src/s/aix4-2.h

   1 /*
   2 Copyright (C) 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
   3   2010  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 3 of the License, or
  10 (at your option) 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.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 /* Define symbols to identify the version of Unix this is.
  21    Define all the symbols that apply correctly.  */
  22 #define USG                             /* System III, System V, etc */
  23 #define USG5
  24
  25 /* This symbol should be defined on AIX Version 3  ??????? */
  26 #ifndef _AIX
  27 #define _AIX
  28 #endif
  29
  30 /* SYSTEM_TYPE should indicate the kind of system you are using.
  31  It sets the Lisp variable system-type.  */
  32 #define SYSTEM_TYPE "aix"
  33
  34 /* In AIX, you allocate a pty by opening /dev/ptc to get the master side.
  35    To get the name of the slave side, you just ttyname() the master side.  */
  36 #define PTY_ITERATION for (c = 0; !c ; c++)
  37 #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptc");
  38 #define PTY_TTY_NAME_SPRINTF strcpy (pty_name, ttyname (fd));
  39
  40 /* Define HAVE_TERMIO if the system provides sysV-style ioctls
  41    for terminal control.  */
  42 #define HAVE_TERMIOS
  43
  44 /* Define HAVE_PTYS if the system supports pty devices.  */
  45 #define HAVE_PTYS
  46
  47 /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */
  48 #define HAVE_SOCKETS
  49
  50
  51 /* Define SYSV_SYSTEM_DIR to use the V.3 getdents/readir library
  52    functions.  Almost, but not quite the same as the 4.2 functions.  */
  53 #define SYSV_SYSTEM_DIR
  54
  55 /* Define this symbol if your system has the functions bcopy, etc.  */
  56 #define BSTRING
  57
  58 /* The file containing the kernel's symbol table is called /unix.  */
  59 #define KERNEL_FILE "/unix"
  60
  61 /* The kernel symbol where the load average is found is named avenrun.  */
  62 #define LDAV_SYMBOL "avenrun"
  63 \f
  64 /* Special items needed to make Emacs run on this system.  */
  65
  66 /* The following definition seems to be needed in AIX version 3.1.6.8.
  67    It may not have been needed in certain earlier versions.  */
  68 #define HAVE_TCATTR
  69
  70 /* AIX doesn't define this.  */
  71 #define unix 1
  72
  73 /* string.h defines rindex as a macro, at least with native cc, so we
  74    lose declaring char * rindex without this.
  75    It is just a guess which versions of AIX need this definition.  */
  76 #undef HAVE_STRING_H
  77
  78 /* Perry Smith <pedz@ddivt1.austin.ibm.com> says these are correct.  */
  79 #define SIGNALS_VIA_CHARACTERS
  80 #define CLASH_DETECTION
  81
  82 /* Perry Smith <pedz@ddivt1.austin.ibm.com> says these are correct.  */
  83 #undef sigmask
  84
  85 #ifndef HAVE_LIBXMU
  86 /* Unfortunately without libXmu we cannot support EditRes.  */
  87 #define NO_EDITRES
  88 #endif
  89
  90 /* On AIX Emacs uses the gmalloc.c malloc implementation.  But given
  91    the way this system works, libc functions that return malloced
  92    memory use the libc malloc implementation. Calling xfree or
  93    xrealloc on the results of such functions results in a crash.
  94
  95    One solution for this could be to define SYSTEM_MALLOC here, but
  96    that does not currently work on this system.
  97
  98    It is possible to completely override the malloc implementation on
  99    AIX, but that involves putting the malloc functions in a shared
 100    library and setting the MALLOCTYPE environment variable to point to
 101    that shared library.
 102
 103    Emacs currently calls xrealloc on the results of get_current_dir name,
 104    to avoid a crash just use the Emacs implementation for that function.  */
 105 #define BROKEN_GET_CURRENT_DIR_NAME 1
 106
 107 #define UNEXEC unexaix.o
 108
 109 #define ORDINARY_LINK
 110
 111 /* arch-tag: 38fe75ea-6aef-42bd-8449-bc34d921a562
 112    (do not change this comment) */