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3a707ba5 | 1 | /* This file is the configuration file for Linux-based GNU systems |
bb7b4368 | 2 | Copyright (C) 1985, 86, 92, 94, 96, 1999 Free Software Foundation, Inc. |
566e3587 JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
566e3587 | 20 | |
b49ef455 JB |
21 | /* This file was put together by Michael K. Johnson and Rik Faith. */ |
22 | ||
566e3587 JB |
23 | |
24 | /* | |
25 | * Define symbols to identify the version of Unix this is. | |
26 | * Define all the symbols that apply correctly. | |
27 | */ | |
28 | ||
29 | /* #define UNIPLUS */ | |
30 | /* #define USG5 */ | |
31 | #define USG | |
8e4c450d | 32 | /* #define BSD_SYSTEM */ |
566e3587 JB |
33 | #define LINUX |
34 | ||
35 | /* SYSTEM_TYPE should indicate the kind of system you are using. | |
36 | It sets the Lisp variable system-type. */ | |
37 | ||
3a707ba5 | 38 | #define SYSTEM_TYPE "gnu/linux" /* All the best software is free. */ |
566e3587 | 39 | |
65953053 RS |
40 | /* Check the version number of Linux--if it is at least 1.2.0, |
41 | it is safe to use SIGIO. */ | |
42 | #ifndef NOT_C_CODE | |
43 | #ifdef emacs | |
b764619d | 44 | #ifdef HAVE_LINUX_VERSION_H |
65953053 | 45 | #include <linux/version.h> |
566e3587 | 46 | |
65953053 RS |
47 | #if LINUX_VERSION_CODE > 0x10200 |
48 | #define LINUX_SIGIO_DOES_WORK | |
aa7fcbb0 | 49 | #endif /* LINUX_VERSION_CODE > 0x10200 */ |
2e38d862 AS |
50 | #if LINUX_VERSION_CODE >= 0x20000 |
51 | #define LINUX_MAP_SHARED_DOES_WORK | |
52 | #endif /* LINUX_VERSION_CODE >= 0x20000 */ | |
b764619d | 53 | #endif /* HAVE_LINUX_VERSION_H */ |
aa7fcbb0 RS |
54 | #endif /* emacs */ |
55 | #endif /* NOT_C_CODE */ | |
566e3587 JB |
56 | |
57 | /* Letter to use in finding device name of first pty, | |
58 | if system supports pty's. 'p' means it is /dev/ptyp0 */ | |
59 | ||
60 | #define FIRST_PTY_LETTER 'p' | |
61 | ||
62 | /* | |
63 | * Define HAVE_TERMIOS if the system provides POSIX-style | |
64 | * functions and macros for terminal control. | |
65 | */ | |
66 | ||
67 | #define HAVE_TERMIOS | |
68 | ||
566e3587 JB |
69 | /* |
70 | * Define HAVE_PTYS if the system supports pty devices. | |
71 | */ | |
72 | ||
73 | #define HAVE_PTYS | |
74 | ||
75 | /* Uncomment this later when other problems are dealt with -mkj */ | |
76 | ||
dad29761 | 77 | #define HAVE_SOCKETS |
566e3587 JB |
78 | |
79 | /* Define this symbol if your system has the functions bcopy, etc. */ | |
80 | ||
81 | #define BSTRING | |
82 | ||
83 | /* subprocesses should be defined if you want to | |
84 | have code for asynchronous subprocesses | |
85 | (as used in M-x compile and M-x shell). | |
86 | This is generally OS dependent, and not supported | |
87 | under most USG systems. */ | |
88 | ||
89 | #define subprocesses | |
90 | ||
91 | /* define MAIL_USE_FLOCK if the mailer uses flock | |
92 | to interlock access to /usr/spool/mail/$USER. | |
