Control: tags -1 + pending On 2015-07-03 13:11:46, Matthias Klose wrote: > Package: src:libmusicbrainz5 > Version: 5.1.0-3 > Severity: important > Tags: sid stretch > User: [email protected] > 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.
Yes, the symbols are part of the API and are used by reverse dependencies. > - 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). A version bumping the SONAME has been uploaded to experimental. I'll file a transition bug once it passed NEW. Cheers -- Sebastian Ramacher
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