src/s/hpux.h

   1 /* Definitions file for GNU Emacs running on HPUX release 7.0.
   2    Based on AT&T System V.2.
   3    Copyright (C) 1985, 1986 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 1, 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 USG                             /* System III, System V, etc */
  28
  29 #define USG5
  30
  31 #define HPUX
  32
  33 /* SYSTEM_TYPE should indicate the kind of system you are using.
  34  It sets the Lisp variable system-type.  */
  35
  36 #define SYSTEM_TYPE "hpux"
  37
  38 /* `nomultiplejobs' should be defined if your system's shell
  39  does not have "job control" (the ability to stop a program,
  40  run some other program, then continue the first one).
  41
  42  On hpux this depends on the precise kind of machine in use,
  43  so the m- file defines this symbol if appropriate.  */
  44
  45 /* Default is to set interrupt_input to 0: don't do input buffering within Emacs */
  46
  47 /* #define INTERRUPT_INPUT */
  48
  49 /* Letter to use in finding device name of first pty,
  50   if system supports pty's.  'p' means it is /dev/ptym/ptyp0  */
  51
  52 #define FIRST_PTY_LETTER 'p'
  53
  54 /*
  55  *      Define HAVE_TERMIO if the system provides sysV-style ioctls
  56  *      for terminal control.
  57  */
  58
  59 #define HAVE_TERMIO
  60
  61 /* Says to include time.h, and not include sys/time.h.  */
  62
  63 #define NEED_TIME_H
  64
  65 /*
  66  *      Define HAVE_TIMEVAL if the system supports the BSD style clock values.
  67  *      Look in <sys/time.h> for a timeval structure.
  68  */
  69
  70 #define HAVE_TIMEVAL
  71
  72 /* With HAVE_TIMEVAL define, Emacs expects to use `utimes'.
  73    But HPUX does not have one.  */
  74
  75 #define MISSING_UTIMES
  76
  77 /*
  78  *      Define HAVE_SELECT if the system supports the `select' system call.
  79  */
  80
  81 #define HAVE_SELECT
  82
  83 /*
  84  *      Define HAVE_PTYS if the system supports pty devices.
  85  */
  86
  87 #define HAVE_PTYS
  88
  89 /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */
  90
  91 #define HAVE_SOCKETS
  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  * s800 and later versions of s300 (s200) kernels have equivilents
 102  * of the BSTRING functions of BSD.  If your s200 kernel doesn't have
 103  * em comment out this section.
 104  */
 105
 106 #define BSTRING
 107
 108 /* subprocesses should be defined if you want to
 109  have code for asynchronous subprocesses
 110  (as used in M-x compile and M-x shell).
 111  This is generally OS dependent, and not supported
 112  under most USG systems.  */
 113
 114 #define subprocesses
 115
 116 /* If your system uses COFF (Common Object File Format) then define the
 117    preprocessor symbol "COFF". */
 118
 119 /* #define COFF */
 120
 121 /* define MAIL_USE_FLOCK if the mailer uses flock
 122    to interlock access to /usr/spool/mail/$USER.
 123    The alternative is that a lock file named
 124    /usr/spool/mail/$USER.lock.  */
 125
 126 /* #define MAIL_USE_FLOCK */
 127
 128 /* Say we have the SYSV style of interprocess communication.  */
 129
 130 #define HAVE_SYSVIPC
 131
 132 /* Define CLASH_DETECTION if you want lock files to be written
 133    so that Emacs can tell instantly when you try to modify
 134    a file that someone else has modified in his Emacs.  */
 135
 136 #define CLASH_DETECTION
 137
 138 /* Define SHORTNAMES if the C compiler can distinguish only
 139    short names.  It means that the stuff in ../shortnames
 140    must be run to convert the long names to short ones.
