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source: trunk/acinclude.m4

Last change on this file was 583, checked in by katerina, 39 hours ago
Fix for ticket #471 (autoreconf throws warnings/errors).
File size: 64.2 KB

Rev	Line
[583]	1
	2	dnl This program is distributed in the hope that it will be useful,
	3	dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
	4	dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
	5	dnl PARTICULAR PURPOSE.
	6
	7	# serial 1
	8
	9
	10	AC_DEFUN([sh_run_prog],
	11	[if test "$cross_compiling" = "yes"; then
	12	AC_MSG_ERROR([Can not probe non-portable values when cross compiling])
	13	fi
	14	cat > conftest.$ac_ext <<EOF
	15	[#]line __oline__ "configure"
	16	#include "confdefs.h"
	17	ifelse(AC_LANG, CPLUSPLUS, [#ifdef __cplusplus
	18	extern "C" void exit(int);
	19	#endif
	20	])
	21	[$1]
	22	EOF
	23	if AC_TRY_EVAL(ac_link) && test -s conftest && $2=`(./conftest 2>/dev/null)`
	24	then
	25	dnl Don't remove the temporary files here, so they can be examined.
	26	ifelse([$3], , :, [$3])
	27	else
	28	echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
	29	cat conftest.$ac_ext >&AS_MESSAGE_LOG_FD
	30	ifelse([$4], , , [ rm -fr conftest*
	31	$4
	32	])
	33	fi
	34	rm -fr conftest* ])
	35
	36	dnl fs type number of the proc filing system
	37	AC_DEFUN([sh_procfs_id],
	38	[AC_MSG_CHECKING([f_type of /proc])
	39	AC_CACHE_VAL([sh_cv_proc_fstype],
	40	[sh_run_prog(
	41	changequote(<<, >>)dnl
	42	<<#include <stdio.h>
	43	#ifdef HAVE_STDLIB_H
	44	#include <stdlib.h>
	45	#endif /* HAVE_STDLIB_H */
	46	#ifdef HAVE_UNISTD_H
	47	#include <unistd.h>
	48	#endif /* HAVE_UNISTD_H */
	49	#ifdef HAVE_SYS_VFS_H
	50	#include <sys/vfs.h>
	51	#endif
	52	#ifndef Q
	53	#define __Q(x) #x
	54	#define Q(x) __Q(x)
	55	#endif
	56	int main(void)
	57	{
	58	struct statfs fsbuf;
	59	long ft;
	60	if (statfs("/", &fsbuf)!=0)
	61	exit(1);
	62	ft=fsbuf.f_type;
	63	if (statfs("/proc/1", &fsbuf)!=0)
	64	exit(1);
	65	if (ft!=fsbuf.f_type)
	66	printf("0x%08lx", fsbuf.f_type);
	67	else
	68	puts("statfs useless");
	69	exit(0);
	70	} >>
	71	changequote([, ]), sh_cv_proc_fstype,, sh_cv_proc_fstype="a fatal error occured")])
	72	AC_MSG_RESULT($sh_cv_proc_fstype)
	73	if test "${sh_cv_proc_fstype}" = "a fatal error occured"; then
	74	$1=$2
	75	$4
	76	else if test "${sh_cv_proc_fstype}" = "statfs useless"; then
	77	$1=$2
	78	$4
	79	else
	80	$1=$sh_cv_proc_fstype
	81	$3
	82	fi; fi ])
	83
	84	# Check whether mlock is broken (hpux 10.20 raises a SIGBUS if mlock
	85	# is not called from uid 0 (not tested whether uid 0 works)
	86	dnl AC_CHECK_MLOCK
	87	dnl
	88	define([AC_CHECK_MLOCK],
	89	[ AC_CHECK_FUNCS(mlock)
	90	if test "$ac_cv_func_mlock" = "yes"; then
	91	AC_MSG_CHECKING(whether mlock is broken)
	92	AC_CACHE_VAL(ac_cv_have_broken_mlock,
	93	AC_RUN_IFELSE([AC_LANG_SOURCE([[
	94	#include <stdlib.h>
	95	#include <unistd.h>
	96	#include <errno.h>
	97	#include <sys/mman.h>
	98	#include <sys/types.h>
	99	#include <fcntl.h>
	100
	101	int main()
	102	{
	103	char *pool;
	104	int err;
	105	long int pgsize = getpagesize();
	106
	107	pool = malloc( 4096 + pgsize );
	108	if( !pool )
	109	return 2;
	110	pool += (pgsize - ((long int)pool % pgsize));
	111
	112	err = mlock( pool, 4096 );
	113	if( !err \|\| errno == EPERM )
	114	return 0; /* okay */
	115
	116	return 1; /* hmmm */
	117	}
	118
	119	]])],[ac_cv_have_broken_mlock="no"],[ac_cv_have_broken_mlock="yes"],[ac_cv_have_broken_mlock="assume-no"
	120	])
	121	)
	122	if test "$ac_cv_have_broken_mlock" = "yes"; then
	123	AC_DEFINE([HAVE_BROKEN_MLOCK], [1], [mlock broken])
	124	AC_MSG_RESULT(yes)
	125	else
	126	if test "$ac_cv_have_broken_mlock" = "no"; then
	127	AC_MSG_RESULT(no)
	128	else
	129	AC_MSG_RESULT(assuming no)
	130	fi
	131	fi
	132	fi
	133	])
	134
	135	dnl @synopsis AC_FUNC_VSNPRINTF
	136	dnl
	137	dnl Check whether there is a reasonably sane vsnprintf() function installed.
	138	dnl "Reasonably sane" in this context means never clobbering memory beyond
	139	dnl the buffer supplied, and having a sensible return value. It is
	140	dnl explicitly allowed not to NUL-terminate the return value, however.
	141	dnl
	142	dnl @version $Id: ac_func_vsnprintf.m4,v 1.1 2001/07/26 02:00:21 guidod Exp $
	143	dnl @author Gaute Strokkenes <gs234@cam.ac.uk>
	144	dnl
	145	AC_DEFUN([SL_CHECK_VSNPRINTF],
	146	[AC_CACHE_CHECK(for working vsnprintf,
	147	ac_cv_func_vsnprintf,
	148	[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
	149	#include <stdarg.h>
	150
	151	int
	152	doit(char * s, ...)
	153	{
	154	char buffer[32];
	155	va_list args;
	156	int r;
	157
	158	buffer[5] = 'X';
	159
	160	va_start(args, s);
	161	r = vsnprintf(buffer, 5, s, args);
	162	va_end(args);
	163
	164	/* -1 is pre-C99, 7 is C99. R.W. 17.01.2003 disallow -1 */
	165
	166	if (r != 7)
	167	exit(1);
	168
	169	/* We deliberately do not care if the result is NUL-terminated or
	170	not, since this is easy to work around like this. */
	171
	172	buffer[4] = 0;
	173
	174	/* Simple sanity check. */
	175
	176	if (strcmp(buffer, "1234"))
	177	exit(1);
	178
	179	if (buffer[5] != 'X')
	180	exit(1);
	181
	182	exit(0);
	183	}
	184
	185	int
	186	main(void)
	187	{
	188	doit("1234567");
	189	exit(1);
	190	}]])],[ac_cv_func_vsnprintf=yes],[ac_cv_func_vsnprintf=no],[ac_cv_func_vsnprintf=no])])
	191	dnl Note that the default is to be pessimistic in the case
	192	dnl of cross compilation.
	193	dnl If you know that the target has a sensible vsnprintf(),
	194	dnl you can get around this
	195	dnl by setting ac_func_vsnprintf to yes, as described in the Autoconf manual.
	196	if test $ac_cv_func_vsnprintf = yes; then
	197	:
	198	else
	199	AC_DEFINE([HAVE_BROKEN_VSNPRINTF], [1],
	200	[Define if you have a broken version of the `vsnprintf' function.])
	201	fi
	202	])# AC_FUNC_VSNPRINTF
	203
	204	dnl SH_CHECK_TYPEDEF(TYPE, HAVE_NAME)
	205	dnl Check whether a typedef exists and create a #define $2 if it exists
	206	dnl
	207	AC_DEFUN([SH_CHECK_TYPEDEF],
	208	[ AC_MSG_CHECKING(for $1 typedef)
	209	sh_cv_typedef_foo=`echo sh_cv_typedef_$1 \| sed -e 's% %_%g'`
	210	AC_CACHE_VAL( $sh_cv_typedef_foo,
	211	[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
	212	#include <stdlib.h>
	213	#include <sys/types.h>
	214	#ifdef HAVE_STDINT_H
	215	#include <stdint.h>
	216	#endif
	217	#ifdef HAVE_INTTYPES_H
	218	#include <inttypes.h>
	219	#endif]], [[
	220	#undef $1
	221	int a = sizeof($1);
	222	]])],[sh_cv_typedef=yes],[sh_cv_typedef=no ])])
	223	AC_MSG_RESULT($sh_cv_typedef)
	224	if test "$sh_cv_typedef" = yes; then
	225	AC_DEFINE([$2], [1], [Define if type is defined in stdint.h or inttypes.h])
	226	sh_$2=yes
	227	else
	228	sh_$2=no
	229	fi
	230	])
	231
	232
	233
	234	dnl **********************
	235	dnl * va_copy checks *
	236	dnl **********************
	237	AC_DEFUN([SL_CHECK_VA_COPY],
	238	[AC_MSG_CHECKING(for va_copy())
	239	AC_CACHE_VAL(sh_cv_va_copy,[
	240	AC_RUN_IFELSE([AC_LANG_SOURCE([[
	241	#include <stdarg.h>
	242	void f (int i, ...) {
	243	va_list args1, args2;
	244	va_start (args1, i);
	245	va_copy (args2, args1);
	246	if (va_arg (args2, int) != 42)
	247	exit (1);
	248	if (va_arg (args1, int) != 42)
	249	exit (1);
	250	va_end (args1); va_end (args2);
	251	}
	252	int main() {
	253	f (0, 42);
	254	return 0;
	255	}]])],[sh_cv_va_copy=yes
	256	],[sh_cv_va_copy=no
	257	],[sh_cv_va_copy=no])
	258	])
	259	AC_MSG_RESULT($sh_cv_va_copy)
	260	AC_MSG_CHECKING(for __va_copy())
	261	AC_CACHE_VAL(sh_cv___va_copy,[
	262	AC_RUN_IFELSE([AC_LANG_SOURCE([[
	263	#include <stdarg.h>
	264	void f (int i, ...) {
	265	va_list args1, args2;
	266	va_start (args1, i);
	267	__va_copy (args2, args1);
	268	if (va_arg (args2, int) != 42)
	269	exit (1);
	270	if (va_arg (args1, int) != 42)
	271	exit (1);
	272	va_end (args1); va_end (args2);
	273	}
	274	int main() {
	275	f (0, 42);
	276	return 0;
	277	}]])],[sh_cv___va_copy=yes
	278	],[sh_cv___va_copy=no
	279	],[sh_cv___va_copy=no])
	280	])
	281	AC_MSG_RESULT($sh_cv___va_copy)
	282	AC_MSG_CHECKING(whether va_lists can be copied by value)
	283	AC_CACHE_VAL(sh_cv_va_val_copy,[
	284	AC_RUN_IFELSE([AC_LANG_SOURCE([[
	285	#include <stdarg.h>
	286	void f (int i, ...) {
	287	va_list args1, args2;
	288	va_start (args1, i);
	289	args2 = args1;
	290	if (va_arg (args2, int) != 42)
	291	exit (1);
	292	if (va_arg (args1, int) != 42)
	293	exit (1);
	294	va_end (args1); va_end (args2);
	295	}
	296	int main() {
	297	f (0, 42);
	298	return 0;
	299	}]])],[sh_cv_va_val_copy=yes
	300	],[sh_cv_va_val_copy=no
	301	],[sh_cv_va_val_copy=no])
	302	])
	303	if test "x$sh_cv_va_copy" = "xyes"; then
	304	AC_DEFINE([VA_COPY], [va_copy], [va_copy type])
	305	else if test "x$sh_cv___va_copy" = "xyes"; then
	306	AC_DEFINE([VA_COPY], [__va_copy], [va_copy type])
	307	fi
	308	fi
	309	if test "x$sh_cv_va_val_copy" = "xno"; then
	310	AC_DEFINE([VA_COPY_AS_ARRAY], [1], [va_copy type])
	311	fi
	312	AC_MSG_RESULT($sh_cv_va_val_copy)
	313	])
	314
	315
	316	dnl SH_INIT_PARSE_ARGS()
	317	m4_define([SH_INIT_PARSE_ARGS],
	318	[
	319	m4_divert_push([PARSE_ARGS])dnl
	320
	321	as_cr_letters='abcdefghijklmnopqrstuvwxyz'
	322	as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
	323	as_cr_Letters=$as_cr_letters$as_cr_LETTERS
	324	as_cr_digits='0123456789'
	325	as_cr_alnum=$as_cr_Letters$as_cr_digits
	326
	327	# Sed expression to map a string onto a valid CPP name.
