RSB GStreamer Integration

I've experienced the following problem when compiling rsb-gstreamer (all dependencies on master) with llvm on MacOS:

[ 77%] Building CXX object CMakeFiles/gstrsb.dir/src/gst_rsb_audio_sink.cpp.o
/Users/swrede/Workspace/rsb-gstreamer/src/gst_rsb_audio_sink.cpp:227:30: error: call to member function 'setCreateTime' is ambiguous
    event->mutableMetaData().setCreateTime(GST_BUFFER_TIMESTAMP(buffer) / 1000);
    ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/usr/local/share/rsb0.9/../../include/rsb0.9/rsb/MetaData.h:106:10: note: candidate function
    void setCreateTime(const boost::uint64_t& time = 0);
         ^
/usr/local/share/rsb0.9/../../include/rsb0.9/rsb/MetaData.h:107:10: note: candidate function
    void setCreateTime(const double& time);
         ^
/usr/local/share/rsb0.9/../../include/rsb0.9/rsb/MetaData.h:108:10: note: candidate function not viable: no known conversion from 'unsigned long' to
      'const boost::posix_time::ptime' for 1st argument;
    void setCreateTime(const boost::posix_time::ptime& time);
         ^
1 error generated.
make[2]: *** [CMakeFiles/gstrsb.dir/src/gst_rsb_audio_sink.cpp.o] Error 1
make[1]: *** [CMakeFiles/gstrsb.dir/all] Error