add do {...} while (0) to MXFPP_CHECK macro
add do {...} while (0) to MXFPP_CHECK macro

Limecraft/ebu-libmxfpp,Limecraft/ebu-libmxfpp,ebu/ebu-libmxfpp,ebu/ebu-libmxfpp,stuarthicks/libmxfpp,ebu/ebu-libmxfpp,stuarthicks/libmxfpp,Limecraft/ebu-libmxfpp,stuarthicks/libmxfpp