[bpt/emacs.git] / src / s / gnu-linux.h

/* This file is the configuration file for Linux-based GNU systems
   Copyright (C) 1985, 1986, 1992, 1994, 1996, 1999, 2001, 2002, 2003, 2004,
                 2005, 2006, 2007, 2008, 2009, 2010  Free Software Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */

/* This file was put together by Michael K. Johnson and Rik Faith.  */


/*
 *	Define symbols to identify the version of Unix this is.
 *	Define all the symbols that apply correctly.
 */

#define USG
#define GNU_LINUX

/* SYSTEM_TYPE should indicate the kind of system you are using.
 It sets the Lisp variable system-type.  */

#define SYSTEM_TYPE "gnu/linux"		/* All the best software is free. */

#ifndef NOT_C_CODE
#ifdef emacs
#ifdef HAVE_LINUX_VERSION_H
#include <linux/version.h>

#if LINUX_VERSION_CODE >= 0x20400
/* 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.  */
#define SIGNALS_VIA_CHARACTERS
#endif /* LINUX_VERSION_CODE >= 0x20400 */
#endif /* HAVE_LINUX_VERSION_H */
#endif /* emacs */
#endif /* NOT_C_CODE */

#if defined HAVE_GRANTPT
#define UNIX98_PTYS

/* Run only once.  We need a `for'-loop because the code uses
   `continue'.  */

#define PTY_ITERATION	for (i = 0; i < 1; i++)

#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));			\
  }

#else /* not HAVE_GRANTPT */

/* Letter to use in finding device name of first pty,
   if system supports pty's.  'p' means it is /dev/ptyp0  */

#define FIRST_PTY_LETTER 'p'

#endif  /* not HAVE_GRANTPT */

/*  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

#define HAVE_SOCKETS

/* Define this symbol if your system has the functions bcopy, etc. */

#define BSTRING

/* This is used in list_system_processes.  */
#define HAVE_PROCFS 1

/* define MAIL_USE_FLOCK if the mailer uses flock
   to interlock access to /usr/spool/mail/$USER.
   The alternative is that a lock file named
   /usr/spool/mail/$USER.lock.  */

/* 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
   a file that someone else has modified in his Emacs.  */

#define CLASH_DETECTION

/* Here, on a separate page, add any special hacks needed
   to make Emacs work on this system.  For example,
   you might define certain system call names that don't
   exist on your system, or that do different things on
   your system and must be used only through an encapsulation
   (Which you should place, by convention, in sysdep.c).  */
\f
/* This is needed for dispnew.c:update_frame */

#ifdef emacs
#include <stdio.h>  /* Get the definition of _IO_STDIO_H.  */
#if defined(_IO_STDIO_H) || defined(_STDIO_USES_IOSTREAM)
/* new C libio names */
#define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
  ((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)
#elif defined (__UCLIBC__)
/* using the uClibc library */
#define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
  ((FILE)->__bufpos - (FILE)->__bufstart)
#else /* !_IO_STDIO_H && ! __UCLIBC__ */
/* old C++ iostream names */
#define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
  ((FILE)->_pptr - (FILE)->_pbase)
#endif /* !_IO_STDIO_H && ! __UCLIBC__ */
#endif /* emacs */

/* Ask GCC where to find libgcc.a.  */
#define LIB_GCC `$(CC) $(C_SWITCH_X_SITE) -print-libgcc-file-name`

#define START_FILES pre-crt0.o /usr/lib/crt1.o /usr/lib/crti.o

/* Here is how to find X Windows.  LD_SWITCH_X_SITE_AUX gives an -R option
   says where to find X windows at run time.  */

#ifdef __mips__
#define LD_SWITCH_SYSTEM -G 0 LD_SWITCH_X_SITE_AUX
#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

#ifdef emacs
#define INTERRUPT_INPUT
#endif

#define SYSV_SYSTEM_DIR       /* use dirent.h */

#define POSIX                 /* affects getpagesize.h and systty.h */
#define POSIX_SIGNALS