	328	as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[[^_$as_cr_alnum]]%_%g"
	329
	330	as_tr_sh="eval sed 'y%*+%pp%;s%[[^_$as_cr_alnum]]%_%g'"
	331	# IFS
	332	# We need space, tab and new line, in precisely that order.
	333	as_nl='
	334	'
	335	IFS=" $as_nl"
	336
	337	# CDPATH.
	338	$as_unset CDPATH \|\| test "${CDPATH+set}" != set \|\| { CDPATH=$PATH_SEPARATOR; export CDPATH; }
	339
	340
	341	# Initialize some variables set by options.
	342	ac_init_help=
	343	ac_init_version=false
	344	# The variables have the same names as the options, with
	345	# dashes changed to underlines.
	346	cache_file=/dev/null
	347	AC_SUBST(exec_prefix, NONE)dnl
	348	no_create=
	349	no_recursion=
	350	AC_SUBST(prefix, NONE)dnl
	351	program_prefix=NONE
	352	program_suffix=NONE
	353	AC_SUBST(program_transform_name, [s,x,x,])dnl
	354	silent=
	355	site=
	356	srcdir=
	357	verbose=
	358	x_includes=NONE
	359	x_libraries=NONE
	360	DESTDIR=
	361	SH_ENABLE_OPTS="selinux posix-acl asm ssp db-reload xml-log message-queue login-watch process-check port-check mounts-check logfile-monitor userfiles debug ptrace static network udp nocl stealth micro-stealth install-name identity khide suidcheck base largefile mail external-scripts encrypt srp dnmalloc ipv6 shellexpand suid"
	362	SH_WITH_OPTS="prelude libprelude-prefix database libwrap cflags libs console altconsole timeserver alttimeserver rnd egd-socket port logserver altlogserver signify pubkey-checksum gpg keyid checksum fp recipient sender trusted tmp-dir config-file log-file pid-file state-dir data-file html-file"
	363
	364	# Installation directory options.
	365	# These are left unexpanded so users can "make install exec_prefix=/foo"
	366	# and all the variables that are supposed to be based on exec_prefix
	367	# by default will actually change.
	368	dnl Use braces instead of parens because sh, perl, etc. also accept them.
	369	sbindir='${exec_prefix}/sbin'
	370	sysconfdir='${prefix}/etc'
	371	localstatedir='${prefix}/var'
	372	mandir='${prefix}/share/man'
	373
	374	AC_SUBST([sbindir], ['${exec_prefix}/sbin'])dnl
	375	AC_SUBST([sysconfdir], ['${prefix}/etc'])dnl
	376	AC_SUBST([localstatedir], ['${prefix}/var'])dnl
	377	AC_SUBST([mandir], ['${prefix}/share/man'])dnl
	378
	379
	380	# Initialize some other variables.
	381	subdirs=
	382	MFLAGS= MAKEFLAGS=
	383	SHELL=${CONFIG_SHELL-/bin/sh}
	384	# Maximum number of lines to put in a shell here document.
	385	ac_max_here_lines=12
	386
	387	ac_prev=
	388	for ac_option
	389	do
	390
	391	# If the previous option needs an argument, assign it.
	392	if test -n "$ac_prev"; then
	393	eval "$ac_prev=\$ac_option"
	394	ac_prev=
	395	continue
	396	fi
	397
	398	case "$ac_option" in
	399	changequote(, )dnl
	400	=) ac_optarg=`echo "$ac_option" \| sed 's/[-_a-zA-Z0-9]*=//'` ;;
	401	changequote([, ])dnl
	402	*) ac_optarg= ;;
	403	esac
	404
	405	# Accept the important Cygnus configure options, so we can diagnose typos.
	406
	407	case "$ac_option" in
	408
	409	-build \| --build \| --buil \| --bui \| --bu)
	410	ac_prev=build_alias ;;
	411	-build=* \| --build=* \| --buil=* \| --bui=* \| --bu=*)
	412	build_alias="$ac_optarg" ;;
	413
	414	-cache-file \| --cache-file \| --cache-fil \| --cache-fi \
	415	\| --cache-f \| --cache- \| --cache \| --cach \| --cac \| --ca \| --c)
	416	ac_prev=cache_file ;;
	417	-cache-file=* \| --cache-file=* \| --cache-fil=* \| --cache-fi=* \
	418	\| --cache-f=* \| --cache-=* \| --cache=* \| --cach=* \| --cac=* \| --ca=* \| --c=*)
	419	cache_file="$ac_optarg" ;;
	420
	421	--config-cache \| -C)
	422	cache_file=config.cache ;;
	423
	424	-disable-* \| --disable-*)
	425	ac_feature=`expr "x$ac_option" : 'x-disable-$.$'`
	426	# Reject names that are not valid shell variable names.
	427	expr "x$ac_feature" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
	428	AC_MSG_ERROR([invalid feature name: $ac_feature])
	429	ac_feature=`echo $ac_feature \| sed 's/-/_/g'`
	430	ac_enable_check_opt=no
	431	for f in ${SH_ENABLE_OPTS}
	432	do
	433	f=`echo $f \| sed 's/-/_/g'`
	434	if test x${f} = x"${ac_feature}"
	435	then
	436	ac_enable_check_opt=yes
	437	fi
	438	done
	439	if test x${ac_enable_check_opt} = xno
	440	then
	441	AC_MSG_ERROR([unrecognized option: $ac_option
	442	Try `$[0] --help' for more information.])
	443	fi
	444	eval "enable_$ac_feature=no" ;;
	445
	446	-enable-* \| --enable-*)
	447	ac_feature=`expr "x$ac_option" : 'x-enable-$[[^=]]$'`
	448	# Reject names that are not valid shell variable names.
	449	expr "x$ac_feature" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
	450	AC_MSG_ERROR([invalid feature name: $ac_feature])
	451	ac_feature=`echo $ac_feature \| sed 's/-/_/g'`
	452	case $ac_option in
	453	=) ac_optarg=`echo "$ac_optarg" \| sed "s/'/'\\\\\\\\''/g"`;;
	454	*) ac_optarg=yes ;;
	455	esac
	456	ac_enable_check_opt=no
	457	for f in ${SH_ENABLE_OPTS}
	458	do
	459	f=`echo $f \| sed 's/-/_/g'`
	460	if test x${f} = x"${ac_feature}"
	461	then
	462	ac_enable_check_opt=yes
	463	fi
	464	done
	465	if test x${ac_enable_check_opt} = xno
	466	then
	467	AC_MSG_ERROR([unrecognized option: $ac_option
	468	Try `$[0] --help' for more information.])
	469	fi
	470	eval "enable_$ac_feature='$ac_optarg'" ;;
	471
	472	-exec-prefix \| --exec_prefix \| --exec-prefix \| --exec-prefi \
	473	\| --exec-pref \| --exec-pre \| --exec-pr \| --exec-p \| --exec- \
	474	\| --exec \| --exe \| --ex)
	475	ac_prev=exec_prefix
	476	ac_exec_prefix_set="yes"
	477	;;
	478	-exec-prefix=* \| --exec_prefix=* \| --exec-prefix=* \| --exec-prefi=* \
	479	\| --exec-pref=* \| --exec-pre=* \| --exec-pr=* \| --exec-p=* \| --exec-=* \
	480	\| --exec=* \| --exe=* \| --ex=*)
	481	exec_prefix="$ac_optarg"
	482	ac_exec_prefix_set="yes"
	483	;;
	484
	485	-gas \| --gas \| --ga \| --g)
	486	# Obsolete; use --with-gas.
	487	with_gas=yes ;;
	488
	489	-help \| --help \| --hel \| --he \| -h)
	490	ac_init_help=long ;;
	491	-help=r* \| --help=r* \| --hel=r* \| --he=r* \| -hr*)
	492	ac_init_help=recursive ;;
	493	-help=s* \| --help=s* \| --hel=s* \| --he=s* \| -hs*)
	494	ac_init_help=short ;;
	495
	496	-host \| --host \| --hos \| --ho)
	497	ac_prev=host_alias ;;
	498	-host=* \| --host=* \| --hos=* \| --ho=*)
	499	host_alias="$ac_optarg" ;;
	500
	501	-localstatedir \| --localstatedir \| --localstatedi \| --localstated \
	502	\| --localstate \| --localstat \| --localsta \| --localst \
	503	\| --locals \| --local \| --loca \| --loc \| --lo)
	504	ac_prev=localstatedir
	505	ac_localstatedir_set="yes"
	506	;;
	507	-localstatedir=* \| --localstatedir=* \| --localstatedi=* \| --localstated=* \
	508	\| --localstate=* \| --localstat=* \| --localsta=* \| --localst=* \
	509	\| --locals=* \| --local=* \| --loca=* \| --loc=* \| --lo=*)
	510	localstatedir="$ac_optarg"
	511	ac_localstatedir_set="yes"
	512	;;
	513
	514	-mandir \| --mandir \| --mandi \| --mand \| --man \| --ma \| --m)
	515	ac_prev=mandir
	516	ac_mandir_set="yes"
	517	;;
	518	-mandir=* \| --mandir=* \| --mandi=* \| --mand=* \| --man=* \| --ma=* \| --m=*)
	519	mandir="$ac_optarg"
	520	ac_mandir_set="yes"
	521	;;
	522
	523	-nfp \| --nfp \| --nf)
	524	# Obsolete; use --without-fp.
