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(narrow_foreground_group, widen_foreground_group): Define if BSD_PGRPS.

these routines for the CX/UX operating system.
(sys_signal) [SA_RESTART]: Set this flag.

apparently accidentally removed in 1994-01-03T07:21:12Z!rms@gnu.org.

[! HAVE_STRERROR] (strerror): New function.
(dup2): Use strerror instead of sys_errlist.

<sys/param.h> needed for the following changes, but not <sys/ioctl.h>
(discard_tty_input) [MSDOS]: Do it by reading till no more keys available.
(init_baud_rate) [MSDOS]: Assume highest possible speed.
(sys_suspend) [MSDOS]: Save default directory.  Call via system, not via fork.
(emacs_get_tty, emacs_set_tty) [MSDOS]: Don't do anything.
(init_sys_modes) [MSDOS]: Use raw mode.
(get_frame_size) [MSDOS]: Get from bios.
(reset_sys_modes) [MSDOS]: Back to cooked mode.
(start_of_text) [MSDOS]: Reference _tstart.
(select) [MSDOS]: Don't use signals, use sleeping.
(init_sys_modes) [MSDOS]: Initialize internal terminal.

not a fully qualified domain name, then try to find one in the
list of alternate names.

Do use this definition, if INTERRUPTIBLE_CLOSE.

(getwd for VMS): Likewise.

(read_input_waiting): read_socket_hook
delivers events, not characters.  Make buf smaller
in the case where we actually call read itself.

if read_socket_hook is nonzero.

(LPASS8, LNOFLSH): Move definitions earlier.
(child_setup_tty): Turn on LPASS8.

all of the data is written, or until we receive an error which is
not an interrupted write.

if they are defined as macros.

(narrow_foreground_group, widen_foreground_group, init_sys_modes)
(init_baud_rate, init_sigio, request_sigio, unrequest_sigio): Likewise.
(change_input_fd): New function.

Redirect descriptors 0...2 to /dev/null.

configure to edit.
* sysdep.c [not HAVE_MKDIR] (mkdir): New function, taken from tar,
for use on systems lacking the mkdir function.
[not HAVE_RMDIR] (rmdir): New function, taken from tar, for use on
systems lacking the rmdir function.

	* m/dpx2.h: New file.

	const away on systems which don't have it; any system with
	prototypes will declare the arguments const (the ones to which I
	have access do); and systems without prototypes won't notice.

	* s/irix4-0.h: Get rid of our fake definitions for setpgrp and
	getpgrp.
	* callproc.c (Fcall_process): Go ahead and use the USG calling
	convention for setpgrp.
	* ymakefile (pre-crt0.o): Add rule for this.  Perhaps it will help
	separate-source-directory compilation.
	* emacs.c (shut_down_emacs): Some USG systems #define
	EMACS_HAVE_TTY_PGRP; call getpgrp as appropriate for such systems.
	* sysdep.c (sys_suspend): Call getpgrp as appropriate for USG and
	non-USG.
	* process.c [IRIX] (create_process): Don't put child in process
	group zero before opening the tty; Irix is like USG in this
	regard.

	Glickstein <bobg@zindigo.z-code.com>:
	* m/iris4d.h (LIB_STANDARD): Do list -lbsd here.
	* s/irix4-0.h (getpgrp, setpgrp): #define these to call BSDgetpgrp
	and BSDsetpgrp.
	(GETPGRP_NO_ARG): Don't #define this.
	* emacs.c (main): Don't test GETPGRP_NO_ARG.
	* sysdep.c (sys_suspend): Don't test GETPGRP_NO_ARG.

	* config.h.in (HAVE_CLOSEDIR): Add an #undef for autoconf to
	change.
	* sysdep.c (closedir): Only define this if autoconf can't find
	HAVE_CLOSEDIR.  If we're running under solaris (defined (sun) &&
	defined (USG5_4)), then don't free the buffer separately.

	like it and the DIR were malloced together.

	disables the meta key.

	and VINTR.

	* sysdep.c [BSD] (inherited_pgroup): New variable.
	(narrow_foreground_group, widen_foreground_group): New functions.
	(init_sys_modes): Call narrow_foreground_group.
	(reset_sys_modes): Call widen_foreground_group.
	* emacs.c [BSD] (inherited_pgroup): Add extern declaration.
	[BSD] (main): Set inherited_pgroup, and put ourselves in our own
	pgroup.

	to #undef FASYNC if BROKEN_FASYNC is #defined.