actually merge it.  i don't think we need to block gcc-5 unmasking on it
if it's not going to get merged any time soon.

also it relies on USE=qt5 (my qt4 builds are fine).  not sure the distribution
of those flags in practice.

> > the only glaring issue is the C++11 ABI breakage:
> >     https://bugs.gentoo.org/542482
> > 
> > we already posted a news item when the breakage started in gcc-4.7:
> >     
> > https://archives.gentoo.org/gentoo-dev/message/4fa0c84858b4df49668da20302fc5b6f
> > 
> > but since gcc-5.x makes this the new default standard, more people are going
> > to run into it, so we probably want a reminder.  do we want any sort of
> > automation otherwise here ?
> 
> I think we need a news item to remind people they really do have to emerge -e
> @world after this one or they could have a bad time.

feel like writing it ? ;)

> FWIW I updated one system from 4.9 to 5.2 by rebuilding ~700 packages in 
> random
> order just to see how bad the ABI breakage would be and only ran into it once.
> I may have just gotten lucky though.

i upgraded gradually and it wasn't that much of a hassle, but it helps to know
how to read the failing logs/symbols.  so an empty world would be OK.
-mike

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