	525	with_fp=no ;;
	526
	527	-no-create \| --no-create \| --no-creat \| --no-crea \| --no-cre \
	528	\| --no-cr \| --no-c \| -n)
	529	no_create=yes ;;
	530
	531	-no-recursion \| --no-recursion \| --no-recursio \| --no-recursi \
	532	\| --no-recurs \| --no-recur \| --no-recu \| --no-rec \| --no-re \| --no-r)
	533	no_recursion=yes ;;
	534
	535	-prefix \| --prefix \| --prefi \| --pref \| --pre \| --pr \| --p)
	536	ac_prev=prefix
	537	ac_prefix_set="yes"
	538	;;
	539	-prefix=* \| --prefix=* \| --prefi=* \| --pref=* \| --pre=* \| --pr=* \| --p=*)
	540	prefix="$ac_optarg"
	541	ac_prefix_set="yes"
	542	;;
	543
	544	-q \| -quiet \| --quiet \| --quie \| --qui \| --qu \| --q \
	545	\| -silent \| --silent \| --silen \| --sile \| --sil)
	546	silent=yes ;;
	547
	548	-sbindir \| --sbindir \| --sbindi \| --sbind \| --sbin \| --sbi \| --sb)
	549	ac_prev=sbindir
	550	ac_sbindir_set="yes"
	551	;;
	552	-sbindir=* \| --sbindir=* \| --sbindi=* \| --sbind=* \| --sbin=* \
	553	\| --sbi=* \| --sb=*)
	554	sbindir="$ac_optarg"
	555	ac_sbindir_set="yes"
	556	;;
	557
	558	-bindir \| --bindir \| --bindi \| --bind \| --bin \| --bi \| --b)
	559	echo "WARNING: bindir will be ignored, use sbindir"
	560	;;
	561	-bindir=* \| --bindir=* \| --bindi=* \| --bind=* \| --bin=* \
	562	\| --bi=* \| --b=*)
	563	echo "WARNING: bindir will be ignored, use sbindir"
	564	;;
	565
	566	-datadir \| --datadir)
	567	echo "WARNING: datadir will be ignored"
	568	;;
	569	-datadir=* \| --datadir=*)
	570	echo "WARNING: datadir will be ignored"
	571	;;
	572
	573	-includedir \| --includedir)
	574	echo "WARNING: includedir will be ignored"
	575	;;
	576	-includedir=* \| --includedir=*)
	577	echo "WARNING: includedir will be ignored"
	578	;;
	579
	580	-infodir \| --infodir)
	581	echo "WARNING: infodir will be ignored"
	582	;;
	583	-infodir=* \| --infodir=*)
	584	echo "WARNING: infodir will be ignored"
	585	;;
	586
	587	-libdir \| --libdir)
	588	echo "WARNING: libdir will be ignored"
	589	;;
	590	-libdir=* \| --libdir=*)
	591	echo "WARNING: libdir will be ignored"
	592	;;
	593
	594	-libexecdir \| --libexecdir)
	595	echo "WARNING: libexecdir will be ignored"
	596	;;
	597	-libexecdir=* \| --libexecdir=*)
	598	echo "WARNING: libexecdir will be ignored"
	599	;;
	600
	601	-sharedstatedir \| --sharedstatedir)
	602	echo "WARNING: sharedstatedir will be ignored"
	603	;;
	604	-sharedstatedir=* \| --sharedstatedir=*)
	605	echo "WARNING: sharedstatedir will be ignored"
	606	;;
	607
	608	-site \| --site \| --sit)
	609	ac_prev=site ;;
	610	-site=* \| --site=* \| --sit=*)
	611	site="$ac_optarg" ;;
	612
	613	-srcdir \| --srcdir \| --srcdi \| --srcd \| --src \| --sr)
	614	ac_prev=srcdir ;;
	615	-srcdir=* \| --srcdir=* \| --srcdi=* \| --srcd=* \| --src=* \| --sr=*)
	616	srcdir="$ac_optarg" ;;
	617
	618	-sysconfdir \| --sysconfdir \| --sysconfdi \| --sysconfd \| --sysconf \
	619	\| --syscon \| --sysco \| --sysc \| --sys \| --sy)
	620	ac_prev=sysconfdir
	621	ac_sysconfdir_set="yes"
	622	;;
	623	-sysconfdir=* \| --sysconfdir=* \| --sysconfdi=* \| --sysconfd=* \| --sysconf=* \
	624	\| --syscon=* \| --sysco=* \| --sysc=* \| --sys=* \| --sy=*)
	625	sysconfdir="$ac_optarg"
	626	ac_sysconfdir_set="yes"
	627	;;
	628
	629	-target \| --target \| --targe \| --targ \| --tar \| --ta \| --t)
	630	ac_prev=target_alias ;;
	631	-target=* \| --target=* \| --targe=* \| --targ=* \| --tar=* \| --ta=* \| --t=*)
	632	target_alias="$ac_optarg" ;;
	633
	634	-v \| -verbose \| --verbose \| --verbos \| --verbo \| --verb)
	635	verbose=yes ;;
	636
	637	-version \| --version \| --versio \| --versi \| --vers)
	638	ac_init_version=: ;;
	639
	640
	641	-with-* \| --with-*)
	642	ac_package=`expr "x$ac_option" : 'x-with-$[[^=]]$'`
	643	# Reject names that are not valid shell variable names.
	644	expr "x$ac_package" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
	645	AC_MSG_ERROR([invalid package name: $ac_package])
	646	ac_package=`echo $ac_package\| sed 's/-/_/g'`
	647	case $ac_option in
	648	=) ac_optarg=`echo "$ac_optarg" \| sed "s/'/'\\\\\\\\''/g"`;;
	649	*) ac_optarg=yes ;;
	650	esac
	651	ac_with_check_opt=no
	652	for f in ${SH_WITH_OPTS}
	653	do
	654	f=`echo $f \| sed 's/-/_/g'`
	655	if test x${f} = x"${ac_package}"
	656	then
	657	ac_with_check_opt=yes
	658	fi
	659	done
	660	if test x${ac_with_check_opt} = xno
	661	then
	662	AC_MSG_ERROR([unrecognized option: $ac_option
	663	Try `$[0] --help' for more information.])
	664	fi
	665	eval "with_$ac_package='$ac_optarg'" ;;
	666
	667	-without-* \| --without-*)
	668	ac_package=`expr "x$ac_option" : 'x-without-$.$'`
	669	# Reject names that are not valid shell variable names.
	670	expr "x$ac_package" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
	671	AC_MSG_ERROR([invalid package name: $ac_package])
	672	ac_package=`echo $ac_package \| sed 's/-/_/g'`
	673	ac_with_check_opt=no
	674	for f in ${SH_WITH_OPTS}
	675	do
	676	f=`echo $f \| sed 's/-/_/g'`
	677	if test x${f} = x"${ac_package}"
	678	then
	679	ac_with_check_opt=yes
	680	fi
	681	done
	682	if test x${ac_with_check_opt} = xno
	683	then
	684	AC_MSG_ERROR([unrecognized option: $ac_option
	685	Try `$[0] --help' for more information.])
	686	fi
	687	eval "with_$ac_package=no" ;;
	688
	689
	690	-*) AC_MSG_ERROR([unrecognized option: $ac_option
	691	Try `$[0] --help' for more information.])
	692	;;
	693
	694	=)
	695	ac_envvar=`expr "x$ac_option" : 'x$[[^=]]*$='`
	696	# Reject names that are not valid shell variable names.
	697	expr "x$ac_envvar" : "[.*[^_$as_cr_alnum]]" >/dev/null &&
	698	AC_MSG_ERROR([invalid variable name: $ac_envvar])
	699	ac_optarg=`echo "$ac_optarg" \| sed "s/'/'\\\\\\\\''/g"`
	700	eval "$ac_envvar='$ac_optarg'"
	701	export $ac_envvar ;;
	702
	703	*)
	704	# FIXME: should be removed in autoconf 3.0.
	705	AC_MSG_WARN([you should use --build, --host, --target])
	706	expr "x$ac_option" : "[.*[^-._$as_cr_alnum]]" >/dev/null &&
	707	AC_MSG_WARN([invalid host type: $ac_option])
	708	: ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
	709	;;
	710
	711
	712	esac
	713	done
	714
	715	if test -n "$ac_prev"; then
	716	AC_MSG_ERROR(missing argument to --`echo $ac_prev \| sed 's/_/-/g'`)
	717	fi
	718
	719	# Be sure to have absolute paths.
	720	for ac_var in prefix exec_prefix
	721	do
	722	eval ac_val=$`echo $ac_var`
	723	case $ac_val in
	724	[[\\/$]]* \| ?:[[\\/]]* \| NONE \| '' \| OPT \| USR ) ;;
	725	*) AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val]);;
	726	esac
	727	done
	728
	729	# Be sure to have absolute paths.
	730	for ac_var in sbindir sysconfdir localstatedir mandir
	731	do
	732	eval ac_val=$`echo $ac_var`
	733	case $ac_val in
	734	[[\\/$]]* \| ?:[[\\/]]* ) ;;
	735	*) AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val]);;
	736	esac
	737	done
	738
	739	# There might be people who depend on the old broken behavior: `$host'
	740	# used to hold the argument of --host etc.
	741	# FIXME: To remove some day.
	742	build=$build_alias
	743	host=$host_alias
	744	target=$target_alias
	745
	746	# FIXME: To remove some day.
	747	if test "x$host_alias" != x; then
	748	if test "x$build_alias" = x; then
	749	cross_compiling=maybe
	750	AC_MSG_WARN([If you wanted to set the --build type, don't use --host.
	751	If a cross compiler is detected then cross compile mode will be used.])
	752	elif test "x$build_alias" != "x$host_alias"; then
	753	cross_compiling=yes
	754	fi
	755	fi
	756
	757	ac_tool_prefix=
	758	test -n "$host_alias" && ac_tool_prefix=$host_alias-
	759
	760	test "$silent" = yes && exec AS_MESSAGE_FD>/dev/null
	761
	762	m4_divert_pop([PARSE_ARGS])dnl
	763	])# SH_INIT_PARSE_ARGS
	764
	765	m4_define([SH_INIT_HELP],
	766	[m4_divert_push([HELP_BEGIN])dnl
	767
	768	#
	769	# Report the --help message.
	770	#
	771	if test "$ac_init_help" = "long"; then
	772	# Omit some internal or obsolete options to make the list less imposing.
	773	# This message is too long to be a string in the A/UX 3.1 sh.
	774	cat <<_ACEOF
	775	\`configure' configures m4_ifset([AC_PACKAGE_STRING],
	776	[AC_PACKAGE_STRING],
	777	[this package]) to adapt to many kinds of systems.
	778
	779	Usage: $[0] [[OPTION]]... [[VAR=VALUE]]...
	780
	781	[To assign environment variables (e.g., CC, CFLAGS...), specify them as
	782	VAR=VALUE. See below for descriptions of some of the useful variables.
	783
	784	Defaults for the options are specified in brackets.
	785
	786	Configuration:
	787	-h, --help display this help and exit
	788	--help=short display options specific to this package
	789	--help=recursive display the short help of all the included packages
	790	-V, --version display version information and exit
	791	-q, --quiet, --silent do not print \`checking...' messages
	792	--cache-file=FILE cache test results in FILE [disabled]
	793	-C, --config-cache alias for \`--cache-file=config.cache'
	794	-n, --no-create do not create output files
	795	--srcdir=DIR find the sources in DIR [configure dir or \`..']
	796
	797	_ACEOF
	798
	799	cat <<_ACEOF
	800	Installation directories:
	801	--prefix=PREFIX install architecture-independent files in PREFIX
	802	[$ac_default_prefix]
	803	--exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
	804	[PREFIX]
	805
	806	By default, \`make install' will install binaries in \`/usr/local/sbin',
	807	the config file in \`/etc', manpage in \`/usr/local/share/man', and state
	808	data in \`/var/lib/INSTALL_NAME' (FSH layout). You can specify other
	809	FSH compliant layouts with \`--prefix=OPT' or \`--prefix=USR', or you
	810	can specify a directory with \`--prefix=DIR' to install in \`DIR/sbin',
	811	\`DIR/etc', etc.
