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source: trunk/aclocal.m4@ 458

Last change on this file since 458 was 441, checked in by katerina, 11 years ago
Fix for ticket #345 (compile error on Debian unstable, gcc 4.8).
File size: 63.3 KB

Line
1	dnl aclocal.m4 generated automatically by aclocal 1.3
2
3	dnl Copyright (C) 1994, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
4	dnl This Makefile.in is free software; the Free Software Foundation
5	dnl gives unlimited permission to copy and/or distribute it,
6	dnl with or without modifications, as long as this notice is preserved.
7
8	dnl This program is distributed in the hope that it will be useful,
9	dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
10	dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
11	dnl PARTICULAR PURPOSE.
12
13	#
14	# Check to make sure that the build environment is sane.
15	#
16	AC_DEFUN([AM_INIT_AUTOMAKE],
17	[
18	AC_REQUIRE([AC_PROG_INSTALL])
19	PACKAGE=[$1]
20	AC_SUBST(PACKAGE)
21	VERSION=[$2]
22	AC_SUBST(VERSION)
23	dnl test to see if srcdir already configured
24	if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
25	AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
26	fi
27	ifelse([$3],,
28	AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE")
29	AC_DEFINE_UNQUOTED(VERSION, "$VERSION"))
30	AC_REQUIRE([AC_PROG_MAKE_SET])])
31
32
33	# Define a conditional.
34
35	AC_DEFUN([AM_CONDITIONAL],
36	[AC_SUBST($1_TRUE)
37	AC_SUBST($1_FALSE)
38	if $2; then
39	$1_TRUE=
40	$1_FALSE='#'
41	else
42	$1_TRUE='#'
43	$1_FALSE=
44	fi])
45
46
47	AC_DEFUN([sh_run_prog],
48	[if test "$cross_compiling" = "yes"; then
49	AC_MSG_ERROR([Can not probe non-portable values when cross compiling])
50	fi
51	cat > conftest.$ac_ext <<EOF
52	[#]line __oline__ "configure"
53	#include "confdefs.h"
54	ifelse(AC_LANG, CPLUSPLUS, [#ifdef __cplusplus
55	extern "C" void exit(int);
56	#endif
57	])
58	[$1]
59	EOF
60	if AC_TRY_EVAL(ac_link) && test -s conftest && $2=`(./conftest 2>/dev/null)`
61	then
62	dnl Don't remove the temporary files here, so they can be examined.
63	ifelse([$3], , :, [$3])
64	else
65	echo "configure: failed program was:" >&AC_FD_CC
66	cat conftest.$ac_ext >&AC_FD_CC
67	ifelse([$4], , , [ rm -fr conftest*
68	$4
69	])
70	fi
71	rm -fr conftest* ])
72
73	dnl fs type number of the proc filing system
74	AC_DEFUN([sh_procfs_id],
75	[AC_MSG_CHECKING([f_type of /proc])
76	AC_CACHE_VAL([sh_cv_proc_fstype],
77	[sh_run_prog(
78	changequote(<<, >>)dnl
79	<<#include <stdio.h>
80	#ifdef HAVE_STDLIB_H
81	#include <stdlib.h>
82	#endif /* HAVE_STDLIB_H */
83	#ifdef HAVE_UNISTD_H
84	#include <unistd.h>
85	#endif /* HAVE_UNISTD_H */
86	#ifdef HAVE_SYS_VFS_H
87	#include <sys/vfs.h>
88	#endif
89	#ifndef Q
90	#define __Q(x) #x
91	#define Q(x) __Q(x)
92	#endif
93	int main(void)
94	{
95	struct statfs fsbuf;
96	long ft;
97	if (statfs("/", &fsbuf)!=0)
98	exit(1);
99	ft=fsbuf.f_type;
100	if (statfs("/proc/1", &fsbuf)!=0)
101	exit(1);
102	if (ft!=fsbuf.f_type)
103	printf("0x%08lx", fsbuf.f_type);
104	else
105	puts("statfs useless");
106	exit(0);
107	} >>
108	changequote([, ]), sh_cv_proc_fstype,, sh_cv_proc_fstype="a fatal error occured")])
109	AC_MSG_RESULT($sh_cv_proc_fstype)
110	if test "${sh_cv_proc_fstype}" = "a fatal error occured"; then
111	$1=$2
112	$4
113	else if test "${sh_cv_proc_fstype}" = "statfs useless"; then
114	$1=$2
115	$4
116	else
117	$1=$sh_cv_proc_fstype
118	$3
119	fi; fi ])
120
121	# Check whether mlock is broken (hpux 10.20 raises a SIGBUS if mlock
122	# is not called from uid 0 (not tested whether uid 0 works)
123	dnl AC_CHECK_MLOCK
124	dnl
125	define([AC_CHECK_MLOCK],
126	[ AC_CHECK_FUNCS(mlock)
127	if test "$ac_cv_func_mlock" = "yes"; then
128	AC_MSG_CHECKING(whether mlock is broken)
129	AC_CACHE_VAL(ac_cv_have_broken_mlock,
130	AC_TRY_RUN([
131	#include <stdlib.h>
132	#include <unistd.h>
133	#include <errno.h>
134	#include <sys/mman.h>
135	#include <sys/types.h>
136	#include <fcntl.h>
137
138	int main()
139	{
140	char *pool;
141	int err;
142	long int pgsize = getpagesize();
143
144	pool = malloc( 4096 + pgsize );
145	if( !pool )
146	return 2;
147	pool += (pgsize - ((long int)pool % pgsize));
148
149	err = mlock( pool, 4096 );
150	if( !err \|\| errno == EPERM )
151	return 0; /* okay */
152
153	return 1; /* hmmm */
154	}
155
156	],
157	ac_cv_have_broken_mlock="no",
158	ac_cv_have_broken_mlock="yes",
159	ac_cv_have_broken_mlock="assume-no"
160	)
161	)
162	if test "$ac_cv_have_broken_mlock" = "yes"; then
163	AC_DEFINE(HAVE_BROKEN_MLOCK)
164	AC_MSG_RESULT(yes)
165	else
166	if test "$ac_cv_have_broken_mlock" = "no"; then
167	AC_MSG_RESULT(no)
168	else
169	AC_MSG_RESULT(assuming no)
170	fi
171	fi
172	fi
173	])
174
175	dnl @synopsis AC_FUNC_VSNPRINTF
176	dnl
177	dnl Check whether there is a reasonably sane vsnprintf() function installed.
178	dnl "Reasonably sane" in this context means never clobbering memory beyond
179	dnl the buffer supplied, and having a sensible return value. It is
180	dnl explicitly allowed not to NUL-terminate the return value, however.
181	dnl
182	dnl @version $Id: ac_func_vsnprintf.m4,v 1.1 2001/07/26 02:00:21 guidod Exp $
183	dnl @author Gaute Strokkenes <gs234@cam.ac.uk>
184	dnl
185	AC_DEFUN([SL_CHECK_VSNPRINTF],
186	[AC_CACHE_CHECK(for working vsnprintf,
187	ac_cv_func_vsnprintf,
188	[AC_TRY_RUN(
189	[#include <stdio.h>
190	#include <stdarg.h>
191
192	int
193	doit(char * s, ...)
194	{
195	char buffer[32];
196	va_list args;
197	int r;
198
199	buffer[5] = 'X';
200
201	va_start(args, s);
202	r = vsnprintf(buffer, 5, s, args);
203	va_end(args);
204
205	/* -1 is pre-C99, 7 is C99. R.W. 17.01.2003 disallow -1 */
206
207	if (r != 7)
208	exit(1);
209
210	/* We deliberately do not care if the result is NUL-terminated or
211	not, since this is easy to work around like this. */
212
213	buffer[4] = 0;
214
215	/* Simple sanity check. */
216
217	if (strcmp(buffer, "1234"))
218	exit(1);
219
220	if (buffer[5] != 'X')
221	exit(1);
222
223	exit(0);
224	}
225
226	int
227	main(void)
228	{
229	doit("1234567");
230	exit(1);
231	}], ac_cv_func_vsnprintf=yes, ac_cv_func_vsnprintf=no, ac_cv_func_vsnprintf=no)])
232	dnl Note that the default is to be pessimistic in the case
233	dnl of cross compilation.
