1/* system description file for Interactive (ISC) Unix version 2.2 on the 386.
2
3   Copyright (C) 1999, 2001, 2002, 2003, 2004, 2005, 2006,
4                 2007  Free Software Foundation, Inc.
5
6This file is part of GNU Emacs.
7
8GNU Emacs is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 2, or (at your option)
11any later version.
12
13GNU Emacs is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with GNU Emacs; see the file COPYING.  If not, write to
20the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21Boston, MA 02110-1301, USA.  */
22
23
24#include "usg5-3.h"
25
26/* select (in -linet) works okay on X ptys, but not on the serial port.
27   karl@cs.umb.edu says that with that select call, subprocesses made by
28   (e.g.) M-x grep don't exit cleanly, they just hang.  Similar problems
29   have been observed in ISC 3.0.  */
30#define BROKEN_SELECT_NON_X
31
32/* karl@cs.umb.edu says that ISC's socket support (in -linet) isn't
33   what Emacs needs; it makes interrupt-shell-subjob and the like do
34   nothing.  But that appears to have been another manifestation of
35   the broken select, so it should now be safe to define this again.  */
36#define HAVE_SOCKETS
37
38#define NO_SOCKETS_IN_FILE_SYSTEM
39#define NEED_NET_ERRNO_H
40
41/* This keeps the .cdbx section that gcc puts out when generating
42   stabs-in-coff output, so Emacs can be debugged.  --karl@cs.umb.edu. */
43#define USG_SHARED_LIBRARIES
44
45/* We can support lock files.  */
46#define CLASH_DETECTION
47#define NO_FCHMOD
48
49#define HAVE_PTYS
50#define MAXNAMLEN 512
51#define O_NDELAY O_NONBLOCK
52#define MEMORY_IN_STRING_H
53
54/* Tell gmalloc.c that we don't have memmove (system include files to the
55   contrary!). */
56#define MEMMOVE_MISSING
57
58/* Send a signal to a subprocess by "typing" a signal character. */
59#define SIGNALS_VIA_CHARACTERS
60
61/* -lPW is only needed if not using Gcc.  We used to include -lcposix here
62   for the rename function, but some people say ISC's rename doesn't
63   work correctly with Emacs so we use Emacs' emulation instead. */
64#if defined (__GNUC__)
65#  define LIB_STANDARD_1 -lcposix
66#else /* !__GNUC__ */
67#  define LIB_STANDARD_1 -lPW
68#endif /* !__GNUC__ */
69
70/* LIB_STANDARD_1 is used both here and in LIBS_SYSTEM
71   (the latter for the sake of configure).  */
72#define LIB_STANDARD LIB_STANDARD_1 -lc
73
74#define NO_X_DESTROY_DATABASE
75
76/* -linet may be needed to avoid undefined symbols such as gethostname,
77   inet_addr, gethostbyname, socket, connect, ...  */
78#define LIBS_SYSTEM -linet LIB_STANDARD_1
79
80/* This system has job control.  */
81#undef NOMULTIPLEJOBS
82
83/* Inhibit asm code in netinet/in.h.  Strictly speaking, only necessary
84   when -traditional is being used, but it doesn't hurt to
85   unconditionally define this.  */
86#define NO_ASM
87
88/* -traditional is not necessary if the system header files are fixed to
89   define getc and putc in the absence of _POSIX_SOURCE.  GCC's from 2.4.4
90   on do this. */
91#if !defined (__GNUC__) || __GNUC__ < 2
92#  define C_SWITCH_SYSTEM -traditional
93#endif
94
95/* Some versions of ISC are said to define S_IFLNK even tho
96   they don't really support symlinks.  */
97#undef S_IFLNK
98
99/* arch-tag: 4de02713-eac5-4360-9d36-fd82c7a3ae44
100   (do not change this comment) */
101