	812
	813	For better control, use the options below.
	814
	815	Fine tuning of the installation directories:
	816	--sbindir=DIR system admin executables [EPREFIX/sbin]
	817	--sysconfdir=DIR read-only single-machine data [PREFIX/etc]
	818	--localstatedir=DIR modifiable single-machine data [PREFIX/var]
	819	--mandir=DIR man documentation [PREFIX/man]
	820
	821	For even finer tuning, paths can be specified for individual files (see below)
	822
	823	_ACEOF
	824
	825	cat <<\_ACEOF]
	826	m4_divert_pop([HELP_BEGIN])dnl
	827	dnl The order of the diversions here is
	828	dnl - HELP_BEGIN
	829	dnl which may be prolongated by extra generic options such as with X or
	830	dnl AC_ARG_PROGRAM. Displayed only in long --help.
	831	dnl
	832	dnl - HELP_CANON
	833	dnl Support for cross compilation (--build, --host and --target).
	834	dnl Display only in long --help.
	835	dnl
	836	dnl - HELP_ENABLE
	837	dnl which starts with the trailer of the HELP_BEGIN, HELP_CANON section,
	838	dnl then implements the header of the non generic options.
	839	dnl
	840	dnl - HELP_WITH
	841	dnl
	842	dnl - HELP_VAR
	843	dnl
	844	dnl - HELP_VAR_END
	845	dnl
	846	dnl - HELP_END
	847	dnl initialized below, in which we dump the trailer (handling of the
	848	dnl recursion for instance).
	849	m4_divert_push([HELP_ENABLE])dnl
	850	_ACEOF
	851	fi
	852
	853	if test -n "$ac_init_help"; then
	854	m4_ifset([AC_PACKAGE_STRING],
	855	[ case $ac_init_help in
	856	short \| recursive ) echo "Configuration of AC_PACKAGE_STRING:";;
	857	esac])
	858	cat <<\_ACEOF
	859	m4_divert_pop([HELP_ENABLE])dnl
	860	m4_divert_push([HELP_END])dnl
	861	m4_ifset([AC_PACKAGE_BUGREPORT], [
	862	Report bugs to <AC_PACKAGE_BUGREPORT>.])
	863	_ACEOF
	864	fi
	865
	866	if test "$ac_init_help" = "recursive"; then
	867	# If there are subdirs, report their specific --help.
	868	ac_popdir=`pwd`
	869	for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
	870	test -d $ac_dir \|\| continue
	871	_AC_SRCPATHS(["$ac_dir"])
	872	cd $ac_dir
	873	# Check for guested configure; otherwise get Cygnus style configure.
	874	if test -f $ac_srcdir/configure.gnu; then
	875	echo
	876	$SHELL $ac_srcdir/configure.gnu --help=recursive
	877	elif test -f $ac_srcdir/configure; then
	878	echo
	879	$SHELL $ac_srcdir/configure --help=recursive
	880	elif test -f $ac_srcdir/configure.ac \|\|
	881	test -f $ac_srcdir/configure.in; then
	882	echo
	883	$ac_configure --help
	884	else
	885	AC_MSG_WARN([no configuration information is in $ac_dir])
	886	fi
	887	cd $ac_popdir
	888	done
	889	fi
	890
	891	test -n "$ac_init_help" && exit 0
	892	m4_divert_pop([HELP_END])dnl
	893	])# SH_INIT_HELP
	894
	895
	896
	897
	898
	899
	900
	901
	902	# Check whether sa_sigaction works.
	903	# Rainer Wichmann <support@la-samhna.de>, 2003.
	904	#
	905	# This file can be copied and used freely without restrictions. It can
	906	# be used in projects which are not available under the GNU Public License.
	907
	908	AC_DEFUN([AM_SA_SIGACTION_WORKS],
	909	[
	910	am_cv_val_SA_SIGACTION=no
	911	AC_CHECK_HEADER(signal.h,
	912	[
	913	AM_SI_USER
	914	AM_SA_SIGINFO
	915	if test $am_cv_val_SI_USER = yes && test $am_cv_val_SA_SIGINFO = yes
	916	then
	917	AC_RUN_IFELSE([AC_LANG_SOURCE([[
	918	#include <signal.h>
	919	#include <setjmp.h>
	920	#include <stdio.h>
	921	#include <stdlib.h>
	922
	923	volatile int xnum = 0;
	924	volatile int xcode = 0;
	925	jmp_buf Buf;
	926	int xsig = SIGSEGV;
	927
	928	void sighandler (int xsignam, siginfo_t * xsiginfo, void * xsigadd)
	929	{
	930	static sigset_t x;
	931
	932	if (xsiginfo == NULL)
	933	exit(__LINE__);
	934	if (xsiginfo->si_signo != xsignam)
	935	exit(__LINE__);
	936	++xnum;
	937	xcode = xsiginfo->si_code;
	938	sigemptyset (&x);
	939	sigprocmask(SIG_SETMASK, &x, NULL);
	940	longjmp ( Buf, 1);
	941	}
	942
	943	int main ()
	944	{
	945	struct sigaction newact;
	946
	947	newact.sa_sigaction = sighandler;
	948	sigemptyset (&newact.sa_mask);
	949	newact.sa_flags = SA_SIGINFO;
	950	if (0 != sigaction (xsig, &newact, NULL))
	951	exit (__LINE__);
	952	if(setjmp ( Buf)) {
	953	if (xnum > 1)
	954	goto Third;
	955	goto Second;
	956	}
	957	memcpy((void *) 0x0, "test", 5);
	958	Second:
	959	if (xcode == SI_USER)
	960	exit (__LINE__);
	961	raise(xsig);
	962	Third:
	963	if (xcode != SI_USER)
	964	exit (__LINE__);
	965	if (xnum != 2)
	966	exit (__LINE__);
	967	return (0);
	968	}]])],[am_cv_val_SA_SIGACTION=yes],[am_cv_val_SA_SIGACTION=no],[am_cv_val_SA_SIGACTION=no])
	969	fi
	970	])
	971	AC_MSG_CHECKING([whether sa_sigaction is supported])
	972	if test $am_cv_val_SA_SIGACTION = yes
	973	then
	974	AC_MSG_RESULT(yes)
	975	AC_DEFINE([SA_SIGACTION_WORKS], [1], [Define if sa_sigaction works])
	976	else
	977	AC_MSG_RESULT(no)
	978	fi
	979	])
	980
	981	# Check whether SI_USER is available in <signal.h>.
	982	# Rainer Wichmann <support@la-samhna.de>, 2003.
	983	#
	984	# This file can be copied and used freely without restrictions. It can
	985	# be used in projects which are not available under the GNU Public License.
	986
	987
	988	AC_DEFUN([AM_SI_USER],
	989	[if test $ac_cv_header_signal_h = yes; then
	990	AC_CACHE_CHECK([for SI_USER in signal.h], am_cv_val_SI_USER,
	991	[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]], [[return SI_USER]])],[am_cv_val_SI_USER=yes],[am_cv_val_SI_USER=no])])
	992	if test $am_cv_val_SI_USER = yes; then
	993	AC_DEFINE([HAVE_SI_USER], [1], [Define if you have SI_USER])
	994	fi
	995	fi])
	996
	997	# Check whether SA_SIGINFO is available in <signal.h>.
	998	# Rainer Wichmann <support@la-samhna.de>, 2003.
	999	#
	1000	# This file can be copied and used freely without restrictions. It can
	1001	# be used in projects which are not available under the GNU Public License.
	1002
	1003
	1004	AC_DEFUN([AM_SA_SIGINFO],
	1005	[if test $ac_cv_header_signal_h = yes; then
	1006	AC_CACHE_CHECK([for SA_SIGINFO in signal.h], am_cv_val_SA_SIGINFO,
	1007	[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]], [[return SA_SIGINFO]])],[am_cv_val_SA_SIGINFO=yes],[am_cv_val_SA_SIGINFO=no])])
	1008	if test $am_cv_val_SA_SIGINFO = yes; then
	1009	AC_DEFINE([HAVE_SA_SIGINFO], [1], [Define if you have SA_SIGINFO])
	1010	fi
	1011	fi])
	1012
	1013	dnl
	1014	dnl Useful macros for autoconf to check for ssp-patched gcc
	1015	dnl 1.0 - September 2003 - Tiago Sousa <mirage@kaotik.org>
	1016	dnl 1.1 - August 2006 - Ted Percival <ted@midg3t.net>
	1017	dnl * Stricter language checking (C or C++)
	1018	dnl * Adds GCC_STACK_PROTECT_LIB to add -lssp to LDFLAGS as necessary
	1019	dnl * Caches all results
	1020	dnl * Uses macros to ensure correct ouput in quiet/silent mode
	1021	dnl 1.2 - April 2007 - Ted Percival <ted@midg3t.net>
	1022	dnl * Added GCC_STACK_PROTECTOR macro for simpler (one-line) invocation
	1023	dnl * GCC_STACK_PROTECT_LIB now adds -lssp to LIBS rather than LDFLAGS
	1024	dnl
	1025	dnl About ssp:
	1026	dnl GCC extension for protecting applications from stack-smashing attacks
	1027	dnl http://www.research.ibm.com/trl/projects/security/ssp/
	1028	dnl
	1029	dnl Usage:
	1030	dnl Most people will simply call GCC_STACK_PROTECTOR.
	1031	dnl If you only use one of C or C++, you can save time by only calling the
	1032	dnl macro appropriate for that language. In that case you should also call
	1033	dnl GCC_STACK_PROTECT_LIB first.
	1034	dnl
	1035	dnl GCC_STACK_PROTECTOR
	1036	dnl Tries to turn on stack protection for C and C++ by calling the following
	1037	dnl three macros with the right languages.
	1038	dnl
	1039	dnl GCC_STACK_PROTECT_CC
	1040	dnl checks -fstack-protector with the C compiler, if it exists then updates
	1041	dnl CFLAGS and defines ENABLE_SSP_CC
	1042	dnl
	1043	dnl GCC_STACK_PROTECT_CXX
	1044	dnl checks -fstack-protector with the C++ compiler, if it exists then updates
	1045	dnl CXXFLAGS and defines ENABLE_SSP_CXX
	1046	dnl
	1047	dnl GCC_STACK_PROTECT_LIB
	1048	dnl adds -lssp to LIBS if it is available
	1049	dnl ssp is usually provided as part of libc, but was previously a separate lib
	1050	dnl It does not hurt to add -lssp even if libc provides SSP - in that case
	1051	dnl libssp will simply be ignored.
