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3a707ba5 | 1 | /* This file is the configuration file for Linux-based GNU systems |
2f86b22b GM |
2 | |
3 | Copyright (C) 1985, 1986, 1992, 1994, 1996, 1999, 2001, 2002, 2003, 2004, | |
4 | 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. | |
566e3587 JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
4b158629 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
566e3587 | 9 | it under the terms of the GNU General Public License as published by |
4b158629 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
566e3587 JB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
4b158629 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
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 | ||
566e3587 | 29 | #define USG |
8db5530a | 30 | #define GNU_LINUX |
566e3587 JB |
31 | |
32 | /* SYSTEM_TYPE should indicate the kind of system you are using. | |
33 | It sets the Lisp variable system-type. */ | |
34 | ||
3a707ba5 | 35 | #define SYSTEM_TYPE "gnu/linux" /* All the best software is free. */ |
566e3587 | 36 | |
65953053 RS |
37 | #ifndef NOT_C_CODE |
38 | #ifdef emacs | |
b764619d | 39 | #ifdef HAVE_LINUX_VERSION_H |
65953053 | 40 | #include <linux/version.h> |
566e3587 | 41 | |
85a71b37 | 42 | #if LINUX_VERSION_CODE >= 0x20400 |
c5e7567d DN |
43 | /* 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works. */ |
44 | #define SIGNALS_VIA_CHARACTERS | |
85a71b37 | 45 | #endif /* LINUX_VERSION_CODE >= 0x20400 */ |
b764619d | 46 | #endif /* HAVE_LINUX_VERSION_H */ |
aa7fcbb0 RS |
47 | #endif /* emacs */ |
48 | #endif /* NOT_C_CODE */ | |
566e3587 | 49 | |
71125fb8 GM |
50 | #if defined HAVE_GRANTPT |
51 | #define UNIX98_PTYS | |
566e3587 | 52 | |
71125fb8 GM |
53 | /* Run only once. We need a `for'-loop because the code uses |
54 | `continue'. */ | |
566e3587 | 55 | |
71125fb8 | 56 | #define PTY_ITERATION for (i = 0; i < 1; i++) |
fdc5e0fc | 57 | |
71125fb8 GM |
58 | #ifdef HAVE_GETPT |
59 | #define PTY_NAME_SPRINTF | |
60 | #define PTY_OPEN fd = getpt () | |
61 | #else /* not HAVE_GETPT */ | |
62 | #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx"); | |
63 | #endif /* not HAVE_GETPT */ | |
64 | ||
65 | /* Note that grantpt and unlockpt may fork. We must block SIGCHLD to | |
66 | prevent sigchld_handler from intercepting the child's death. */ | |
67 | ||
68 | #define PTY_TTY_NAME_SPRINTF \ | |
69 | { \ | |
70 | char *ptyname; \ | |
71 | \ | |
72 | sigblock (sigmask (SIGCHLD)); \ | |
73 | if (grantpt (fd) == -1 || unlockpt (fd) == -1 \ | |
74 | || !(ptyname = ptsname(fd))) \ | |
75 | { \ | |
76 | sigunblock (sigmask (SIGCHLD)); \ | |
77 | close (fd); \ | |
78 | return -1; \ | |
79 | } \ | |
80 | strncpy (pty_name, ptyname, sizeof (pty_name)); \ | |
81 | pty_name[sizeof (pty_name) - 1] = 0; \ | |
82 | sigunblock (sigmask (SIGCHLD)); \ | |
83 | } | |
fdc5e0fc | 84 | |
dacbb818 | 85 | #else /* not HAVE_GRANTPT */ |
fdc5e0fc | 86 | |
71125fb8 GM |
87 | /* Letter to use in finding device name of first pty, |
88 | if system supports pty's. 'p' means it is /dev/ptyp0 */ | |
fdc5e0fc | 89 | |
71125fb8 | 90 | #define FIRST_PTY_LETTER 'p' |
fdc5e0fc | 91 | |
132d0475 | 92 | #endif /* not HAVE_GRANTPT */ |
fdc5e0fc | 93 | |
71125fb8 GM |
94 | /* Define HAVE_TERMIOS if the system provides POSIX-style |
95 | functions and macros for terminal control. */ | |
566e3587 JB |
96 | |
97 | #define HAVE_TERMIOS | |
98 | ||
71125fb8 | 99 | /* Define HAVE_PTYS if the system supports pty devices. */ |
566e3587 JB |
100 | |
101 | #define HAVE_PTYS | |
102 | ||
dad29761 | 103 | #define HAVE_SOCKETS |
566e3587 JB |
104 | |
105 | /* Define this symbol if your system has the functions bcopy, etc. */ | |
566e3587 JB |
106 | #define BSTRING |
107 | ||
06e111a6 | 108 | /* This is used in list_system_processes. */ |
40c5931c | 109 | #define HAVE_PROCFS 1 |
40c5931c | 110 | |
566e3587 JB |
111 | |
112 | /* Define CLASH_DETECTION if you want lock files to be written | |
113 | so that Emacs can tell instantly when you try to modify | |
114 | a file that someone else has modified in his Emacs. */ | |
b2e209ba | 115 | #define CLASH_DETECTION |
