Qt 5.2 aplha doesn't compile with Clang 3.3 under Linux

compiling .../qtdeclarative/src/qml/qml/qqmlengine.cpp
.../qtdeclarative/src/qml/jsruntime/qv4engine_cxxabi.cpp:73:5: error: unknown type name '_Unwind_Exception'
    _Unwind_Exception unwindHeader;
    ^
.../qtdeclarative/src/qml/jsruntime/qv4engine_cxxabi.cpp:89:52: error: unknown type name '_Unwind_Exception'
static void exception_cleanup(_Unwind_Reason_Code, _Unwind_Exception *ex)
                                                   ^
.../qtdeclarative/src/qml/jsruntime/qv4engine_cxxabi.cpp:100:5: error: unknown type name '_Unwind_Exception'
    _Unwind_Exception *exception = (_Unwind_Exception*)malloc(sizeof(_Unwind_Exception));
    ^
.../qtdeclarative/src/qml/jsruntime/qv4engine_cxxabi.cpp:100:37: error: use of undeclared identifier '_Unwind_Exception'
    _Unwind_Exception *exception = (_Unwind_Exception*)malloc(sizeof(_Unwind_Exception));
                                    ^
.../qtdeclarative/src/qml/jsruntime/qv4engine_cxxabi.cpp:100:55: error: expected expression
    _Unwind_Exception *exception = (_Unwind_Exception*)malloc(sizeof(_Unwind_Exception));
                                                      ^