/* Best not to include -lg, unless it is last on the command line */
#define LIBS_DEBUG
#undef LIB_GCC
#define LIB_GCC
#define LIB_STANDARD -lgcc -lc -lgcc /usr/lib/crtn.o

/* Don't use -g in test compiles in configure.
   This is so we will use the same shared libs for that linking
   that are used when linking temacs.  */
#ifdef THIS_IS_CONFIGURE
#define C_DEBUG_SWITCH
#endif

/* 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

/* Paul Abrahams <abrahams@equinox.shaysnet.com> says this is needed.  */
#define LIB_MOTIF -lXm -lXpm

#ifdef HAVE_LIBNCURSES
#define TERMINFO
#define LIBS_TERMCAP -lncurses
#endif

#define UNEXEC unexelf.o

/* This is to work around mysterious gcc failures in some system versions.
   It is unlikely that Emacs changes will work around this problem;
   therefore, this should remain permanently.  */
#ifndef HAVE_XRMSETDATABASE
#define HAVE_XRMSETDATABASE
#endif

/* Use BSD process groups, but use setpgid() instead of setpgrp() to
   actually set a process group. */
/* Interesting: only GNU/Linux defines this,  but the BSDs do not... */
#define BSD_PGRPS

#define NARROWPROTO 1

/* Use mmap directly for allocating larger buffers.  */
#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__ || defined __sh__
#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) */
Commit	Line	Data
3a707ba5	1	/* This file is the configuration file for Linux-based GNU systems
429ab54e	2	Copyright (C) 1985, 1986, 1992, 1994, 1996, 1999, 2001, 2002, 2003, 2004,
114f9c96	3	2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
566e3587 JB	4
	5	This file is part of GNU Emacs.
	6
4b158629	7	GNU Emacs is free software: you can redistribute it and/or modify
566e3587	8	it under the terms of the GNU General Public License as published by
4b158629 GM	9	the Free Software Foundation, either version 3 of the License, or
4b158629 GM	10	(at your option) any later version.
566e3587 JB	11
	12	GNU Emacs is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
4b158629	18	along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
566e3587	19
b49ef455 JB	20	/* This file was put together by Michael K. Johnson and Rik Faith. */
b49ef455 JB	21
566e3587 JB	22
	23	/*
	24	* Define symbols to identify the version of Unix this is.
	25	* Define all the symbols that apply correctly.
	26	*/
	27
566e3587	28	#define USG
8db5530a	29	#define GNU_LINUX
566e3587 JB	30
	31	/* SYSTEM_TYPE should indicate the kind of system you are using.
	32	It sets the Lisp variable system-type. */
	33
3a707ba5	34	#define SYSTEM_TYPE "gnu/linux" /* All the best software is free. */
566e3587	35
65953053 RS	36	#ifndef NOT_C_CODE
65953053 RS	37	#ifdef emacs
b764619d	38	#ifdef HAVE_LINUX_VERSION_H
65953053	39	#include <linux/version.h>
566e3587	40
85a71b37	41	#if LINUX_VERSION_CODE >= 0x20400
c5e7567d DN	42	/* 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works. */
c5e7567d DN	43	#define SIGNALS_VIA_CHARACTERS
85a71b37	44	#endif /* LINUX_VERSION_CODE >= 0x20400 */
b764619d	45	#endif /* HAVE_LINUX_VERSION_H */
aa7fcbb0 RS	46	#endif /* emacs */
aa7fcbb0 RS	47	#endif /* NOT_C_CODE */
566e3587	48
71125fb8 GM	49	#if defined HAVE_GRANTPT
71125fb8 GM	50	#define UNIX98_PTYS
566e3587	51