234	dnl If you know that the target has a sensible vsnprintf(),
235	dnl you can get around this
236	dnl by setting ac_func_vsnprintf to yes, as described in the Autoconf manual.
237	if test $ac_cv_func_vsnprintf = yes; then
238	:
239	else
240	AC_DEFINE(HAVE_BROKEN_VSNPRINTF, 1,
241	[Define if you have a broken version of the `vsnprintf' function.])
242	fi
243	])# AC_FUNC_VSNPRINTF
244
245	dnl SH_CHECK_TYPEDEF(TYPE, HAVE_NAME)
246	dnl Check whether a typedef exists and create a #define $2 if it exists
247	dnl
248	AC_DEFUN([SH_CHECK_TYPEDEF],
249	[ AC_MSG_CHECKING(for $1 typedef)
250	sh_cv_typedef_foo=`echo sh_cv_typedef_$1 \| sed -e 's% %_%g'`
251	AC_CACHE_VAL( $sh_cv_typedef_foo,
252	[AC_TRY_COMPILE([
253	#include <stdlib.h>
254	#include <sys/types.h>
255	#ifdef HAVE_STDINT_H
256	#include <stdint.h>
257	#endif
258	#ifdef HAVE_INTTYPES_H
259	#include <inttypes.h>
260	#endif], [
261	#undef $1
262	int a = sizeof($1);
263	], sh_cv_typedef=yes, sh_cv_typedef=no )])
264	AC_MSG_RESULT($sh_cv_typedef)
265	if test "$sh_cv_typedef" = yes; then
266	AC_DEFINE($2)
267	sh_$2=yes
268	else
269	sh_$2=no
270	fi
271	])
272
273
274
275	dnl **********************
276	dnl * va_copy checks *
277	dnl **********************
278	AC_DEFUN([SL_CHECK_VA_COPY],
279	[AC_MSG_CHECKING(for va_copy())
280	AC_CACHE_VAL(sh_cv_va_copy,[
281	AC_TRY_RUN([
282	#include <stdarg.h>
283	void f (int i, ...) {
284	va_list args1, args2;
285	va_start (args1, i);
286	va_copy (args2, args1);
287	if (va_arg (args2, int) != 42)
288	exit (1);
289	if (va_arg (args1, int) != 42)
290	exit (1);
291	va_end (args1); va_end (args2);
292	}
293	int main() {
294	f (0, 42);
295	return 0;
296	}],
297	sh_cv_va_copy=yes
298	,
299	sh_cv_va_copy=no
300	,
301	sh_cv_va_copy=no)
302	])
303	AC_MSG_RESULT($sh_cv_va_copy)
304	AC_MSG_CHECKING(for __va_copy())
305	AC_CACHE_VAL(sh_cv___va_copy,[
306	AC_TRY_RUN([
307	#include <stdarg.h>
308	void f (int i, ...) {
309	va_list args1, args2;
310	va_start (args1, i);
311	__va_copy (args2, args1);
312	if (va_arg (args2, int) != 42)
313	exit (1);
314	if (va_arg (args1, int) != 42)
315	exit (1);
316	va_end (args1); va_end (args2);
317	}
318	int main() {
319	f (0, 42);
320	return 0;
321	}],
322	sh_cv___va_copy=yes
323	,
324	sh_cv___va_copy=no
325	,
326	sh_cv___va_copy=no)
327	])
328	AC_MSG_RESULT($sh_cv___va_copy)
329	AC_MSG_CHECKING(whether va_lists can be copied by value)
330	AC_CACHE_VAL(sh_cv_va_val_copy,[
331	AC_TRY_RUN([
332	#include <stdarg.h>
333	void f (int i, ...) {
334	va_list args1, args2;
335	va_start (args1, i);
336	args2 = args1;
337	if (va_arg (args2, int) != 42)
338	exit (1);
339	if (va_arg (args1, int) != 42)
340	exit (1);
341	va_end (args1); va_end (args2);
342	}
343	int main() {
344	f (0, 42);
345	return 0;
346	}],
347	sh_cv_va_val_copy=yes
348	,
349	sh_cv_va_val_copy=no
350	,
351	sh_cv_va_val_copy=no)
352	])
353	if test "x$sh_cv_va_copy" = "xyes"; then
354	AC_DEFINE(VA_COPY, va_copy)
355	else if test "x$sh_cv___va_copy" = "xyes"; then
356	AC_DEFINE(VA_COPY, __va_copy)
357	fi
358	fi
359	if test "x$sh_cv_va_val_copy" = "xno"; then
360	AC_DEFINE(VA_COPY_AS_ARRAY)
361	fi
362	AC_MSG_RESULT($sh_cv_va_val_copy)
363	])
364
365
366	dnl SH_INIT_PARSE_ARGS()
367	m4_define([SH_INIT_PARSE_ARGS],
368	[
369	m4_divert_push([PARSE_ARGS])dnl
370
371	as_cr_letters='abcdefghijklmnopqrstuvwxyz'
372	as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
373	as_cr_Letters=$as_cr_letters$as_cr_LETTERS
374	as_cr_digits='0123456789'
375	as_cr_alnum=$as_cr_Letters$as_cr_digits
376
377	# Sed expression to map a string onto a valid CPP name.
378	as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[[^_$as_cr_alnum]]%_%g"
379
380	as_tr_sh="eval sed 'y%*+%pp%;s%[[^_$as_cr_alnum]]%_%g'"
381	# IFS
382	# We need space, tab and new line, in precisely that order.
383	as_nl='
384	'
385	IFS=" $as_nl"
386
387	# CDPATH.
388	$as_unset CDPATH \|\| test "${CDPATH+set}" != set \|\| { CDPATH=$PATH_SEPARATOR; export CDPATH; }
389
390
391	# Initialize some variables set by options.
392	ac_init_help=
393	ac_init_version=false
394	# The variables have the same names as the options, with
395	# dashes changed to underlines.
396	cache_file=/dev/null
397	AC_SUBST(exec_prefix, NONE)dnl
398	no_create=
399	no_recursion=
400	AC_SUBST(prefix, NONE)dnl
401	program_prefix=NONE
402	program_suffix=NONE
403	AC_SUBST(program_transform_name, [s,x,x,])dnl
404	silent=
405	site=
406	srcdir=
407	verbose=
408	x_includes=NONE
409	x_libraries=NONE
410	DESTDIR=
411	SH_ENABLE_OPTS="asm ssp db-reload xml-log message-queue login-watch process-check port-check mounts-check logfile-monitor userfiles debug ptrace static network udp nocl stealth micro-stealth install-name identity khide suidcheck base largefile mail external-scripts encrypt srp dnmalloc ipv6 shellexpand suid"
412	SH_WITH_OPTS="prelude libprelude-prefix database libwrap cflags libs console altconsole timeserver alttimeserver rnd egd-socket port logserver altlogserver kcheck gpg keyid checksum fp recipient sender trusted tmp-dir config-file log-file pid-file state-dir data-file html-file"
413
414	# Installation directory options.
415	# These are left unexpanded so users can "make install exec_prefix=/foo"
416	# and all the variables that are supposed to be based on exec_prefix
417	# by default will actually change.
418	dnl Use braces instead of parens because sh, perl, etc. also accept them.
419	sbindir='${exec_prefix}/sbin'
420	sysconfdir='${prefix}/etc'
421	localstatedir='${prefix}/var'
422	mandir='${prefix}/share/man'
423
424	AC_SUBST([sbindir], ['${exec_prefix}/sbin'])dnl
425	AC_SUBST([sysconfdir], ['${prefix}/etc'])dnl
426	AC_SUBST([localstatedir], ['${prefix}/var'])dnl
427	AC_SUBST([mandir], ['${prefix}/share/man'])dnl
428
429
430	# Initialize some other variables.
