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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 1, 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. */
-
- /* This file written by James Van Artsdalen of Dell Computer Corporation.
- * james@bigtex.cactus.org.
- */
-
- /* Use the SysVr3 file for at least base configuration. */
-
- #include "s-usg5-3.h"
-
- #define USG5_4
-
- /* We do have multiple jobs. Handle ^Z. */
-
- #undef NOMULTIPLEJOBS
-
- #define LIBS_SYSTEM -lsocket -lnsl -lelf
- #define ORDINARY_LINK
-
- #if 0 /* These should be unnecessary now because of ORDINARY_LINK. */
- #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
-
- /* No <sioctl.h> */
-
- #define NO_SIOCTL_H
-
- /* Undump with ELF */
-
- #undef COFF
-
- #define UNEXEC unexelf.o
-
- /* Get FIONREAD from <sys/filio.h>. Get <sys/ttold.h> to get struct
- * tchars. But get <termio.h> first to make sure ttold.h doesn't
- * interfere. And don't try to use SIGIO yet.
- */
-
- #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>
- #undef SIGIO
- #endif
-
- /* libc has this stuff, but not utimes. */
-
- #define HAVE_RENAME
- #define HAVE_SELECT
- #define HAVE_TIMEVAL
- #define HAVE_CLOSEDIR
- #define HAVE_GETTIMEOFDAY
- #define HAVE_DUP2
-
- #define USE_UTIME
-
- /* <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
-
- /* We need bss_end from emacs.c for undumping */
-
- #ifndef USG_SHARED_LIBRARIES
- #define USG_SHARED_LIBRARIES
- #endif
-
- /* We can support this */
-
- #define CLASH_DETECTION
-
- #define HAVE_PTYS
- #define HAVE_SETSID
- #define HAVE_TCATTR
-
- /* It is possible to receive SIGCHLD when there are no children
- waiting, because a previous waitsys(2) cleaned up the carcass of child
- without clearing the SIGCHLD pending info. So, use a non-blocking
- wait3 instead, which maps to waitpid(2) in SysVr4. */
-
- #define HAVE_WAIT_HEADER
- #define WAITTYPE int
- #define wait3(status, options, rusage) \
- waitpid((pid_t) -1, (status), (options))
- #define WRETCODE(w) (w >> 8)
-
- /* 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 sigrelse(2). */
-
- #define PTY_TTY_NAME_SPRINTF \
- { \
- char *ptsname(), *ptyname; \
- \
- sighold(SIGCLD); \
- if (grantpt(fd) == -1) \
- fatal("could not grant slave pty"); \
- sigrelse(SIGCLD); \
- if (unlockpt(fd) == -1) \
- fatal("could not unlock slave pty"); \
- if (!(ptyname = ptsname(fd))) \
- fatal ("could not enable slave pty"); \
- 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);
-
- /* 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
-
- /* This definition was suggested for next release.
- So give it a try. */
- #define HAVE_SOCKETS
-