* syswait.h: Remove old if 0 code. Do not define WAITTYPE, it was
[bpt/emacs.git] / 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) */