431	subdirs=
432	MFLAGS= MAKEFLAGS=
433	SHELL=${CONFIG_SHELL-/bin/sh}
434	# Maximum number of lines to put in a shell here document.
435	ac_max_here_lines=12
436
437	ac_prev=
438	for ac_option
439	do
440
441	# If the previous option needs an argument, assign it.
442	if test -n "$ac_prev"; then
443	eval "$ac_prev=\$ac_option"
444	ac_prev=
445	continue
446	fi
447
448	case "$ac_option" in
449	changequote(, )dnl
450	=) ac_optarg=`echo "$ac_option" \| sed 's/[-_a-zA-Z0-9]*=//'` ;;
451	changequote([, ])dnl
452	*) ac_optarg= ;;
453	esac
454
455	# Accept the important Cygnus configure options, so we can diagnose typos.
456
457	case "$ac_option" in
458
459	-build \| --build \| --buil \| --bui \| --bu)
460	ac_prev=build_alias ;;
461	-build=* \| --build=* \| --buil=* \| --bui=* \| --bu=*)
462	build_alias="$ac_optarg" ;;
463
464	-cache-file \| --cache-file \| --cache-fil \| --cache-fi \
465	\| --cache-f \| --cache- \| --cache \| --cach \| --cac \| --ca \| --c)
466	ac_prev=cache_file ;;
467	-cache-file=* \| --cache-file=* \| --cache-fil=* \| --cache-fi=* \
468	\| --cache-f=* \| --cache-=* \| --cache=* \| --cach=* \| --cac=* \| --ca=* \| --c=*)
469	cache_file="$ac_optarg" ;;
470
471	--config-cache \| -C)
472	cache_file=config.cache ;;
473
474	-disable-* \| --disable-*)
475	ac_feature=`expr "x$ac_option" : 'x-disable-\(.\)'`
476	# Reject names that are not valid shell variable names.
477	expr "x$ac_feature" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
478	AC_MSG_ERROR([invalid feature name: $ac_feature])
479	ac_feature=`echo $ac_feature \| sed 's/-/_/g'`
480	ac_enable_check_opt=no
481	for f in ${SH_ENABLE_OPTS}
482	do
483	f=`echo $f \| sed 's/-/_/g'`
484	if test x${f} = x"${ac_feature}"
485	then
486	ac_enable_check_opt=yes
487	fi
488	done
489	if test x${ac_enable_check_opt} = xno
490	then
491	AC_MSG_ERROR([unrecognized option: $ac_option
492	Try `$[0] --help' for more information.])
493	fi
494	eval "enable_$ac_feature=no" ;;
495
496	-enable-* \| --enable-*)
497	ac_feature=`expr "x$ac_option" : 'x-enable-\([[^=]]\)'`
498	# Reject names that are not valid shell variable names.
499	expr "x$ac_feature" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
500	AC_MSG_ERROR([invalid feature name: $ac_feature])
501	ac_feature=`echo $ac_feature \| sed 's/-/_/g'`
502	case $ac_option in
503	=) ac_optarg=`echo "$ac_optarg" \| sed "s/'/'\\\\\\\\''/g"`;;
504	*) ac_optarg=yes ;;
505	esac
506	ac_enable_check_opt=no
507	for f in ${SH_ENABLE_OPTS}
508	do
509	f=`echo $f \| sed 's/-/_/g'`
510	if test x${f} = x"${ac_feature}"
511	then
512	ac_enable_check_opt=yes
513	fi
514	done
515	if test x${ac_enable_check_opt} = xno
516	then
517	AC_MSG_ERROR([unrecognized option: $ac_option
518	Try `$[0] --help' for more information.])
519	fi
520	eval "enable_$ac_feature='$ac_optarg'" ;;
521
522	-exec-prefix \| --exec_prefix \| --exec-prefix \| --exec-prefi \
523	\| --exec-pref \| --exec-pre \| --exec-pr \| --exec-p \| --exec- \
524	\| --exec \| --exe \| --ex)
525	ac_prev=exec_prefix
526	ac_exec_prefix_set="yes"
527	;;
528	-exec-prefix=* \| --exec_prefix=* \| --exec-prefix=* \| --exec-prefi=* \
529	\| --exec-pref=* \| --exec-pre=* \| --exec-pr=* \| --exec-p=* \| --exec-=* \
530	\| --exec=* \| --exe=* \| --ex=*)
531	exec_prefix="$ac_optarg"
532	ac_exec_prefix_set="yes"
533	;;
534
535	-gas \| --gas \| --ga \| --g)
536	# Obsolete; use --with-gas.
537	with_gas=yes ;;
538
539	-help \| --help \| --hel \| --he \| -h)
540	ac_init_help=long ;;
541	-help=r* \| --help=r* \| --hel=r* \| --he=r* \| -hr*)
542	ac_init_help=recursive ;;
543	-help=s* \| --help=s* \| --hel=s* \| --he=s* \| -hs*)
544	ac_init_help=short ;;
545
546	-host \| --host \| --hos \| --ho)
547	ac_prev=host_alias ;;
548	-host=* \| --host=* \| --hos=* \| --ho=*)
549	host_alias="$ac_optarg" ;;
550
551	-localstatedir \| --localstatedir \| --localstatedi \| --localstated \
552	\| --localstate \| --localstat \| --localsta \| --localst \
553	\| --locals \| --local \| --loca \| --loc \| --lo)
554	ac_prev=localstatedir
555	ac_localstatedir_set="yes"
556	;;
557	-localstatedir=* \| --localstatedir=* \| --localstatedi=* \| --localstated=* \
558	\| --localstate=* \| --localstat=* \| --localsta=* \| --localst=* \
559	\| --locals=* \| --local=* \| --loca=* \| --loc=* \| --lo=*)
560	localstatedir="$ac_optarg"
561	ac_localstatedir_set="yes"
562	;;
563
564	-mandir \| --mandir \| --mandi \| --mand \| --man \| --ma \| --m)
565	ac_prev=mandir
566	ac_mandir_set="yes"
567	;;
568	-mandir=* \| --mandir=* \| --mandi=* \| --mand=* \| --man=* \| --ma=* \| --m=*)
569	mandir="$ac_optarg"
570	ac_mandir_set="yes"
571	;;
572
573	-nfp \| --nfp \| --nf)
574	# Obsolete; use --without-fp.
