src/s/dgux.h

   1 /* Definitions file for GNU Emacs running on Data General's DG/UX
   2    version 4.32 upto and including 5.4.1.
   3    Copyright (C) 1994 Free Software Foundation, Inc.
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs; see the file COPYING.  If not, write to
  19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 /*
  23  *      Define symbols to identify the version of Unix this is.
  24  *      Define all the symbols that apply correctly.
  25  */
  26
  27 /* #define UNIPLUS */
  28 /* #define USG5 */
  29 /* #define USG */
  30 /* #define HPUX */
  31 /* #define UMAX */
  32 /* #define BSD4_1 */
  33 #define BSD4_2
  34 #define BSD4_3
  35 #define BSD4_4
  36 #define BSD
  37
  38 /* SYSTEM_TYPE should indicate the kind of system you are using.
  39  It sets the Lisp variable system-type.  */
  40
  41 #define SYSTEM_TYPE "dgux"
  42
  43 /* NOMULTIPLEJOBS should be defined if your system's shell
  44  does not have "job control" (the ability to stop a program,
  45  run some other program, then continue the first one).  */
  46
  47 /* #define NOMULTIPLEJOBS */
  48
  49 /* Emacs can read input using SIGIO and buffering characters itself,
  50    or using CBREAK mode and making C-g cause SIGINT.
  51    The choice is controlled by the variable interrupt_input.
  52    Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
  53
  54    SIGIO can be used only on systems that implement it (4.2 and 4.3).
  55    CBREAK mode has two disadvantages
  56      1) At least in 4.2, it is impossible to handle the Meta key properly.
  57         I hear that in system V this problem does not exist.
  58      2) Control-G causes output to be discarded.
  59         I do not know whether this can be fixed in system V.
  60
  61    Another method of doing input is planned but not implemented.
  62    It would have Emacs fork off a separate process
  63    to read the input and send it to the true Emacs process
  64    through a pipe.
  65
  66 */
  67
  68 #define INTERRUPT_INPUT
  69
  70 /*
  71  *      Define HAVE_SOCKETS if the system supports sockets.
  72  */
  73
  74 #define HAVE_SOCKETS
  75
  76 /*
  77  *      Define HAVE_UNIX_DOMAIN if the system supports Unix
  78  *      domain sockets.
  79  */
  80
  81 #define HAVE_UNIX_DOMAIN
  82
  83 /*
  84  *      Define HAVE_PTYS if the system supports pty devices.
  85  */
  86
  87 #define HAVE_PTYS
  88
  89 /* (Assume) we do have vfork.  */
  90
  91 #define HAVE_VFORK
  92
  93 /*
  94  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
  95  *      The 4.2 opendir, etc., library functions.
  96  */
  97
  98 /* #define NONSYSTEM_DIR_LIBRARY */
  99
 100 /* Define this symbol if your system has the functions bcopy, etc. */
 101
 102 #define BSTRING
 103
 104 /* subprocesses should be defined if you want to
 105    have code for asynchronous subprocesses
 106    (as used in M-x compile and M-x shell).
 107    This is generally OS dependent, and not supported
 108    under most USG systems. */
 109
 110 #define subprocesses
 111
 112 /* If your system uses COFF (Common Object File Format) then define the
 113    preprocessor symbol "COFF".
 114
 115    DGUX can use either COFF or ELF; the default is ELF.
 116    To compile for COFF (or BCS) use the TARGET_BINARY_INTERFACE
 117    environment variable.   */
 118
 119 #if defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET)
 120 #undef ELF
 121 #ifndef COFF
 122 #define COFF
 123 #endif  /* COFF */
 124 #else   /* defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET) */
 125 #undef COFF
 126 #ifndef ELF
 127 #define ELF
 128 #endif  /* ELF */
 129 #endif  /* defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET) */
 130
 131 #ifndef COFF /* People will probably find this apparently unreliable
 132                 till the NFS dumping bug is fixed.  */
 133
 134 /* It is possible to undump to ELF with DG/UX 5.4, but for revisions below
 135    5.4.1 the undump MUST be done on a local file system, or the kernel will
 136    panic.  ELF executables have the advantage of using shared libraries,
 137    while COFF executables will still work on 4.2x systems. */
 138
 139 #define UNEXEC unexelf.o
 140
 141 /* This makes sure that all segments in the executable are undumped,
 142    not just text, data, and bss.  In the case of Mxdb and shared
 143    libraries, additional information is stored in other sections.
 144    It does not hurt to have this defined if you don't use Mxdb or
 145    shared libraries.  In fact, it makes no difference. */
 146
 147 /* Necessary for shared libraries and Mxdb debugging information. */
 148 #define USG_SHARED_LIBRARIES
 149 #endif
 150
 151 /* define MAIL_USE_FLOCK if the mailer uses flock
 152    to interlock access to /usr/spool/mail/$USER.
 153    The alternative is that a lock file named
 154    /usr/spool/mail/$USER.lock.  */
 155
 156 /* #define MAIL_USE_FLOCK */
 157
 158 /* Define CLASH_DETECTION if you want lock files to be written
 159    so that Emacs can tell instantly when you try to modify
 160    a file that someone else has modified in his Emacs.  */
 161
 162 /* #define CLASH_DETECTION */
 163
 164 /* Define a replacement for the baud rate switch, since DG/UX uses a different
 165    from BSD.  */
 166
 167 #define BAUD_CONVERT    { 0, 110, 134, 150, 300, 600, 1200, 1800, 2400, \
 168                           4800, 9600, 19200, 38400 }
 169
 170 /*
 171  *      Define NLIST_STRUCT if the system has nlist.h
 172  */
 173
 174 #define NLIST_STRUCT
 175
 176 /*
 177  *      Make WM Interface Compliant.
 178  */
 179
 180 #define XICCC
 181
 182 /* Here, on a separate page, add any special hacks needed
 183    to make Emacs work on this system.  For example,
 184    you might define certain system call names that don't
 185    exist on your system, or that do different things on
 186    your system and must be used only through an encapsulation
 187    (Which you should place, by convention, in sysdep.c).  */
 188 \f
 189 /* Some compilers tend to put everything declared static
 190    into the initialized data area, which becomes pure after dumping Emacs.
 191    On these systems, you must #define static as nothing to foil this.
 192    Note that emacs carefully avoids static vars inside functions.  */
 193
 194 /* #define static */
 195
 196 /* DG/UX SPECIFIC ADDITIONS TO TEMPLATE FOLLOW: */
 197
 198 /* Use the Berkeley flavors of the library routines, instead of System V.  */
 199
 200 #define setpgrp(pid,pgrp) setpgrp2(pid,pgrp)
 201 #define getpgrp(pid) getpgrp2(pid)
 202
 203 /* Act like Berkeley. */
 204
 205 #define _setjmp(env) sigsetjmp(env,0)
 206 #define _longjmp(env,val) longjmp(env,val)
 207
 208 /* Use TERMINFO instead of termcap */
 209
 210 #define TERMINFO
 211
 212 /*
 213  *      Send signals to subprocesses using characters.
 214  *
 215  */
 216
 217 #define SIGNALS_VIA_CHARACTERS
 218
 219 /*
 220  *      Define HAVE_TERMIOS since this is POSIX,
 221  *      for terminal control.  Prevent redundant inclusion of termio.h.
 222  */
 223
 224 #define HAVE_TERMIOS
 225 #define NO_TERMIO
 226
 227 /*
 228  *      Use a Berkeley style sys/wait.h.
 229  *      This makes WIF* macros operate on structures instead of ints.
 230  */
 231
 232 #define _BSD_WAIT_FLAVOR
 233
 234 /*
 235  *      Use BSD and POSIX-style signals.  This is crucial!
 236  */
 237
 238 /* #define SYSTEM_MALLOC */
 239
 240 /* MAKING_MAKEFILE must be defined in "ymakefile" before including config.h */
 241 #ifndef NOT_C_CODE
 242
 243 /* Make sure signal.h is included so macros below don't mess with it. */
 244 /* DG/UX include files prevent multiple inclusion. */
 245
 246 #include <signal.h>
 247
 248 /* but undefine the sigmask and sigpause macros since they will get
 249    #define'd later. */
 250 #undef sigmask
 251 #undef sigpause
 252
 253 #define POSIX_SIGNALS
 254
 255 /* Define this if you use System 5 Release 4 Streams */
 256 #define open  sys_open
 257 #define close sys_close
 258 #define read  sys_read
 259 #define write sys_write
 260
 261 #define INTERRUPTIBLE_OPEN
 262 #define INTERRUPTIBLE_CLOSE
 263 /* can't hurt to define these, even though read/write should auto restart */
 264 #define INTERRUPTIBLE_IO
 265
 266 /* Can't use sys_signal because then etc/server.c would need sysdep.o.  */
 267 extern struct sigaction act, oact;
 268 #define signal(SIG,FUNC) berk_signal(SIG,FUNC)
 269
 270 #endif /* not NOT_C_CODE */
 271
 272 #ifndef __GNUC__
 273 #error You must use GCC to compiler Emascs on DGUX
 274 #endif
 275
 276 #define ORDINARY_LINK
 277 #define START_FILES pre-crt0.o
 278 #define LIB_GCC /usr/lib/gcc/libgcc.a
 279
 280 #ifdef _M88KBCS_TARGET
 281 /* Karl Berry says: the environment
 282    recommended by gcc (88/open, a.k.a. m88kbcs) doesn't support some system
 283    functions, and gcc doesn't make it easy to switch environments.  */
 284 #define NO_GET_LOAD_AVG
 285 #endif
 286 \f
 287 /* definitions for xmakefile production */
 288 #ifdef COFF
 289
 290 /* Define the following to use all of the available pty's. */
 291
 292 #define PTY_ITERATION                                           \
 293   for (c = 'p'; c < 't'; c++)                                   \
 294     for (i = 0; (((c == 'p') && (i < 64)) || ((c != 'p') && (i < 16))); i++)
 295
 296 #define PTY_NAME_SPRINTF                                        \
 297       if (c == 'p')                                             \
 298         sprintf (pty_name, "/dev/pty%c%d", c, i);               \
 299       else                                                      \
 300         sprintf (pty_name, "/dev/pty%c%x", c, i);
 301
 302 #define PTY_TTY_NAME_SPRINTF                                    \
 303       if (c == 'p')                                             \
 304         sprintf (pty_name, "/dev/tty%c%d", c, i);               \
 305       else                                                      \
 306         sprintf (pty_name, "/dev/tty%c%x", c, i);
 307
 308 #define C_DEBUG_SWITCH -g
 309
 310 #else /* not COFF */
 311
 312 /* We are generating ELF object format.  This makes the system more
 313    SVR4 like. */
 314
 315 #define SVR4
 316
 317 /* Pseudo-terminal support under SVR4 only loops to deal with errors. */
 318
 319 #define PTY_ITERATION for (i = 0; i < 1; i++)
 320
 321 /* This sets the name of the master side of the PTY. */
 322
 323 #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
 324
 325 /* This sets the name of the slave side of the PTY.  On SysVr4,
 326    grantpt(3) forks a subprocess, so keep sigchld_handler() from
 327    intercepting that death.  If any child but grantpt's should die
 328    within, it should be caught after sigrelse(2). */
 329
 330 #define PTY_TTY_NAME_SPRINTF                    \
 331   {                                             \
 332     char *ptsname(), *ptyname;                  \
 333                                                 \
 334     sigblock(sigmask(SIGCLD));                          \
 335     if (grantpt(fd) == -1)                      \
 336       fatal("could not grant slave pty");       \
 337     sigunblock(sigmask(SIGCLD));                                \
 338     if (unlockpt(fd) == -1)                     \
 339       fatal("could not unlock slave pty");      \
 340     if (!(ptyname = ptsname(fd)))               \
 341       fatal ("could not enable slave pty");     \
 342     strncpy(pty_name, ptyname, sizeof(pty_name)); \
 343     pty_name[sizeof(pty_name) - 1] = 0;         \
 344   }
 345
 346 /* Push various streams modules onto a PTY channel. */
 347
 348 #define SETUP_SLAVE_PTY \
 349   if (ioctl (xforkin, I_PUSH, "ptem") == -1)    \
 350     fatal ("ioctl I_PUSH ptem", errno);         \
 351   if (ioctl (xforkin, I_PUSH, "ldterm") == -1)  \
 352     fatal ("ioctl I_PUSH ldterm", errno);       \
 353   if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) \
 354     fatal ("ioctl I_PUSH ttcompat", errno);
 355
 356 #ifdef __GNUC__
 357 #define C_DEBUG_SWITCH -g -V2 -mversion-03.00 -mstandard
 358 #endif
 359
 360 #endif /* ELF */
 361
 362 /* Extra stuff which probably should be someplace else but is here out
 363    of expediency. */
 364
 365 #define LIB_X11_LIB -lX11
 366 #define LIB_MOTIF -lXm -lgen
 367
 368 /* Process groups work in the traditional BSD manner.  */
 369
 370 #define BSD_PGRPS