Bug#791130: libitpp: library transition may be needed when GCC 5 is the default

[Julien Cristau]

Control: severity -1 serious
Control: tag -1 confirmed

On Fri, Jul  3, 2015 at 13:11:34 +0000, Matthias Klose wrote:

> Package: src:libitpp
> Version: 4.3.1-3
> Severity: important
> Tags: sid stretch
> User: debian-gcc at lists.debian.org
> Usertags: libstdc++-cxx11
> 
> Background [1]: libstdc++6 introduces a new ABI to conform to the
> C++11 standard, but keeps the old ABI to not break existing binaries.
> Packages which are built with g++-5 from experimental (not the one
> from testing/unstable) are using the new ABI.  Libraries built from
> this source package export some of the new __cxx11 or B5cxx11 symbols,
> and dropping other symbols.  If these symbols are part of the API of
> the library, then this rebuild with g++-5 will trigger a transition
> for the library.

See e.g.
https://buildd.debian.org/status/fetch.php?pkg=aghermann&arch=amd64&ver=1.0.5-1%2Bb1&stamp=1438793511

Cheers,
Julien
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