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_TIMEVAL if the system supports the BSD style clock values.
  71  *      Look in <sys/time.h> for a timeval structure.
  72  */
  73
  74 #define HAVE_TIMEVAL
  75
  76 /*
  77  *      Define HAVE_SELECT if the system supports the `select' system call.
  78  */
  79
  80 #define HAVE_SELECT
  81
  82 /*
  83  *      Define HAVE_SOCKETS if the system supports sockets.
  84  */
  85
  86 #define HAVE_SOCKETS
  87
  88 /*
  89  *      Define HAVE_UNIX_DOMAIN if the system supports Unix
  90  *      domain sockets.
  91  */
  92
  93 #define HAVE_UNIX_DOMAIN
  94
  95 /*
  96  *      Define HAVE_PTYS if the system supports pty devices.
  97  */
  98
  99 #define HAVE_PTYS
 100
 101 /* (Assume) we do have vfork.  */
 102
 103 #define HAVE_VFORK
 104
 105 /*
 106  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
 107  *      The 4.2 opendir, etc., library functions.
 108  */
 109
 110 /* #define NONSYSTEM_DIR_LIBRARY */
 111
 112 /* Define this symbol if your system has the functions bcopy, etc. */
 113
 114 #define BSTRING
 115
 116 /* subprocesses should be defined if you want to
 117    have code for asynchronous subprocesses
 118    (as used in M-x compile and M-x shell).
 119    This is generally OS dependent, and not supported
 120    under most USG systems. */
 121
 122 #define subprocesses
 123
 124 /* If your system uses COFF (Common Object File Format) then define the
 125    preprocessor symbol "COFF".
 126
 127    DGUX can use either COFF or ELF; the default is ELF.
 128    To compile for COFF (or BCS) use the TARGET_BINARY_INTERFACE
 129    environment variable.   */
 130
 131 #if defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET)
 132 #undef ELF
 133 #ifndef COFF
 134 #define COFF
 135 #endif  /* COFF */
 136 #else   /* defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET) */
 137 #undef COFF
 138 #ifndef ELF
 139 #define ELF
 140 #endif  /* ELF */
 141 #endif  /* defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET) */
 142
 143 #ifndef COFF /* People will probably find this apparently unreliable
 144                 till the NFS dumping bug is fixed.  */
 145
 146 /* It is possible to undump to ELF with DG/UX 5.4, but for revisions below
 147    5.4.1 the undump MUST be done on a local file system, or the kernel will
 148    panic.  ELF executables have the advantage of using shared libraries,
 149    while COFF executables will still work on 4.2x systems. */
 150
 151 #define UNEXEC unexelf.o
 152
 153 /* This makes sure that all segments in the executable are undumped,
 154    not just text, data, and bss.  In the case of Mxdb and shared
 155    libraries, additional information is stored in other sections.
 156    It does not hurt to have this defined if you don't use Mxdb or
 157    shared libraries.  In fact, it makes no difference. */
 158
 159 /* Necessary for shared libraries and Mxdb debugging information. */
 160 #define USG_SHARED_LIBRARIES
 161 #endif
 162
 163 /* define MAIL_USE_FLOCK if the mailer uses flock
 164    to interlock access to /usr/spool/mail/$USER.
 165    The alternative is that a lock file named
 166    /usr/spool/mail/$USER.lock.  */
 167
 168 /* #define MAIL_USE_FLOCK */
 169
 170 /* Define CLASH_DETECTION if you want lock files to be written
 171    so that Emacs can tell instantly when you try to modify
 172    a file that someone else has modified in his Emacs.  */
 173
 174 /* #define CLASH_DETECTION */
 175
 176 /* Define a replacement for the baud rate switch, since DG/UX uses a different
 177    from BSD.  */
 178
 179 #define BAUD_CONVERT    { 0, 110, 134, 150, 300, 600, 1200, 1800, 2400, \
 180                           4800, 9600, 19200, 38400 }
 181
 182 /*
 183  *      Define NLIST_STRUCT if the system has nlist.h
 184  */
 185
 186 #define NLIST_STRUCT
 187
 188 /*
 189  *      Make WM Interface Compliant.
 190  */
 191
 192 #define XICCC
 193
 194 /* Here, on a separate page, add any special hacks needed
 195    to make Emacs work on this system.  For example,
 196    you might define certain system call names that don't
 197    exist on your system, or that do different things on
 198    your system and must be used only through an encapsulation
 199    (Which you should place, by convention, in sysdep.c).  */
 200 \f
 201 /* Some compilers tend to put everything declared static
 202    into the initialized data area, which becomes pure after dumping Emacs.
 203    On these systems, you must #define static as nothing to foil this.
 204    Note that emacs carefully avoids static vars inside functions.  */
 205
 206 /* #define static */
 207
 208 /* DG/UX SPECIFIC ADDITIONS TO TEMPLATE FOLLOW: */
 209
 210 /* Use the Berkeley flavors of the library routines, instead of System V.  */
 211
 212 #define setpgrp(pid,pgrp) setpgrp2(pid,pgrp)
 213 #define getpgrp(pid) getpgrp2(pid)
 214
 215 /* Act like Berkeley. */
 216
 217 #define _setjmp(env) sigsetjmp(env,0)
 218 #define _longjmp(env,val) longjmp(env,val)
 219
 220 /* Use TERMINFO instead of termcap */
 221
 222 #define TERMINFO
 223
 224 /*
 225  *      Send signals to subprocesses using characters.
 226  *
 227  */
 228
 229 #define SIGNALS_VIA_CHARACTERS
 230
 231 /*
 232  *      Define HAVE_TERMIOS since this is POSIX,
 233  *      for terminal control.  Prevent redundant inclusion of termio.h.
