<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.
(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.
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.
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.
* 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.
we have those structures, but *don't* define them if we have
TERMIOS, whose functions take care of those parameters; that
screws up AIX.
(struct emacs_tty): Test those symbols, instead of the ioctl
commands.
* sysdep.c (emacs_get_tty, emacs_set_tty, new_ltchars, new_tchars,
init_sys_modes): Same.
* sysdep.c (sys_siglist): Don't define this if HAVE_SYS_SIGLIST is
#defined. That lets the system provide it, if it has it.
* syssignal.h (sigmask): Only define this if <signal.h> hasn't
given us a definition already.
* syssignal.h (sys_sigpause): Fix argument in prototype.
* sysdep.c (init_signals): The masks are called empty_mask and
full_mask, not signal_empty_mask and signal_full_mask.
(signal_handler_t): Moved ....
* syssignal.h: ... to here.
* systty.h (EMACS_SET_TTY_PGRP): Call tcsetpgrp with the correct
arguments.
* emacs.c (main): Don't try to establish signal handlers for
SIGBUS and SIGSYS unless they're actually #defined.