575	with_fp=no ;;
576
577	-no-create \| --no-create \| --no-creat \| --no-crea \| --no-cre \
578	\| --no-cr \| --no-c \| -n)
579	no_create=yes ;;
580
581	-no-recursion \| --no-recursion \| --no-recursio \| --no-recursi \
582	\| --no-recurs \| --no-recur \| --no-recu \| --no-rec \| --no-re \| --no-r)
583	no_recursion=yes ;;
584
585	-prefix \| --prefix \| --prefi \| --pref \| --pre \| --pr \| --p)
586	ac_prev=prefix
587	ac_prefix_set="yes"
588	;;
589	-prefix=* \| --prefix=* \| --prefi=* \| --pref=* \| --pre=* \| --pr=* \| --p=*)
590	prefix="$ac_optarg"
591	ac_prefix_set="yes"
592	;;
593
594	-q \| -quiet \| --quiet \| --quie \| --qui \| --qu \| --q \
595	\| -silent \| --silent \| --silen \| --sile \| --sil)
596	silent=yes ;;
597
598	-sbindir \| --sbindir \| --sbindi \| --sbind \| --sbin \| --sbi \| --sb)
599	ac_prev=sbindir
600	ac_sbindir_set="yes"
601	;;
602	-sbindir=* \| --sbindir=* \| --sbindi=* \| --sbind=* \| --sbin=* \
603	\| --sbi=* \| --sb=*)
604	sbindir="$ac_optarg"
605	ac_sbindir_set="yes"
606	;;
607
608	-bindir \| --bindir \| --bindi \| --bind \| --bin \| --bi \| --b)
609	echo "WARNING: bindir will be ignored, use sbindir"
610	;;
611	-bindir=* \| --bindir=* \| --bindi=* \| --bind=* \| --bin=* \
612	\| --bi=* \| --b=*)
613	echo "WARNING: bindir will be ignored, use sbindir"
614	;;
615
616	-datadir \| --datadir)
617	echo "WARNING: datadir will be ignored"
618	;;
619	-datadir=* \| --datadir=*)
620	echo "WARNING: datadir will be ignored"
621	;;
622
623	-includedir \| --includedir)
624	echo "WARNING: includedir will be ignored"
625	;;
626	-includedir=* \| --includedir=*)
627	echo "WARNING: includedir will be ignored"
628	;;
629
630	-infodir \| --infodir)
631	echo "WARNING: infodir will be ignored"
632	;;
633	-infodir=* \| --infodir=*)
634	echo "WARNING: infodir will be ignored"
635	;;
636
637	-libdir \| --libdir)
638	echo "WARNING: libdir will be ignored"
639	;;
640	-libdir=* \| --libdir=*)
641	echo "WARNING: libdir will be ignored"
642	;;
643
644	-libexecdir \| --libexecdir)
645	echo "WARNING: libexecdir will be ignored"
646	;;
647	-libexecdir=* \| --libexecdir=*)
648	echo "WARNING: libexecdir will be ignored"
649	;;
650
651	-sharedstatedir \| --sharedstatedir)
652	echo "WARNING: sharedstatedir will be ignored"
653	;;
654	-sharedstatedir=* \| --sharedstatedir=*)
655	echo "WARNING: sharedstatedir will be ignored"
656	;;
657
658	-site \| --site \| --sit)
659	ac_prev=site ;;
660	-site=* \| --site=* \| --sit=*)
661	site="$ac_optarg" ;;
662
663	-srcdir \| --srcdir \| --srcdi \| --srcd \| --src \| --sr)
664	ac_prev=srcdir ;;
665	-srcdir=* \| --srcdir=* \| --srcdi=* \| --srcd=* \| --src=* \| --sr=*)
666	srcdir="$ac_optarg" ;;
667
668	-sysconfdir \| --sysconfdir \| --sysconfdi \| --sysconfd \| --sysconf \
669	\| --syscon \| --sysco \| --sysc \| --sys \| --sy)
670	ac_prev=sysconfdir
671	ac_sysconfdir_set="yes"
672	;;
673	-sysconfdir=* \| --sysconfdir=* \| --sysconfdi=* \| --sysconfd=* \| --sysconf=* \
674	\| --syscon=* \| --sysco=* \| --sysc=* \| --sys=* \| --sy=*)
675	sysconfdir="$ac_optarg"
676	ac_sysconfdir_set="yes"
677	;;
678
679	-target \| --target \| --targe \| --targ \| --tar \| --ta \| --t)
680	ac_prev=target_alias ;;
681	-target=* \| --target=* \| --targe=* \| --targ=* \| --tar=* \| --ta=* \| --t=*)
682	target_alias="$ac_optarg" ;;
683
684	-v \| -verbose \| --verbose \| --verbos \| --verbo \| --verb)
685	verbose=yes ;;
686
687	-version \| --version \| --versio \| --versi \| --vers)
688	ac_init_version=: ;;
689
690
691	-with-* \| --with-*)
692	ac_package=`expr "x$ac_option" : 'x-with-\([[^=]]\)'`
693	# Reject names that are not valid shell variable names.
694	expr "x$ac_package" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
695	AC_MSG_ERROR([invalid package name: $ac_package])
696	ac_package=`echo $ac_package\| sed 's/-/_/g'`
697	case $ac_option in
698	=) ac_optarg=`echo "$ac_optarg" \| sed "s/'/'\\\\\\\\''/g"`;;
699	*) ac_optarg=yes ;;
700	esac
701	ac_with_check_opt=no
702	for f in ${SH_WITH_OPTS}
703	do
704	f=`echo $f \| sed 's/-/_/g'`
705	if test x${f} = x"${ac_package}"
706	then
707	ac_with_check_opt=yes
708	fi
709	done
710	if test x${ac_with_check_opt} = xno
711	then
712	AC_MSG_ERROR([unrecognized option: $ac_option
713	Try `$[0] --help' for more information.])
714	fi
715	eval "with_$ac_package='$ac_optarg'" ;;
716
717	-without-* \| --without-*)
718	ac_package=`expr "x$ac_option" : 'x-without-\(.\)'`
719	# Reject names that are not valid shell variable names.
720	expr "x$ac_package" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
721	AC_MSG_ERROR([invalid package name: $ac_package])
722	ac_package=`echo $ac_package \| sed 's/-/_/g'`
723	ac_with_check_opt=no
724	for f in ${SH_WITH_OPTS}
725	do
726	f=`echo $f \| sed 's/-/_/g'`
727	if test x${f} = x"${ac_package}"
728	then
729	ac_with_check_opt=yes
730	fi
731	done
732	if test x${ac_with_check_opt} = xno
733	then
734	AC_MSG_ERROR([unrecognized option: $ac_option
735	Try `$[0] --help' for more information.])
736	fi
737	eval "with_$ac_package=no" ;;
738
739
740	-*) AC_MSG_ERROR([unrecognized option: $ac_option
741	Try `$[0] --help' for more information.])
742	;;
743
744	=)
745	ac_envvar=`expr "x$ac_option" : 'x\([[^=]]*\)='`
746	# Reject names that are not valid shell variable names.
747	expr "x$ac_envvar" : "[.*[^_$as_cr_alnum]]" >/dev/null &&
748	AC_MSG_ERROR([invalid variable name: $ac_envvar])
749	ac_optarg=`echo "$ac_optarg" \| sed "s/'/'\\\\\\\\''/g"`
750	eval "$ac_envvar='$ac_optarg'"
751	export $ac_envvar ;;
752
753	*)
754	# FIXME: should be removed in autoconf 3.0.
755	AC_MSG_WARN([you should use --build, --host, --target])
756	expr "x$ac_option" : "[.*[^-._$as_cr_alnum]]" >/dev/null &&
757	AC_MSG_WARN([invalid host type: $ac_option])
758	: ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
759	;;
760
761
762	esac
763	done
764
765	if test -n "$ac_prev"; then
766	AC_MSG_ERROR(missing argument to --`echo $ac_prev \| sed 's/_/-/g'`)
767	fi
768
769	# Be sure to have absolute paths.
770	for ac_var in prefix exec_prefix
771	do
772	eval ac_val=$`echo $ac_var`
773	case $ac_val in
774	[[\\/$]]* \| ?:[[\\/]]* \| NONE \| '' \| OPT \| USR ) ;;
775	*) AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val]);;
776	esac
777	done
778
779	# Be sure to have absolute paths.
780	for ac_var in sbindir sysconfdir localstatedir mandir
781	do
782	eval ac_val=$`echo $ac_var`
783	case $ac_val in
784	[[\\/$]]* \| ?:[[\\/]]* ) ;;
785	*) AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val]);;
786	esac
787	done
788
789	# There might be people who depend on the old broken behavior: `$host'
790	# used to hold the argument of --host etc.
791	# FIXME: To remove some day.
792	build=$build_alias
793	host=$host_alias
794	target=$target_alias
795
796	# FIXME: To remove some day.
797	if test "x$host_alias" != x; then
798	if test "x$build_alias" = x; then
799	cross_compiling=maybe
800	AC_MSG_WARN([If you wanted to set the --build type, don't use --host.
801	If a cross compiler is detected then cross compile mode will be used.])
802	elif test "x$build_alias" != "x$host_alias"; then
803	cross_compiling=yes
804	fi
805	fi
806
807	ac_tool_prefix=
808	test -n "$host_alias" && ac_tool_prefix=$host_alias-
809
810	test "$silent" = yes && exec AS_MESSAGE_FD>/dev/null
811
812	m4_divert_pop([PARSE_ARGS])dnl
813	])# SH_INIT_PARSE_ARGS
814
815	m4_define([SH_INIT_HELP],
816	[m4_divert_push([HELP_BEGIN])dnl
817
818	#
819	# Report the --help message.