	1052	dnl
	1053
	1054	AC_DEFUN([GCC_STACK_PROTECT_LIB],[
	1055	AC_CACHE_CHECK([whether libssp exists], ssp_cv_lib,
	1056	[ssp_old_libs="$LIBS"
	1057	LIBS="$LIBS -lssp"
	1058	AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[ssp_cv_lib=yes],[ssp_cv_lib=no])
	1059	LIBS="$ssp_old_libs"
	1060	])
	1061	if test $ssp_cv_lib = yes; then
	1062	LIBS="$LIBS -lssp"
	1063	fi
	1064	])
	1065
	1066	AC_DEFUN([GCC_STACK_PROTECT_CC],[
	1067	AC_LANG_ASSERT(C)
	1068	if test "X$CC" != "X"; then
	1069	AC_CACHE_CHECK([whether ${CC} accepts -fstack-protector-strong],
	1070	ssp_cv_cc,
	1071	[ssp_old_cflags="$CFLAGS"
	1072	CFLAGS="$CFLAGS -fstack-protector-strong"
	1073	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[ssp_cv_cc=yes],[ssp_cv_cc=no])
	1074	CFLAGS="$ssp_old_cflags"
	1075	])
	1076	if test $ssp_cv_cc = no; then
	1077	AC_CACHE_CHECK([whether ${CC} accepts -fstack-protector-all],
	1078	ssp_cv_cc,
	1079	[ssp_old_cflags="$CFLAGS"
	1080	CFLAGS="$CFLAGS -fstack-protector-all"
	1081	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[ssp_cv_cc=yes],[ssp_cv_cc=no])
	1082	CFLAGS="$ssp_old_cflags"
	1083	])
	1084	if test $ssp_cv_cc = no; then
	1085	AC_CACHE_CHECK([whether ${CC} accepts -fstack-protector],
	1086	ssp_cv_cc,
	1087	[ssp_old_cflags="$CFLAGS"
	1088	CFLAGS="$CFLAGS -fstack-protector"
	1089	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[ssp_cv_cc=yes],[ssp_cv_cc=no])
	1090	CFLAGS="$ssp_old_cflags"
	1091	])
	1092	if test $ssp_cv_cc = yes; then
	1093	CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector"
	1094	LDFLAGS="$LDFLAGS -fstack-protector"
	1095	AC_DEFINE([ENABLE_SSP_CC], [1], [Define if SSP C support is enabled.])
	1096	fi
	1097	else
	1098	if test $ssp_cv_cc = yes; then
	1099	CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector-all"
	1100	LDFLAGS="$LDFLAGS -fstack-protector-all"
	1101	AC_DEFINE([ENABLE_SSP_CC], [1], [Define if SSP C support is enabled.])
	1102	fi
	1103	fi
	1104	else
	1105	if test $ssp_cv_cc = yes; then
	1106	CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector-strong"
	1107	LDFLAGS="$LDFLAGS -fstack-protector-strong"
	1108	AC_DEFINE([ENABLE_SSP_CC], [1], [Define if SSP C support is enabled.])
	1109	fi
	1110	fi
	1111	fi
	1112	])
	1113
	1114	AC_DEFUN([GCC_STACK_PROTECT_CXX],[
	1115	AC_LANG_ASSERT(C++)
	1116	if test "X$CXX" != "X"; then
	1117	AC_CACHE_CHECK([whether ${CXX} accepts -fstack-protector],
	1118	ssp_cv_cxx,
	1119	[ssp_old_cxxflags="$CXXFLAGS"
	1120	CXXFLAGS="$CXXFLAGS -fstack-protector"
	1121	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[ssp_cv_cxx=yes],[ssp_cv_cxx=no])
	1122	CXXFLAGS="$ssp_old_cxxflags"
	1123	])
	1124	if test $ssp_cv_cxx = yes; then
	1125	CXXFLAGS="$CXXFLAGS -fstack-protector"
	1126	AC_DEFINE([ENABLE_SSP_CXX], [1], [Define if SSP C++ support is enabled.])
	1127	fi
	1128	fi
	1129	])
	1130
	1131	AC_DEFUN([GCC_STACK_PROTECTOR],[
	1132	GCC_STACK_PROTECT_LIB
	1133
	1134	AC_LANG_PUSH([C])
	1135	GCC_STACK_PROTECT_CC
	1136	AC_LANG_POP([C])
	1137
	1138	AC_LANG_PUSH([C++])
	1139	GCC_STACK_PROTECT_CXX
	1140	AC_LANG_POP([C++])
	1141	])
	1142
	1143
	1144	AC_DEFUN([GCC_PIE_CC],[
	1145	AC_LANG_ASSERT(C)
	1146	if test "X$CC" != "X"; then
	1147	AC_CACHE_CHECK([whether ${CC} accepts -pie -fPIE],
	1148	pie_cv_cc,
	1149	[pie_old_cflags="$CFLAGS"
	1150	CFLAGS="$CFLAGS -pie -fPIE"
	1151	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[pie_cv_cc=yes],[pie_cv_cc=no])
	1152	CFLAGS="$pie_old_cflags"
	1153	])
	1154	if test $pie_cv_cc = yes; then
	1155	case "$host_os" in
	1156	cygwin)
	1157	;;
	1158	*)
	1159	PIE_CFLAGS="-fPIE"
	1160	PIE_LDFLAGS="-pie"
	1161	;;
	1162	esac
	1163	fi
	1164	fi
	1165	])
	1166
	1167	AC_DEFUN([GCC_STACK_CHECK_CC],[
	1168	AC_LANG_ASSERT(C)
	1169	if test "X$CC" != "X"; then
	1170	AC_CACHE_CHECK([whether ${CC} accepts -fstack-clash-protection],
	1171	stackcheck_cv_cc,
	1172	[stackcheck_old_cflags="$CFLAGS"
	1173	CFLAGS="$CFLAGS -fstack-clash-protection"
	1174	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[stackcheck_cv_cc=yes],[stackcheck_cv_cc=no])
	1175	CFLAGS="$stackcheck_old_cflags"
	1176	])
	1177	if test $stackcheck_cv_cc = yes; then
	1178	CFLAGS="$CFLAGS -fstack-clash-protection"
	1179	fi
	1180	fi
	1181	])
	1182
	1183	AC_DEFUN([GCC_FLAG_CHECK],[
	1184	AC_LANG_ASSERT(C)
	1185	if test "X$CC" != "X"; then
	1186	AC_MSG_CHECKING([whether ${CC} accepts $1])
	1187	saved_cflags="$CFLAGS"
	1188	# any -Wno- option will always succeed :-(
	1189	flag_check_opt=`echo $1 \| sed 's,-Wno-,-W,'`
	1190	CFLAGS="$CFLAGS -Werror $flag_check_opt"
	1191	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[flag_check_cv=yes],[flag_check_cv=no])
	1192	CFLAGS="$saved_cflags"
	1193	if test $flag_check_cv = yes; then
	1194	CFLAGS="$CFLAGS $1"
	1195	AC_MSG_RESULT([yes])
	1196	else
	1197	AC_MSG_RESULT([no])
	1198	fi
	1199	fi
	1200	])
	1201
	1202	AC_DEFUN([SAMHAIN_POSIX],[
	1203	AC_MSG_CHECKING([whether _POSIX_SOURCE is necessary])
	1204	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>
	1205	void fileno(int);int fdopen(int, char *); ]], [[]])],[
	1206	AC_MSG_RESULT(yes)
	1207	AC_DEFINE([_POSIX_SOURCE], [1], [Define if POSIX functions are required])
	1208	],[AC_MSG_RESULT(no)])
	1209	])dnl
	1210
	1211	dnl checks for a known 64 bit programming environment
	1212	dnl AC_RUN_IFELSE(PROGRAM,
	1213	dnl [ACTION-IF-TRUE], [ACTION-IF-FALSE],
	1214	dnl [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
	1215	dnl
	1216	AC_DEFUN([SAMHAIN_PRG_ENV],[
	1217	AC_MSG_CHECKING([for a known 64 bit programming environment])
	1218	# Compile and run a program that determines the programming environment
	1219	AC_RUN_IFELSE([
	1220	AC_LANG_SOURCE([[
	1221	#include <stdio.h>
	1222	int main(int argc,char **argv)
	1223	{
	1224	if (argc > 1) {
	1225	#if defined(__arch64__)
	1226	printf("__arch64__\n");
	1227	#elif defined(__ia64__)
	1228	printf("__ia64__\n");
	1229	#elif defined(__x86_64__)
	1230	printf("__x86_64__\n");
	1231	#elif defined(__LP64__)
	1232	printf("__LP64__\n");
	1233	#elif defined(__64BIT__)
	1234	printf("__64BIT__\n");
	1235	#elif defined(_LP64)
	1236	printf("_LP64\n");
	1237	#elif defined(_M_IA64)
	1238	printf("_M_IA64\n");
	1239	#elif defined(_MIPS_SZLONG) && (_MIPS_SZLONG == 64)
	1240	printf("_MIPS_64\n");
	1241	#else
	1242	choke me
	1243	#endif
	1244	}
	1245	return 0;
	1246	}
	1247	]])
	1248	],[
	1249	# Program compiled and ran, so get version by adding argument.
	1250	samhain_prg_ENV=`./conftest$ac_exeext x`
	1251	samhain_64=yes
	1252	AC_MSG_RESULT([$samhain_prg_ENV])
	1253	],[
	1254	AC_MSG_RESULT([none])
	1255	],[
	1256	AC_MSG_RESULT([none])
	1257	])
	1258	])dnl
	1259
	1260	AC_DEFUN([SAMHAIN_X86_64],[
	1261	AC_MSG_CHECKING([for x86_64])
	1262	AC_RUN_IFELSE([AC_LANG_SOURCE([[
	1263	int main() {
	1264	__asm__ volatile (
	1265	"movq %rax, %rax"
	1266	);
	1267	return 0;
	1268	}
	1269	]])],[
	1270	AC_MSG_RESULT(yes)
	1271	samhain_64=yes
	1272	tiger_src=sh_tiger1_64.c
	1273	samhain_64_asm=yes
	1274	],[
	1275	AC_MSG_RESULT([no])
	1276	],[
	1277	AC_MSG_RESULT([no])
	1278	])
	1279	])dnl
	1280
	1281
	1282	AC_DEFUN([SAMHAIN_64],[
	1283	samhain_64=no
	1284	tiger_src=sh_tiger1.c
	1285	samhain_64_asm=no
	1286	#
	1287	# if sizeof(unsigned long) = 4, try compiler macros for 64bit
	1288	#
	1289	if test "x$ac_cv_sizeof_unsigned_long" = x4; then
	1290	if test "x$ac_cv_sizeof_unsigned_long_long" = x8; then
	1291	SAMHAIN_PRG_ENV
	1292	if test "x$samhain_64" = xyes; then
	1293	tiger_src=sh_tiger1_64.c
	1294	fi
	1295	#
	1296	# if GCC and __i386__, use precompiled assembler
	1297	#
	1298	if test "x$GCC" = xyes; then
	1299	AC_MSG_CHECKING([for non-apple non-cygwin i386])
	1300	samhain_i386=no
	1301	$CC -E -dM - < /dev/null \| egrep '__i386__' >/dev/null 2>&1
	1302	if test $? = 0; then
	1303	case "$host_os" in
	1304	linux)
	1305	# apples gcc does not understand the assembly we provide
	1306	$CC -E -dM - < /dev/null \| egrep '(__sun__\|__APPLE__\|__CYGWIN__)' >/dev/null 2>&1 \|\| samhain_i386=yes
	1307	;;
	1308	*)
	1309	;;
	1310	esac
	1311	fi
	1312	AC_MSG_RESULT([$samhain_i386])
	1313	if test "x$samhain_i386" = xyes; then
	1314	GCC_PIE_CC
	1315	if test $pie_cv_cc = yes; then
	1316	tiger_src=sh_tiger1.s
	1317	AC_DEFINE([TIGER_32_BIT_S], [1], [Define to use tiger 32 bit i386 assembler])
	1318	fi
	1319	fi
	1320	fi
	1321	#
	1322	#
	1323	#
	1324	else
	1325	samhain_64=no
	1326	tiger_src=sh_tiger1.c
	1327	fi
	1328	else
	1329	#
	1330	# sizeof(unsigned long) = 8
	1331	#
	1332	tiger_src=sh_tiger1_64.c
	1333	samhain_64=yes
	1334	#
	1335	# check for x86_64 (enables assembly optimizations)
	1336	#
	1337	if test "x$GCC" = xyes; then
	1338	$CC -E -dM - < /dev/null \| egrep '__clang__' >/dev/null 2>&1
	1339	if ! test $? = 0; then
	1340	case "$host_os" in
	1341	linux)
	1342	SAMHAIN_X86_64
	1343	;;
	1344	bsd)
	1345	SAMHAIN_X86_64
	1346	;;
	1347	*)
	1348	SAMHAIN_X86_64
	1349	;;
	1350	esac
	1351	fi
	1352	fi
	1353	fi
	1354	if test "x$samhain_64" = xyes; then
	1355	AC_DEFINE([TIGER_64_BIT], [1], [Define to use tiger 64 bit implementation])
	1356	fi
	1357	AC_MSG_CHECKING([for 64 bit environment])
	1358	AC_MSG_RESULT([$samhain_64])
	1359	AC_MSG_CHECKING([for tiger source to use])
	1360	AC_MSG_RESULT([$tiger_src])
	1361	AC_SUBST(tiger_src)
	1362	])dnl
	1363
	1364	AC_DEFUN([sh_CHECK_POSIX_ACL],
	1365	[
	1366	AC_CHECK_HEADERS(sys/acl.h)
	1367	if test $ac_cv_header_sys_acl_h = yes; then
	1368
	1369	AC_CHECK_LIB([acl], [acl_get_file], sh_lacl=yes, sh_lacl=no)
	1370	if test x"$sh_lacl" = xyes; then
	1371	LIBACL=-lacl
	1372	else
	1373	LIBACL=
	1374	fi
	1375
	1376	OLDLIBS="$LIBS"
	1377	LIBS="$LIBS $LIBACL"
	1378	AC_CHECK_FUNCS([acl_free acl_get_file acl_get_fd],
	1379	[sh_facl=yes],[sh_facl=no])
