[LAU] Phasex. Unable to start MIDI thread, then segfaults

[Nigel Henry]

This is phasex-0.12.0-beta4 on archlinux.

It compiles ok, but fails to start with the following output when run from the 
command line.

djmons at myhost ~]$ /usr/local/bin/phasex -d
Raw Waveform '/usr/local/share/phasex/sys-samples/juno_osc.raw': 2809 samples
Raw Waveform '/usr/local/share/phasex/sys-samples/juno_saw.raw': 5629 samples
Raw Waveform '/usr/local/share/phasex/sys-samples/juno_square.raw': 5634 
samples
Raw Waveform '/usr/local/share/phasex/sys-samples/juno_poly.raw': 2814 samples
Raw Waveform '/usr/local/share/phasex/sys-samples/vox_1.raw': 1193 samples
Raw Waveform '/usr/local/share/phasex/sys-samples/vox_2.raw': 706 samples
Initializing JACK client from thread 0xb71426c0
Unique JACK client name 'phasex-01' assigned.
JACK is running with realtime scheduling.
JACK sample rate:  44100
Internal sample rate:  44100
JACK requested sample rate:  44100
JACK output buffer size:  1024.
Unable to start MIDI thread.
Segmentation fault
[djmons at myhost ~]$

Anyone know what the "Unable to start MIDI thread" bit means, and how I might 
resolve the problem?

Nigel.