code.delx.au - gnu-emacs/blob - src/s/dgux.h

   1 /* Definitions file for GNU Emacs running on Data General's DG/UX
   2    version 4.32 and above.
   3    Copyright (C) 1985, 1986, 1991 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 /*
  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 #define SVR4
  38
  39 /* SYSTEM_TYPE should indicate the kind of system you are using.
  40  It sets the Lisp variable system-type.  */
  41
  42 #define SYSTEM_TYPE "dgc-unix"
  43
  44 /* NOMULTIPLEJOBS should be defined if your system's shell
  45  does not have "job control" (the ability to stop a program,
  46  run some other program, then continue the first one).  */
  47
  48 /* #define NOMULTIPLEJOBS */
  49
  50 /* Emacs can read input using SIGIO and buffering characters itself,
  51    or using CBREAK mode and making C-g cause SIGINT.
  52    The choice is controlled by the variable interrupt_input.
  53    Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
  54
  55    SIGIO can be used only on systems that implement it (4.2 and 4.3).
  56    CBREAK mode has two disadvantages
  57      1) At least in 4.2, it is impossible to handle the Meta key properly.
  58         I hear that in system V this problem does not exist.
  59      2) Control-G causes output to be discarded.
  60         I do not know whether this can be fixed in system V.
  61
  62    Another method of doing input is planned but not implemented.
  63    It would have Emacs fork off a separate process
  64    to read the input and send it to the true Emacs process
  65    through a pipe.
  66 */
  67
  68 #define INTERRUPT_INPUT
  69
  70 /* Letter to use in finding device name of first pty,
  71   if system supports pty's.  'a' means it is /dev/ptya0  */
  72
  73 #define FIRST_PTY_LETTER 'p'
  74
  75 /*
  76  *      Define HAVE_TIMEVAL if the system supports the BSD style clock values.
  77  *      Look in <sys/time.h> for a timeval structure.
  78  */
  79
  80 #define HAVE_TIMEVAL
  81
  82 /*
  83  *      Define HAVE_SELECT if the system supports the `select' system call.
  84  */
  85
  86 #define HAVE_SELECT
  87
  88 /*
  89  *      Define HAVE_SETSID if the system supports POSIX disassociate
  90  *      terminal.
  91  */
  92 #define HAVE_SETSID
  93 /*
  94  *      Define HAVE_SOCKETS if the system supports sockets.
  95  */
  96
  97 #define HAVE_SOCKETS
  98
  99 /*
 100  *      Define HAVE_UNIX_DOMAIN if the system supports Unix
 101  *      domain sockets.
 102  */
 103 #define HAVE_UNIX_DOMAIN
 104 /*
 105  *      Define HAVE_PTYS if the system supports pty devices.
 106  */
 107
 108 #define HAVE_PTYS
 109
 110 /*
 111  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
 112  *      The 4.2 opendir, etc., library functions.
 113  */
 114
 115 /* #define NONSYSTEM_DIR_LIBRARY */
 116
 117 /* Define this symbol if your system has the functions bcopy, etc. */
 118
 119 #define BSTRING
 120
 121 /* subprocesses should be defined if you want to
 122    have code for asynchronous subprocesses
 123    (as used in M-x compile and M-x shell).
 124    This is generally OS dependent, and not supported
 125    under most USG systems. */
 126
 127 #define subprocesses
 128
 129 /* If your system uses COFF (Common Object File Format) then define the
 130    preprocessor symbol "COFF".
 131
 132    DGUX can use either COFF or ELF; the default is ELF.
 133    To compile for COFF (or BCS) use the TARGET_BINARY_INTERFACE
 134    environment variable.   */
 135
 136 #if defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET)
 137 #undef ELF
 138 #ifndef COFF
 139 #define COFF
 140 #endif  /* COFF */
 141 #else   /* defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET) */
 142 #undef COFF
 143 #ifndef ELF
 144 #define ELF
 145 #endif  /* ELF */
 146 #endif  /* defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET) */
 147
 148 #ifndef COFF /* People will probably find this apparently unreliable
 149                 till the NFS dumping bug is fixed.  */
 150
 151 /* It is possible to undump to ELF with DG/UX 5.4, but for revisions below
 152    5.4.1 the undump MUST be done on a local file system, or the kernel will
 153    panic.  ELF executables have the advantage of using shared libraries,
 154    while COFF executables will still work on 4.2x systems. */
 155
 156 #define UNEXEC unexelf.o
 157
 158 /* This makes sure that all segments in the executable are undumped,
 159    not just text, data, and bss.  In the case of Mxdb and shared
 160    libraries, additional information is stored in other sections.
 161    It does not hurt to have this defined if you don't use Mxdb or
 162    shared libraries.  In fact, it makes no difference. */
 163
 164 /* Necessary for shared libraries and Mxdb debugging information. */
 165 #define USG_SHARED_LIBRARIES
 166 #endif
 167
 168 /* define MAIL_USE_FLOCK if the mailer uses flock
 169    to interlock access to /usr/spool/mail/$USER.