	1380	LIBS="$OLDLIBS"
	1381	fi
	1382
	1383	if test x"$sh_facl" = xyes; then
	1384	AC_DEFINE([USE_ACL], [1], [Define if you want ACL support.])
	1385	LIBS="$LIBS $LIBACL"
	1386	else
	1387	if test "x$enable_posix_acl" != xcheck; then
	1388	AC_MSG_FAILURE([--enable-posix-acl was given, but test for acl support failed])
	1389	fi
	1390	fi
	1391	])
	1392
	1393	AC_DEFUN([sh_CHECK_XATTR],
	1394	[
	1395	AC_CHECK_HEADERS(attr/xattr.h)
	1396	if test $ac_cv_header_attr_xattr_h = yes; then
	1397
	1398	AC_CHECK_LIB([attr], [getxattr], sh_lattr=yes, sh_lattr=no)
	1399	if test x"$sh_lattr" = xyes; then
	1400	LIBATTR=-lattr
	1401	else
	1402	LIBATTR=
	1403	fi
	1404
	1405	OLDLIBS="$LIBS"
	1406	LIBS="$LIBS $LIBATTR"
	1407	AC_CHECK_FUNCS([getxattr lgetxattr fgetxattr],
	1408	[sh_fattr=yes],[sh_fattr=no])
	1409	LIBS="$OLDLIBS"
	1410	fi
	1411
	1412	if test x"$sh_fattr" = xyes; then
	1413	AC_DEFINE([USE_XATTR], [1], [Define if you want extended attributes support.])
	1414	LIBS="$LIBS $LIBATTR"
	1415	else
	1416	if test "x$enable_selinux" != xcheck; then
	1417	AC_MSG_FAILURE([--enable-selinux was given, but test for selinux support failed])
	1418	fi
	1419	fi
	1420	])
	1421
	1422	dnl Autoconf macros for libprelude
	1423	dnl $id$
	1424
	1425	# Modified for LIBPRELUDE -- Yoann Vandoorselaere
	1426	# Modified for LIBGNUTLS -- nmav
	1427	# Configure paths for LIBGCRYPT
	1428	# Shamelessly stolen from the one of XDELTA by Owen Taylor
	1429	# Werner Koch 99-12-09
	1430
	1431	dnl AM_PATH_LIBPRELUDE([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
	1432	dnl Test for libprelude, and define LIBPRELUDE_PREFIX, LIBPRELUDE_CFLAGS, LIBPRELUDE_PTHREAD_CFLAGS,
	1433	dnl LIBPRELUDE_LDFLAGS, and LIBPRELUDE_LIBS
	1434	dnl
	1435	AC_DEFUN([AM_PATH_LIBPRELUDE],
	1436	[dnl
	1437	dnl Get the cflags and libraries from the libprelude-config script
	1438	dnl
	1439	dnl AC_ARG_WITH(libprelude-prefix,
	1440	dnl [ --with-libprelude-prefix=PFX Prefix where libprelude is installed (optional)],
	1441	dnl libprelude_config_prefix="$withval", libprelude_config_prefix="")
	1442	dnl
	1443	dnl if test x$libprelude_config_prefix != x ; then
	1444	dnl if test x${LIBPRELUDE_CONFIG+set} != xset ; then
	1445	dnl LIBPRELUDE_CONFIG=$libprelude_config_prefix/bin/libprelude-config
	1446	dnl fi
	1447	dnl fi
	1448	dnl
	1449	dnl AC_PATH_PROG(LIBPRELUDE_CONFIG, libprelude-config, no)
	1450	min_libprelude_version=ifelse([$1], ,0.1.0,$1)
	1451	AC_MSG_CHECKING(for libprelude - version >= $min_libprelude_version)
	1452	no_libprelude=""
	1453	if test "$LIBPRELUDE_CONFIG" = "no" ; then
	1454	no_libprelude=yes
	1455	else
	1456	LIBPRELUDE_CFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --cflags`
	1457	LIBPRELUDE_PTHREAD_CFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --pthread-cflags`
	1458	LIBPRELUDE_LDFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --ldflags`
	1459	LIBPRELUDE_LIBS=`$LIBPRELUDE_CONFIG $libprelude_config_args --libs`
	1460	LIBPRELUDE_PREFIX=`$LIBPRELUDE_CONFIG $libprelude_config_args --prefix`
	1461	LIBPRELUDE_CONFIG_PREFIX=`$LIBPRELUDE_CONFIG $libprelude_config_args --config-prefix`
	1462	libprelude_config_version=`$LIBPRELUDE_CONFIG $libprelude_config_args --version`
	1463
	1464
	1465	ac_save_CFLAGS="$CFLAGS"
	1466	ac_save_LDFLAGS="$LDFLAGS"
	1467	ac_save_LIBS="$LIBS"
	1468	CFLAGS="$CFLAGS $LIBPRELUDE_CFLAGS"
	1469	LDFLAGS="$LDFLAGS $LIBPRELUDE_LDFLAGS"
	1470	LIBS="$LIBS $LIBPRELUDE_LIBS"
	1471	dnl
	1472	dnl Now check if the installed libprelude is sufficiently new. Also sanity
	1473	dnl checks the results of libprelude-config to some extent
	1474	dnl
	1475	rm -f conf.libpreludetest
	1476	AC_RUN_IFELSE([AC_LANG_SOURCE([[
	1477	#include <stdio.h>
	1478	#include <stdlib.h>
	1479	#include <string.h>
	1480	#include <libprelude/prelude.h>
	1481
	1482	int
	1483	main ()
	1484	{
	1485	system ("touch conf.libpreludetest");
	1486
	1487	if( strcmp( prelude_check_version(NULL), "$libprelude_config_version" ) )
	1488	{
	1489	printf("\n*** 'libprelude-config --version' returned %s, but LIBPRELUDE (%s)\n",
	1490	"$libprelude_config_version", prelude_check_version(NULL) );
	1491	printf("*** was found! If libprelude-config was correct, then it is best\n");
	1492	printf("*** to remove the old version of LIBPRELUDE. You may also be able to fix the error\n");
	1493	printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
	1494	printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
	1495	printf("*** required on your system.\n");
	1496	printf("*** If libprelude-config was wrong, set the environment variable LIBPRELUDE_CONFIG\n");
	1497	printf("*** to point to the correct copy of libprelude-config, and remove the file config.cache\n");
	1498	printf("*** before re-running configure\n");
	1499	}
	1500	else if ( strcmp(prelude_check_version(NULL), LIBPRELUDE_VERSION ) )
	1501	{
	1502	printf("\n*** LIBPRELUDE header file (version %s) does not match\n", LIBPRELUDE_VERSION);
	1503	printf("*** library (version %s)\n", prelude_check_version(NULL) );
	1504	}
	1505	else
	1506	{
	1507	if ( prelude_check_version( "$min_libprelude_version" ) )
	1508	{
	1509	return 0;
	1510	}
	1511	else
	1512	{
	1513	printf("no\n*** An old version of LIBPRELUDE (%s) was found.\n",
	1514	prelude_check_version(NULL) );
	1515	printf("*** You need a version of LIBPRELUDE newer than %s. The latest version of\n",
	1516	"$min_libprelude_version" );
	1517	printf("*** LIBPRELUDE is always available from http://www.prelude-ids.org/download/releases.\n");
	1518	printf("*** \n");
	1519	printf("*** If you have already installed a sufficiently new version, this error\n");
	1520	printf("*** probably means that the wrong copy of the libprelude-config shell script is\n");
	1521	printf("*** being found. The easiest way to fix this is to remove the old version\n");
	1522	printf("*** of LIBPRELUDE, but you can also set the LIBPRELUDE_CONFIG environment to point to the\n");
	1523	printf("*** correct copy of libprelude-config. (In this case, you will have to\n");
	1524	printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
	1525	printf("*** so that the correct libraries are found at run-time))\n");
	1526	}
	1527	}
	1528	return 1;
	1529	}
	1530	]])],[],[no_libprelude=yes],[echo $ac_n "cross compiling; assumed OK... $ac_c"])
	1531	CFLAGS="$ac_save_CFLAGS"
	1532	LIBS="$ac_save_LIBS"
	1533	LDFLAGS="$ac_save_LDFLAGS"
	1534	fi
	1535
	1536	if test "x$no_libprelude" = x ; then
	1537	AC_MSG_RESULT(yes)
	1538	ifelse([$2], , :, [$2])
	1539	else
	1540	if test -f conf.libpreludetest ; then
	1541	:
	1542	else
	1543	AC_MSG_RESULT(no)
	1544	fi
	1545	if test "$LIBPRELUDE_CONFIG" = "no" ; then
	1546	echo "*** The libprelude-config script installed by LIBPRELUDE could not be found"
	1547	echo "*** If LIBPRELUDE was installed in PREFIX, make sure PREFIX/bin is in"
	1548	echo "*** your path, or set the LIBPRELUDE_CONFIG environment variable to the"
	1549	echo "*** full path to libprelude-config."
	1550	else
	1551	if test -f conf.libpreludetest ; then
	1552	:
	1553	else
	1554	echo "*** Could not run libprelude test program, checking why..."
	1555	CFLAGS="$CFLAGS $LIBPRELUDE_CFLAGS"
	1556	LDFLAGS="$LDFLAGS $LIBPRELUDE_LDFLAGS"
	1557	LIBS="$LIBS $LIBPRELUDE_LIBS"
	1558	AC_LINK_IFELSE([AC_LANG_PROGRAM([[
	1559	#include <stdio.h>
	1560	#include <stdlib.h>
	1561	#include <string.h>
	1562	#include <libprelude/prelude.h>
	1563	]], [[ return !!prelude_check_version(NULL); ]])],[ echo "*** The test program compiled, but did not run. This usually means"
	1564	echo "*** that the run-time linker is not finding LIBPRELUDE or finding the wrong"
	1565	echo "*** version of LIBPRELUDE. If it is not finding LIBPRELUDE, you'll need to set your"
	1566	echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
	1567	echo "*** to the installed location Also, make sure you have run ldconfig if that"
	1568	echo "*** is required on your system"
	1569	echo "***"
	1570	echo "*** If you have an old version installed, it is best to remove it, although"
	1571	echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
	1572	echo "*" ],[ echo "* The test program failed to compile or link. See the file config.log for the"
	1573	echo "*** exact error that occured. This usually means LIBPRELUDE was incorrectly installed"
	1574	echo "*** or that you have moved LIBPRELUDE since it was installed. In the latter case, you"
	1575	echo "*** may want to edit the libprelude-config script: $LIBPRELUDE_CONFIG" ])
	1576	CFLAGS="$ac_save_CFLAGS"
	1577	LDFLAGS="$ac_save_LDFLAGS"
	1578	LIBS="$ac_save_LIBS"
	1579	fi
	1580	fi
	1581	LIBPRELUDE_CFLAGS=""
	1582	LIBPRELUDE_LDFLAGS=""
	1583	LIBPRELUDE_LIBS=""
	1584	ifelse([$3], , :, [$3])
	1585	fi
	1586	rm -f conf.libpreludetest
	1587	AC_SUBST(LIBPRELUDE_CFLAGS)
	1588	AC_SUBST(LIBPRELUDE_PTHREAD_CFLAGS)
	1589	AC_SUBST(LIBPRELUDE_LDFLAGS)
	1590	AC_SUBST(LIBPRELUDE_LIBS)
	1591	AC_SUBST(LIBPRELUDE_PREFIX)
	1592	AC_SUBST(LIBPRELUDE_CONFIG_PREFIX)
	1593	])
	1594
	1595
	1596	##### http://autoconf-archive.cryp.to/acx_pthread.html
	1597	#
	1598	# SYNOPSIS
	1599	#
	1600	# ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
	1601	#
	1602	# DESCRIPTION
	1603	#
	1604	# This macro figures out how to build C programs using POSIX threads.
