src/s/aix4-2.h

   1 /*
   2 Copyright (C) 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
   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  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
  64  *      The 4.2 opendir, etc., library functions.
  65  */
  66
  67 /* #define NONSYSTEM_DIR_LIBRARY */
  68
  69 /*
  70  *      Define SYSV_SYSTEM_DIR to use the V.3 getdents/readir
  71  *      library functions.  Almost, but not quite the same as
  72  *      the 4.2 functions
  73  */
  74
  75 #define SYSV_SYSTEM_DIR
  76
  77 /* Define this symbol if your system has the functions bcopy, etc. */
  78
  79 #define BSTRING
  80
  81 /* subprocesses should be defined if you want to
  82  have code for asynchronous subprocesses
  83  (as used in M-x compile and M-x shell).
  84  This is supposed to work now on system V release 2.  */
  85
  86 #define subprocesses
  87
  88 /* The file containing the kernel's symbol table is called /unix.  */
  89
  90 #define KERNEL_FILE "/unix"
  91
  92 /* The symbol in the kernel where the load average is found
  93    is named avenrun.  */
  94
  95 #define LDAV_SYMBOL "avenrun"
  96 \f
  97 /* Special itemss needed to make Emacs run on this system.  */
  98
  99
 100
 101 /* USG systems tend to put everything declared static
 102    into the initialized data area, which becomes pure after dumping Emacs.
 103    Foil this.  Emacs carefully avoids static vars inside functions.  */
 104
 105 #undef static
 106
 107 /* Compiler bug bites on many systems when default ADDR_CORRECT is used.  */
 108
 109 /* #define ADDR_CORRECT(x) (x) */
 110
 111 #ifndef __GNUC__
 112 #define LINKER cc
 113 #endif
 114
 115 /* Prevent -lg from being used for debugging.  Not needed.  */
 116
 117 #define LIBS_DEBUG
 118
 119 /* No need to specify -lc when linking.  */
 120
 121 #define LIB_STANDARD
 122
 123 /* Use terminfo instead of termcap.  */
 124
 125 #define TERMINFO
 126
 127 /* The following definition seems to be needed in AIX version 3.1.6.8.
 128    It may not have been needed in certain earlier versions.  */
 129 #define HAVE_TCATTR
 130
 131 /* Include unistd.h, even though we don't define POSIX.  */
 132 #define NEED_UNISTD_H
 133
 134 /* AIX doesn't define this.  */
 135 #define unix 1
 136
 137 #ifndef __GNUC__
 138 /* Some programs in src produce warnings saying certain subprograms
 139    are to comples and need a MAXMEM value greater than 2000 for
 140    additional optimization.  --nils@exp-math.uni-essen.de */
 141 #define C_SWITCH_SYSTEM -ma -qmaxmem=4000
 142 #endif
 143
 144 /* The character-composition stuff is broken in X11R5.
 145    Even with XIMStatusNothing aliased to XIMStatusNone,
 146    tranle@intellicorp.com (Minh Tran-Le) reports that enabling
 147    the internationalization code causes the modifier keys C, M and Shift
 148    to beep after a mouse click.  */
 149 #define X11R5_INHIBIT_I18N
 150
 151 /* string.h defines rindex as a macro, at least with native cc, so we
 152    lose declaring char * rindex without this.
 153    It is just a guess which versions of AIX need this definition.  */
 154 #undef HAVE_STRING_H
 155
 156 /* For AIX, it turns out compiling emacs under AIX 3.2.4 REQUIRES "cc -g"
 157    because "cc -O" crashes. Under AIX 3.2.5, "cc -O" is required because
 158    "cc -g" crashes. Go figure.  --floppy@merlin.mit.edu */
 159 /* The above isn't generally true.  If it occurs with some compiler
 160    release, seek a fixed version, be it XLC or GCC.  The XLC version
 161    isn't tied to the OS version on AIX any more than elsewhere.  XLC
 162    (the IBM compiler) can use -g with -O.  (-O3 is also a possibility
 163    for the optimization level.)  -- fx, after David Edelsohn.  */
 164 #define C_DEBUG_SWITCH -g -O
 165
 166 /* Perry Smith <pedz@ddivt1.austin.ibm.com> says these are correct.  */
 167 #define SIGNALS_VIA_CHARACTERS
 168 #define MAIL_USE_LOCKF
 169 #define CLASH_DETECTION
 170
 171 /* Perry Smith <pedz@ddivt1.austin.ibm.com> says these are correct.  */
 172 #define POSIX_SIGNALS
 173 #undef sigmask
 174
 175 /* olson@mcs.anl.gov says -li18n is needed by -lXm.  */
 176 #define LIB_MOTIF -lXm -li18n
 177
 178 #ifndef HAVE_LIBXMU
 179 #define LIBXMU
 180
 181 /* Unfortunately without libXmu we cannot support EditRes.  */
 182 #define NO_EDITRES
 183 #endif
 184
 185 /* On AIX Emacs uses the gmalloc.c malloc implementation.  But given
 186    the way this system works, libc functions that return malloced
 187    memory use the libc malloc implementation. Calling xfree or
 188    xrealloc on the results of such functions results in a crash.
 189
 190    One solution for this could be to define SYSTEM_MALLOC here, but
 191    that does not currently work on this system.
 192
 193    It is possible to completely override the malloc implementation on
 194    AIX, but that involves putting the malloc functions in a shared
 195    library and setting the MALLOCTYPE environment variable to point to
 196    tha shared library.
 197
 198    Emacs currently calls xrealloc on the results of get_current_dir name,
 199    to avoid a crash just use the Emacs implementation for that function.
 200 */
 201 #define BROKEN_GET_CURRENT_DIR_NAME 1
 202
 203 /* arch-tag: 38fe75ea-6aef-42bd-8449-bc34d921a562
 204    (do not change this comment) */