caseOf: MacOSX
1. MIDIPlugin in Pharo vm requires SerialPlugin (see sqMacMIDI.c).�
2. source of SerialPlugin is sqUnixSerial.c (see MacOSConfig>>configureSerialPlugin: in vmmaker-image).
3. at midiInit() of sqMacMIDI.c, it checks the functions of SerialPlugin, but functions below ware missing.
� serialPortIsOpen
� serialPortSetControl
� serialPortNames
� serialPortCount
So midiInit() returns interpreterProxy success: false. it causes primitive error while loading.
2013/05/03, i'd tried to build vm after these ioLoadFunctionFrom 4 functions comment out, and load sound package from PharoExtras, it could use ScorePlayer. yes, checked midi-out only.
at least up to Pharo 1.2 MIDIPlugin was loaded.
regards.