71125fb8 GM	52	/* Run only once. We need a `for'-loop because the code uses
71125fb8 GM	53	`continue'. */
566e3587	54
71125fb8	55	#define PTY_ITERATION for (i = 0; i < 1; i++)
fdc5e0fc	56
71125fb8 GM	57	#ifdef HAVE_GETPT
	58	#define PTY_NAME_SPRINTF
	59	#define PTY_OPEN fd = getpt ()
	60	#else /* not HAVE_GETPT */
	61	#define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
	62	#endif /* not HAVE_GETPT */
	63
	64	/* Note that grantpt and unlockpt may fork. We must block SIGCHLD to
	65	prevent sigchld_handler from intercepting the child's death. */
	66
	67	#define PTY_TTY_NAME_SPRINTF \
	68	{ \
	69	char *ptyname; \
	70	\
	71	sigblock (sigmask (SIGCHLD)); \
	72	if (grantpt (fd) == -1 \|\| unlockpt (fd) == -1 \
	73	\|\| !(ptyname = ptsname(fd))) \
	74	{ \
	75	sigunblock (sigmask (SIGCHLD)); \
	76	close (fd); \
	77	return -1; \
	78	} \
	79	strncpy (pty_name, ptyname, sizeof (pty_name)); \
	80	pty_name[sizeof (pty_name) - 1] = 0; \
	81	sigunblock (sigmask (SIGCHLD)); \
	82	}
fdc5e0fc	83
dacbb818	84	#else /* not HAVE_GRANTPT */
fdc5e0fc	85
71125fb8 GM	86	/* Letter to use in finding device name of first pty,
71125fb8 GM	87	if system supports pty's. 'p' means it is /dev/ptyp0 */
fdc5e0fc	88
71125fb8	89	#define FIRST_PTY_LETTER 'p'
fdc5e0fc	90
132d0475	91	#endif /* not HAVE_GRANTPT */
fdc5e0fc	92
71125fb8 GM	93	/* Define HAVE_TERMIOS if the system provides POSIX-style
71125fb8 GM	94	functions and macros for terminal control. */
566e3587 JB	95
	96	#define HAVE_TERMIOS
	97
71125fb8	98	/* Define HAVE_PTYS if the system supports pty devices. */
566e3587 JB	99
	100	#define HAVE_PTYS
	101
dad29761	102	#define HAVE_SOCKETS
566e3587 JB	103
	104	/* Define this symbol if your system has the functions bcopy, etc. */
	105
	106	#define BSTRING
	107
06e111a6	108	/* This is used in list_system_processes. */
40c5931c	109	#define HAVE_PROCFS 1
40c5931c	110
566e3587 JB	111	/* define MAIL_USE_FLOCK if the mailer uses flock
	112	to interlock access to /usr/spool/mail/$USER.
	113	The alternative is that a lock file named
	114	/usr/spool/mail/$USER.lock. */
	115
3a707ba5 RS	116	/* On GNU/Linux systems, both methods are used by various mail
	117	programs. I assume that most people are using newer mailers that
	118	have heard of flock. Change this if you need to. */
828a3791 DL	119	/* Debian contains a patch which says: ``On Debian/GNU/Linux systems,
	120	configure gets the right answers, and that means NOT using flock.
	121	Using flock is guaranteed to be the wrong thing. See Debian Policy
	122	for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
	123	Debian maintainer hasn't provided a clean fix for Emacs.
	124	movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
	125	HAVE_MAILLOCK_H are defined, so the following appears to be the
	126	correct logic. -- fx */
47a0ee40 RF	127	/* We must check for HAVE_LIBLOCKFILE too, as movemail does.
	128	liblockfile is a Free Software replacement for libmail, used on
	129	Debian systems and elsewhere. -rfr */
828a3791	130
47a0ee40 RF	131	#if !((defined (HAVE_LIBMAIL) \|\| defined (HAVE_LIBLOCKFILE)) && \
47a0ee40 RF	132	defined (HAVE_MAILLOCK_H))
566e3587	133	#define MAIL_USE_FLOCK
828a3791	134	#endif
566e3587 JB	135