 170    The alternative is that a lock file named
 171    /usr/spool/mail/$USER.lock.  */
 172
 173 /* #define MAIL_USE_FLOCK */
 174
 175 /* Define CLASH_DETECTION if you want lock files to be written
 176    so that Emacs can tell instantly when you try to modify
 177    a file that someone else has modified in his Emacs.  */
 178
 179 /* #define CLASH_DETECTION */
 180
 181 /* Define a replacement for the baud rate switch, since DG/UX uses a different
 182    from BSD.  */
 183
 184 #define BAUD_CONVERT    { 0, 110, 134, 150, 300, 600, 1200, 1800, 2400, \
 185                           4800, 9600, 19200, 38400 }
 186
 187 /*
 188  *      Define NLIST_STRUCT if the system has nlist.h
 189  */
 190
 191 #define NLIST_STRUCT
 192
 193 /*
 194  *      Make WM Interface Compliant.
 195  */
 196
 197 #define XICCC
 198
 199 /* Here, on a separate page, add any special hacks needed
 200    to make Emacs work on this system.  For example,
 201    you might define certain system call names that don't
 202    exist on your system, or that do different things on
 203    your system and must be used only through an encapsulation
 204    (Which you should place, by convention, in sysdep.c).  */
 205 \f
 206 /* Some compilers tend to put everything declared static
 207    into the initialized data area, which becomes pure after dumping Emacs.
 208    On these systems, you must #define static as nothing to foil this.
 209    Note that emacs carefully avoids static vars inside functions.  */
 210
 211 /* #define static */
 212
 213 /* DG/UX SPECIFIC ADDITIONS TO TEMPLATE FOLLOW: */
 214
 215 /* Use the Berkeley flavors of the library routines, instead of System V.  */
 216
 217 #define setpgrp(pid,pgrp) setpgrp2(pid,pgrp)
 218 #define getpgrp(pid) getpgrp2(pid)
 219
 220 /* Act like Berkeley. */
 221
 222 #define _setjmp(env) sigsetjmp(env,0)
 223 #define _longjmp(env,val) longjmp(env,val)
 224
 225 /* Use TERMINFO instead of termcap */
 226
 227 #define TERMINFO
 228
 229 /*
 230  *      Define HAVE_TERMIOS since this is POSIX,
 231  *      for terminal control.
 232  */
 233
 234 #define HAVE_TERMIOS
 235
 236 /*
 237  *      Use a Berkeley style sys/wait.h.
 238  *      This makes WIF* macros operate on structures instead of ints.
 239  */
 240
 241 #define _BSD_WAIT_FLAVOR
 242
 243 /*
 244  *      Use BSD and POSIX-style signals.  This is crucial!
 245  */
 246
 247 /* pmr now says the GNU malloc works.  */
 248 /* pmr@rock.concert.net says Emacs fails without this.  We don't know why.  */
 249 /* #define SYSTEM_MALLOC */
 250
 251 /* MAKING_MAKEFILE must be defined in "ymakefile" before including config.h */
 252 #ifndef THIS_IS_YMAKEFILE
 253
 254 /* Make sure signal.h is included so macros below don't mess with it. */
 255 /* DG/UX include files prevent multiple inclusion. */
 256
 257 #include <signal.h>
 258
 259 /* but undefine the sigmask and sigpause macros since they will get
 260    #define'd later. */
 261 #undef sigmask
 262 #undef sigpause
 263
 264 #define POSIX_SIGNALS
 265
 266 /* Define this if you use System 5 Release 4 Streams */
 267 #define SYSV4_PTYS
 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 LD_SWITCH_SYSTEM
 288 /* Cannot depend on /lib/crt0.o because make does not understand an elink(1) */
 289 #define START_FILES pre-crt0.o
 290 #define LIBS_SYSTEM -ldgc /lib/crt0.o
 291 #define LIB_GCC /usr/lib/gcc/libgcc.a
 292
 293 #ifdef _M88KBCS_TARGET
 294 /* Karl Berry says: the environment
 295    recommended by gcc (88/open, a.k.a. m88kbcs) doesn't support some system
 296    functions, and gcc doesn't make it easy to switch environments.  */
 297 #define NO_GET_LOAD_AVG
 298 #endif
 299 \f
 300 /* definitions for xmakefile production */
 301 #ifdef COFF
 302
 303 #define C_COMPILER \
 304   TARGET_BINARY_INTERFACE=m88kdguxcoff gcc -traditional
 305
 306 #define LINKER \
 307   TARGET_BINARY_INTERFACE=m88kdguxcoff gcc -nostdlib
 308
 309 #define MAKE_COMMAND \
 310   TARGET_BINARY_INTERFACE=m88kdguxcoff make
 311
 312 #define C_DEBUG_SWITCH
 313 #else /* not COFF */
 314
 315 #define C_COMPILER \
 316   TARGET_BINARY_INTERFACE=m88kdguxelf gcc -traditional
 317
 318 #define LINKER \
 319   TARGET_BINARY_INTERFACE=m88kdguxelf gcc -nostdlib
 320
 321 #define MAKE_COMMAND \
 322   TARGET_BINARY_INTERFACE=m88kdguxelf make
 323
 324 #define C_DEBUG_SWITCH -g -V2 -mversion-03.00 -mstandard
 325 #endif /* COFF */
 326 /* Define switches affecting x/ymakefile */
 327 #define C_OPTIMIZE_SWITCH
 328
 329 /* Paul M Reilly <pmr@rock.concert.net> writes:
 330    On some systems (DGUX comes to mind real fast) FASYNC causes
 331    background writes to the terminal to stop all processes in the
 332    process group when invoked under the csh (and probably any shell
 333    with job control). This stops Emacs dead in its tracks when coming
 334    up under X11. */
 335 #define BROKEN_FASYNC
 336
 337 /* (Assume) we do have vfork.  */
 338
 339 #define HAVE_VFORK