/* This file is the configuration file for Linux-based GNU systems
- Copyright (C) 1985, 86, 92, 94, 96, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1985, 1986, 1992, 1994, 1996, 1999, 2001, 2002, 2003, 2004,
+ 2005, 2006, 2007 Free Software Foundation, Inc.
This file is part of GNU Emacs.
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
/* This file was put together by Michael K. Johnson and Rik Faith. */
#define USG
/* #define BSD_SYSTEM */
#define LINUX
+#define GNU_LINUX
/* SYSTEM_TYPE should indicate the kind of system you are using.
It sets the Lisp variable system-type. */
#if LINUX_VERSION_CODE >= 0x20000
#define LINUX_MAP_SHARED_DOES_WORK
#endif /* LINUX_VERSION_CODE >= 0x20000 */
+#if LINUX_VERSION_CODE >= 0x20400
+#define LINUX_SIGNALS_VIA_CHARACTERS_DOES_WORK
+#endif /* LINUX_VERSION_CODE >= 0x20400 */
#endif /* HAVE_LINUX_VERSION_H */
#endif /* emacs */
#endif /* NOT_C_CODE */
-/* Letter to use in finding device name of first pty,
- if system supports pty's. 'p' means it is /dev/ptyp0 */
+#if defined HAVE_GRANTPT
+#define UNIX98_PTYS
-#define FIRST_PTY_LETTER 'p'
+/* Run only once. We need a `for'-loop because the code uses
+ `continue'. */
-#ifdef HAVE_DEV_PTMX
+#define PTY_ITERATION for (i = 0; i < 1; i++)
-/* This is the same definition as in usg5-4.h, but with sigblock/sigunblock
- rather than sighold/sigrelse, which appear to be BSD4.1 specific and won't
- work if POSIX_SIGNALS is defined. It may also be appropriate for SVR4.x
- (x<2) but I'm not sure. fnf@cygnus.com */
-/* This sets the name of the slave side of the PTY. On SysVr4,
- grantpt(3) forks a subprocess, so keep sigchld_handler() from
- intercepting that death. If any child but grantpt's should die
- within, it should be caught after sigrelse(2). */
+#ifdef HAVE_GETPT
+#define PTY_NAME_SPRINTF
+#define PTY_OPEN fd = getpt ()
+#else /* not HAVE_GETPT */
+#define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
+#endif /* not HAVE_GETPT */
+
+/* Note that grantpt and unlockpt may fork. We must block SIGCHLD to
+ prevent sigchld_handler from intercepting the child's death. */
+
+#define PTY_TTY_NAME_SPRINTF \
+ { \
+ char *ptyname; \
+ \
+ sigblock (sigmask (SIGCHLD)); \
+ if (grantpt (fd) == -1 || unlockpt (fd) == -1 \
+ || !(ptyname = ptsname(fd))) \
+ { \
+ sigunblock (sigmask (SIGCHLD)); \
+ close (fd); \
+ return -1; \
+ } \
+ strncpy (pty_name, ptyname, sizeof (pty_name)); \
+ pty_name[sizeof (pty_name) - 1] = 0; \
+ sigunblock (sigmask (SIGCHLD)); \
+ }
-#undef FIRST_PTY_LETTER
-#define FIRST_PTY_LETTER 'z'
+#else /* not HAVE_GRANTPT */
-/* This sets the name of the master side of the PTY. */
-#define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
+/* Letter to use in finding device name of first pty,
+ if system supports pty's. 'p' means it is /dev/ptyp0 */
-#undef PTY_TTY_NAME_SPRINTF
-#define PTY_TTY_NAME_SPRINTF \
- { \
- char *ptsname (), *ptyname; \
- \
- sigblock (sigmask (SIGCLD)); \
- if (grantpt (fd) == -1) \
- { close (fd); return -1; } \
- sigunblock (sigmask (SIGCLD)); \
- if (unlockpt (fd) == -1) \
- { close (fd); return -1; } \
- if (!(ptyname = ptsname (fd))) \
- { close (fd); return -1; } \
- strncpy (pty_name, ptyname, sizeof (pty_name)); \
- pty_name[sizeof (pty_name) - 1] = 0; \
- }
+#define FIRST_PTY_LETTER 'p'
-#endif /* HAVE_DEV_PTMX */
+#endif /* not HAVE_GRANDPT */
-/*
- * Define HAVE_TERMIOS if the system provides POSIX-style
- * functions and macros for terminal control.
- */
+/* Define HAVE_TERMIOS if the system provides POSIX-style
+ functions and macros for terminal control. */
#define HAVE_TERMIOS
-/*
- * Define HAVE_PTYS if the system supports pty devices.