	136	/* Define CLASH_DETECTION if you want lock files to be written
	137	so that Emacs can tell instantly when you try to modify
	138	a file that someone else has modified in his Emacs. */
	139
b2e209ba	140	#define CLASH_DETECTION
566e3587 JB	141
	142	/* Here, on a separate page, add any special hacks needed
	143	to make Emacs work on this system. For example,
	144	you might define certain system call names that don't
	145	exist on your system, or that do different things on
	146	your system and must be used only through an encapsulation
	147	(Which you should place, by convention, in sysdep.c). */
	148	\f
fde448f4	149	/* This is needed for dispnew.c:update_frame */
566e3587	150
5e5623c2	151	#ifdef emacs
a9c82aaf	152	#include <stdio.h> /* Get the definition of _IO_STDIO_H. */
4dee6d0d	153	#if defined(_IO_STDIO_H) \|\| defined(_STDIO_USES_IOSTREAM)
5e5623c2	154	/* new C libio names */
c2c3f859	155	#define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
5e5623c2	156	((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)
65f451d0 DN	157	#elif defined (__UCLIBC__)
	158	/* using the uClibc library */
	159	#define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
	160	((FILE)->__bufpos - (FILE)->__bufstart)
	161	#else /* !_IO_STDIO_H && ! __UCLIBC__ */
5e5623c2	162	/* old C++ iostream names */
c2c3f859	163	#define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
5e5623c2	164	((FILE)->_pptr - (FILE)->_pbase)
65f451d0	165	#endif /* !_IO_STDIO_H && ! __UCLIBC__ */
5e5623c2	166	#endif /* emacs */
566e3587	167
5101db23	168	/* Ask GCC where to find libgcc.a. */
08ddf771	169	#define LIB_GCC `$(CC) $(C_SWITCH_X_SITE) -print-libgcc-file-name`
5101db23	170
01b79236	171	#define START_FILES pre-crt0.o /usr/lib/crt1.o /usr/lib/crti.o
566e3587	172
588a9a3e RS	173	/* Here is how to find X Windows. LD_SWITCH_X_SITE_AUX gives an -R option
588a9a3e RS	174	says where to find X windows at run time. */
a28c4a8e	175
f649aa04 RS	176	#ifdef __mips__
	177	#define LD_SWITCH_SYSTEM -G 0 LD_SWITCH_X_SITE_AUX
	178	#else
588a9a3e	179	#define LD_SWITCH_SYSTEM LD_SWITCH_X_SITE_AUX
f649aa04	180	#endif /* __mips__ */
854ad2d5 AS	181
854ad2d5 AS	182	/* Link temacs with -z nocombreloc so that unexec works right, whether or
75bec752	183	not -z combreloc is the default. GNU ld ignores unknown -z KEYWORD
854ad2d5 AS	184	switches, so this also works with older versions that don't implement
	185	-z combreloc. */
	186	#define LD_SWITCH_SYSTEM_TEMACS -z nocombreloc
588a9a3e	187
566e3587	188	#ifdef emacs
65953053	189	#define INTERRUPT_INPUT
65953053	190	#endif
566e3587	191
566e3587	192	#define SYSV_SYSTEM_DIR /* use dirent.h */
566e3587	193
1abbab7a	194	#define POSIX /* affects getpagesize.h and systty.h */
566e3587 JB	195	#define POSIX_SIGNALS
566e3587 JB	196
566e3587 JB	197	/* Best not to include -lg, unless it is last on the command line */
566e3587 JB	198	#define LIBS_DEBUG
08ddf771	199	#undef LIB_GCC
4dee6d0d	200	#define LIB_GCC
01b79236	201	#define LIB_STANDARD -lgcc -lc -lgcc /usr/lib/crtn.o
3233bbe1	202
6f10bc9d RS	203	/* Don't use -g in test compiles in configure.
	204	This is so we will use the same shared libs for that linking
	205	that are used when linking temacs. */
	206	#ifdef THIS_IS_CONFIGURE
