src/s/aix4-2.h

   1 /*
   2 Copyright (C) 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
   3   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 /*
  21  *      Define symbols to identify the version of Unix this is.
  22  *      Define all the symbols that apply correctly.
  23  */
  24
  25 #define USG                             /* System III, System V, etc */
  26 #define USG5
  27
  28 /*      This symbol should be defined on AIX Version 3  ??????? */
  29 #ifndef _AIX
  30 #define _AIX
  31 #endif
  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 "aix"
  37
  38 /* In AIX, you allocate a pty by opening /dev/ptc to get the master side.
  39    To get the name of the slave side, you just ttyname() the master side.  */
  40
  41 #define PTY_ITERATION for (c = 0; !c ; c++)
  42 #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptc");
  43 #define PTY_TTY_NAME_SPRINTF strcpy (pty_name, ttyname (fd));
  44
  45 /*
  46  *      Define HAVE_TERMIO if the system provides sysV-style ioctls
  47  *      for terminal control.
  48  */
  49
  50 #define HAVE_TERMIOS
  51
  52 /*
  53  *      Define HAVE_PTYS if the system supports pty devices.
  54  */
  55
  56 #define HAVE_PTYS
  57
  58 /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */
  59
  60 #define HAVE_SOCKETS
  61
  62
  63 /*
  64  *      Define SYSV_SYSTEM_DIR to use the V.3 getdents/readir
  65  *      library functions.  Almost, but not quite the same as
  66  *      the 4.2 functions
  67  */
  68
  69 #define SYSV_SYSTEM_DIR
  70
  71 /* Define this symbol if your system has the functions bcopy, etc. */
  72
  73 #define BSTRING
  74
  75 /* The file containing the kernel's symbol table is called /unix.  */
  76
  77 #define KERNEL_FILE "/unix"
  78
  79 /* The symbol in the kernel where the load average is found
  80    is named avenrun.  */
  81
  82 #define LDAV_SYMBOL "avenrun"
  83 \f
  84 /* Special itemss needed to make Emacs run on this system.  */
  85
  86 #ifndef __GNUC__
  87 #define LINKER cc
  88 #endif
  89
  90 /* Prevent -lg from being used for debugging.  Not needed.  */
  91
  92 #define LIBS_DEBUG
  93
  94 /* No need to specify -lc when linking.  */
  95
  96 #define LIB_STANDARD
  97
  98 /* Use terminfo instead of termcap.  */
  99
 100 #define TERMINFO
 101
 102 /* The following definition seems to be needed in AIX version 3.1.6.8.
 103    It may not have been needed in certain earlier versions.  */
 104 #define HAVE_TCATTR
 105
 106 /* Include unistd.h, even though we don't define POSIX.  */
 107 #define NEED_UNISTD_H
 108
 109 /* AIX doesn't define this.  */
 110 #define unix 1
 111
 112 #ifndef __GNUC__
 113 /* Some programs in src produce warnings saying certain subprograms
 114    are to comples and need a MAXMEM value greater than 2000 for
 115    additional optimization.  --nils@exp-math.uni-essen.de */
 116 #define C_SWITCH_SYSTEM -ma -qmaxmem=4000
 117 #endif
 118
 119 /* string.h defines rindex as a macro, at least with native cc, so we
 120    lose declaring char * rindex without this.
 121    It is just a guess which versions of AIX need this definition.  */
 122 #undef HAVE_STRING_H
 123
 124 /* For AIX, it turns out compiling emacs under AIX 3.2.4 REQUIRES "cc -g"
 125    because "cc -O" crashes. Under AIX 3.2.5, "cc -O" is required because
 126    "cc -g" crashes. Go figure.  --floppy@merlin.mit.edu */
 127 /* The above isn't generally true.  If it occurs with some compiler
 128    release, seek a fixed version, be it XLC or GCC.  The XLC version
 129    isn't tied to the OS version on AIX any more than elsewhere.  XLC
 130    (the IBM compiler) can use -g with -O.  (-O3 is also a possibility
 131    for the optimization level.)  -- fx, after David Edelsohn.  */
 132 #define C_DEBUG_SWITCH -g -O
 133
 134 /* Perry Smith <pedz@ddivt1.austin.ibm.com> says these are correct.  */
 135 #define SIGNALS_VIA_CHARACTERS
 136 #define MAIL_USE_LOCKF
 137 #define CLASH_DETECTION
 138
 139 /* Perry Smith <pedz@ddivt1.austin.ibm.com> says these are correct.  */
 140 #define POSIX_SIGNALS
 141 #undef sigmask
 142
 143 /* olson@mcs.anl.gov says -li18n is needed by -lXm.  */
 144 #define LIB_MOTIF -lXm -li18n
 145
 146 #ifndef HAVE_LIBXMU
 147 #define LIBXMU
 148
 149 /* Unfortunately without libXmu we cannot support EditRes.  */
 150 #define NO_EDITRES
 151 #endif
 152
 153 /* On AIX Emacs uses the gmalloc.c malloc implementation.  But given
 154    the way this system works, libc functions that return malloced
 155    memory use the libc malloc implementation. Calling xfree or
 156    xrealloc on the results of such functions results in a crash.
 157
 158    One solution for this could be to define SYSTEM_MALLOC here, but
 159    that does not currently work on this system.
 160
 161    It is possible to completely override the malloc implementation on
 162    AIX, but that involves putting the malloc functions in a shared
 163    library and setting the MALLOCTYPE environment variable to point to
 164    tha shared library.
 165
 166    Emacs currently calls xrealloc on the results of get_current_dir name,
 167    to avoid a crash just use the Emacs implementation for that function.
 168 */
 169 #define BROKEN_GET_CURRENT_DIR_NAME 1
 170
 171 /* arch-tag: 38fe75ea-6aef-42bd-8449-bc34d921a562
 172    (do not change this comment) */