"Unused private field" build failure(s) — clang 3.4.2

clang -Wall -Werror will fail because bar is private (by default) and never used. g++ does not complain here.
class foo
{
    int bar;
};
PackageVersionSupposed error messageFull log Bug report
qpid-cpp 0.16-7.1qpid/client/RdmaConnector.cpp:72:33: error: private field 'initialiser' is not used [-Werror,-Wunused-private-field] Log

1 errors