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
5 Free Software Foundation, Inc.
7 This file is part of GNU Emacs.
9 GNU Emacs is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2, or (at your option)
14 GNU Emacs is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GNU Emacs; see the file COPYING. If not, write to
21 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
24 /* Get the correct __FreeBSD_version, even if this is before that was
26 #ifndef __FreeBSD_version
28 #define __FreeBSD_version 199401
29 #elif __FreeBSD__ == 1
30 #define __FreeBSD_version 199405
32 #include <osreldate.h>
34 #endif /* !defined __FreeBSD_version */
36 /* '__FreeBSD__' is defined by the preprocessor on FreeBSD-1.1 and up.
37 Earlier versions do not have shared libraries, so inhibit them.
38 You can inhibit them on newer systems if you wish
39 by defining NO_SHARED_LIBS. */
41 #define NO_SHARED_LIBS
45 #if 0 /* This much, alone, seemed sufficient as of 19.23.
46 But it seems better to be independent of netbsd.h. */
55 /* Get most of the stuff from bsd4.3 */
58 /* For mem-limits.h. */
61 /* These aren't needed, since we have getloadavg. */
65 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base)
68 #define LIBS_SYSTEM -lutil
69 #if __FreeBSD_version < 400000
70 #define LIBS_TERMCAP -ltermcap
73 #define SYSV_SYSTEM_DIR
75 /* freebsd has POSIX-style pgrp behavior. */
77 #define GETPGRP_NO_ARG
81 #define LD_SWITCH_SYSTEM_1
82 #define START_FILES pre-crt0.o /usr/lib/crt1.o /usr/lib/crti.o /usr/lib/crtbegin.o
83 #define UNEXEC unexelf.o
84 #define LIB_STANDARD -lgcc -lc -lgcc /usr/lib/crtend.o /usr/lib/crtn.o
88 #else /* not __ELF__ */
90 #ifndef NO_SHARED_LIBS
91 #define LD_SWITCH_SYSTEM_1 -e start -dc -L/usr/local/lib
92 #define HAVE_TEXT_START /* No need to define `start_of_text'. */
93 #if __FreeBSD_version >= 300002
94 #define START_FILES pre-crt0.o /usr/lib/aout/crt0.o
95 #else /* __FreeBSD_version < 300002 */
96 #define START_FILES pre-crt0.o /usr/lib/crt0.o
97 #endif /* __FreeBSD_version < 300002 */
98 #define UNEXEC unexsunos4.o
99 #define RUN_TIME_REMAP
100 #define LIB_GCC -lgcc
103 #define N_PAGSIZ(x) __LDPGSZ
104 #define N_BSSADDR(x) (N_ALIGN(x, N_DATADDR(x)+x.a_data))
105 #define N_TRELOFF(x) N_RELOFF(x)
107 #else /* NO_SHARED_LIBS */
108 #ifdef __FreeBSD__ /* shared libs are available, but the user prefers
110 #define LD_SWITCH_SYSTEM_1 -Bstatic -L/usr/local/lib
111 #define A_TEXT_OFFSET(x) (sizeof (struct exec))
112 #define A_TEXT_SEEK(hdr) (N_TXTOFF(hdr) + A_TEXT_OFFSET(hdr))
113 #endif /* __FreeBSD__ */
114 #endif /* NO_SHARED_LIBS */
116 #endif /* not __ELF__ */
118 /* Let `ld' find image libs and similar things in /usr/local/lib. The
119 system compiler, GCC, has apparently been modified to not look
120 there, contrary to what a stock GCC would do. */
122 #define LD_SWITCH_SYSTEM LD_SWITCH_SYSTEM_1 -L/usr/local/lib
124 #define HAVE_WAIT_HEADER
125 #define HAVE_GETLOADAVG 1
127 #define HAVE_GETPAGESIZE /* configure now puts this in config.h */
131 #define DECLARE_GETPWUID_WITH_UID_T
133 /* freebsd uses OXTABS instead of the expected TAB3. */
134 #define TABDLY OXTABS
137 /* this silences a few compilation warnings */
140 #define BSD_SYSTEM 199103
141 #elif __FreeBSD__ == 2
142 #define BSD_SYSTEM 199306
143 #elif __FreeBSD__ >= 3
144 #define BSD_SYSTEM 199506
147 #if 0 /* Shouldn't be necessary and produces warnings with the
148 experimental Autoconf test. */
150 /* get this since it won't be included if WAITTYPE is defined */
152 #include <sys/wait.h>
154 #define WRETCODE(w) (_W_INT(w) >> 8)
157 /* Don't close pty in process.c to make it as controlling terminal.
158 It is already a controlling terminal of subprocess, because we did
160 #define DONT_REOPEN_PTY
162 /* CLASH_DETECTION is defined in bsd4-3.h.
163 In FreeBSD 2.1.5 (and other 2.1.x), this results useless symbolic links
164 remaining in /tmp or other directories with +t bit.
165 To avoid this problem, you could #undef it to use no file lock. */
166 /* #undef CLASH_DETECTION */
168 /* If the system's imake configuration file defines `NeedWidePrototypes'
169 as `NO', we must define NARROWPROTO manually. Such a define is
170 generated in the Makefile generated by `xmkmf'. If we don't
171 define NARROWPROTO, we will see the wrong function prototypes
172 for X functions taking float or double parameters. */
174 #define NARROWPROTO 1
176 /* The following is needed to make `configure' find Xpm, Xaw3d and
177 image include and library files if using /usr/bin/gcc. That
178 compiler seems to be modified to not find headers in
179 /usr/local/include or libs in /usr/local/lib by default. */
181 #define C_SWITCH_SYSTEM -I/usr/X11R6/include -I/usr/local/include -L/usr/local/lib
183 /* Circumvent a bug in FreeBSD. In the following sequence of
184 writes/reads on a PTY, read(2) returns bogus data:
187 write(2) 954 bytes, get EAGAIN
188 read(2) 1024 bytes in process_read_output
189 read(2) 11 bytes in process_read_output
191 That is, read(2) returns more bytes than have ever been written
192 successfully. The 1033 bytes read are the 1022 bytes written
193 successfully after processing (for example with CRs added if the
194 terminal is set up that way which it is here). The same bytes will
195 be seen again in a later read(2), without the CRs. */
197 #define BROKEN_PTY_READ_AFTER_EAGAIN 1
199 /* Tell that garbage collector that setjmp is known to save all
200 registers relevant for conservative garbage collection in the
203 #define GC_SETJMP_WORKS 1
205 /* Use the GC_MAKE_GCPROS_NOOPS (see lisp.h) method for marking the
208 #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
210 /* Define USE_MMAP_FOR_BUFFERS to let Emacs use mmap(2) to allocate
211 buffer text. This overrides REL_ALLOC. */
213 #define USE_MMAP_FOR_BUFFERS 1
215 /* Use sigprocmask(2) and friends instead of sigblock(2); the man page
216 of sigblock says it is obsolete. */
218 #define POSIX_SIGNALS 1