 141
 142    Some USG systems support long names.
 143    If yours is one, DO NOT change this file!
 144    Do #undef SHORTNAMES in the m- file or in config.h.  */
 145
 146 /* #define SHORTNAMES */
 147
 148 /* We use the Berkeley (and usg5.2.2) interface to nlist.  */
 149
 150 #define NLIST_STRUCT
 151
 152 /* The file containing the kernel's symbol table is called /hp-ux.  */
 153
 154 #define KERNEL_FILE "/hp-ux"
 155
 156 /* The symbol in the kernel where the load average is found
 157    depends on the cpu type, so we let the m- files define LDAV_SYMBOL.  */
 158
 159 /* Special hacks needed to make Emacs run on this system.  */
 160
 161 /*
 162  *      Make the sigsetmask function go away.  Don't know what the
 163  *      ramifications of this are, but doesn't seem possible to
 164  *      emulate it properly anyway at this point.
 165  */
 166
 167 /* HPUX has sigsetmask */
 168 /* #define sigsetmask(mask)     / * Null expansion * / */
 169
 170 /* setjmp and longjmp can safely replace _setjmp and _longjmp,
 171    but they will run slower.  */
 172
 173 /* HP-UX has _setjmp and _longjmp */
 174 /*
 175 #define _setjmp setjmp
 176 #define _longjmp longjmp
 177 */
 178
 179 /* On USG systems the system calls are interruptable by signals
 180  that the user program has elected to catch.  Thus the system call
 181  must be retried in these cases.  To handle this without massive
 182  changes in the source code, we remap the standard system call names
 183  to names for our own functions in sysdep.c that do the system call
 184  with retries. */
 185
 186 #define read sys_read
 187 #define open sys_open
 188 #define write sys_write
 189
 190 #define INTERRUPTIBLE_OPEN
 191 #define INTERRUPTIBLE_IO
 192
 193 /* Use the system provided termcap(3) library */
 194 #define TERMINFO
 195
 196 /* The 48-bit versions are more winning for Emacs.  */
 197
 198 #define rand lrand48
 199 #define srand srand48
 200
 201 /* In hpux, the symbol SIGIO is defined, but the feature
 202    does not really exist.
 203
 204    Here we assume that signal.h is included before config.h
 205    so that we can override it here.  */
 206
 207 #undef SIGIO
 208
 209 /* USG systems tend to put everything declared static
 210    into the initialized data area, which becomes pure after dumping Emacs.
 211    Foil this.  Emacs carefully avoids static vars inside functions.  */
 212
 213 #define static
 214
 215 /* Define extra libraries to load.
 216    This should have -lBSD, but that library is said to make
 217    `signal' fail to work.  */
 218
 219 #ifdef HPUX_NET
 220 #define LIBS_SYSTEM -ln
 221 #else
 222 #define LIBS_SYSTEM
 223 #endif
 224
 225 /* Some additional system facilities exist.  */
 226
 227 #define HAVE_DUP2
 228 #define HAVE_GETTIMEOFDAY
 229 #define HAVE_VFORK
 230 #define HAVE_PERROR  /* Delete this line for version 6.  */
 231 #define HAVE_RENAME
 232
 233 /* The following maps shared exec file to demand loaded exec.
 234    Don't do this as demand loaded exec is broken in hpux.  */
 235
 236 #if 0
 237
 238 /* Adjust a header field for the executable file about to be dumped.  */
 239
 240 #define ADJUST_EXEC_HEADER   \
 241   hdr.a_magic = ((ohdr.a_magic.file_type == OLDMAGIC.file_type) ?  \
 242                  NEWMAGIC : ohdr.a_magic);
 243
 244 #endif
 245
 246 /* Baud-rate values in tty status have nonstandard meanings.  */
 247
 248 #define BAUD_CONVERT  \
 249 { 0, 50, 75, 110, 135, 150, 200, 300, 600, 900, 1200,  \
 250   1800, 2400, 3600, 4800, 7200, 9600, 19200, 38400 }
 251
 252 /* This is needed for HPUX version 6.2; it may not be needed for 6.2.1.  */
 253 #define SHORT_CAST_BUG
 254
 255 /* This is how to get the device name of the tty end of a pty.  */
 256 #define PTY_TTY_NAME_SPRINTF \
 257             sprintf (pty_name, "/dev/pty/tty%c%x", c, i);
 258
 259 /* This is how to get the device name of the control end of a pty.  */
 260 #define PTY_NAME_SPRINTF \
 261         sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);