93 | The alternative is that a lock file named | |
94 | /usr/spool/mail/$USER.lock. */ | |
95 | ||
3a707ba5 RS |
96 | /* On GNU/Linux systems, both methods are used by various mail |
97 | programs. I assume that most people are using newer mailers that | |
98 | have heard of flock. Change this if you need to. */ | |
566e3587 JB |
99 | |
100 | #define MAIL_USE_FLOCK | |
101 | ||
102 | /* Define CLASH_DETECTION if you want lock files to be written | |
103 | so that Emacs can tell instantly when you try to modify | |
104 | a file that someone else has modified in his Emacs. */ | |
105 | ||
b2e209ba | 106 | #define CLASH_DETECTION |
566e3587 JB |
107 | |
108 | /* Here, on a separate page, add any special hacks needed | |
109 | to make Emacs work on this system. For example, | |
110 | you might define certain system call names that don't | |
111 | exist on your system, or that do different things on | |
112 | your system and must be used only through an encapsulation | |
113 | (Which you should place, by convention, in sysdep.c). */ | |
114 | \f | |
566e3587 JB |
115 | /* If you mount the proc file system somewhere other than /proc |
116 | you will have to uncomment the following and make the proper | |
117 | changes */ | |
118 | ||
119 | /* #define LINUX_LDAV_FILE "/proc/loadavg" */ | |
120 | ||
fde448f4 | 121 | /* This is needed for dispnew.c:update_frame */ |
566e3587 | 122 | |
5e5623c2 | 123 | #ifdef emacs |
a9c82aaf | 124 | #include <stdio.h> /* Get the definition of _IO_STDIO_H. */ |
4dee6d0d | 125 | #if defined(_IO_STDIO_H) || defined(_STDIO_USES_IOSTREAM) |
5e5623c2 | 126 | /* new C libio names */ |
c2c3f859 | 127 | #define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \ |
5e5623c2 RS |
128 | ((FILE)->_IO_write_ptr - (FILE)->_IO_write_base) |
129 | #else /* !_IO_STDIO_H */ | |
130 | /* old C++ iostream names */ | |
c2c3f859 | 131 | #define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \ |
5e5623c2 RS |
132 | ((FILE)->_pptr - (FILE)->_pbase) |
133 | #endif /* !_IO_STDIO_H */ | |
134 | #endif /* emacs */ | |
566e3587 | 135 | |
5101db23 | 136 | /* Ask GCC where to find libgcc.a. */ |
08ddf771 | 137 | #define LIB_GCC `$(CC) $(C_SWITCH_X_SITE) -print-libgcc-file-name` |
5101db23 | 138 | |
4dee6d0d | 139 | #ifndef __ELF__ |
3a707ba5 | 140 | /* GNU/Linux usually has crt0.o in a non-standard place */ |
566e3587 | 141 | #define START_FILES pre-crt0.o /usr/lib/crt0.o |
4dee6d0d | 142 | #else |
01b79236 | 143 | #define START_FILES pre-crt0.o /usr/lib/crt1.o /usr/lib/crti.o |
4dee6d0d | 144 | #endif |
566e3587 | 145 | |
588a9a3e RS |
146 | #ifdef __ELF__ |
147 | /* Here is how to find X Windows. LD_SWITCH_X_SITE_AUX gives an -R option | |
148 | says where to find X windows at run time. */ | |
a28c4a8e | 149 | |
f649aa04 RS |
150 | #ifdef __mips__ |
151 | #define LD_SWITCH_SYSTEM -G 0 LD_SWITCH_X_SITE_AUX | |
152 | #else | |
588a9a3e | 153 | #define LD_SWITCH_SYSTEM LD_SWITCH_X_SITE_AUX |
