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 NOT_C_CODE
 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 #endif /* not NOT_C_CODE */
 270
 271 #ifndef __GNUC__
 272 #error You must use GCC to compiler Emascs on DGUX
 273 #endif
 274
 275 #define ORDINARY_LINK
 276 #define START_FILES pre-crt0.o
 277 #define LIB_GCC /usr/lib/gcc/libgcc.a
 278
 279 #ifdef _M88KBCS_TARGET
 280 /* Karl Berry says: the environment
 281    recommended by gcc (88/open, a.k.a. m88kbcs) doesn't support some system
 282    functions, and gcc doesn't make it easy to switch environments.  */
 283 #define NO_GET_LOAD_AVG
 284 #endif
 285 \f
 286 /* definitions for xmakefile production */
 287 #ifdef COFF
 288
 289 /* Define the following to use all of the available pty's. */
 290
 291 #define PTY_ITERATION                                           \
 292   for (c = 'p'; c < 't'; c++)                                   \
 293     for (i = 0; (((c == 'p') && (i < 64)) || ((c != 'p') && (i < 16))); i++)
 294
 295 #define PTY_NAME_SPRINTF                                        \
 296       if (c == 'p')                                             \
 297         sprintf (pty_name, "/dev/pty%c%d", c, i);               \
 298       else                                                      \
 299         sprintf (pty_name, "/dev/pty%c%x", c, i);
 300
 301 #define PTY_TTY_NAME_SPRINTF                                    \
 302       if (c == 'p')                                             \
 303         sprintf (pty_name, "/dev/tty%c%d", c, i);               \
 304       else                                                      \
 305         sprintf (pty_name, "/dev/tty%c%x", c, i);
 306
 307 #define C_DEBUG_SWITCH -g
 308
 309 #else /* not COFF */
 310
 311 /* We are generating ELF object format.  This makes the system more
 312    SVR4 like. */
 313
 314 #define SVR4
 315
 316 /* Pseudo-terminal support under SVR4 only loops to deal with errors. */
 317
 318 #define PTY_ITERATION for (i = 0; i < 1; i++)
 319
 320 /* This sets the name of the master side of the PTY. */
 321
 322 #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
 323
 324 /* This sets the name of the slave side of the PTY.  On SysVr4,
 325    grantpt(3) forks a subprocess, so keep sigchld_handler() from
 326    intercepting that death.  If any child but grantpt's should die
 327    within, it should be caught after sigrelse(2). */
 328
 329 #define PTY_TTY_NAME_SPRINTF                    \
 330   {                                             \
 331     char *ptsname(), *ptyname;                  \
 332                                                 \
 333     sigblock(sigmask(SIGCLD));                          \
 334     if (grantpt(fd) == -1)                      \
 335       fatal("could not grant slave pty");       \
 336     sigunblock(sigmask(SIGCLD));                                \
 337     if (unlockpt(fd) == -1)                     \
 338       fatal("could not unlock slave pty");      \
 339     if (!(ptyname = ptsname(fd)))               \
 340       fatal ("could not enable slave pty");     \
 341     strncpy(pty_name, ptyname, sizeof(pty_name)); \
 342     pty_name[sizeof(pty_name) - 1] = 0;         \
 343   }
 344
 345 /* Push various streams modules onto a PTY channel. */
 346
 347 #define SETUP_SLAVE_PTY \
 348   if (ioctl (xforkin, I_PUSH, "ptem") == -1)    \
 349     fatal ("ioctl I_PUSH ptem", errno);         \
 350   if (ioctl (xforkin, I_PUSH, "ldterm") == -1)  \
 351     fatal ("ioctl I_PUSH ldterm", errno);       \
 352   if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) \
 353     fatal ("ioctl I_PUSH ttcompat", errno);
 354
 355 #ifdef __GNUC__
 356 #define C_DEBUG_SWITCH -g -V2 -mversion-03.00 -mstandard
 357 #endif
 358
 359 #endif /* ELF */
 360
 361 /* Extra stuff which probably should be someplace else but is here out
 362    of expediency. */
 363
 364 #define LIB_X11_LIB -lX11
 365 #define LIB_MOTIF -lXm -lgen
 366
 367 /* Process groups work in the traditional BSD manner.  */
 368
 369 #define BSD_PGRPS