 234  */
 235
 236 #define HAVE_TERMIOS
 237 #define NO_TERMIO
 238
 239 /*
 240  *      Use a Berkeley style sys/wait.h.
 241  *      This makes WIF* macros operate on structures instead of ints.
 242  */
 243
 244 #define _BSD_WAIT_FLAVOR
 245
 246 /*
 247  *      Use BSD and POSIX-style signals.  This is crucial!
 248  */
 249
 250 /* #define SYSTEM_MALLOC */
 251
 252 /* MAKING_MAKEFILE must be defined in "ymakefile" before including config.h */
 253 #ifndef THIS_IS_YMAKEFILE
 254
 255 /* Make sure signal.h is included so macros below don't mess with it. */
 256 /* DG/UX include files prevent multiple inclusion. */
 257
 258 #include <signal.h>
 259
 260 /* but undefine the sigmask and sigpause macros since they will get
 261    #define'd later. */
 262 #undef sigmask
 263 #undef sigpause
 264
 265 #define POSIX_SIGNALS
 266
 267 /* Define this if you use System 5 Release 4 Streams */
 268 #define open  sys_open
 269 #define close sys_close
 270 #define read  sys_read
 271 #define write sys_write
 272
 273 #define INTERRUPTIBLE_OPEN
 274 #define INTERRUPTIBLE_CLOSE
 275 /* can't hurt to define these, even though read/write should auto restart */
 276 #define INTERRUPTIBLE_IO
 277
 278 /* Can't use sys_signal because then etc/server.c would need sysdep.o.  */
 279 extern struct sigaction act, oact;
 280 #define signal(SIG,FUNC) berk_signal(SIG,FUNC)
 281
 282 #else /* THIS_IS_YMAKEFILE */
 283 /* force gcc to be used */
 284 CC=gcc
 285 #endif /* not THIS_IS_YMAKEFILE */
 286
 287 #define ORDINARY_LINK
 288 #define START_FILES pre-crt0.o
 289 #define LIB_GCC /usr/lib/gcc/libgcc.a
 290
 291 #ifdef _M88KBCS_TARGET
 292 /* Karl Berry says: the environment
 293    recommended by gcc (88/open, a.k.a. m88kbcs) doesn't support some system
 294    functions, and gcc doesn't make it easy to switch environments.  */
 295 #define NO_GET_LOAD_AVG
 296 #endif
 297 \f
 298 /* definitions for xmakefile production */
 299 #ifdef COFF
 300
 301 /* Define the following to use all of the available pty's. */
 302
 303 #define PTY_ITERATION                                           \
 304   for (c = 'p'; c < 't'; c++)                                   \
 305     for (i = 0; (((c == 'p') && (i < 64)) || ((c != 'p') && (i < 16))); i++)
 306
 307 #define PTY_NAME_SPRINTF                                        \
 308       if (c == 'p')                                             \
 309         sprintf (pty_name, "/dev/pty%c%d", c, i);               \
 310       else                                                      \
 311         sprintf (pty_name, "/dev/pty%c%x", c, i);
 312
 313 #define PTY_TTY_NAME_SPRINTF                                    \
 314       if (c == 'p')                                             \
 315         sprintf (pty_name, "/dev/tty%c%d", c, i);               \
 316       else                                                      \
 317         sprintf (pty_name, "/dev/tty%c%x", c, i);
 318
 319 #define C_DEBUG_SWITCH -g
 320
 321 #else /* not COFF */
 322
 323 /* We are generating ELF object format.  This makes the system more
 324    SVR4 like. */
 325
 326 #define SVR4
 327
 328 /* Pseudo-terminal support under SVR4 only loops to deal with errors. */
 329
 330 #define PTY_ITERATION for (i = 0; i < 1; i++)
 331
 332 /* This sets the name of the master side of the PTY. */
 333
 334 #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
 335
 336 /* This sets the name of the slave side of the PTY.  On SysVr4,
 337    grantpt(3) forks a subprocess, so keep sigchld_handler() from
 338    intercepting that death.  If any child but grantpt's should die
 339    within, it should be caught after sigrelse(2). */
 340
 341 #define PTY_TTY_NAME_SPRINTF                    \
 342   {                                             \
 343     char *ptsname(), *ptyname;                  \
 344                                                 \
 345     sigblock(sigmask(SIGCLD));                          \
 346     if (grantpt(fd) == -1)                      \
 347       fatal("could not grant slave pty");       \
 348     sigunblock(sigmask(SIGCLD));                                \
 349     if (unlockpt(fd) == -1)                     \
 350       fatal("could not unlock slave pty");      \
 351     if (!(ptyname = ptsname(fd)))               \
 352       fatal ("could not enable slave pty");     \
 353     strncpy(pty_name, ptyname, sizeof(pty_name)); \
 354     pty_name[sizeof(pty_name) - 1] = 0;         \
 355   }
 356
 357 /* Push various streams modules onto a PTY channel. */
 358
 359 #define SETUP_SLAVE_PTY \
 360   if (ioctl (xforkin, I_PUSH, "ptem") == -1)    \
 361     fatal ("ioctl I_PUSH ptem", errno);         \
 362   if (ioctl (xforkin, I_PUSH, "ldterm") == -1)  \
 363     fatal ("ioctl I_PUSH ldterm", errno);       \
 364   if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) \
 365     fatal ("ioctl I_PUSH ttcompat", errno);
 366
 367 #define C_DEBUG_SWITCH -g -V2 -mversion-03.00 -mstandard
 368
 369 #endif /* ELF */
 370
 371 /* Extra stuff which probably should be someplace else but is here out
 372    of expediency. */
 373
 374 #define LIB_X11_LIB -lX11
 375
 376 /* Process groups work in the traditional BSD manner.  */
 377
 378 #define BSD_PGRPS