Compilation error rendermidi.cpp no member named emplace

I am getting a compile error from the github source, which was working a couple of weeks ago.

A snippet of the error message (with leading paths removed) is below:

libmscore/rendermidi.cpp: In member function ‘void Ms::Score::renderMidi(Ms::EventMap*)’
libmscore/rendermidi.cpp:989:38: error: ‘class std::map > >’ has no member named ‘emplace’