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	Added VMS changes from Roland Roberts.

	* process.c (read_process_output): Save, widen, insert the process
	output, and then restore the restriction if inserting text outside
	the visible region.

	* process.c (Fstart_process): Establish an unwind-protect to
	remove PROC from the process list if an error occurs while
	starting it.
	(start_process_unwind): New function to help with that.
	(create_process): There's no need to explicitly call
	remove_process if the fork fails; the record_unwind_protect in
	Fstart_process will take care of it.

	* process.c (wait_reading_process_input): Test the C preprocessor
	symbol "ultrix", not "__ultrix__" to see if we should ignore
	ENOMEM errors from select.

	* process.c (process_send_signal): On systems which have both
	the TIOCGETC and TCGETA ioctls, just use the former.

	* s/bsd4-2.h, s/bsd4-3.h: #define SIGNALS_VIA_CHARACTERS.
	* process.c (process_send_signal): Put all the code for sending
	signals via characters in a #ifdef SIGNALS_VIA_CHARACTERS.  Decide
	whether to use the Berkeley-style or SYSV-style ioctls by seeing
	which ioctl commands are #defined.

	* process.c (process_send_signal): Doc fix.

	<fcntl.h>.
	(process_send_signal): Don't try to send SIGTSTP
	unless SIGTSTP is defined.

	Lisp_Object at the top of the file.
	(decode_status): Don't untag XCONS (tem)->cdr before storing it in
	tem; tem is a Lisp_Object, too.
	(process_send_signal): Declare this to be static void.  Don't
	return Qnil; nobody cares.
	(sigchld_handler): Use XFASTINT to manipulate p->infd.

	* process.c (pty_process): Variable deleted; it's no longer used.
	(syms_of_process): Don't initialize it.

	ENOMEM, treat that like EINTR under Ultrix.

	(create_process): #if 0 out the code which sets the child's
	handler for SIGCHLD to sigchld; the code which gives sigchld its
	value has been diked out under these CPP symbols, so this should
	be diked out too.

(create_process) [HAVE_SETSID]: Use TIOCSCTTY if exists.

	system doesn't have that facility.

	* process.c: [USG5] Don't include <fcntl.h>.
	[USG] Don't bother including termios, termio, or fcntl; systerm.h
	takes care of all that.
	Remove the "mis;tak-+;;" line from the code; apparently this
	section of code does get used.

	* process.c (wait_reading_process_input): Put comments around
	text following #endif.