Building qpid-0.20 with gcc-4.9.2 fails

Issue

• Building perl-0.20 fails with below error messages

[  2%] Building CXX object src/CMakeFiles/qpidcommon.dir/qpid/framing/AMQP_ServerProxy.o
In file included from /home/AFadeev/projects/qpid-0.20/cpp/src/qpid/framing/FrameHandler.h:23:0,
                 from /home/AFadeev/projects/qpid-0.20/cpp/src/qpid/framing/Proxy.h:22,
                 from /home/AFadeev/projects/qpid-0.20/cpp/build/src/qpid/framing/AMQP_ServerProxy.h:30,
                 from /home/AFadeev/projects/qpid-0.20/cpp/build/src/qpid/framing/AMQP_ServerProxy.cpp:29:
/home/AFadeev/projects/qpid-0.20/cpp/src/qpid/framing/Handler.h:52:47: error: invalid use of incomplete type ‘struct qpid::framing::Handler<T>’ [-Werror]
     template <class F> class Functor : public Handler<T> {
                                               ^
/home/AFadeev/projects/qpid-0.20/cpp/src/qpid/framing/Handler.h:32:8: error: declaration of ‘struct qpid::framing::Handler<T>’ [-Werror]
 struct Handler {
        ^
/home/AFadeev/projects/qpid-0.20/cpp/src/qpid/framing/Handler.h:64:30: error: invalid use of incomplete type ‘struct qpid::framing::Handler<T>’ [-Werror]
     class MemFunRef : public Handler<T> {
                              ^
/home/AFadeev/projects/qpid-0.20/cpp/src/qpid/framing/Handler.h:32:8: error: declaration of ‘struct qpid::framing::Handler<T>’ [-Werror]
 struct Handler {
        ^
cc1plus: all warnings being treated as errors
make[2]: *** [src/CMakeFiles/qpidcommon.dir/qpid/framing/AMQP_ServerProxy.o] Error 1
make[1]: *** [src/CMakeFiles/qpidcommon.dir/all] Error 2