820	#
821	if test "$ac_init_help" = "long"; then
822	# Omit some internal or obsolete options to make the list less imposing.
823	# This message is too long to be a string in the A/UX 3.1 sh.
824	cat <<_ACEOF
825	\`configure' configures m4_ifset([AC_PACKAGE_STRING],
826	[AC_PACKAGE_STRING],
827	[this package]) to adapt to many kinds of systems.
828
829	Usage: $[0] [[OPTION]]... [[VAR=VALUE]]...
830
831	[To assign environment variables (e.g., CC, CFLAGS...), specify them as
832	VAR=VALUE. See below for descriptions of some of the useful variables.
833
834	Defaults for the options are specified in brackets.
835
836	Configuration:
837	-h, --help display this help and exit
838	--help=short display options specific to this package
839	--help=recursive display the short help of all the included packages
840	-V, --version display version information and exit
841	-q, --quiet, --silent do not print \`checking...' messages
842	--cache-file=FILE cache test results in FILE [disabled]
843	-C, --config-cache alias for \`--cache-file=config.cache'
844	-n, --no-create do not create output files
845	--srcdir=DIR find the sources in DIR [configure dir or \`..']
846
847	_ACEOF
848
849	cat <<_ACEOF
850	Installation directories:
851	--prefix=PREFIX install architecture-independent files in PREFIX
852	[$ac_default_prefix]
853	--exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
854	[PREFIX]
855
856	By default, \`make install' will install binaries in \`/usr/local/sbin',
857	the config file in \`/etc', manpage in \`/usr/local/share/man', and state
858	data in \`/var/lib/INSTALL_NAME' (FSH layout). You can specify other
859	FSH compliant layouts with \`--prefix=OPT' or \`--prefix=USR', or you
860	can specify a directory with \`--prefix=DIR' to install in \`DIR/sbin',
861	\`DIR/etc', etc.
862
863	For better control, use the options below.
864
865	Fine tuning of the installation directories:
866	--sbindir=DIR system admin executables [EPREFIX/sbin]
867	--sysconfdir=DIR read-only single-machine data [PREFIX/etc]
868	--localstatedir=DIR modifiable single-machine data [PREFIX/var]
869	--mandir=DIR man documentation [PREFIX/man]
870
871	For even finer tuning, paths can be specified for individual files (see below)
872
873	_ACEOF
874
875	cat <<\_ACEOF]
876	m4_divert_pop([HELP_BEGIN])dnl
877	dnl The order of the diversions here is
878	dnl - HELP_BEGIN
879	dnl which may be prolongated by extra generic options such as with X or
880	dnl AC_ARG_PROGRAM. Displayed only in long --help.
881	dnl
882	dnl - HELP_CANON
883	dnl Support for cross compilation (--build, --host and --target).
884	dnl Display only in long --help.
885	dnl
886	dnl - HELP_ENABLE
887	dnl which starts with the trailer of the HELP_BEGIN, HELP_CANON section,
888	dnl then implements the header of the non generic options.
889	dnl
890	dnl - HELP_WITH
891	dnl
892	dnl - HELP_VAR
893	dnl
894	dnl - HELP_VAR_END
895	dnl
896	dnl - HELP_END
897	dnl initialized below, in which we dump the trailer (handling of the
898	dnl recursion for instance).
899	m4_divert_push([HELP_ENABLE])dnl
900	_ACEOF
901	fi
902
903	if test -n "$ac_init_help"; then
904	m4_ifset([AC_PACKAGE_STRING],
905	[ case $ac_init_help in
906	short \| recursive ) echo "Configuration of AC_PACKAGE_STRING:";;
907	esac])
908	cat <<\_ACEOF
909	m4_divert_pop([HELP_ENABLE])dnl
910	m4_divert_push([HELP_END])dnl
911	m4_ifset([AC_PACKAGE_BUGREPORT], [
912	Report bugs to <AC_PACKAGE_BUGREPORT>.])
913	_ACEOF
914	fi
915
916	if test "$ac_init_help" = "recursive"; then
917	# If there are subdirs, report their specific --help.
918	ac_popdir=`pwd`
919	for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
920	test -d $ac_dir \|\| continue
921	_AC_SRCPATHS(["$ac_dir"])
922	cd $ac_dir
923	# Check for guested configure; otherwise get Cygnus style configure.
924	if test -f $ac_srcdir/configure.gnu; then
925	echo
926	$SHELL $ac_srcdir/configure.gnu --help=recursive
927	elif test -f $ac_srcdir/configure; then
928	echo
929	$SHELL $ac_srcdir/configure --help=recursive
930	elif test -f $ac_srcdir/configure.ac \|\|
931	test -f $ac_srcdir/configure.in; then
932	echo
933	$ac_configure --help
934	else
935	AC_MSG_WARN([no configuration information is in $ac_dir])
936	fi
937	cd $ac_popdir
938	done
939	fi
940
941	test -n "$ac_init_help" && exit 0
942	m4_divert_pop([HELP_END])dnl
943	])# SH_INIT_HELP
944
945
946
947
948
949
950
951
952	# Check whether sa_sigaction works.
953	# Rainer Wichmann <support@la-samhna.de>, 2003.
954	#
955	# This file can be copied and used freely without restrictions. It can
956	# be used in projects which are not available under the GNU Public License.
957
958	# serial 1
959
960	AC_DEFUN([AM_SA_SIGACTION_WORKS],
961	[
962	am_cv_val_SA_SIGACTION=no
963	AC_CHECK_HEADER(signal.h,
964	[
965	AM_SI_USER
966	AM_SA_SIGINFO
967	if test $am_cv_val_SI_USER = yes && test $am_cv_val_SA_SIGINFO = yes
968	then
969	AC_TRY_RUN([
970	#include <signal.h>
971	#include <setjmp.h>
972	#include <stdio.h>
973	#include <stdlib.h>
974
975	volatile int xnum = 0;
976	volatile int xcode = 0;
977	jmp_buf Buf;
978	int xsig = SIGSEGV;
979
980	void sighandler (int xsignam, siginfo_t * xsiginfo, void * xsigadd)
981	{
982	static sigset_t x;
983
984	if (xsiginfo == NULL)
985	exit(__LINE__);
986	if (xsiginfo->si_signo != xsignam)
987	exit(__LINE__);
988	++xnum;
989	xcode = xsiginfo->si_code;
990	sigemptyset (&x);
991	sigprocmask(SIG_SETMASK, &x, NULL);
992	longjmp ( Buf, 1);
993	}
994
995	int main ()
996	{
997	struct sigaction newact;
998
999	newact.sa_sigaction = sighandler;
1000	sigemptyset (&newact.sa_mask);
1001	newact.sa_flags = SA_SIGINFO;
1002	if (0 != sigaction (xsig, &newact, NULL))
1003	exit (__LINE__);
1004	if(setjmp ( Buf)) {
1005	if (xnum > 1)
1006	goto Third;
1007	goto Second;
1008	}
1009	memcpy((void *) 0x0, "test", 5);
1010	Second:
1011	if (xcode == SI_USER)
1012	exit (__LINE__);
1013	raise(xsig);
1014	Third:
1015	if (xcode != SI_USER)
1016	exit (__LINE__);
1017	if (xnum != 2)
1018	exit (__LINE__);
1019	return (0);
1020	}], am_cv_val_SA_SIGACTION=yes, am_cv_val_SA_SIGACTION=no, am_cv_val_SA_SIGACTION=no)
1021	fi
1022	])
1023	AC_MSG_CHECKING([whether sa_sigaction is supported])
1024	if test $am_cv_val_SA_SIGACTION = yes
1025	then
1026	AC_MSG_RESULT(yes)
1027	AC_DEFINE([SA_SIGACTION_WORKS], 1, [Define if sa_sigaction works])
1028	else
1029	AC_MSG_RESULT(no)
1030	fi
1031	])
1032
1033	# Check whether SI_USER is available in <signal.h>.
