#261 crash when sending "dsp" to a signal-object

[IOhannes m zmölnig]

Pd crashes when you send a message "dsp" to any signal-object.
e.g.

[dsp(
|
[noise~]

the reason is obvious, as signal-objects expect "A_CANT" for the "dsp"-message but do not receive one when sending this message "manuall" (unlike when you turn on audio)

a possible solution would be to add some extra check in the message-dispatcher for A_CANT-messages and disallow them for ordinary users (sending an error-message to the console)

[Hans-Christoph Steiner]

Still happens on Pd-vanilla 0.42-4 running on Mac OS X 10.5.6/Intel.

[IOhannes m zmölnig]

fixed with 5769c5216a29