- */
+/* Define HAVE_PTYS if the system supports pty devices. */
#define HAVE_PTYS
-/* Uncomment this later when other problems are dealt with -mkj */
-
#define HAVE_SOCKETS
/* Define this symbol if your system has the functions bcopy, etc. */
/* On GNU/Linux systems, both methods are used by various mail
programs. I assume that most people are using newer mailers that
have heard of flock. Change this if you need to. */
-
+/* Debian contains a patch which says: ``On Debian/GNU/Linux systems,
+ configure gets the right answers, and that means *NOT* using flock.
+ Using flock is guaranteed to be the wrong thing. See Debian Policy
+ for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
+ Debian maintainer hasn't provided a clean fix for Emacs.
+ movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
+ HAVE_MAILLOCK_H are defined, so the following appears to be the
+ correct logic. -- fx */
+/* We must check for HAVE_LIBLOCKFILE too, as movemail does.
+ liblockfile is a Free Software replacement for libmail, used on
+ Debian systems and elsewhere. -rfr */
+
+#if !((defined (HAVE_LIBMAIL) || defined (HAVE_LIBLOCKFILE)) && \
+ defined (HAVE_MAILLOCK_H))
#define MAIL_USE_FLOCK
+#endif
/* Define CLASH_DETECTION if you want lock files to be written
so that Emacs can tell instantly when you try to modify
#else
#define LD_SWITCH_SYSTEM LD_SWITCH_X_SITE_AUX
#endif /* __mips__ */
+
+/* Link temacs with -z nocombreloc so that unexec works right, whether or
+ not -z combreloc is the default. GNU ld ignores unknown -z KEYWORD
+ switches, so this also works with older versions that don't implement
+ -z combreloc. */
+#define LD_SWITCH_SYSTEM_TEMACS -z nocombreloc
#endif /* __ELF__ */
/* As of version 1.1.51, Linux did not actually implement SIGIO.
#define NO_SIOCTL_H /* don't have sioctl.h */
-#define HAVE_VFORK
-#define HAVE_SYS_SIGLIST
-#define HAVE_GETWD /* cure conflict with getcwd? */
#define HAVE_WAIT_HEADER
#define SYSV_SYSTEM_DIR /* use dirent.h */
#define C_DEBUG_SWITCH
#endif
-/* Let's try this out, just in case.
- Nah. Rik Faith <faith@cs.unc.edu> says it doesn't work well. */
-/* #define SIGNALS_VIA_CHARACTERS */
+/* 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works. */
+#ifdef LINUX_SIGNALS_VIA_CHARACTERS_DOES_WORK
+#define SIGNALS_VIA_CHARACTERS
+#endif
/* Rob Malouf <malouf@csli.stanford.edu> says:
SYSV IPC is standard a standard part of Linux since version 0.99pl10,
/* alane@wozzle.linet.org says that -lipc is not a separate library,
since libc-4.4.1. So -lipc was deleted. */
#define LIBS_SYSTEM
+/* _BSD_SOURCE is redundant, at least in glibc2, since we define
+ _GNU_SOURCE. Left in in case it's relevant to libc5 systems and
+ anyone's still using Emacs on those. --fx 2002-12-14 */
#define C_SWITCH_SYSTEM -D_BSD_SOURCE
#endif
actually set a process group. */
#define BSD_PGRPS
-#define setpgrp(pid,pgid) setpgid(pid,pgid)
#define NARROWPROTO 1
#ifdef DOUG_LEA_MALLOC
#undef REL_ALLOC
#endif
+
+/* Tell that garbage collector that setjmp is known to save all
+ registers relevant for conservative garbage collection in the
+ jmp_buf. */
+/* Not all the architectures are tested, but there are Debian packages
+ for SCM and/or Guile on them, so the technique must work. See also
+ comments in alloc.c concerning setjmp and gcc. Fixme: it's
+ probably safe to make this conditional just on GCC, except for ia64
+ register window-flushing. */
+/* Don't use #cpu here since in newest development versions of GCC,
+ we must call cpp with -traditional, and that disables #cpu. */
+
+#if defined __i386__ || defined __sparc__ || defined __mc68000__ \
+ || defined __alpha__ || defined __mips__ || defined __s390__ \
+ || defined __arm__ || defined __powerpc__ || defined __amd64__ \
+ || defined __ia64__
+#define GC_SETJMP_WORKS 1
+#define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
+#ifdef __mc68000__
+#define GC_LISP_OBJECT_ALIGNMENT 2
+#endif
+#ifdef __ia64__
+#define GC_MARK_SECONDARY_STACK() \
+ do { \
+ extern void *__libc_ia64_register_backing_store_base; \
+ __builtin_ia64_flushrs (); \
+ mark_memory (__libc_ia64_register_backing_store_base, \
+ __builtin_ia64_bsp (), 0); \
+ } while (0)
+#endif
+#endif
+
+/* arch-tag: 6244ea2a-abd0-44ec-abec-ff3dcc9afea9
+ (do not change this comment) */