1034	# Rainer Wichmann <support@la-samhna.de>, 2003.
1035	#
1036	# This file can be copied and used freely without restrictions. It can
1037	# be used in projects which are not available under the GNU Public License.
1038
1039	# serial 1
1040
1041
1042	AC_DEFUN([AM_SI_USER],
1043	[if test $ac_cv_header_signal_h = yes; then
1044	AC_CACHE_CHECK([for SI_USER in signal.h], am_cv_val_SI_USER,
1045	[AC_TRY_LINK([#include <signal.h>], [return SI_USER],
1046	am_cv_val_SI_USER=yes, am_cv_val_SI_USER=no)])
1047	if test $am_cv_val_SI_USER = yes; then
1048	AC_DEFINE([HAVE_SI_USER], 1, [Define if you have SI_USER])
1049	fi
1050	fi])
1051
1052	# Check whether SA_SIGINFO is available in <signal.h>.
1053	# Rainer Wichmann <support@la-samhna.de>, 2003.
1054	#
1055	# This file can be copied and used freely without restrictions. It can
1056	# be used in projects which are not available under the GNU Public License.
1057
1058	# serial 1
1059
1060
1061	AC_DEFUN([AM_SA_SIGINFO],
1062	[if test $ac_cv_header_signal_h = yes; then
1063	AC_CACHE_CHECK([for SA_SIGINFO in signal.h], am_cv_val_SA_SIGINFO,
1064	[AC_TRY_LINK([#include <signal.h>], [return SA_SIGINFO],
1065	am_cv_val_SA_SIGINFO=yes, am_cv_val_SA_SIGINFO=no)])
1066	if test $am_cv_val_SA_SIGINFO = yes; then
1067	AC_DEFINE([HAVE_SA_SIGINFO], 1, [Define if you have SA_SIGINFO])
1068	fi
1069	fi])
1070
1071	dnl
1072	dnl Useful macros for autoconf to check for ssp-patched gcc
1073	dnl 1.0 - September 2003 - Tiago Sousa <mirage@kaotik.org>
1074	dnl 1.1 - August 2006 - Ted Percival <ted@midg3t.net>
1075	dnl * Stricter language checking (C or C++)
1076	dnl * Adds GCC_STACK_PROTECT_LIB to add -lssp to LDFLAGS as necessary
1077	dnl * Caches all results
1078	dnl * Uses macros to ensure correct ouput in quiet/silent mode
1079	dnl 1.2 - April 2007 - Ted Percival <ted@midg3t.net>
1080	dnl * Added GCC_STACK_PROTECTOR macro for simpler (one-line) invocation
1081	dnl * GCC_STACK_PROTECT_LIB now adds -lssp to LIBS rather than LDFLAGS
1082	dnl
1083	dnl About ssp:
1084	dnl GCC extension for protecting applications from stack-smashing attacks
1085	dnl http://www.research.ibm.com/trl/projects/security/ssp/
1086	dnl
1087	dnl Usage:
1088	dnl Most people will simply call GCC_STACK_PROTECTOR.
1089	dnl If you only use one of C or C++, you can save time by only calling the
1090	dnl macro appropriate for that language. In that case you should also call
1091	dnl GCC_STACK_PROTECT_LIB first.
1092	dnl
1093	dnl GCC_STACK_PROTECTOR
1094	dnl Tries to turn on stack protection for C and C++ by calling the following
1095	dnl three macros with the right languages.
1096	dnl
1097	dnl GCC_STACK_PROTECT_CC
1098	dnl checks -fstack-protector with the C compiler, if it exists then updates
1099	dnl CFLAGS and defines ENABLE_SSP_CC
1100	dnl
1101	dnl GCC_STACK_PROTECT_CXX
1102	dnl checks -fstack-protector with the C++ compiler, if it exists then updates
1103	dnl CXXFLAGS and defines ENABLE_SSP_CXX
1104	dnl
1105	dnl GCC_STACK_PROTECT_LIB
1106	dnl adds -lssp to LIBS if it is available
1107	dnl ssp is usually provided as part of libc, but was previously a separate lib
1108	dnl It does not hurt to add -lssp even if libc provides SSP - in that case
1109	dnl libssp will simply be ignored.
1110	dnl
1111
1112	AC_DEFUN([GCC_STACK_PROTECT_LIB],[
1113	AC_CACHE_CHECK([whether libssp exists], ssp_cv_lib,
1114	[ssp_old_libs="$LIBS"
1115	LIBS="$LIBS -lssp"
1116	AC_TRY_LINK(,, ssp_cv_lib=yes, ssp_cv_lib=no)
1117	LIBS="$ssp_old_libs"
1118	])
1119	if test $ssp_cv_lib = yes; then
1120	LIBS="$LIBS -lssp"
1121	fi
1122	])
1123
1124	AC_DEFUN([GCC_STACK_PROTECT_CC],[
1125	AC_LANG_ASSERT(C)
1126	if test "X$CC" != "X"; then
1127	AC_CACHE_CHECK([whether ${CC} accepts -fstack-protector-all],
1128	ssp_cv_cc,
1129	[ssp_old_cflags="$CFLAGS"
1130	CFLAGS="$CFLAGS -fstack-protector-all"
1131	AC_TRY_COMPILE(,, ssp_cv_cc=yes, ssp_cv_cc=no)
1132	CFLAGS="$ssp_old_cflags"
1133	])
1134	if test $ssp_cv_cc = no; then
1135	AC_CACHE_CHECK([whether ${CC} accepts -fstack-protector],
1136	ssp_cv_cc,
1137	[ssp_old_cflags="$CFLAGS"
1138	CFLAGS="$CFLAGS -fstack-protector"
1139	AC_TRY_COMPILE(,, ssp_cv_cc=yes, ssp_cv_cc=no)
1140	CFLAGS="$ssp_old_cflags"
1141	])
1142	if test $ssp_cv_cc = yes; then
1143	CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector"
1144	LDFLAGS="$LDFLAGS -fstack-protector"
1145	AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])
1146	fi
1147	else
1148	if test $ssp_cv_cc = yes; then
1149	CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector-all"
1150	LDFLAGS="$LDFLAGS -fstack-protector-all"
1151	AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])
1152	fi
1153	fi
1154	fi
1155	])
1156
1157	AC_DEFUN([GCC_STACK_PROTECT_CXX],[
1158	AC_LANG_ASSERT(C++)
1159	if test "X$CXX" != "X"; then
1160	AC_CACHE_CHECK([whether ${CXX} accepts -fstack-protector],
1161	ssp_cv_cxx,
1162	[ssp_old_cxxflags="$CXXFLAGS"
1163	CXXFLAGS="$CXXFLAGS -fstack-protector"
1164	AC_TRY_COMPILE(,, ssp_cv_cxx=yes, ssp_cv_cxx=no)
1165	CXXFLAGS="$ssp_old_cxxflags"
1166	])
1167	if test $ssp_cv_cxx = yes; then
1168	CXXFLAGS="$CXXFLAGS -fstack-protector"
1169	AC_DEFINE([ENABLE_SSP_CXX], 1, [Define if SSP C++ support is enabled.])
1170	fi
1171	fi
1172	])
1173
1174	AC_DEFUN([GCC_STACK_PROTECTOR],[
1175	GCC_STACK_PROTECT_LIB
1176
1177	AC_LANG_PUSH([C])
1178	GCC_STACK_PROTECT_CC
1179	AC_LANG_POP([C])
1180
1181	AC_LANG_PUSH([C++])
1182	GCC_STACK_PROTECT_CXX
1183	AC_LANG_POP([C++])
1184	])
1185
1186
1187	AC_DEFUN([GCC_PIE_CC],[
1188	AC_LANG_ASSERT(C)
1189	if test "X$CC" != "X"; then
1190	AC_CACHE_CHECK([whether ${CC} accepts -pie -fPIE],
1191	pie_cv_cc,
1192	[pie_old_cflags="$CFLAGS"
1193	CFLAGS="$CFLAGS -pie -fPIE"
1194	AC_TRY_COMPILE(,, pie_cv_cc=yes, pie_cv_cc=no)
1195	CFLAGS="$pie_old_cflags"
1196	])
1197	if test $pie_cv_cc = yes; then
1198	case "$host_os" in
1199	cygwin)
1200	;;
1201	*)
1202	PIE_CFLAGS="-fPIE"
1203	PIE_LDFLAGS="-pie"
1204	;;
1205	esac
1206	fi
1207	fi
1208	])
1209
1210	AC_DEFUN([GCC_STACK_CHECK_CC],[
1211	AC_LANG_ASSERT(C)
1212	if test "X$CC" != "X"; then
1213	AC_CACHE_CHECK([whether ${CC} accepts -fstack-check],
1214	stackcheck_cv_cc,
1215	[stackcheck_old_cflags="$CFLAGS"
1216	CFLAGS="$CFLAGS -fstack-check"
1217	AC_TRY_COMPILE(,, stackcheck_cv_cc=yes, stackcheck_cv_cc=no)
1218	CFLAGS="$stackcheck_old_cflags"
1219	])
1220	if test $stackcheck_cv_cc = yes; then
1221	CFLAGS="$CFLAGS -fstack-check"
1222	fi
1223	fi
1224	])
1225
1226	AC_DEFUN([GCC_WEMPTY_BODY],[
1227	AC_LANG_ASSERT(C)
1228	if test "X$CC" != "X"; then
1229	AC_CACHE_CHECK([whether ${CC} accepts -Wno-empty-body],
1230	empty_cv_body,
1231	[empty_body_cflags="$CFLAGS"
1232	CFLAGS="$CFLAGS -Wno-empty-body"
1233	AC_TRY_COMPILE(,, empty_cv_body=yes, empty_cv_body=no)
1234	CFLAGS="$empty_body_cflags"
1235	])
1236	if test $empty_cv_body = yes; then
1237	CFLAGS="$CFLAGS -Wno-empty-body"
1238	fi
1239	fi
1240	])
1241
1242	AC_DEFUN([SAMHAIN_POSIX],[
1243	AC_MSG_CHECKING([whether _POSIX_SOURCE is necessary])
1244	AC_TRY_COMPILE([#include <stdio.h>
1245	void fileno(int);int fdopen(int, char *); ],,
1246	[
1247	AC_MSG_RESULT(yes)
1248	AC_DEFINE([_POSIX_SOURCE],1,[Define if POSIX functions are required])
1249	],
1250	[AC_MSG_RESULT(no)])
1251	])dnl
1252
1253	dnl checks for a known 64 bit programming environment
1254	dnl AC_RUN_IFELSE(PROGRAM,
1255	dnl [ACTION-IF-TRUE], [ACTION-IF-FALSE],
1256	dnl [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
1257	dnl
1258	AC_DEFUN([SAMHAIN_PRG_ENV],[
1259	AC_MSG_CHECKING([for a known 64 bit programming environment])
1260	# Compile and run a program that determines the programming environment
1261	AC_RUN_IFELSE([
1262	AC_LANG_SOURCE([[
1263	#include <stdio.h>
1264	int main(int argc,char **argv)
1265	{
1266	if (argc > 1) {
1267	#if defined(__arch64__)
1268	printf("__arch64__\n");
1269	#elif defined(__ia64__)
1270	printf("__ia64__\n");
1271	#elif defined(__x86_64__)
1272	printf("__x86_64__\n");
1273	#elif defined(__LP64__)
1274	printf("__LP64__\n");
1275	#elif defined(__64BIT__)
1276	printf("__64BIT__\n");
1277	#elif defined(_LP64)
1278	printf("_LP64\n");
1279	#elif defined(_M_IA64)
1280	printf("_M_IA64\n");
1281	#elif defined(_MIPS_SZLONG) && (_MIPS_SZLONG == 64)
1282	printf("_MIPS_64\n");
1283	#else
1284	choke me
1285	#endif
1286	}
1287	return 0;
1288	}
1289	]])
1290	],[
1291	# Program compiled and ran, so get version by adding argument.
1292	samhain_prg_ENV=`./conftest$ac_exeext x`
1293	samhain_64=yes
1294	AC_MSG_RESULT([$samhain_prg_ENV])
1295	],[
1296	AC_MSG_RESULT([none])
1297	],[
1298	AC_MSG_RESULT([none])
1299	])
1300	])dnl
1301
1302	AC_DEFUN([SAMHAIN_X86_64],[
1303	AC_MSG_CHECKING([for x86_64])
1304	AC_TRY_RUN([
1305	int main() {
1306	__asm__ volatile (
1307	"movq %rax, %rax"
1308	);
1309	return 0;
1310	}
1311	],
1312	[
1313	AC_MSG_RESULT(yes)
1314	samhain_64=yes
1315	tiger_src=sh_tiger1_64.c
1316	samhain_64_asm=yes
1317	],
1318	[
1319	AC_MSG_RESULT([no])
1320	],[
1321	AC_MSG_RESULT([no])
1322	])
1323	])dnl
1324
1325
1326	AC_DEFUN([SAMHAIN_64],[
1327	samhain_64=no
1328	tiger_src=sh_tiger1.c
1329	samhain_64_asm=no
1330	#
1331	# if sizeof(unsigned long) = 4, try compiler macros for 64bit
1332	#
1333	if test "x$ac_cv_sizeof_unsigned_long" = x4; then
1334	if test "x$ac_cv_sizeof_unsigned_long_long" = x8; then
1335	SAMHAIN_PRG_ENV
1336	if test "x$samhain_64" = xyes; then
1337	tiger_src=sh_tiger1_64.c
1338	fi
1339	#
1340	# if GCC and __i386__, use precompiled assembler
1341	#
1342	if test "x$GCC" = xyes; then
1343	AC_MSG_CHECKING([for non-apple non-cygwin i386])
1344	samhain_i386=no
1345	$CC -E -dM - < /dev/null \| egrep '__i386__' >/dev/null 2>&1
1346	if test $? = 0; then
1347	case "$host_os" in
1348	linux)
1349	# apples gcc does not understand the assembly we provide
1350	$CC -E -dM - < /dev/null \| egrep '(__sun__\|__APPLE__\|__CYGWIN__)' >/dev/null 2>&1 \|\| samhain_i386=yes
1351	;;
1352	*)
1353	;;
1354	esac
1355	fi
1356	AC_MSG_RESULT([$samhain_i386])
1357	if test "x$samhain_i386" = xyes; then
1358	GCC_PIE_CC
1359	if test $pie_cv_cc = yes; then
1360	tiger_src=sh_tiger1.s
1361	AC_DEFINE([TIGER_32_BIT_S],1,[Define to use tiger 32 bit i386 assembler])
1362	fi
1363	fi
1364	fi
1365	#
1366	#
1367	#
1368	else
1369	samhain_64=no
1370	tiger_src=sh_tiger1.c
1371	fi
1372	else
1373	#
1374	# sizeof(unsigned long) = 8
1375	#
1376	tiger_src=sh_tiger1_64.c
1377	samhain_64=yes
1378	#
1379	# check for x86_64 (enables assembly optimizations)
1380	#
1381	if test "x$GCC" = xyes; then
1382	case "$host_os" in
1383	linux)
1384	SAMHAIN_X86_64
1385	;;
1386	bsd)
1387	SAMHAIN_X86_64
1388	;;
1389	*)
1390	SAMHAIN_X86_64
1391	;;
1392	esac
1393	fi
1394	fi
1395	if test "x$samhain_64" = xyes; then
1396	AC_DEFINE([TIGER_64_BIT],1,[Define to use tiger 64 bit implementation])
1397	fi
1398	AC_MSG_CHECKING([for 64 bit environment])
1399	AC_MSG_RESULT([$samhain_64])
1400	AC_MSG_CHECKING([for tiger source to use])
1401	AC_MSG_RESULT([$tiger_src])
1402	AC_SUBST(tiger_src)
1403	])dnl
1404
1405	AC_DEFUN([sh_CHECK_POSIX_ACL],
1406	[
1407	AC_CHECK_HEADERS(sys/acl.h)
1408	if test $ac_cv_header_sys_acl_h = yes; then
1409
1410	AC_CHECK_LIB([acl], [acl_get_file], sh_lacl=yes, sh_lacl=no)
1411	if test x"$sh_lacl" = xyes; then
1412	LIBACL=-lacl
1413	else
1414	LIBACL=
1415	fi
1416
1417	OLDLIBS="$LIBS"
1418	LIBS="$LIBS $LIBACL"
1419	AC_CHECK_FUNCS([acl_free acl_get_file acl_get_fd],
1420	[sh_facl=yes],[sh_facl=no])
