Ceph failed to build with some impenetrable C++ error: In file included from /usr/include/boost/optional/optional.hpp:28:0, from /usr/include/boost/optional/optional_io.hpp:19, from ./include/encoding.h:289, from ./include/uuid.h:8, from ./include/types.h:21, from mon/OSDMonitor.h:28, from mon/OSDMonitor.cc:21: /usr/include/boost/variant/get.hpp: In instantiation of 'typename boost::add_reference<const U>::type boost::strict_get(const boost::variant<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19>&) [with U = int; T0 = std::__cxx11::basic_string<char>; T1 = bool; T2 = long long int; T3 = double; T4 = std::vector<std::__cxx11::basic_string<char> >; T5 = boost::detail::variant::void_; T6 = boost::detail::variant::void_; T7 = boost::detail::variant::void_; T8 = boost::detail::variant::void_; T9 = boost::detail::variant::void_; T10 = boost::detail::variant::void_; T11 = boost::detail::variant::void_; T12 = boost::detail::variant::void_; T13 = boost::detail::variant::void_; T14 = boost::detail::variant::void_; T15 = boost::detail::variant::void_; T16 = boost::detail::variant::void_; T17 = boost::detail::variant::void_; T18 = boost::detail::variant::void_; T19 = boost::detail::variant::void_; typename boost::add_reference<const U>::type = const int&]': /usr/include/boost/variant/get.hpp:299:25: required from 'typename boost::add_reference<const U>::type boost::get(const boost::variant<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19>&) [with U = int; T0 = std::__cxx11::basic_string<char>; T1 = bool; T2 = long long int; T3 = double; T4 = std::vector<std::__cxx11::basic_string<char> >; T5 = boost::detail::variant::void_; T6 = boost::detail::variant::void_; T7 = boost::detail::variant::void_; T8 = boost::detail::variant::void_; T9 = boost::detail::variant::void_; T10 = boost::detail::variant::void_; T11 = boost::detail::variant::void_; T12 = boost::detail::variant::void_; T13 = boost::detail::variant::void_; T14 = boost::detail::variant::void_; T15 = boost::detail::variant::void_; T16 = boost::detail::variant::void_; T17 = boost::detail::variant::void_; T18 = boost::detail::variant::void_; T19 = boost::detail::variant::void_; typename boost::add_reference<const U>::type = const int&]' ./common/cmdparse.h:47:26: required from 'bool cmd_getval(CephContext*, const cmdmap_t&, std::__cxx11::string, T&) [with T = int; cmdmap_t = std::map<std::__cxx11::basic_string<char>, boost::variant<std::__cxx11::basic_string<char>, bool, long long int, double, std::vector<std::__cxx11::basic_string<char> > > >; std::__cxx11::string = std::__cxx11::basic_string<char>]' mon/OSDMonitor.cc:3002:54: required from here /usr/include/boost/variant/get.hpp:195:5: error: invalid application of 'sizeof' to incomplete type 'boost::STATIC_ASSERTION_FAILURE<false>' BOOST_STATIC_ASSERT_MSG( ^ Makefile:15876: recipe for target 'mon/OSDMonitor.lo' failed ---------------------------------------------------------------------- Any ideas on that one? This blocks qemu and all the rest of the virt stack. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://people.redhat.com/~rjones/virt-top -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct