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, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 /*
  22  *      Define symbols to identify the version of Unix this is.
  23  *      Define all the symbols that apply correctly.
  24  */
  25
  26 /* #define UNIPLUS */
  27 /* #define USG5 */
  28 /* #define USG */
  29 /* #define HPUX */
  30 /* #define UMAX */
  31 /* #define BSD4_1 */
  32 #define BSD4_2
  33 #define BSD4_3
  34 #define BSD4_4
  35 #define BSD
  36
  37 /* SYSTEM_TYPE should indicate the kind of system you are using.
  38  It sets the Lisp variable system-type.  */
  39
  40 #define SYSTEM_TYPE "dgux"
  41
  42 /* NOMULTIPLEJOBS should be defined if your system's shell
  43  does not have "job control" (the ability to stop a program,
  44  run some other program, then continue the first one).  */
  45
  46 /* #define NOMULTIPLEJOBS */
  47
  48 /* Emacs can read input using SIGIO and buffering characters itself,
  49    or using CBREAK mode and making C-g cause SIGINT.
  50    The choice is controlled by the variable interrupt_input.
  51    Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
  52
  53    SIGIO can be used only on systems that implement it (4.2 and 4.3).
  54    CBREAK mode has two disadvantages
  55      1) At least in 4.2, it is impossible to handle the Meta key properly.
  56         I hear that in system V this problem does not exist.
  57      2) Control-G causes output to be discarded.
  58         I do not know whether this can be fixed in system V.
  59
  60    Another method of doing input is planned but not implemented.
  61    It would have Emacs fork off a separate process
  62    to read the input and send it to the true Emacs process
  63    through a pipe.
  64
  65 */
  66
  67 #define INTERRUPT_INPUT
  68
  69 /*
  70  *      Define HAVE_SOCKETS if the system supports sockets.
  71  */
  72
  73 #define HAVE_SOCKETS
  74
  75 /*
  76  *      Define HAVE_UNIX_DOMAIN if the system supports Unix
  77  *      domain sockets.
  78  */
  79
  80 #define HAVE_UNIX_DOMAIN
  81
  82 /*
  83  *      Define HAVE_PTYS if the system supports pty devices.
  84  */
  85
  86 #define HAVE_PTYS
  87
  88 /* (Assume) we do have vfork.  */
  89
  90 #define HAVE_VFORK
  91
  92 /*
  93  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
  94  *      The 4.2 opendir, etc., library functions.
  95  */
  96
  97 /* #define NONSYSTEM_DIR_LIBRARY */
  98
  99 /* Define this symbol if your system has the functions bcopy, etc. */
 100
 101 #define BSTRING
 102
 103 /* subprocesses should be defined if you want to
 104    have code for asynchronous subprocesses
 105    (as used in M-x compile and M-x shell).
 106    This is generally OS dependent, and not supported
 107    under most USG systems. */
 108
 109 #define subprocesses
 110
 111 /* If your system uses COFF (Common Object File Format) then define the
 112    preprocessor symbol "COFF".
 113
 114    DGUX can use either COFF or ELF; the default is ELF.
 115    To compile for COFF (or BCS) use the TARGET_BINARY_INTERFACE
 116    environment variable.   */
 117
 118 #if defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET)
 119 #undef ELF
 120 #ifndef COFF
 121 #define COFF
 122 #endif  /* COFF */
 123 #else   /* defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET) */
 124 #undef COFF
 125 #ifndef ELF
 126 #define ELF
 127 #endif  /* ELF */
 128 #endif  /* defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET) */
 129
 130 #ifndef COFF /* People will probably find this apparently unreliable
 131                 till the NFS dumping bug is fixed.  */
 132
 133 /* It is possible to undump to ELF with DG/UX 5.4, but for revisions below
 134    5.4.1 the undump MUST be done on a local file system, or the kernel will
 135    panic.  ELF executables have the advantage of using shared libraries,
 136    while COFF executables will still work on 4.2x systems. */
 137
 138 #define UNEXEC unexelf.o
 139
 140 /* This makes sure that all segments in the executable are undumped,
 141    not just text, data, and bss.  In the case of Mxdb and shared
 142    libraries, additional information is stored in other sections.
 143    It does not hurt to have this defined if you don't use Mxdb or
 144    shared libraries.  In fact, it makes no difference. */
 145
 146 /* Necessary for shared libraries and Mxdb debugging information. */
 147 #define USG_SHARED_LIBRARIES
 148 #endif
 149
 150 /* define MAIL_USE_FLOCK if the mailer uses flock
 151    to interlock access to /usr/spool/mail/$USER.
 152    The alternative is that a lock file named
 153    /usr/spool/mail/$USER.lock.  */
 154
 155 /* #define MAIL_USE_FLOCK */
 156
 157 /* Define CLASH_DETECTION if you want lock files to be written
 158    so that Emacs can tell instantly when you try to modify
 159    a file that someone else has modified in his Emacs.  */
 160
 161 /* #define CLASH_DETECTION */
 162
 163 /* Define a replacement for the baud rate switch, since DG/UX uses a different
 164    from BSD.  */
 165
 166 #define BAUD_CONVERT    { 0, 110, 134, 150, 300, 600, 1200, 1800, 2400, \
 167                           4800, 9600, 19200, 38400 }
 168
 169 /*
 170  *      Define NLIST_STRUCT if the system has nlist.h
 171  */
 172
 173 #define NLIST_STRUCT
 174
 175 /*
 176  *      Make WM Interface Compliant.
 177  */
 178
 179 #define XICCC
 180
 181 /* Here, on a separate page, add any special hacks needed
 182    to make Emacs work on this system.  For example,
 183    you might define certain system call names that don't
 184    exist on your system, or that do different things on
 185    your system and must be used only through an encapsulation
 186    (Which you should place, by convention, in sysdep.c).  */
 187 \f
 188 /* Some compilers tend to put everything declared static
 189    into the initialized data area, which becomes pure after dumping Emacs.
 190    On these systems, you must #define static as nothing to foil this.
 191    Note that emacs carefully avoids static vars inside functions.  */
 192
 193 /* #define static */
 194
 195 /* DG/UX SPECIFIC ADDITIONS TO TEMPLATE FOLLOW: */
 196
 197 /* Use the Berkeley flavors of the library routines, instead of System V.  */
 198
 199 #define setpgrp(pid,pgrp) setpgrp2(pid,pgrp)
 200 #define getpgrp(pid) getpgrp2(pid)
 201
 202 /* Act like Berkeley. */
 203
 204 #define _setjmp(env) sigsetjmp(env,0)
 205 #define _longjmp(env,val) longjmp(env,val)
 206
 207 /* Use TERMINFO instead of termcap */
 208
 209 #define TERMINFO
 210
 211 /*
 212  *      Send signals to subprocesses using characters.
 213  *
 214  */
 215
 216 #define SIGNALS_VIA_CHARACTERS
 217
 218 /*
 219  *      Define HAVE_TERMIOS since this is POSIX,
 220  *      for terminal control.  Prevent redundant inclusion of termio.h.
 221  */
 222
 223 #define HAVE_TERMIOS
 224 #define NO_TERMIO
 225
 226 /*
 227  *      Use a Berkeley style sys/wait.h.
 228  *      This makes WIF* macros operate on structures instead of ints.
 229  */
 230
 231 #define _BSD_WAIT_FLAVOR
 232
 233 /*
 234  *      Use BSD and POSIX-style signals.  This is crucial!
 235  */
 236
 237 /* #define SYSTEM_MALLOC */
 238
 239 /* MAKING_MAKEFILE must be defined in "ymakefile" before including config.h */
 240 #ifndef THIS_IS_YMAKEFILE
 241
 242 /* Make sure signal.h is included so macros below don't mess with it. */
 243 /* DG/UX include files prevent multiple inclusion. */
 244
 245 #include <signal.h>
 246
 247 /* but undefine the sigmask and sigpause macros since they will get
 248    #define'd later. */
 249 #undef sigmask
 250 #undef sigpause
 251
 252 #define POSIX_SIGNALS
 253
 254 /* Define this if you use System 5 Release 4 Streams */
 255 #define open  sys_open
 256 #define close sys_close
 257 #define read  sys_read
 258 #define write sys_write
 259
 260 #define INTERRUPTIBLE_OPEN
 261 #define INTERRUPTIBLE_CLOSE
 262 /* can't hurt to define these, even though read/write should auto restart */
 263 #define INTERRUPTIBLE_IO
 264
 265 /* Can't use sys_signal because then etc/server.c would need sysdep.o.  */
 266 extern struct sigaction act, oact;
 267 #define signal(SIG,FUNC) berk_signal(SIG,FUNC)
 268
 269 #else /* THIS_IS_YMAKEFILE */
 270 /* force gcc to be used */
 271 CC=gcc
 272 #endif /* not THIS_IS_YMAKEFILE */
 273
 274 #define ORDINARY_LINK
 275 #define START_FILES pre-crt0.o
 276 #define LIB_GCC /usr/lib/gcc/libgcc.a
 277
 278 #ifdef _M88KBCS_TARGET
 279 /* Karl Berry says: the environment
 280    recommended by gcc (88/open, a.k.a. m88kbcs) doesn't support some system
 281    functions, and gcc doesn't make it easy to switch environments.  */
 282 #define NO_GET_LOAD_AVG
 283 #endif
 284 \f
 285 /* definitions for xmakefile production */
 286 #ifdef COFF
 287
 288 /* Define the following to use all of the available pty's. */
 289
 290 #define PTY_ITERATION                                           \
 291   for (c = 'p'; c < 't'; c++)                                   \
 292     for (i = 0; (((c == 'p') && (i < 64)) || ((c != 'p') && (i < 16))); i++)
 293
 294 #define PTY_NAME_SPRINTF                                        \
 295       if (c == 'p')                                             \
 296         sprintf (pty_name, "/dev/pty%c%d", c, i);               \
 297       else                                                      \
 298         sprintf (pty_name, "/dev/pty%c%x", c, i);
 299
 300 #define PTY_TTY_NAME_SPRINTF                                    \
 301       if (c == 'p')                                             \
 302         sprintf (pty_name, "/dev/tty%c%d", c, i);               \
 303       else                                                      \
 304         sprintf (pty_name, "/dev/tty%c%x", c, i);
 305
 306 #define C_DEBUG_SWITCH -g
 307
 308 #else /* not COFF */
 309
 310 /* We are generating ELF object format.  This makes the system more
 311    SVR4 like. */
 312
 313 #define SVR4
 314
 315 /* Pseudo-terminal support under SVR4 only loops to deal with errors. */
 316
 317 #define PTY_ITERATION for (i = 0; i < 1; i++)
 318
 319 /* This sets the name of the master side of the PTY. */
 320
 321 #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
 322
 323 /* This sets the name of the slave side of the PTY.  On SysVr4,
 324    grantpt(3) forks a subprocess, so keep sigchld_handler() from
 325    intercepting that death.  If any child but grantpt's should die
 326    within, it should be caught after sigrelse(2). */
 327
 328 #define PTY_TTY_NAME_SPRINTF                    \
 329   {                                             \
 330     char *ptsname(), *ptyname;                  \
 331                                                 \
 332     sigblock(sigmask(SIGCLD));                          \
 333     if (grantpt(fd) == -1)                      \
 334       fatal("could not grant slave pty");       \
 335     sigunblock(sigmask(SIGCLD));                                \
 336     if (unlockpt(fd) == -1)                     \
 337       fatal("could not unlock slave pty");      \
 338     if (!(ptyname = ptsname(fd)))               \
 339       fatal ("could not enable slave pty");     \
 340     strncpy(pty_name, ptyname, sizeof(pty_name)); \
 341     pty_name[sizeof(pty_name) - 1] = 0;         \
 342   }
 343
 344 /* Push various streams modules onto a PTY channel. */
 345
 346 #define SETUP_SLAVE_PTY \
 347   if (ioctl (xforkin, I_PUSH, "ptem") == -1)    \
 348     fatal ("ioctl I_PUSH ptem", errno);         \
 349   if (ioctl (xforkin, I_PUSH, "ldterm") == -1)  \
 350     fatal ("ioctl I_PUSH ldterm", errno);       \
 351   if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) \
 352     fatal ("ioctl I_PUSH ttcompat", errno);
 353
 354 #ifdef __GNUC__
 355 #define C_DEBUG_SWITCH -g -V2 -mversion-03.00 -mstandard
 356 #endif
 357
 358 #endif /* ELF */
 359
 360 /* Extra stuff which probably should be someplace else but is here out
 361    of expediency. */
 362
 363 #define LIB_X11_LIB -lX11
 364 #define LIB_MOTIF -lXm -lgen
 365
 366 /* Process groups work in the traditional BSD manner.  */
 367
 368 #define BSD_PGRPS