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 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, Inc., 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22
  23 /*
  24  *      Define symbols to identify the version of Unix this is.
  25  *      Define all the symbols that apply correctly.
  26  */
  27
  28 #define USG                             /* System III, System V, etc */
  29
  30 #define USG5
  31
  32 #define HPUX
  33
  34 /* SYSTEM_TYPE should indicate the kind of system you are using.
  35  It sets the Lisp variable system-type.  */
  36
  37 #define SYSTEM_TYPE "hpux"
  38
  39 /* `nomultiplejobs' should be defined if your system's shell
  40  does not have "job control" (the ability to stop a program,
  41  run some other program, then continue the first one).
  42
  43  On hpux this depends on the precise kind of machine in use,
  44  so the m- file defines this symbol if appropriate.  */
  45
  46 /* Default is to set interrupt_input to 0: don't do input buffering within Emacs */
  47
  48 /* #define INTERRUPT_INPUT */
  49
  50 /* Letter to use in finding device name of first pty,
  51   if system supports pty's.  'p' means it is /dev/ptym/ptyp0  */
  52
  53 #define FIRST_PTY_LETTER 'p'
  54
  55 /*
  56  *      Define HAVE_TERMIO if the system provides sysV-style ioctls
  57  *      for terminal control.
  58  */
  59
  60 #define HAVE_TERMIO
  61
  62 /*
  63  *      Define HAVE_PTYS if the system supports pty devices.
  64  */
  65
  66 #define HAVE_PTYS
  67
  68 /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */
  69
  70 #define HAVE_SOCKETS
  71
  72 /*
  73  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
  74  *      The 4.2 opendir, etc., library functions.
  75  */
  76
  77 /* #define NONSYSTEM_DIR_LIBRARY */
  78
  79 /* Define this symbol if your system has the functions bcopy, etc.
  80  * s800 and later versions of s300 (s200) kernels have equivalents
  81  * of the BSTRING functions of BSD.  If your s200 kernel doesn't have
  82  * em comment out this section.
  83  */
  84
  85 #define BSTRING
  86
  87 /* subprocesses should be defined if you want to
  88  have code for asynchronous subprocesses
  89  (as used in M-x compile and M-x shell).
  90  This is generally OS dependent, and not supported
  91  under most USG systems.  */
  92
  93 #define subprocesses
  94
  95 /* If your system uses COFF (Common Object File Format) then define the
  96    preprocessor symbol "COFF". */
  97
  98 /* #define COFF */
  99
 100 /* define MAIL_USE_FLOCK if the mailer uses flock
 101    to interlock access to /usr/spool/mail/$USER.
 102    The alternative is that a lock file named
 103    /usr/spool/mail/$USER.lock.  */
 104
 105 /* #define MAIL_USE_FLOCK */
 106
 107 /* Say we have the SYSV style of interprocess communication.  */
 108
 109 #define HAVE_SYSVIPC
 110
 111 /* Define CLASH_DETECTION if you want lock files to be written
 112    so that Emacs can tell instantly when you try to modify
 113    a file that someone else has modified in his Emacs.  */
 114
 115 #define CLASH_DETECTION
 116
 117 /* Define SHORTNAMES if the C compiler can distinguish only
 118    short names.  It means that the stuff in ../shortnames
 119    must be run to convert the long names to short ones.
 120
 121    Some USG systems support long names.
 122    If yours is one, DO NOT change this file!
 123    Do #undef SHORTNAMES in the m- file or in config.h.  */
 124
 125 /* #define SHORTNAMES */
 126
 127 /* We use the Berkeley (and usg5.2.2) interface to nlist.  */
 128
 129 #define NLIST_STRUCT
 130
 131 /* The file containing the kernel's symbol table is called /hp-ux.  */
 132
 133 #define KERNEL_FILE "/hp-ux"
 134
 135 /* The symbol in the kernel where the load average is found
 136    depends on the cpu type, so we let the m- files define LDAV_SYMBOL.  */
 137
 138 /* Special hacks needed to make Emacs run on this system.  */
 139
 140 /*
 141  *      Make the sigsetmask function go away.  Don't know what the
 142  *      ramifications of this are, but doesn't seem possible to
 143  *      emulate it properly anyway at this point.
