Hi Helmut,
For CMUCL we use signal driven IO per default. Your C code may not be prepared for that. Try to set swank:*communication-style* to :fd-handler.
Thanks, that helps.
It also gets rid of another error I had in connection with doing IPC-calls.
Thanks a lot! :-)
Stefan Kamphausen
PS: I still have problems posting from my workplace, I just hope that this message will not repeat.