1 /* System description header for FreeBSD systems.
2 This file describes the parameters that system description files
4 Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
5 2003, 2004, 2005, 2006, 2007, 2008
6 Free Software Foundation, Inc.
8 This file is part of GNU Emacs.
10 GNU Emacs is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3, or (at your option)
15 GNU Emacs is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with GNU Emacs; see the file COPYING. If not, write to
22 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
23 Boston, MA 02110-1301, USA. */
25 /* Get the correct __FreeBSD_version, even if this is before that was
27 #ifndef __FreeBSD_version
29 #define __FreeBSD_version 199401
30 #elif __FreeBSD__ == 1
31 #define __FreeBSD_version 199405
33 #include <osreldate.h>
35 #endif /* !defined __FreeBSD_version */
37 /* '__FreeBSD__' is defined by the preprocessor on FreeBSD-1.1 and up.
38 Earlier versions do not have shared libraries, so inhibit them.
39 You can inhibit them on newer systems if you wish
40 by defining NO_SHARED_LIBS. */
42 #define NO_SHARED_LIBS
46 #if 0 /* This much, alone, seemed sufficient as of 19.23.
47 But it seems better to be independent of netbsd.h. */
56 /* Get most of the stuff from bsd4.3 */
59 /* For mem-limits.h. */
62 /* These aren't needed, since we have getloadavg. */
66 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base)
69 #define LIBS_SYSTEM -lutil
70 #if __FreeBSD_version < 400000
71 #define LIBS_TERMCAP -ltermcap
74 #define LIBS_TERMCAP -lncurses
77 #define SYSV_SYSTEM_DIR
79 /* freebsd has POSIX-style pgrp behavior. */
81 #define GETPGRP_NO_ARG
85 #define LD_SWITCH_SYSTEM_1
86 #define START_FILES pre-crt0.o /usr/lib/crt1.o /usr/lib/crti.o /usr/lib/crtbegin.o
87 #define UNEXEC unexelf.o
88 #define LIB_STANDARD -lgcc -lc -lgcc /usr/lib/crtend.o /usr/lib/crtn.o
92 #else /* not __ELF__ */
94 #ifndef NO_SHARED_LIBS
95 #define LD_SWITCH_SYSTEM_1 -e start -dc -L/usr/local/lib
96 #define HAVE_TEXT_START /* No need to define `start_of_text'. */
97 #if __FreeBSD_version >= 300002
98 #define START_FILES pre-crt0.o /usr/lib/aout/crt0.o
99 #else /* __FreeBSD_version < 300002 */
100 #define START_FILES pre-crt0.o /usr/lib/crt0.o
101 #endif /* __FreeBSD_version < 300002 */
102 #define UNEXEC unexsunos4.o
103 #define RUN_TIME_REMAP
104 #define LIB_GCC -lgcc
107 #define N_PAGSIZ(x) __LDPGSZ
108 #define N_BSSADDR(x) (N_ALIGN(x, N_DATADDR(x)+x.a_data))
109 #define N_TRELOFF(x) N_RELOFF(x)
111 #else /* NO_SHARED_LIBS */
112 #ifdef __FreeBSD__ /* shared libs are available, but the user prefers
114 #define LD_SWITCH_SYSTEM_1 -Bstatic -L/usr/local/lib
115 #define A_TEXT_OFFSET(x) (sizeof (struct exec))
116 #define A_TEXT_SEEK(hdr) (N_TXTOFF(hdr) + A_TEXT_OFFSET(hdr))
117 #endif /* __FreeBSD__ */
118 #endif /* NO_SHARED_LIBS */
120 #endif /* not __ELF__ */
122 /* Let `ld' find image libs and similar things in /usr/local/lib. The
123 system compiler, GCC, has apparently been modified to not look
124 there, contrary to what a stock GCC would do. */
126 #define LD_SWITCH_SYSTEM LD_SWITCH_SYSTEM_1 -L/usr/local/lib
128 #define HAVE_WAIT_HEADER
129 #define HAVE_GETLOADAVG 1
131 #define HAVE_GETPAGESIZE /* configure now puts this in config.h */
135 #define DECLARE_GETPWUID_WITH_UID_T
137 /* freebsd uses OXTABS instead of the expected TAB3. */
138 #define TABDLY OXTABS
141 /* this silences a few compilation warnings */
144 #define BSD_SYSTEM 199103
145 #elif __FreeBSD__ == 2
146 #define BSD_SYSTEM 199306
147 #elif __FreeBSD__ >= 3
148 #define BSD_SYSTEM 199506
151 #if 0 /* Shouldn't be necessary and produces warnings with the
152 experimental Autoconf test. */
154 /* get this since it won't be included if WAITTYPE is defined */
156 #include <sys/wait.h>
158 #define WRETCODE(w) (_W_INT(w) >> 8)
161 /* Don't close pty in process.c to make it as controlling terminal.
