From support@:

"""Inside init.sh for pulse 1.2.43, there's this line which fails on MacOS 10.4:

pidtest=`$PSEXE -p $pid -o args | grep "$WRAPPER_CMD" | tail -1`

Here's what it prints:

Starting Pulse Agent...
ps: args: keyword not found
ps: no valid keywords
Removed stale pid file: /usr/local/build/pulse-agent-1.2.43/bin/./pulse-agent.pid

The problem appears to be that 'args' is not a valid column name for ps. The 'command' column appears to be the MacOS X equivalent (and also works on Ubuntu Linux, for what it's worth). So the following line works marvelously on MacOS 10.4:

pidtest=`$PSEXE -p $pid -o command | grep "$WRAPPER_CMD" | tail -1`"""

There are two complications here:

1) Compatibility: "command" could be unsupported on some ps variant, and it is hard to test older ones
2) A change will interfere with agent upgrades, so we can't do it in 1.2.