Source: flann Version: 1.8.4-4.1 Severity: important Control: block -1 by 791067
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, 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. In the case of flann, std::string appears in header files that get installed, but it seems possible that all instances are inline (and hence do not affect the ABI). Someone who knows more C++ than me, such as the maintainer, should check whether a transition is needed. If in doubt, the safe option is to do the transition anyway (see <https://lists.debian.org/debian-release/2015/08/msg00574.html> for justification). The transition consists of renaming the affected library packages, adding a v5 suffix (libflann1.8v5). The SONAME should not be changed. These follow-up transitions for libstdc++ are not going through exactly the normal transition procedure, because many entangled transitions are going on at the same time, and the usual ordered transition procedure does not scale that far. When all the C++ libraries on which this library depends have started their transitions in unstable if required, this library should do the same, closing this bug; the release team will deal with binNMUs as needed. In the case of flann, if a transition is needed, it looks as though it will be necessary to wait for hdf5 (#791067). S [1] https://wiki.debian.org/GCC5#libstdc.2B-.2B-_ABI_transition -- debian-science-maintainers mailing list debian-science-maintainers@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/debian-science-maintainers