f649aa04 | 154 | #endif /* __mips__ */ |
588a9a3e RS |
155 | #endif /* __ELF__ */ |
156 | ||
3a707ba5 RS |
157 | /* As of version 1.1.51, Linux did not actually implement SIGIO. |
158 | But it works in newer versions. */ | |
566e3587 | 159 | #ifdef emacs |
65953053 RS |
160 | #ifdef LINUX_SIGIO_DOES_WORK |
161 | #define INTERRUPT_INPUT | |
162 | #else | |
bb7b4368 | 163 | #define BROKEN_SIGIO |
0f2256ef RS |
164 | /* Some versions of Linux define SIGURG and SIGPOLL as aliases for SIGIO. |
165 | This prevents lossage in process.c. */ | |
bb7b4368 PE |
166 | #define BROKEN_SIGURG |
167 | #define BROKEN_SIGPOLL | |
566e3587 | 168 | #endif |
65953053 | 169 | #endif |
566e3587 JB |
170 | |
171 | /* This is needed for sysdep.c */ | |
172 | ||
566e3587 JB |
173 | #define NO_SIOCTL_H /* don't have sioctl.h */ |
174 | ||
566e3587 JB |
175 | #define HAVE_VFORK |
176 | #define HAVE_SYS_SIGLIST | |
177 | #define HAVE_GETWD /* cure conflict with getcwd? */ | |
813319d0 | 178 | #define HAVE_WAIT_HEADER |
566e3587 | 179 | |
566e3587 | 180 | #define SYSV_SYSTEM_DIR /* use dirent.h */ |
566e3587 | 181 | |
1abbab7a | 182 | #define POSIX /* affects getpagesize.h and systty.h */ |
566e3587 JB |
183 | #define POSIX_SIGNALS |
184 | ||
566e3587 JB |
185 | /* Best not to include -lg, unless it is last on the command line */ |
186 | #define LIBS_DEBUG | |
4dee6d0d | 187 | #ifndef __ELF__ |
566e3587 | 188 | #define LIB_STANDARD -lc /* avoid -lPW */ |
4dee6d0d | 189 | #else |
08ddf771 | 190 | #undef LIB_GCC |
4dee6d0d | 191 | #define LIB_GCC |
01b79236 | 192 | #define LIB_STANDARD -lgcc -lc -lgcc /usr/lib/crtn.o |
4dee6d0d | 193 | #endif |
3233bbe1 | 194 | |
6f10bc9d RS |
195 | /* Don't use -g in test compiles in configure. |
196 | This is so we will use the same shared libs for that linking | |
197 | that are used when linking temacs. */ | |
198 | #ifdef THIS_IS_CONFIGURE | |
199 | #define C_DEBUG_SWITCH | |
200 | #endif | |
201 | ||
9e479734 JB |
202 | /* Let's try this out, just in case. |
203 | Nah. Rik Faith <faith@cs.unc.edu> says it doesn't work well. */ | |
204 | /* #define SIGNALS_VIA_CHARACTERS */ | |
9199fa7f JB |
205 | |
206 | /* Rob Malouf <malouf@csli.stanford.edu> says: | |
207 | SYSV IPC is standard a standard part of Linux since version 0.99pl10, | |
208 | and is a very common addition to previous versions. */ | |
cafdb68a RS |
209 | |
210 | #ifdef TERM | |
1077bc04 | 211 | #define LIBS_SYSTEM -lclient |
cafdb68a RS |
212 | #define C_SWITCH_SYSTEM -D_BSD_SOURCE -I/usr/src/term |
213 | #else | |
edb0cf8d RS |
214 | /* alane@wozzle.linet.org says that -lipc is not a separate library, |
215 | since libc-4.4.1. So -lipc was deleted. */ | |
1077bc04 | 216 | #define LIBS_SYSTEM |
cafdb68a RS |
217 | #define C_SWITCH_SYSTEM -D_BSD_SOURCE |
218 | #endif | |
219 | ||
c7ce28ce RS |
220 | /* Paul Abrahams <abrahams@equinox.shaysnet.com> says this is needed. */ |
221 | #define LIB_MOTIF -lXm -lXpm | |