	1605	# It sets the PTHREAD_LIBS output variable to the threads library and
	1606	# linker flags, and the PTHREAD_CFLAGS output variable to any special
	1607	# C compiler flags that are needed. (The user can also force certain
	1608	# compiler flags/libs to be tested by setting these environment
	1609	# variables.)
	1610	#
	1611	# Also sets PTHREAD_CC to any special C compiler that is needed for
	1612	# multi-threaded programs (defaults to the value of CC otherwise).
	1613	# (This is necessary on AIX to use the special cc_r compiler alias.)
	1614	#
	1615	# NOTE: You are assumed to not only compile your program with these
	1616	# flags, but also link it with them as well. e.g. you should link
	1617	# with $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS
	1618	# $LIBS
	1619	#
	1620	# If you are only building threads programs, you may wish to use
	1621	# these variables in your default LIBS, CFLAGS, and CC:
	1622	#
	1623	# LIBS="$PTHREAD_LIBS $LIBS"
	1624	# CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
	1625	# CC="$PTHREAD_CC"
	1626	#
	1627	# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute
	1628	# constant has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to
	1629	# that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
	1630	#
	1631	# ACTION-IF-FOUND is a list of shell commands to run if a threads
	1632	# library is found, and ACTION-IF-NOT-FOUND is a list of commands to
	1633	# run it if it is not found. If ACTION-IF-FOUND is not specified, the
	1634	# default action will define HAVE_PTHREAD.
	1635	#
	1636	# Please let the authors know if this macro fails on any platform, or
	1637	# if you have any other suggestions or comments. This macro was based
	1638	# on work by SGJ on autoconf scripts for FFTW (http://www.fftw.org/)
	1639	# (with help from M. Frigo), as well as ac_pthread and hb_pthread
	1640	# macros posted by Alejandro Forero Cuervo to the autoconf macro
	1641	# repository. We are also grateful for the helpful feedback of
	1642	# numerous users.
	1643	#
	1644	# LAST MODIFICATION
	1645	#
	1646	# 2007-07-29
	1647	#
	1648	# COPYLEFT
	1649	#
	1650	# Copyright (c) 2007 Steven G. Johnson <stevenj@alum.mit.edu>
	1651	#
	1652	# This program is free software: you can redistribute it and/or
	1653	# modify it under the terms of the GNU General Public License as
	1654	# published by the Free Software Foundation, either version 3 of the
	1655	# License, or (at your option) any later version.
	1656	#
	1657	# This program is distributed in the hope that it will be useful, but
	1658	# WITHOUT ANY WARRANTY; without even the implied warranty of
	1659	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	1660	# General Public License for more details.
	1661	#
	1662	# You should have received a copy of the GNU General Public License
	1663	# along with this program. If not, see
	1664	# <http://www.gnu.org/licenses/>.
	1665	#
	1666	# As a special exception, the respective Autoconf Macro's copyright
	1667	# owner gives unlimited permission to copy, distribute and modify the
	1668	# configure scripts that are the output of Autoconf when processing
	1669	# the Macro. You need not follow the terms of the GNU General Public
	1670	# License when using or distributing such scripts, even though
	1671	# portions of the text of the Macro appear in them. The GNU General
	1672	# Public License (GPL) does govern all other use of the material that
	1673	# constitutes the Autoconf Macro.
	1674	#
	1675	# This special exception to the GPL applies to versions of the
	1676	# Autoconf Macro released by the Autoconf Macro Archive. When you
	1677	# make and distribute a modified version of the Autoconf Macro, you
	1678	# may extend this special exception to the GPL to apply to your
	1679	# modified version as well.
	1680
	1681	AC_DEFUN([ACX_PTHREAD], [
	1682	AC_REQUIRE([AC_CANONICAL_HOST])
	1683	AC_LANG_SAVE
	1684	AC_LANG([C])
	1685	acx_pthread_ok=no
	1686
	1687	# We used to check for pthread.h first, but this fails if pthread.h
	1688	# requires special compiler flags (e.g. on True64 or Sequent).
	1689	# It gets checked for in the link test anyway.
	1690
	1691	# First of all, check if the user has set any of the PTHREAD_LIBS,
	1692	# etcetera environment variables, and if threads linking works using
	1693	# them:
	1694	if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
	1695	save_CFLAGS="$CFLAGS"
	1696	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
	1697	save_LIBS="$LIBS"
	1698	LIBS="$PTHREAD_LIBS $LIBS"
	1699	AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
	1700	AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
	1701	AC_MSG_RESULT($acx_pthread_ok)
	1702	if test x"$acx_pthread_ok" = xno; then
	1703	PTHREAD_LIBS=""
	1704	PTHREAD_CFLAGS=""
	1705	fi
	1706	LIBS="$save_LIBS"
	1707	CFLAGS="$save_CFLAGS"
	1708	fi
	1709
	1710	# We must check for the threads library under a number of different
	1711	# names; the ordering is very important because some systems
	1712	# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
	1713	# libraries is broken (non-POSIX).
	1714
	1715	# Create a list of thread flags to try. Items starting with a "-" are
	1716	# C compiler flags, and other items are library names, except for "none"
	1717	# which indicates that we try without any flags at all, and "pthread-config"
	1718	# which is a program returning the flags for the Pth emulation library.
	1719
	1720	acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
	1721
	1722	# The ordering is (sometimes) important. Some notes on the
	1723	# individual items follow:
	1724
	1725	# pthreads: AIX (must check this before -lpthread)
	1726	# none: in case threads are in libc; should be tried before -Kthread and
	1727	# other compiler flags to prevent continual compiler warnings
	1728	# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
	1729	# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
	1730	# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
	1731	# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
	1732	# -pthreads: Solaris/gcc
	1733	# -mthreads: Mingw32/gcc, Lynx/gcc
	1734	# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
	1735	# doesn't hurt to check since this sometimes defines pthreads too;
	1736	# also defines -D_REENTRANT)
	1737	# ... -mt is also the pthreads flag for HP/aCC
	1738	# pthread: Linux, etcetera
	1739	# --thread-safe: KAI C++
	1740	# pthread-config: use pthread-config program (for GNU Pth library)
	1741
	1742	case "${host_cpu}-${host_os}" in
	1743	solaris)
	1744
	1745	# On Solaris (at least, for some versions), libc contains stubbed
	1746	# (non-functional) versions of the pthreads routines, so link-based
	1747	# tests will erroneously succeed. (We need to link with -pthreads/-mt/
	1748	# -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
	1749	# a function called by this macro, so we could check for that, but
	1750	# who knows whether they'll stub that too in a future libc.) So,
	1751	# we'll just look for -pthreads and -lpthread first:
	1752
	1753	acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
	1754	;;
	1755	esac
	1756
	1757	if test x"$acx_pthread_ok" = xno; then
	1758	for flag in $acx_pthread_flags; do
	1759
	1760	case $flag in
	1761	none)
	1762	AC_MSG_CHECKING([whether pthreads work without any flags])
	1763	;;
	1764
	1765	-pthread)
	1766	AC_MSG_CHECKING([whether pthreads work with $flag])
	1767	PTHREAD_CFLAGS="$flag"
	1768	;;
	1769
	1770	-*)
	1771	AC_MSG_CHECKING([whether pthreads work with $flag])
	1772	PTHREAD_CFLAGS="$flag"
	1773	;;
	1774
	1775	pthread-config)
	1776	AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
	1777	if test x"$acx_pthread_config" = xno; then continue; fi
	1778	PTHREAD_CFLAGS="`pthread-config --cflags`"
	1779	PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
	1780	;;
	1781
	1782	*)
	1783	AC_MSG_CHECKING([for the pthreads library -l$flag])
	1784	PTHREAD_LIBS="-l$flag"
	1785	;;
	1786	esac
	1787
	1788	save_LIBS="$LIBS"
	1789	save_CFLAGS="$CFLAGS"
	1790	save_LDFLAGS="$LDFLAGS"
	1791	LIBS="$PTHREAD_LIBS $LIBS"
	1792	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
	1793	LDFLAGS="$LDFLAGS $PTHREAD_CFLAGS"
	1794
	1795	# Check for various functions. We must include pthread.h,
	1796	# since some functions may be macros. (On the Sequent, we
	1797	# need a special flag -Kthread to make this header compile.)
	1798	# We check for pthread_join because it is in -lpthread on IRIX
	1799	# while pthread_create is in libc. We check for pthread_attr_init
	1800	# due to DEC craziness with -lpthreads. We check for
	1801	# pthread_cleanup_push because it is one of the few pthread
	1802	# functions on Solaris that doesn't have a non-functional libc stub.
	1803	# We try pthread_create on general principles.
	1804	AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]], [[pthread_t th; pthread_join(th, 0);
	1805	pthread_attr_init(0); pthread_cleanup_push(0, 0);
	1806	pthread_create(0,0,0,0); pthread_cleanup_pop(0); ]])],[acx_pthread_ok=yes],[])
	1807
	1808	LIBS="$save_LIBS"
	1809	LDFLAGS="$save_LDFLAGS"
	1810	CFLAGS="$save_CFLAGS"
	1811
	1812	AC_MSG_RESULT($acx_pthread_ok)
	1813	if test "x$acx_pthread_ok" = xyes; then
	1814	break;
	1815	fi
	1816
	1817	PTHREAD_LIBS=""
	1818	PTHREAD_CFLAGS=""
	1819	done
	1820	fi
	1821
	1822	# Various other checks:
	1823	if test "x$acx_pthread_ok" = xyes; then
	1824	save_LIBS="$LIBS"
	1825	LIBS="$PTHREAD_LIBS $LIBS"
	1826	save_CFLAGS="$CFLAGS"
	1827	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
	1828
	1829	# Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
	1830	AC_MSG_CHECKING([for joinable pthread attribute])
	1831	attr_name=unknown
	1832	for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
	1833	AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]], [[int attr=$attr; return attr;]])],[attr_name=$attr; break],[])
	1834	done
	1835	AC_MSG_RESULT($attr_name)
	1836	if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
	1837	AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE], [${attr_name}],
	1838	[Define to necessary symbol if this constant
	1839	uses a non-standard name on your system.])
