Re: [gentoo-dev] Moving GCC-3.4 to stable on x86

[Gregorio Guidi <greg_g@gentoo.org>]

On Tuesday 29 November 2005 03:40, Mark Loeser wrote:
> Mike Frysinger <vapier@gentoo.org> said:
> > that means when people upgrade to gcc-3.4, gcc-3.3 will remain on their
> > system until they remove it
> >
> > so if user fails to rebuild all their packages before unmerging gcc-3.3
> > they will be screwed, but OH WELL
>
> Yea.  Even after they remove it though, libstdc++-v3 should be pulled in
> after that.  Only issue I really see is people that have libraries compiled
> with 3.3 and 3.4 and don't know why stuff is broken.  I don't know how
> large of a problem that will be though.

It will be huge, see
https://bugs.gentoo.org/show_bug.cgi?id=64615
https://bugs.gentoo.org/show_bug.cgi?id=61146

Every user _must_ be instructed to run
'revdep-rebuild --soname libstdc++.so.5',
if a system contains things linking to libstdc++.so.5 and things linking to 
libstdc++.so.6 I consider it horribly broken.

Thus having libstdc++-v3 installed apparently solves a problem but in fact 
does not solve anything, the only solution is to recompile everything c++ 
related on the system.
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