162 It is already a controlling terminal of subprocess, because we did
164 #define DONT_REOPEN_PTY
166 /* CLASH_DETECTION is defined in bsd4-3.h.
167 In FreeBSD 2.1.5 (and other 2.1.x), this results useless symbolic links
168 remaining in /tmp or other directories with +t bit.
169 To avoid this problem, you could #undef it to use no file lock. */
170 /* #undef CLASH_DETECTION */
172 /* If the system's imake configuration file defines `NeedWidePrototypes'
173 as `NO', we must define NARROWPROTO manually. Such a define is
174 generated in the Makefile generated by `xmkmf'. If we don't
175 define NARROWPROTO, we will see the wrong function prototypes
176 for X functions taking float or double parameters. */
178 #define NARROWPROTO 1
180 /* The following is needed to make `configure' find Xpm, Xaw3d and
181 image include and library files if using /usr/bin/gcc. That
182 compiler seems to be modified to not find headers in
183 /usr/local/include or libs in /usr/local/lib by default. */
185 #define C_SWITCH_SYSTEM -I/usr/X11R6/include -I/usr/local/include -L/usr/local/lib
187 /* Circumvent a bug in FreeBSD. In the following sequence of
188 writes/reads on a PTY, read(2) returns bogus data:
191 write(2) 954 bytes, get EAGAIN
192 read(2) 1024 bytes in process_read_output
193 read(2) 11 bytes in process_read_output
195 That is, read(2) returns more bytes than have ever been written
196 successfully. The 1033 bytes read are the 1022 bytes written
197 successfully after processing (for example with CRs added if the
198 terminal is set up that way which it is here). The same bytes will
199 be seen again in a later read(2), without the CRs. */
201 #define BROKEN_PTY_READ_AFTER_EAGAIN 1
203 /* Tell that garbage collector that setjmp is known to save all
204 registers relevant for conservative garbage collection in the
207 #define GC_SETJMP_WORKS 1
209 /* Use the GC_MAKE_GCPROS_NOOPS (see lisp.h) method for marking the
212 #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
214 /* Define USE_MMAP_FOR_BUFFERS to let Emacs use mmap(2) to allocate
215 buffer text. This overrides REL_ALLOC. */
217 #define USE_MMAP_FOR_BUFFERS 1
219 /* Use sigprocmask(2) and friends instead of sigblock(2); the man page
220 of sigblock says it is obsolete. */
222 #define POSIX_SIGNALS 1
224 /* The `combreloc' setting became the default, and it seems to be
225 incompatible with unexec. Symptom is an immediate SEGV in
226 XtInitializeWidget when starting Emacs under X11. */
228 #if defined __FreeBSD_version && __FreeBSD_version >= 500042
229 #define LD_SWITCH_SYSTEM_TEMACS -znocombreloc
232 /* arch-tag: 426529ca-b7c4-448f-b10a-d4dcdc9c78eb
233 (do not change this comment) */