	1840	fi
	1841
	1842	# Solaris lossage: default is obsolete semantics for getpwnam_r,
	1843	# getpwuid_r, getgrgid_r, unless _POSIX_PTHREAD_SEMANTICS is defined
	1844	AC_MSG_CHECKING([if more special flags are required for pthreads])
	1845	flag=no
	1846	case "${host_cpu}-${host_os}" in
	1847	-aix \| -freebsd \| -darwin) flag="-D_THREAD_SAFE";;
	1848	-osf \| -hpux) flag="-D_REENTRANT";;
	1849	solaris) flag="-D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT";;
	1850	esac
	1851	AC_MSG_RESULT(${flag})
	1852	if test "x$flag" != xno; then
	1853	PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
	1854	fi
	1855
	1856	# Detect PTHREAD_MUTEX_RECURSIVE
	1857	AC_MSG_CHECKING([for recursive mutexes])
	1858	mutex_recursive=no
	1859	AC_LINK_IFELSE([AC_LANG_PROGRAM([[
	1860	#define _XOPEN_SOURCE 500
	1861	#include <pthread.h>]], [[
	1862	pthread_mutexattr_t mta;
	1863	pthread_mutexattr_settype(&mta, PTHREAD_MUTEX_RECURSIVE);
	1864	return 0;]])],[mutex_recursive=yes],[])
	1865	if test "x$mutex_recursive" = "xyes"
	1866	then
	1867	AC_DEFINE([HAVE_PTHREAD_MUTEX_RECURSIVE], [1], [Define if you have recursive mutexes.])
	1868	fi
	1869	AC_MSG_RESULT($mutex_recursive)
	1870
	1871	LIBS="$save_LIBS"
	1872	CFLAGS="$save_CFLAGS"
	1873
	1874	# More AIX lossage: must compile with xlc_r or cc_r
	1875	if test x"$GCC" != xyes; then
	1876	AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC})
	1877	else
	1878	PTHREAD_CC=$CC
	1879	fi
	1880	else
	1881	PTHREAD_CC="$CC"
	1882	fi
	1883
	1884	if test x"$acx_pthread_ok" = xyes; then
	1885	PTHREAD_CFLAGS="${PTHREAD_CFLAGS} -DUSE_MALLOC_LOCK=1"
	1886	fi
	1887
	1888	AC_SUBST(PTHREAD_LIBS)
	1889	AC_SUBST(PTHREAD_CFLAGS)
	1890	AC_SUBST(PTHREAD_LDFLAGS)
	1891	AC_SUBST(PTHREAD_CC)
	1892
	1893	# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
	1894	if test x"$acx_pthread_ok" = xyes; then
	1895	ifelse([$1],,AC_DEFINE([HAVE_PTHREAD], [1], [Define if you have POSIX threads libraries and header files.]),[$1])
	1896	:
	1897	else
	1898	acx_pthread_ok=no
	1899	$2
	1900	fi
	1901	AC_LANG_RESTORE
	1902	])dnl ACX_PTHREAD
	1903
	1904
	1905
	1906
	1907	dnl Copyright Â© 2004 Loic Dachary <loic@senga.org>
	1908	dnl
	1909	dnl This program is free software; you can redistribute it and/or modify
	1910	dnl it under the terms of the GNU General Public License as published by
	1911	dnl the Free Software Foundation; either version 2 of the License, or (at
	1912	dnl your option) any later version.
	1913	dnl
	1914	dnl Use ZLIB_HOME instead of option
	1915
	1916	AC_DEFUN([CHECK_ZLIB],[
	1917
	1918	if test "x${ZLIB_HOME}" = "x"; then
	1919	ZLIB_HOME=/usr/local
	1920	if test ! -f "${ZLIB_HOME}/include/zlib.h"
	1921	then
	1922	ZLIB_HOME=/usr
	1923	fi
	1924	fi
	1925
	1926	zlib_found=no
	1927
	1928	ZLIB_OLD_LDFLAGS=$LDFLAGS
	1929	ZLIB_OLD_CPPFLAGS=$LDFLAGS
	1930	if test "x${ZLIB_HOME}" = "x/usr"; then
	1931	:
	1932	else
	1933	LDFLAGS="$LDFLAGS -L${ZLIB_HOME}/lib"
	1934	CPPFLAGS="$CPPFLAGS -I${ZLIB_HOME}/include"
	1935	fi
	1936	AC_LANG_SAVE
	1937	AC_LANG([C])
	1938	AC_CHECK_LIB(z, inflateEnd, [zlib_cv_libz=yes], [zlib_cv_libz=no])
	1939	AC_CHECK_HEADER(zlib.h, [zlib_cv_zlib_h=yes], [zlib_cv_zlib_h=no])
	1940	AC_LANG_RESTORE
	1941	if test "$zlib_cv_libz" = "yes" -a "$zlib_cv_zlib_h" = "yes"
	1942	then
	1943	#
	1944	# If both library and header were found, use them
	1945	#
	1946	AC_CHECK_LIB(z, inflateEnd)
	1947	AC_MSG_CHECKING([zlib in ${ZLIB_HOME}])
	1948	AC_MSG_RESULT(ok)
	1949	AC_CHECK_FUNCS([compressBound])
	1950	zlib_found=yes
	1951	else
	1952	#
	1953	# If either header or library was not found, revert and bomb
	1954	#
	1955	AC_MSG_CHECKING(zlib in ${ZLIB_HOME})
	1956	LDFLAGS="$ZLIB_OLD_LDFLAGS"
	1957	CPPFLAGS="$ZLIB_OLD_CPPFLAGS"
	1958	AC_MSG_RESULT(failed)
	1959	AC_MSG_WARN([zlib not found in ZLIB_HOME, /usr/local, or /usr])
	1960	fi
	1961
	1962	])
	1963
	1964	# SH_PROG_LD
	1965	# ----------
	1966	# find the pathname to the GNU or non-GNU linker
	1967	AC_DEFUN([SH_PROG_LD],
	1968	[
	1969	AC_REQUIRE([AC_PROG_CC])dnl
	1970	AC_REQUIRE([AC_CANONICAL_HOST])dnl
	1971	AC_REQUIRE([AC_CANONICAL_BUILD])dnl
	1972	ac_prog=ld
	1973	if test "$GCC" = yes; then
	1974	# Check if gcc -print-prog-name=ld gives a path.
	1975	AC_MSG_CHECKING([for ld used by $CC])
	1976	case $host in
	1977	--mingw*)
	1978	# gcc leaves a trailing carriage return which upsets mingw
	1979	ac_prog=`($CC -print-prog-name=ld) 2>&5 \| tr -d '\015'` ;;
	1980	*)
	1981	ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
	1982	esac
	1983	case $ac_prog in
	1984	# Accept absolute paths.
	1985	[[\\/]]* \| ?:[[\\/]]*)
	1986	re_direlt='/[[^/]][[^/]]*/\.\./'
	1987	# Canonicalize the pathname of ld
	1988	ac_prog=`echo $ac_prog\| sed 's%\\\\%/%g'`
	1989	while echo $ac_prog \| grep "$re_direlt" > /dev/null 2>&1; do
	1990	ac_prog=`echo $ac_prog\| sed "s%$re_direlt%/%"`
	1991	done
	1992	test -z "$LD" && LD="$ac_prog"
	1993	;;
	1994	"")
	1995	# If it fails, then pretend we aren't using GCC.
	1996	ac_prog=ld
	1997	;;
	1998	*)
	1999	# If it is relative, then search for the first ld in PATH.
	2000	with_gnu_ld=unknown
	2001	;;
	2002	esac
	2003	else
	2004	AC_MSG_CHECKING([for ld])
	2005	fi
	2006	AC_CACHE_VAL(lt_cv_path_LD,
	2007	[if test -z "$LD"; then
	2008	lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
	2009	for ac_dir in $PATH; do
	2010	IFS="$lt_save_ifs"
	2011	test -z "$ac_dir" && ac_dir=.
	2012	if test -f "$ac_dir/$ac_prog" \|\| test -f "$ac_dir/$ac_prog$ac_exeext"; then
	2013	lt_cv_path_LD="$ac_dir/$ac_prog"
	2014	# Check to see if the program is GNU ld. I'd rather use --version,
	2015	# but apparently some variants of GNU ld only accept -v.
	2016	# Break only if it was the GNU/non-GNU ld that we prefer.
	2017	case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
	2018	GNU \| 'with BFD')
	2019	with_gnu_ld=yes
	2020	;;
	2021	*)
	2022	with_gnu_ld=no
	2023	;;
	2024	esac
	2025	fi
	2026	done
	2027	IFS="$lt_save_ifs"
	2028	else
	2029	lt_cv_path_LD="$LD" # Let the user override the test with a path.
	2030	fi])
	2031	LD="$lt_cv_path_LD"
	2032	if test -n "$LD"; then
	2033	AC_MSG_RESULT($LD)
	2034	else
	2035	AC_MSG_RESULT(no)
	2036	fi
	2037	test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
	2038	AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
	2039	[# I'd rather use --version here, but apparently some GNU lds only accept -v.
	2040	case `$LD -v 2>&1 </dev/null` in
	2041	GNU \| 'with BFD')
	2042	lt_cv_prog_gnu_ld=yes
	2043	;;
	2044	*)
	2045	lt_cv_prog_gnu_ld=no
	2046	;;
	2047	esac])
	2048	with_gnu_ld=$lt_cv_prog_gnu_ld
	2049	])# AC_PROG_LD_GNU
	2050
	2051	# SH_STRFTIME_Z
	2052	# -------------
	2053	# check whether strftime supports %z
	2054	AC_DEFUN([SH_STRFTIME_Z],
	2055	[
	2056	AC_MSG_CHECKING([whether strftime supports %z])
	2057	AC_RUN_IFELSE([AC_LANG_SOURCE([[
	2058	#include <time.h>
	2059	#include <string.h>
	2060	int main()
	2061	{
	2062	struct tm tm;
	2063	char tt[64];
	2064	memset(&tm, 0, sizeof(tm));
	2065	strftime(tt, sizeof(tt), "%z", &tm);
	2066
	2067	if (strlen(tt) != 5) return 1;
	2068	return 0;
	2069	}
	2070	]])],[
	2071	AC_MSG_RESULT([yes])
	2072	AC_DEFINE([HAVE_STRFTIME_Z], [1], [strftime supports %z])
	2073	],[
	2074	AC_MSG_RESULT([no])
	2075	],[
	2076	AC_MSG_RESULT([no])
	2077	])])
	2078
	2079	AC_DEFUN([SH_GCC_VERSION], [
	2080	GCC_VERSION=""
	2081	gcc_VERSION_MAJOR=0
	2082	gcc_VERSION_MINOR=0
	2083	AC_MSG_CHECKING([for gcc version])
	2084	if test "x$GCC" = "xyes"
	2085	then
	2086	$CC -dumpversion >/dev/null 2>&1
	2087	if test $? -eq 0
	2088	then
	2089	GCC_VERSION=`$CC -dumpversion`
	2090	gcc_VERSION_MAJOR=`echo $GCC_VERSION \| cut -d'.' -f1`
	2091	gcc_VERSION_MINOR=`echo $GCC_VERSION \| cut -d'.' -f2`
	2092	AC_DEFINE_UNQUOTED([GCC_VERSION_MAJOR], [${gcc_VERSION_MAJOR}], [gcc version major])
	2093	AC_DEFINE_UNQUOTED([GCC_VERSION_MINOR], [${gcc_VERSION_MINOR}], [gcc version minor])
	2094	AC_MSG_RESULT([$GCC_VERSION])
	2095	else
	2096	AC_MSG_RESULT([$CC -dumpversion working])
	2097	fi
	2098	else
	2099	AC_MSG_RESULT([compiler is not gcc])
	2100	fi
	2101	])
	2102
	2103
	2104
	2105	dnl -wedit:notab- Please keep this as the last line.
	2106

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