	207	#define C_DEBUG_SWITCH
	208	#endif
	209
edb0cf8d RS	210	/* alane@wozzle.linet.org says that -lipc is not a separate library,
edb0cf8d RS	211	since libc-4.4.1. So -lipc was deleted. */
1077bc04	212	#define LIBS_SYSTEM
e7b6b572 DL	213	/* _BSD_SOURCE is redundant, at least in glibc2, since we define
	214	_GNU_SOURCE. Left in in case it's relevant to libc5 systems and
	215	anyone's still using Emacs on those. --fx 2002-12-14 */
f83a1ae3	216	#define C_SWITCH_SYSTEM -D_BSD_SOURCE
cafdb68a	217
c7ce28ce RS	218	/* Paul Abrahams <abrahams@equinox.shaysnet.com> says this is needed. */
	219	#define LIB_MOTIF -lXm -lXpm
	220
be1d1a1a	221	#ifdef HAVE_LIBNCURSES
65953053	222	#define TERMINFO
565b8b0d	223	#define LIBS_TERMCAP -lncurses
65953053 RS	224	#endif
65953053 RS	225
4dee6d0d	226	#define UNEXEC unexelf.o
8427dec9	227
639f52d8 RS	228	/* This is to work around mysterious gcc failures in some system versions.
	229	It is unlikely that Emacs changes will work around this problem;
	230	therefore, this should remain permanently. */
e3b89505 RS	231	#ifndef HAVE_XRMSETDATABASE
	232	#define HAVE_XRMSETDATABASE
	233	#endif
e2000885	234
3743c30c RS	235	/* Use BSD process groups, but use setpgid() instead of setpgrp() to
3743c30c RS	236	actually set a process group. */
340074e9	237	/* Interesting: only GNU/Linux defines this, but the BSDs do not... */
3743c30c	238	#define BSD_PGRPS
e0a6ee5e	239
2327e4a0 GM	240	#define NARROWPROTO 1
2327e4a0 GM	241
e0a6ee5e RS	242	/* Use mmap directly for allocating larger buffers. */
	243	#ifdef DOUG_LEA_MALLOC
	244	#undef REL_ALLOC
	245	#endif
bb15bd9a DL	246
	247	/* Tell that garbage collector that setjmp is known to save all
	248	registers relevant for conservative garbage collection in the
	249	jmp_buf. */
e7b6b572 DL	250	/* Not all the architectures are tested, but there are Debian packages
	251	for SCM and/or Guile on them, so the technique must work. See also
	252	comments in alloc.c concerning setjmp and gcc. Fixme: it's
	253	probably safe to make this conditional just on GCC, except for ia64
	254	register window-flushing. */
a8f77aaa GM	255	/* Don't use #cpu here since in newest development versions of GCC,
	256	we must call cpp with -traditional, and that disables #cpu. */
	257
e7b6b572 DL	258	#if defined __i386__ \|\| defined __sparc__ \|\| defined __mc68000__ \
e7b6b572 DL	259	\|\| defined __alpha__ \|\| defined __mips__ \|\| defined __s390__ \
e3177e43	260	\|\| defined __arm__ \|\| defined __powerpc__ \|\| defined __amd64__ \
00f37552	261	\|\| defined __ia64__ \|\| defined __sh__
bb15bd9a	262	#define GC_SETJMP_WORKS 1
ecf4d726	263	#define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
72bba9f2 AS	264	#ifdef __mc68000__
	265	#define GC_LISP_OBJECT_ALIGNMENT 2
	266	#endif
e3177e43 AS	267	#ifdef __ia64__
	268	#define GC_MARK_SECONDARY_STACK() \
	269	do { \
	270	extern void *__libc_ia64_register_backing_store_base; \
	271	__builtin_ia64_flushrs (); \
	272	mark_memory (__libc_ia64_register_backing_store_base, \
fbb7c02f	273	__builtin_ia64_bsp (), 0); \
e3177e43 AS	274	} while (0)
e3177e43 AS	275	#endif
bb15bd9a	276	#endif
ab5796a9 MB	277
	278	/* arch-tag: 6244ea2a-abd0-44ec-abec-ff3dcc9afea9
	279	(do not change this comment) */