566e3587 JB |
116 | |
117 | /* Here, on a separate page, add any special hacks needed | |
118 | to make Emacs work on this system. For example, | |
119 | you might define certain system call names that don't | |
120 | exist on your system, or that do different things on | |
121 | your system and must be used only through an encapsulation | |
122 | (Which you should place, by convention, in sysdep.c). */ | |
123 | \f | |
fde448f4 | 124 | /* This is needed for dispnew.c:update_frame */ |
566e3587 | 125 | |
5e5623c2 | 126 | #ifdef emacs |
a9c82aaf | 127 | #include <stdio.h> /* Get the definition of _IO_STDIO_H. */ |
4dee6d0d | 128 | #if defined(_IO_STDIO_H) || defined(_STDIO_USES_IOSTREAM) |
5e5623c2 | 129 | /* new C libio names */ |
c2c3f859 | 130 | #define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \ |
5e5623c2 | 131 | ((FILE)->_IO_write_ptr - (FILE)->_IO_write_base) |
65f451d0 DN |
132 | #elif defined (__UCLIBC__) |
133 | /* using the uClibc library */ | |
134 | #define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \ | |
135 | ((FILE)->__bufpos - (FILE)->__bufstart) | |
136 | #else /* !_IO_STDIO_H && ! __UCLIBC__ */ | |
5e5623c2 | 137 | /* old C++ iostream names */ |
c2c3f859 | 138 | #define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \ |
5e5623c2 | 139 | ((FILE)->_pptr - (FILE)->_pbase) |
65f451d0 | 140 | #endif /* !_IO_STDIO_H && ! __UCLIBC__ */ |
5e5623c2 | 141 | #endif /* emacs */ |
566e3587 | 142 | |
566e3587 | 143 | #ifdef emacs |
65953053 | 144 | #define INTERRUPT_INPUT |
65953053 | 145 | #endif |
566e3587 | 146 | |
566e3587 | 147 | #define SYSV_SYSTEM_DIR /* use dirent.h */ |
566e3587 | 148 | |
1abbab7a | 149 | #define POSIX /* affects getpagesize.h and systty.h */ |
566e3587 | 150 | |
4dee6d0d | 151 | #define UNEXEC unexelf.o |
8427dec9 | 152 | |
639f52d8 RS |
153 | /* This is to work around mysterious gcc failures in some system versions. |
154 | It is unlikely that Emacs changes will work around this problem; | |
155 | therefore, this should remain permanently. */ | |
e3b89505 RS |
156 | #ifndef HAVE_XRMSETDATABASE |
157 | #define HAVE_XRMSETDATABASE | |
158 | #endif | |
e2000885 | 159 | |
2327e4a0 GM |
160 | #define NARROWPROTO 1 |
161 | ||
e0a6ee5e RS |
162 | /* Use mmap directly for allocating larger buffers. */ |
163 | #ifdef DOUG_LEA_MALLOC | |
164 | #undef REL_ALLOC | |
165 | #endif | |
bb15bd9a DL |
166 | |
167 | /* Tell that garbage collector that setjmp is known to save all | |
168 | registers relevant for conservative garbage collection in the | |
169 | jmp_buf. */ | |
e7b6b572 DL |
170 | /* Not all the architectures are tested, but there are Debian packages |
171 | for SCM and/or Guile on them, so the technique must work. See also | |
172 | comments in alloc.c concerning setjmp and gcc. Fixme: it's | |
173 | probably safe to make this conditional just on GCC, except for ia64 | |
174 | register window-flushing. */ | |
a8f77aaa GM |
175 | /* Don't use #cpu here since in newest development versions of GCC, |
176 | we must call cpp with -traditional, and that disables #cpu. */ | |
177 | ||
e7b6b572 DL |
178 | #if defined __i386__ || defined __sparc__ || defined __mc68000__ \ |
179 | || defined __alpha__ || defined __mips__ || defined __s390__ \ | |
e3177e43 | 180 | || defined __arm__ || defined __powerpc__ || defined __amd64__ \ |
00f37552 | 181 | || defined __ia64__ || defined __sh__ |
bb15bd9a | 182 | #define GC_SETJMP_WORKS 1 |
ecf4d726 | 183 | #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS |
72bba9f2 AS |
184 | #ifdef __mc68000__ |
185 | #define GC_LISP_OBJECT_ALIGNMENT 2 | |
186 | #endif | |
e3177e43 AS |
187 | #ifdef __ia64__ |
188 | #define GC_MARK_SECONDARY_STACK() \ | |
189 | do { \ | |
190 | extern void *__libc_ia64_register_backing_store_base; \ | |
191 | __builtin_ia64_flushrs (); \ | |
192 | mark_memory (__libc_ia64_register_backing_store_base, \ | |
fbb7c02f | 193 | __builtin_ia64_bsp (), 0); \ |
e3177e43 AS |
194 | } while (0) |
195 | #endif | |
bb15bd9a | 196 | #endif |
ab5796a9 MB |
197 | |
198 | /* arch-tag: 6244ea2a-abd0-44ec-abec-ff3dcc9afea9 | |
199 | (do not change this comment) */ |