usg5-4.h 5.74 KB
Newer Older
Jim Blandy's avatar
Jim Blandy committed
1
/* Definitions file for GNU Emacs running on AT&T's System V Release 4
Jim Blandy's avatar
Jim Blandy committed
2
   Copyright (C) 1987, 1990 Free Software Foundation, Inc.
Jim Blandy's avatar
Jim Blandy committed
3 4 5

This file is part of GNU Emacs.

Jim Blandy's avatar
Jim Blandy committed
6 7
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
Jim Blandy's avatar
Jim Blandy committed
8
the Free Software Foundation; either version 2, or (at your option)
Jim Blandy's avatar
Jim Blandy committed
9 10
any later version.

Jim Blandy's avatar
Jim Blandy committed
11
GNU Emacs is distributed in the hope that it will be useful,
Jim Blandy's avatar
Jim Blandy committed
12 13 14 15 16 17 18
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.  */
Jim Blandy's avatar
Jim Blandy committed
19 20

/* This file written by James Van Artsdalen of Dell Computer Corporation.
21 22
 * james@bigtex.cactus.org.  Subsequently improved for Dell 2.2 by Eric
 * S. Raymond <esr@snark.thyrsus.com>.
Jim Blandy's avatar
Jim Blandy committed
23 24 25 26
 */

/* Use the SysVr3 file for at least base configuration. */

27
#include "usg5-3.h"
Jim Blandy's avatar
Jim Blandy committed
28 29 30 31 32 33 34

#define USG5_4

/* We do have multiple jobs.  Handle ^Z. */

#undef NOMULTIPLEJOBS

Richard M. Stallman's avatar
Richard M. Stallman committed
35 36
#define LIBS_SYSTEM -lsocket -lnsl -lelf
#define ORDINARY_LINK
Jim Blandy's avatar
Jim Blandy committed
37

38
#if 0
39 40 41
#ifdef ORDINARY_LINK
#define LIB_STANDARD -lc /usr/ucblib/libucb.a
#else
Richard M. Stallman's avatar
Richard M. Stallman committed
42 43 44
#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
45 46 47 48 49 50 51 52 53
#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
Jim Blandy's avatar
Jim Blandy committed
54

55 56 57 58 59
/* there are no -lg libraries on this system, and no libPW */

#define LIBS_DEBUG
#define LIBS_STANDARD -lc

Jim Blandy's avatar
Jim Blandy committed
60
/* No <sioctl.h> */
Jim Blandy's avatar
Jim Blandy committed
61

Jim Blandy's avatar
Jim Blandy committed
62
#define NO_SIOCTL_H
Jim Blandy's avatar
Jim Blandy committed
63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79

/* 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>
Jim Blandy's avatar
Jim Blandy committed
80 81 82 83
#include <sys/wait.h>
#include <sys/stream.h>
#include <sys/stropts.h>
#include <sys/termios.h>
Jim Blandy's avatar
Jim Blandy committed
84 85 86
#undef SIGIO
#endif

87 88 89 90 91 92 93 94 95
/* 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

Jim Blandy's avatar
Jim Blandy committed
96
/* libc has this stuff, but not utimes. */
Jim Blandy's avatar
Jim Blandy committed
97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118

#define HAVE_SELECT
#define HAVE_TIMEVAL

/* <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
119
#define HAVE_TERMIOS
120 121
#undef BROKEN_TIOCGWINSZ
#undef BROKEN_TIOCGETC
Jim Blandy's avatar
Jim Blandy committed
122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180

/* 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);

181
/* Undo the SVr3 X11 library definition */
182
#undef LIB_X11_LIB
183

Jim Blandy's avatar
Jim Blandy committed
184 185 186 187 188 189
/* 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
Jim Blandy's avatar
Jim Blandy committed
190
#undef LIBX11_SYSTEM
Jim Blandy's avatar
Jim Blandy committed
191 192 193 194 195 196 197

/* 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
198 199 200 201

#define bcopy(src,dst,n)	memcpy(dst,src,n)
#define bcmp(src,dst,n)		memcmp(src,dst,n)
#define bzero(s,n)		memset(s,0,n)