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 2, 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, Inc., 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, 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 #define USG5
  29
  30 /*      Specify IBM AIX version of system */
  31
  32 #ifndef AIX
  33 #define AIX
  34 #endif
  35
  36 /*      turn off c prototypes */
  37 #ifndef _NO_PROTO
  38 #define _NO_PROTO
  39 #endif
  40
  41 /*      This symbol should be defined on AIX Version 3  ??????? */
  42 #ifndef _AIX
  43 #define _AIX
  44 #endif
  45
  46 /*      Specify "_BSD" to invoke Berkeley compatibility in header files */
  47 /*#ifndef _BSD
  48 #define _BSD
  49 #endif
  50 */
  51
  52 /* SYSTEM_TYPE should indicate the kind of system you are using.
  53  It sets the Lisp variable system-type.  */
  54
  55 #define SYSTEM_TYPE "aix"
  56
  57
  58 /* nomultiplejobs should be defined if your system's shell
  59  does not have "job control" (the ability to stop a program,
  60  run some other program, then continue the first one).  */
  61
  62 /* #define NOMULTIPLEJOBS */
  63
  64 /* Default is to set interrupt_input to 0: don't do input buffering within Emacs */
  65
  66 /* #define INTERRUPT_INPUT */
  67
  68 /* In AIX, you allocate a pty by opening /dev/ptc to get the master side.
  69    To get the name of the slave side, you just ttyname() the master side.  */
  70
  71 #define PTY_ITERATION for (c = 0; !c ; c++)
  72 #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptc");
  73 #define PTY_TTY_NAME_SPRINTF strcpy (pty_name, ttyname (fd));
  74
  75 /*
  76  *      Define HAVE_TERMIO if the system provides sysV-style ioctls
  77  *      for terminal control.
  78  */
  79
  80 #define HAVE_TERMIOS
  81
  82 /*
  83  *      Define HAVE_PTYS if the system supports pty devices.
  84  */
  85
  86 #define HAVE_PTYS
  87
  88 /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */
  89
  90 #define HAVE_SOCKETS
  91
  92 /*
  93  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
  94  *      The 4.2 opendir, etc., library functions.
  95  */
  96
  97 /* #define NONSYSTEM_DIR_LIBRARY */
  98
  99 /*
 100  *      Define SYSV_SYSTEM_DIR to use the V.3 getdents/readir
 101  *      library functions.  Almost, but not quite the same as
 102  *      the 4.2 functions
 103  */
 104
 105 #define SYSV_SYSTEM_DIR
 106
 107 /* Define this symbol if your system has the functions bcopy, etc. */
 108
 109 #define BSTRING
 110
 111 /* subprocesses should be defined if you want to
 112  have code for asynchronous subprocesses
 113  (as used in M-x compile and M-x shell).
 114  This is supposed to work now on system V release 2.  */
 115
 116 #define subprocesses
 117
 118 /* If your system uses COFF (Common Object File Format) then define the
 119    preprocessor symbol "COFF". */
 120
 121 /* #define COFF */
 122
 123 /* define MAIL_USE_FLOCK if the mailer uses flock
 124    to interlock access to /usr/spool/mail/$USER.
 125    The alternative is that a lock file named
 126    /usr/spool/mail/$USER.lock.  */
 127
 128 /* #define MAIL_USE_FLOCK */
 129
 130 /* Define CLASH_DETECTION if you want lock files to be written
 131    so that Emacs can tell instantly when you try to modify
 132    a file that someone else has modified in his Emacs.  */
 133
 134 /* #define CLASH_DETECTION */
 135
 136 /* Define SHORTNAMES if the C compiler can distinguish only
 137    short names.  It means that the stuff in ../shortnames
 138    must be run to convert the long names to short ones.  */
 139
 140 /* #define SHORTNAMES */
 141
 142 /* We do NOT use the Berkeley (and usg5.2.2) interface to nlist.  */
 143
 144 /* #define NLIST_STRUCT */
 145
 146 /* The file containing the kernel's symbol table is called /unix.  */
 147
 148 #define KERNEL_FILE "/unix"
 149
 150 /* The symbol in the kernel where the load average is found
 151    is named avenrun.  */
 152
 153 #define LDAV_SYMBOL "avenrun"
 154 \f
 155 /* Special itemss needed to make Emacs run on this system.  */
 156
 157 /*
 158  *      Make the sigsetmask function go away.  Don't know what the
 159  *      ramifications of this are, but doesn't seem possible to
 160  *      emulate it properly anyway at this point.
 161  */
 162
 163 #define sigsetmask(mask)        /* Null expansion */
 164
 165 /* setjmp and longjmp can safely replace _setjmp and _longjmp,
 166    but they will run slower.  */
 167
 168 #define _setjmp setjmp
 169 #define _longjmp longjmp
 170
 171 /* On USG systems the system calls are interruptible by signals
 172  that the user program has elected to catch.  Thus the system call
 173  must be retried in these cases.  To handle this without massive
 174  changes in the source code, we remap the standard system call names
 175  to names for our own functions in sysdep.c that do the system call
 176  with retries. */
 177
 178 #define read sys_read
 179 #define open sys_open
 180 #define write sys_write
 181
 182 #define INTERRUPTIBLE_OPEN
 183 #define INTERRUPTIBLE_IO
 184
 185 /* On USG systems these have different names */
 186
 187 #define index strchr
 188 #define rindex strrchr
 189
 190 /* USG systems tend to put everything declared static
 191    into the initialized data area, which becomes pure after dumping Emacs.
 192    Foil this.  Emacs carefully avoids static vars inside functions.  */
 193
 194 #undef static
 195
 196 /* Compiler bug bites on many systems when default ADDR_CORRECT is used.  */
 197
 198 /* #define ADDR_CORRECT(x) (x) */
 199
 200 #ifndef __GNUC__
 201 #define LINKER cc
 202 #endif
 203
 204 /* Prevent -lg from being used for debugging.  Not needed.  */
 205
 206 #define LIBS_DEBUG
 207
 208 /* No need to specify -lc when linking.  */
 209
 210 #define LIB_STANDARD
 211
 212 /* Use terminfo instead of termcap.  */
 213
 214 #define TERMINFO
 215
 216 /* The following definition seems to be needed in AIX version 3.1.6.8.
 217    It may not have been needed in certain earlier versions.  */
 218 #define HAVE_TCATTR
 219
 220 #define SYSTEM_MALLOC
 221
 222 /* Include unistd.h, even though we don't define POSIX.  */
 223 #define NEED_UNISTD_H
 224
 225 /* AIX doesn't define this.  */
 226 #define unix 1
 227
 228 /* AIX 3.1 has the HFT features.  */
 229 #define AIXHFT
 230
 231 /* For unexaix.c. */
 232 #define ALIGN_DATA_RELOC
 233