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, 2009
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 of the License, or
13 (at your option) any later version.
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. If not, see <http://www.gnu.org/licenses/>. */
23 /* Get the correct __FreeBSD_version, even if this is before that was
25 #ifndef __FreeBSD_version
27 #define __FreeBSD_version 199401
28 #elif __FreeBSD__ == 1
29 #define __FreeBSD_version 199405
31 #include <osreldate.h>
33 #endif /* !defined __FreeBSD_version */
35 /* '__FreeBSD__' is defined by the preprocessor on FreeBSD-1.1 and up.
36 Earlier versions do not have shared libraries, so inhibit them.
37 You can inhibit them on newer systems if you wish
38 by defining NO_SHARED_LIBS. */
40 #define NO_SHARED_LIBS
43 /* Get most of the stuff from bsd-common */
44 #include "bsd-common.h"
46 /* For mem-limits.h. */
49 /* These aren't needed, since we have getloadavg. */
53 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base)
56 #define LIBS_SYSTEM -lutil
57 #if __FreeBSD_version < 400000
58 #define LIBS_TERMCAP -ltermcap
61 #define LIBS_TERMCAP -lncurses
64 #define SYSV_SYSTEM_DIR
66 /* freebsd has POSIX-style pgrp behavior. */
71 /* Let `ld' find image libs and similar things in /usr/local/lib. The
72 system compiler, GCC, has apparently been modified to not look
73 there, contrary to what a stock GCC would do. */
75 #define LD_SWITCH_SYSTEM -L/usr/local/lib
76 #define START_FILES pre-crt0.o /usr/lib/crt1.o /usr/lib/crti.o /usr/lib/crtbegin.o
77 #define UNEXEC unexelf.o
78 #define LIB_STANDARD -lgcc -lc -lgcc /usr/lib/crtend.o /usr/lib/crtn.o
82 #else /* not __ELF__ */
84 #ifndef NO_SHARED_LIBS
85 #define LD_SWITCH_SYSTEM -e start -dc -L/usr/local/lib
86 #define HAVE_TEXT_START /* No need to define `start_of_text'. */
87 #if __FreeBSD_version >= 300002
88 #define START_FILES pre-crt0.o /usr/lib/aout/crt0.o
89 #else /* __FreeBSD_version < 300002 */
90 #define START_FILES pre-crt0.o /usr/lib/crt0.o
91 #endif /* __FreeBSD_version < 300002 */
92 #define UNEXEC unexsunos4.o
93 #define RUN_TIME_REMAP
96 #else /* NO_SHARED_LIBS */
97 #ifdef __FreeBSD__ /* shared libs are available, but the user prefers
99 #define LD_SWITCH_SYSTEM -Bstatic -L/usr/local/lib
100 #endif /* __FreeBSD__ */
101 #endif /* NO_SHARED_LIBS */
103 #endif /* not __ELF__ */
105 #define HAVE_GETLOADAVG 1
108 #define DECLARE_GETPWUID_WITH_UID_T
110 /* freebsd uses OXTABS instead of the expected TAB3. */
111 #define TABDLY OXTABS
114 /* this silences a few compilation warnings */
117 #define BSD_SYSTEM 199103
118 #elif __FreeBSD__ == 2
119 #define BSD_SYSTEM 199306
120 #elif __FreeBSD__ >= 3
121 #define BSD_SYSTEM 199506
124 /* Don't close pty in process.c to make it as controlling terminal.
125 It is already a controlling terminal of subprocess, because we did
127 #define DONT_REOPEN_PTY
129 /* If the system's imake configuration file defines `NeedWidePrototypes'
130 as `NO', we must define NARROWPROTO manually. Such a define is
131 generated in the Makefile generated by `xmkmf'. If we don't
132 define NARROWPROTO, we will see the wrong function prototypes
133 for X functions taking float or double parameters. */
135 #define NARROWPROTO 1
137 /* The following is needed to make `configure' find Xpm, Xaw3d and
138 image include and library files if using /usr/bin/gcc. That
139 compiler seems to be modified to not find headers in
140 /usr/local/include or libs in /usr/local/lib by default. */
142 #define C_SWITCH_SYSTEM -I/usr/X11R6/include -I/usr/local/include -L/usr/local/lib
144 /* Circumvent a bug in FreeBSD. In the following sequence of
145 writes/reads on a PTY, read(2) returns bogus data:
148 write(2) 954 bytes, get EAGAIN
149 read(2) 1024 bytes in process_read_output
150 read(2) 11 bytes in process_read_output
152 That is, read(2) returns more bytes than have ever been written
153 successfully. The 1033 bytes read are the 1022 bytes written
154 successfully after processing (for example with CRs added if the
155 terminal is set up that way which it is here). The same bytes will
156 be seen again in a later read(2), without the CRs. */
158 #define BROKEN_PTY_READ_AFTER_EAGAIN 1
160 /* Tell that garbage collector that setjmp is known to save all
161 registers relevant for conservative garbage collection in the
164 #define GC_SETJMP_WORKS 1
166 /* Use the GC_MAKE_GCPROS_NOOPS (see lisp.h) method for marking the
169 #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
171 /* Define USE_MMAP_FOR_BUFFERS to let Emacs use mmap(2) to allocate
172 buffer text. This overrides REL_ALLOC. */
174 #define USE_MMAP_FOR_BUFFERS 1
176 /* Use sigprocmask(2) and friends instead of sigblock(2); the man page
177 of sigblock says it is obsolete. */
179 #define POSIX_SIGNALS 1
181 /* The `combreloc' setting became the default, and it seems to be
182 incompatible with unexec. Symptom is an immediate SEGV in
183 XtInitializeWidget when starting Emacs under X11. */
185 #if defined __FreeBSD_version && __FreeBSD_version >= 500042
186 #define LD_SWITCH_SYSTEM_TEMACS -znocombreloc
189 /* arch-tag: 426529ca-b7c4-448f-b10a-d4dcdc9c78eb
190 (do not change this comment) */