This bug is related to https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1725869 (and https://sourceware.org/bugzilla/show_bug.cgi?id=22296). If gcc-5 is rebuilt with a version of glibc with that bug fixed then this one is fixed too.
** Bug watch added: Sourceware.org Bugzilla #22296 https://sourceware.org/bugzilla/show_bug.cgi?id=22296 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1725848 Title: libstdc++-5-dev:amd64 5.5.0-1ubuntu1 configured without _GLIBCXX_USE_C99 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-5/+bug/1725848/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs