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- /* Definitions file for GNU Emacs running on AT&T's System V Release 4
- Copyright (C) 1987, 1990 Free Software Foundation, Inc.
-
- This file is part of GNU Emacs.
-
- GNU Emacs is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- GNU Emacs is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNU Emacs; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* Synched up with: FSF 19.29. */
-
- /* This file written by James Van Artsdalen of Dell Computer Corporation.
- * james@bigtex.cactus.org. Subsequently improved for Dell 2.2 by Eric
- * S. Raymond <esr@snark.thyrsus.com>.
- */
-
- /* Use the SysVr3 file for at least base configuration. */
-
- #include "usg5-3.h"
-
- #define USG5_4
-
- /* On most SVR4 systems, gettimeofday takes one arg
- and the compiler might crash. */
- #define GETTIMEOFDAY_ONE_ARGUMENT
-
- #define LIBS_SYSTEM -lsocket -lnsl -lelf
- #define ORDINARY_LINK
-
- #if 0
- #ifdef ORDINARY_LINK
- #define LIB_STANDARD -lc /usr/ucblib/libucb.a
- #else
- #define START_FILES pre-crt0.o /usr/ccs/lib/crt1.o /usr/ccs/lib/crti.o /usr/ccs/lib/values-Xt.o
- #define LIB_STANDARD -lc /usr/ucblib/libucb.a /usr/ccs/lib/crtn.o
- #endif
- #else
-
- #ifdef ORDINARY_LINK
- #define LIB_STANDARD
- #else
- #define START_FILES pre-crt0.o /usr/ccs/lib/crt1.o /usr/ccs/lib/crti.o /usr/ccs/lib/values-Xt.o
- #define LIB_STANDARD -lc /usr/ccs/lib/crtn.o
- #endif
- #endif
-
- /* there are no -lg libraries on this system, and no libPW */
-
- #define LIBS_DEBUG
- #define LIBS_STANDARD -lc
-
- /* No <sioctl.h> */
-
- #define NO_SIOCTL_H
-
- /* Undump with ELF */
-
- #undef COFF
-
- #define UNEXEC unexelf.o
-
- /* <sys/stat.h> *defines* stat(2) as a static function. If "static"
- * is blank, then many files will have a public definition for stat(2).
- */
-
- #undef static
-
- /* Get <sys/ttold.h> to get struct
- * tchars. But get <termio.h> first to make sure ttold.h doesn't
- * interfere.
- */
-
- #ifdef emacs
- #include <sys/filio.h>
- #include <termio.h>
- #include <sys/ttold.h>
- #include <signal.h>
- #include <sys/wait.h>
- #include <sys/stream.h>
- #include <sys/stropts.h>
- #include <sys/termios.h>
- #endif
-
- #undef BROKEN_SIGIO
-
- /* Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
- * instead, there's a system variable _sys_nsig. Unfortunately, we need the
- * constant to dimension an array. So wire in the appropriate value here.
- */
-
- #ifndef NSIG
- #define NSIG 32
- #endif
-
- /* We need bss_end from emacs.c for undumping */
-
- #ifndef USG_SHARED_LIBRARIES
- #define USG_SHARED_LIBRARIES
- #endif
-
- #define HAVE_PTYS
- #undef BROKEN_TIOCGWINSZ
- #undef BROKEN_TIOCGETC
-
- /* TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
- subprocesses the usual way. But TIOCSIGNAL does work for PTYs, and
- this is all we need. */
-
- #define TIOCSIGSEND TIOCSIGNAL
-
- /* This change means that we don't loop through allocate_pty too many
- times in the (rare) event of a failure. */
-
- #undef FIRST_PTY_LETTER
- #define FIRST_PTY_LETTER 'z'
-
- /* This sets the name of the master side of the PTY. */
-
- #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
-
- /* This sets the name of the slave side of the PTY. On SysVr4,
- grantpt(3) forks a subprocess, so keep sigchld_handler() from
- intercepting that death. If any child but grantpt's should die
- within, it should be caught after EMACS_UNBLOCK_SIGNAL. */
-
- /* XEmacs change */
- #ifndef NOT_C_CODE
- # if !__STDC__ && !defined(STDC_HEADERS)
- char *ptsname ();
- # endif
- #endif
-
- #define PTY_TTY_NAME_SPRINTF \
- { \
- char *ptyname; \
- \
- EMACS_BLOCK_SIGCHLD; \
- if (grantpt (fd) == -1) \
- { close (fd); return -1; } \
- EMACS_UNBLOCK_SIGCHLD; \
- if (unlockpt (fd) == -1) \
- { close (fd); return -1; } \
- if (!(ptyname = ptsname (fd))) \
- { close (fd); return -1; } \
- strncpy (pty_name, ptyname, sizeof (pty_name)); \
- pty_name[sizeof (pty_name) - 1] = 0; \
- }
-
- /* Push various streams modules onto a PTY channel. */
-
- #define SETUP_SLAVE_PTY \
- if (ioctl (xforkin, I_PUSH, "ptem") == -1) \
- fatal ("ioctl I_PUSH ptem", errno); \
- if (ioctl (xforkin, I_PUSH, "ldterm") == -1) \
- fatal ("ioctl I_PUSH ldterm", errno); \
- if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) \
- fatal ("ioctl I_PUSH ttcompat", errno);
-
- /* Undo the SVr3 X11 library definition */
- #undef LIB_X11_LIB
-
- /* The definition of this in s-usg5-3.h is not needed in 5.4. */
- /* liblnsl_s should never be used. The _s suffix implies a shared
- library, as opposed to a DLL. Share libraries were used in SVR3, and are
- available only in order to allow SVR3 binaries to run. They should not be
- linked in to new binaries. -- caraway!pinkas@caraway.intel.com. */
- #undef LIBX10_SYSTEM
- #undef LIBX11_SYSTEM
-
- /* Tell x11term.c and keyboard.c we have the system V streams feature. */
- #define SYSV_STREAMS
-