src/s/aix3-1.h

   1 /* Definitions file for GNU Emacs running on IBM AIX version 3.1
   2    Copyright (C) 1985, 1986, 1990 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Emacs.
   5
   6 GNU Emacs is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 1, or (at your option)
   9 any later version.
  10
  11 GNU Emacs is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Emacs; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  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 USG                             /* System III, System V, etc */
  27 #define USG5
  28
  29 /*      Specify IBM AIX version of system */
  30
  31 #ifndef AIX
  32 #define AIX
  33 #endif
  34
  35 /*      turn off c prototypes */
  36 #ifndef _NO_PROTO
  37 #define _NO_PROTO
  38 #endif
  39
  40 /*      This symbol should be defined on AIX Version 3  ??????? */
  41 #ifndef _AIX
  42 #define _AIX
  43 #endif
  44
  45 /*      Specify "_BSD" to invoke Berkeley compatibility in header files */
  46 /*#ifndef _BSD
  47 #define _BSD
  48 #endif
  49 */
  50
  51 /* SYSTEM_TYPE should indicate the kind of system you are using.
  52  It sets the Lisp variable system-type.  */
  53
  54 #define SYSTEM_TYPE "aix-v3"
  55
  56
  57 /* nomultiplejobs should be defined if your system's shell
  58  does not have "job control" (the ability to stop a program,
  59  run some other program, then continue the first one).  */
  60
  61 /* #define NOMULTIPLEJOBS */
  62
  63 /* Default is to set interrupt_input to 0: don't do input buffering within Emacs */
  64
  65 /* #define INTERRUPT_INPUT */
  66
  67 /* In AIX, you allocate a pty by opening /dev/ptc to get the master side.
  68    To get the name of the slave side, you just ttyname() the master side.  */
  69
  70 #define PTY_ITERATION for (c = 0; !c ; c++)
  71 #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptc");
  72 #define PTY_TTY_NAME_SPRINTF strcpy (pty_name, ttyname (fd));
  73
  74 /*
  75  *      Define HAVE_TERMIO if the system provides sysV-style ioctls
  76  *      for terminal control.
  77  */
  78
  79 #define HAVE_TERMIOS
  80
  81 /*
  82  *      Define HAVE_TIMEVAL if the system supports the BSD style clock values.
  83  *      Look in <sys/time.h> for a timeval structure.
  84  */
  85
  86 #define HAVE_TIMEVAL
  87
  88 /*
  89  *      Define HAVE_SELECT if the system supports the `select' system call.
  90  */
  91
  92 #define HAVE_SELECT
  93
  94 /*
  95  *      Define HAVE_PTYS if the system supports pty devices.
  96  */
  97
  98 #define HAVE_PTYS
  99
 100 /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */
 101
 102 #define HAVE_SOCKETS
 103
 104 /*
 105  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
 106  *      The 4.2 opendir, etc., library functions.
 107  */
 108
 109 /* #define NONSYSTEM_DIR_LIBRARY */
 110
 111 /*
 112  *      Define SYSV_SYSTEM_DIR to use the V.3 getdents/readir
 113  *      library functions.  Almost, but not quite the same as
 114  *      the 4.2 functions
 115  */
 116
 117 #define SYSV_SYSTEM_DIR
 118
 119 /* Define this symbol if your system has the functions bcopy, etc. */
 120
 121 #define BSTRING
 122
 123 /* subprocesses should be defined if you want to
 124  have code for asynchronous subprocesses
 125  (as used in M-x compile and M-x shell).
 126  This is supposed to work now on system V release 2.  */
 127
 128 #define subprocesses
 129
 130 /* If your system uses COFF (Common Object File Format) then define the
 131    preprocessor symbol "COFF". */
 132
 133 /* #define COFF */
 134
 135 /* define MAIL_USE_FLOCK if the mailer uses flock
 136    to interlock access to /usr/spool/mail/$USER.
 137    The alternative is that a lock file named
 138    /usr/spool/mail/$USER.lock.  */
 139
 140 /* #define MAIL_USE_FLOCK */
 141
 142 /* Define CLASH_DETECTION if you want lock files to be written
 143    so that Emacs can tell instantly when you try to modify
 144    a file that someone else has modified in his Emacs.  */
 145
 146 /* #define CLASH_DETECTION */
 147
 148 /* Define SHORTNAMES if the C compiler can distinguish only
 149    short names.  It means that the stuff in ../shortnames
 150    must be run to convert the long names to short ones.  */
 151
 152 /* #define SHORTNAMES */
 153
 154 /* We do NOT use the Berkeley (and usg5.2.2) interface to nlist.  */
 155
 156 /* #define NLIST_STRUCT */
 157
 158 /* The file containing the kernel's symbol table is called /unix.  */
 159
 160 #define KERNEL_FILE "/unix"
 161
 162 /* The symbol in the kernel where the load average is found
 163    is named avenrun.  */
 164
 165 #define LDAV_SYMBOL "avenrun"
 166 \f
 167 /* Special itemss needed to make Emacs run on this system.  */
 168
 169 /*
 170  *      Make the sigsetmask function go away.  Don't know what the
 171  *      ramifications of this are, but doesn't seem possible to
 172  *      emulate it properly anyway at this point.
 173  */
 174
 175 #define sigsetmask(mask)        /* Null expansion */
 176
 177 /* setjmp and longjmp can safely replace _setjmp and _longjmp,
 178    but they will run slower.  */
 179
 180 #define _setjmp setjmp
 181 #define _longjmp longjmp
 182
 183 /* On USG systems the system calls are interruptable by signals
 184  that the user program has elected to catch.  Thus the system call
 185  must be retried in these cases.  To handle this without massive
 186  changes in the source code, we remap the standard system call names
 187  to names for our own functions in sysdep.c that do the system call
 188  with retries. */
 189
 190 #define read sys_read
 191 #define open sys_open
 192 #define write sys_write
 193
 194 #define INTERRUPTIBLE_OPEN
 195 #define INTERRUPTIBLE_IO
 196
 197 /* On USG systems these have different names */
 198
 199 #define index strchr
 200 #define rindex strrchr
 201
 202 /* USG systems tend to put everything declared static
 203    into the initialized data area, which becomes pure after dumping Emacs.
 204    Foil this.  Emacs carefully avoids static vars inside functions.  */
 205
 206 #undef static
 207
 208 /* Compiler bug bites on many systems when default ADDR_CORRECT is used.  */
 209
 210 /* #define ADDR_CORRECT(x) (x) */
 211
 212 #ifndef __GNUC__
 213 #define LINKER cc
 214 #endif
 215
 216 /* Prevent -lg from being used for debugging.  Not needed.  */
 217
 218 #define LIBS_DEBUG
 219
 220 /* No need to specify -lc when linking.  */
 221
 222 #define LIB_STANDARD
 223
 224 /* Use terminfo instead of termcap.  */
 225
 226 #define TERMINFO
 227
 228 /* The following definition seems to be needed in AIX version 3.1.6.8.
 229    It may not have been needed in certain earlier versions.  */
 230 #define HAVE_TCATTR
 231
 232 #define SYSTEM_MALLOC
 233
 234 /* AIX doesn't define this.  */
 235 #define unix 1