z (03/22/83)
CCA EMACS has been modified to communicate with shells and other subprocesses running in buffers via pseudo-terminals (pty's) instead of pipes on those systems which support pseudo-terminals. On other systems, and on those systems where there are no free pseudo-terminals available, EMACS will continue to use pipes. The advantages of using pseudo-terminals is twofold: first, all programs think that the are talking to a real tty, and behave as they do outside of EMACS; and second, full job control is available when running the C shell in a buffer.