222 | ||
be1d1a1a | 223 | #ifdef HAVE_LIBNCURSES |
65953053 | 224 | #define TERMINFO |
565b8b0d | 225 | #define LIBS_TERMCAP -lncurses |
65953053 RS |
226 | #endif |
227 | ||
9199fa7f | 228 | #define HAVE_SYSVIPC |
b04101bb | 229 | |
4dee6d0d KH |
230 | #ifdef __ELF__ |
231 | #define UNEXEC unexelf.o | |
2e38d862 | 232 | #ifndef LINUX_MAP_SHARED_DOES_WORK |
baea3bdd | 233 | #define UNEXEC_USE_MAP_PRIVATE |
4dee6d0d | 234 | #endif |
2e38d862 | 235 | #endif |
4dee6d0d | 236 | |
8427dec9 RS |
237 | #ifdef LINUX_QMAGIC |
238 | ||
239 | #define HAVE_TEXT_START | |
240 | #define UNEXEC unexsunos4.o | |
241 | #define N_PAGSIZ(x) PAGE_SIZE | |
242 | ||
243 | #else /* not LINUX_QMAGIC */ | |
244 | ||
b04101bb RS |
245 | #define A_TEXT_OFFSET(hdr) (N_MAGIC(hdr) == QMAGIC ? sizeof (struct exec) : 0) |
246 | #define A_TEXT_SEEK(hdr) (N_TXTOFF(hdr) + A_TEXT_OFFSET(hdr)) | |
247 | #define ADJUST_EXEC_HEADER \ | |
248 | unexec_text_start = N_TXTADDR(ohdr) + A_TEXT_OFFSET(ohdr) | |
967ac200 | 249 | |
8427dec9 RS |
250 | #endif /* not LINUX_QMAGIC */ |
251 | ||
6f10bc9d | 252 | #if 0 |
967ac200 RS |
253 | /* In 19.23 and 19.24, configure sometimes fails to define these. |
254 | It has to do with the fact that configure uses CFLAGS when linking | |
255 | while Makefile.in.in (erroneously) fails to do so when linking temacs. */ | |
256 | #ifndef HAVE_GETTIMEOFDAY | |
257 | #define HAVE_GETTIMEOFDAY | |
258 | #endif | |
259 | #ifndef HAVE_MKDIR | |
260 | #define HAVE_MKDIR | |
261 | #endif | |
262 | #ifndef HAVE_RMDIR | |
263 | #define HAVE_RMDIR | |
264 | #endif | |
265 | #ifndef HAVE_XSCREENNUMBEROFSCREEN | |
266 | #define HAVE_XSCREENNUMBEROFSCREEN | |
267 | #endif | |
639f52d8 RS |
268 | #endif /* 0 */ |
269 | ||
270 | /* This is to work around mysterious gcc failures in some system versions. | |
271 | It is unlikely that Emacs changes will work around this problem; | |
272 | therefore, this should remain permanently. */ | |
e3b89505 RS |
273 | #ifndef HAVE_XRMSETDATABASE |
274 | #define HAVE_XRMSETDATABASE | |
275 | #endif | |
e2000885 RS |
276 | |
277 | /* The regex.o routines are a part of the GNU C-library used with Linux. */ | |
ea18e284 RS |
278 | /* However, sometimes they disagree with the src/regex.h that comes with Emacs, |
279 | and that can make trouble in etags.c because it gets the regex.h from Emacs | |
280 | and the function definitions in libc. So turn this off. */ | |
281 | /* #define REGEXP_IN_LIBC */ | |
282 | ||
3743c30c RS |
283 | /* Use BSD process groups, but use setpgid() instead of setpgrp() to |
284 | actually set a process group. */ | |
285 | ||
286 | #define BSD_PGRPS | |
9e1348ee | 287 | #define setpgrp(pid,pgid) setpgid(pid,pgid) |
e0a6ee5e | 288 | |
2327e4a0 GM |
289 | #define NARROWPROTO 1 |
290 | ||
e0a6ee5e RS |
291 | /* Use mmap directly for allocating larger buffers. */ |
292 | #ifdef DOUG_LEA_MALLOC | |
293 | #undef REL_ALLOC | |
294 | #endif |