 144  */
 145
 146 /* HPUX has sigsetmask */
 147 /* #define sigsetmask(mask)     / * Null expansion * / */
 148
 149 /* setjmp and longjmp can safely replace _setjmp and _longjmp,
 150    but they will run slower.  */
 151
 152 /* HP-UX has _setjmp and _longjmp */
 153 /*
 154 #define _setjmp setjmp
 155 #define _longjmp longjmp
 156 */
 157
 158 /* On USG systems the system calls are interruptible by signals
 159  that the user program has elected to catch.  Thus the system call
 160  must be retried in these cases.  To handle this without massive
 161  changes in the source code, we remap the standard system call names
 162  to names for our own functions in sysdep.c that do the system call
 163  with retries. */
 164
 165 #define read sys_read
 166 #define open sys_open
 167 #define write sys_write
 168
 169 #define INTERRUPTIBLE_OPEN
 170 #define INTERRUPTIBLE_IO
 171
 172 /* Use the system provided termcap(3) library */
 173 #define TERMINFO
 174
 175 /* The 48-bit versions are more winning for Emacs;
 176    the ordinary ones don't give even 32 bits.  */
 177 #define random lrand48
 178 #define srandom srand48
 179
 180 /* In hpux, the symbol SIGIO is defined, but the feature
 181    doesn't work in the way Emacs needs it to.
 182
 183    Here we assume that signal.h is included before config.h
 184    so that we can override it here.  */
 185
 186 #undef SIGIO
 187
 188 /* USG systems tend to put everything declared static
 189    into the initialized data area, which becomes pure after dumping Emacs.
 190    Foil this.  Emacs carefully avoids static vars inside functions.  */
 191
 192 #define static
 193
 194 /* Define extra libraries to load.
 195    This should have -lBSD, but that library is said to make
 196    `signal' fail to work.  */
 197
 198 #ifdef HPUX_NET
 199 #define LIBS_SYSTEM -ln
 200 #else
 201 #define LIBS_SYSTEM
 202 #endif
 203
 204 /* Some additional system facilities exist.  */
 205
 206 #define HAVE_VFORK
 207 #define HAVE_PERROR  /* Delete this line for version 6.  */
 208
 209 /* The following maps shared exec file to demand loaded exec.
 210    Don't do this as demand loaded exec is broken in hpux.  */
 211
 212 #if 0
 213
 214 /* Adjust a header field for the executable file about to be dumped.  */
 215
 216 #define ADJUST_EXEC_HEADER   \
 217   hdr.a_magic = ((ohdr.a_magic.file_type == OLDMAGIC.file_type) ?  \
 218                  NEWMAGIC : ohdr.a_magic);
 219
 220 #endif
 221
 222 /* Baud-rate values in tty status have nonstandard meanings.  */
 223
 224 #define BAUD_CONVERT  \
 225 { 0, 50, 75, 110, 135, 150, 200, 300, 600, 900, 1200,  \
 226   1800, 2400, 3600, 4800, 7200, 9600, 19200, 38400 }
 227
 228 /* This is needed for HPUX version 6.2; it may not be needed for 6.2.1.  */
 229 #define SHORT_CAST_BUG
 230
 231 /* This is how to get the device name of the tty end of a pty.  */
 232 #define PTY_TTY_NAME_SPRINTF \
 233             sprintf (pty_name, "/dev/pty/tty%c%x", c, i);
 234
 235 /* This is how to get the device name of the control end of a pty.  */
 236 #define PTY_NAME_SPRINTF \
 237         sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);
 238
 239 /* This triggers a conditional in xfaces.c.  */
 240 #define XOS_NEEDS_TIME_H