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 /*
  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 /* No need to specify -lc when linking.  */
  91
  92 #define LIB_STANDARD
  93
  94 /* -lpthreads seems to be necessary for Xlib in X11R6, and should be harmless
  95    on older versions of X where it happens to exist.  */
  96 #ifdef HAVE_LIBPTHREADS
  97 #define LIBS_SYSTEM -lrts -lIM -liconv -lpthreads
  98 #else
  99 /* IBM's X11R5 use -lIM and -liconv in AIX 3.2.2.  */
 100 #define LIBS_SYSTEM -lrts -lIM -liconv
 101 #endif
 102
 103 #define LD_SWITCH_SYSTEM_TEMACS -Wl,-bnodelcsect
 104
 105
 106
 107 /* Use terminfo instead of termcap.  */
 108
 109 #define TERMINFO
 110
 111 /* The following definition seems to be needed in AIX version 3.1.6.8.
 112    It may not have been needed in certain earlier versions.  */
 113 #define HAVE_TCATTR
 114
 115 /* Include unistd.h, even though we don't define POSIX.  */
 116 #define NEED_UNISTD_H
 117
 118 /* AIX doesn't define this.  */
 119 #define unix 1
 120
 121 /* string.h defines rindex as a macro, at least with native cc, so we
 122    lose declaring char * rindex without this.
 123    It is just a guess which versions of AIX need this definition.  */
 124 #undef HAVE_STRING_H
 125
 126 /* Perry Smith <pedz@ddivt1.austin.ibm.com> says these are correct.  */
 127 #define SIGNALS_VIA_CHARACTERS
 128 #define MAIL_USE_LOCKF
 129 #define CLASH_DETECTION
 130
 131 /* Perry Smith <pedz@ddivt1.austin.ibm.com> says these are correct.  */
 132 #define POSIX_SIGNALS
 133 #undef sigmask
 134
 135 #ifndef HAVE_LIBXMU
 136 /* Unfortunately without libXmu we cannot support EditRes.  */
 137 #define NO_EDITRES
 138 #endif
 139
 140 /* On AIX Emacs uses the gmalloc.c malloc implementation.  But given
 141    the way this system works, libc functions that return malloced
 142    memory use the libc malloc implementation. Calling xfree or
 143    xrealloc on the results of such functions results in a crash.
 144
 145    One solution for this could be to define SYSTEM_MALLOC here, but
 146    that does not currently work on this system.
 147
 148    It is possible to completely override the malloc implementation on
 149    AIX, but that involves putting the malloc functions in a shared
 150    library and setting the MALLOCTYPE environment variable to point to
 151    that shared library.
 152
 153    Emacs currently calls xrealloc on the results of get_current_dir name,
 154    to avoid a crash just use the Emacs implementation for that function.
 155 */
 156 #define BROKEN_GET_CURRENT_DIR_NAME 1
 157
 158 #define UNEXEC unexaix.o
 159
 160 #define ORDINARY_LINK
 161
 162 /* arch-tag: 38fe75ea-6aef-42bd-8449-bc34d921a562
 163    (do not change this comment) */