Control: reopen -1
Control: user release.debian@packages.debian.org
Control: usertag -1 + transition
Control: block -1 by 790756
Control: reassign -1 release.debian.org
Control: retitle -1 transition: csound (GCC 5)
On 3 July 2015 at 10:09, Matthias Klose wrote:
> Package: src:csound
> Version: 6.05~dfsg1-2
> Severity: important
> Tags: sid stretch
> User: debian-...@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.
>
> What is needed:
>
> - Rebuild the library using g++/g++-5 from experimental. Note that
>most likely all C++ libraries within the build dependencies need
>a rebuild too. You can find the log for a rebuild in
> https://people.debian.org/~doko/logs/gcc5-20150701/
>Search for "BEGIN GCC CXX11" in the log.
>
> - Decide if the symbols matching __cxx11 or B5cxx11 are part of the
>library API, and are used by the reverse dependencies of the
>library.
>
> - If there are no symbols matching __cxx11 or B5cxx11 in the symbols
>forming the library API, you should close this issue with a short
>explanation.
>
> - If there are no reverse dependencies, it should be the package
>maintainers decision if a transition is needed. However this might
>break software which is not in the Debian archive, and built
>against these packages.
>
> - If a library transition is needed, please prepare for the change.
>Rename the library package, append "v5" to the name of the package
>(e.g. libfoo2 -> libfoo2v5). Such a change can be avoided, if you
>have a soversion bump and you upload this version instead of the
>renamed package. Prepare a patch and attach it to this issue (mark
>this issue with patch), so that it is possible to NMU such a
>package. We'll probably have more than hundred transitions
>triggered. Then reassign the issue to release.debian.org and
>properly tag it as a transition issue, by sending an email to
>cont...@bugs.debian.org:
>
> user release.debian@packages.debian.org
> usertag + transition
> block by 790756
> reassign release.debian.org
The changed package has been uploaded to experimental, and I have
verified the only reverse dep (csoundqt) builds with it.
--
Saludos,
Felipe Sateler
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