1421	LIBS="$OLDLIBS"
1422
1423	if test x"$sh_facl" = xyes; then
1424	AC_DEFINE(USE_ACL, 1, [Define if you want ACL support.])
1425	LIBS="$LIBS $LIBACL"
1426	fi
1427	fi
1428	])
1429
1430	AC_DEFUN([sh_CHECK_XATTR],
1431	[
1432	AC_CHECK_HEADERS(attr/xattr.h)
1433	if test $ac_cv_header_attr_xattr_h = yes; then
1434
1435	AC_CHECK_LIB([attr], [getxattr], sh_lattr=yes, sh_lattr=no)
1436	if test x"$sh_lattr" = xyes; then
1437	LIBATTR=-lattr
1438	else
1439	LIBATTR=
1440	fi
1441
1442	OLDLIBS="$LIBS"
1443	LIBS="$LIBS $LIBATTR"
1444	AC_CHECK_FUNCS([getxattr lgetxattr fgetxattr],
1445	[sh_fattr=yes],[sh_fattr=no])
1446	LIBS="$OLDLIBS"
1447
1448	if test x"$sh_fattr" = xyes; then
1449	AC_DEFINE(USE_XATTR, 1, [Define if you want extended attributes support.])
1450	LIBS="$LIBS $LIBATTR"
1451	fi
1452	fi
1453	])
1454
1455	dnl Autoconf macros for libprelude
1456	dnl $id$
1457
1458	# Modified for LIBPRELUDE -- Yoann Vandoorselaere
1459	# Modified for LIBGNUTLS -- nmav
1460	# Configure paths for LIBGCRYPT
1461	# Shamelessly stolen from the one of XDELTA by Owen Taylor
1462	# Werner Koch 99-12-09
1463
1464	dnl AM_PATH_LIBPRELUDE([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
1465	dnl Test for libprelude, and define LIBPRELUDE_PREFIX, LIBPRELUDE_CFLAGS, LIBPRELUDE_PTHREAD_CFLAGS,
1466	dnl LIBPRELUDE_LDFLAGS, and LIBPRELUDE_LIBS
1467	dnl
1468	AC_DEFUN([AM_PATH_LIBPRELUDE],
1469	[dnl
1470	dnl Get the cflags and libraries from the libprelude-config script
1471	dnl
1472	dnl AC_ARG_WITH(libprelude-prefix,
1473	dnl [ --with-libprelude-prefix=PFX Prefix where libprelude is installed (optional)],
1474	dnl libprelude_config_prefix="$withval", libprelude_config_prefix="")
1475	dnl
1476	dnl if test x$libprelude_config_prefix != x ; then
1477	dnl if test x${LIBPRELUDE_CONFIG+set} != xset ; then
1478	dnl LIBPRELUDE_CONFIG=$libprelude_config_prefix/bin/libprelude-config
1479	dnl fi
1480	dnl fi
1481	dnl
1482	dnl AC_PATH_PROG(LIBPRELUDE_CONFIG, libprelude-config, no)
1483	min_libprelude_version=ifelse([$1], ,0.1.0,$1)
1484	AC_MSG_CHECKING(for libprelude - version >= $min_libprelude_version)
1485	no_libprelude=""
1486	if test "$LIBPRELUDE_CONFIG" = "no" ; then
1487	no_libprelude=yes
1488	else
1489	LIBPRELUDE_CFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --cflags`
1490	LIBPRELUDE_PTHREAD_CFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --pthread-cflags`
1491	LIBPRELUDE_LDFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --ldflags`
1492	LIBPRELUDE_LIBS=`$LIBPRELUDE_CONFIG $libprelude_config_args --libs`
1493	LIBPRELUDE_PREFIX=`$LIBPRELUDE_CONFIG $libprelude_config_args --prefix`
1494	LIBPRELUDE_CONFIG_PREFIX=`$LIBPRELUDE_CONFIG $libprelude_config_args --config-prefix`
1495	libprelude_config_version=`$LIBPRELUDE_CONFIG $libprelude_config_args --version`
1496
1497
1498	ac_save_CFLAGS="$CFLAGS"
1499	ac_save_LDFLAGS="$LDFLAGS"
1500	ac_save_LIBS="$LIBS"
1501	CFLAGS="$CFLAGS $LIBPRELUDE_CFLAGS"
1502	LDFLAGS="$LDFLAGS $LIBPRELUDE_LDFLAGS"
1503	LIBS="$LIBS $LIBPRELUDE_LIBS"
1504	dnl
1505	dnl Now check if the installed libprelude is sufficiently new. Also sanity
1506	dnl checks the results of libprelude-config to some extent
1507	dnl
1508	rm -f conf.libpreludetest
1509	AC_TRY_RUN([
1510	#include <stdio.h>
1511	#include <stdlib.h>
1512	#include <string.h>
1513	#include <libprelude/prelude.h>
1514
1515	int
1516	main ()
1517	{
1518	system ("touch conf.libpreludetest");
1519
1520	if( strcmp( prelude_check_version(NULL), "$libprelude_config_version" ) )
1521	{
1522	printf("\n*** 'libprelude-config --version' returned %s, but LIBPRELUDE (%s)\n",
1523	"$libprelude_config_version", prelude_check_version(NULL) );
1524	printf("*** was found! If libprelude-config was correct, then it is best\n");
1525	printf("*** to remove the old version of LIBPRELUDE. You may also be able to fix the error\n");
1526	printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
1527	printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
1528	printf("*** required on your system.\n");
1529	printf("*** If libprelude-config was wrong, set the environment variable LIBPRELUDE_CONFIG\n");
1530	printf("*** to point to the correct copy of libprelude-config, and remove the file config.cache\n");
1531	printf("*** before re-running configure\n");
1532	}
1533	else if ( strcmp(prelude_check_version(NULL), LIBPRELUDE_VERSION ) )
1534	{
1535	printf("\n*** LIBPRELUDE header file (version %s) does not match\n", LIBPRELUDE_VERSION);
1536	printf("*** library (version %s)\n", prelude_check_version(NULL) );
1537	}
1538	else
1539	{
1540	if ( prelude_check_version( "$min_libprelude_version" ) )
1541	{
1542	return 0;
1543	}
1544	else
1545	{
1546	printf("no\n*** An old version of LIBPRELUDE (%s) was found.\n",
1547	prelude_check_version(NULL) );
1548	printf("*** You need a version of LIBPRELUDE newer than %s. The latest version of\n",
1549	"$min_libprelude_version" );
1550	printf("*** LIBPRELUDE is always available from http://www.prelude-ids.org/download/releases.\n");
1551	printf("*** \n");
1552	printf("*** If you have already installed a sufficiently new version, this error\n");
1553	printf("*** probably means that the wrong copy of the libprelude-config shell script is\n");
1554	printf("*** being found. The easiest way to fix this is to remove the old version\n");
1555	printf("*** of LIBPRELUDE, but you can also set the LIBPRELUDE_CONFIG environment to point to the\n");
1556	printf("*** correct copy of libprelude-config. (In this case, you will have to\n");
1557	printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
1558	printf("*** so that the correct libraries are found at run-time))\n");
1559	}
1560	}
1561	return 1;
1562	}
1563	],, no_libprelude=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
1564	CFLAGS="$ac_save_CFLAGS"
1565	LIBS="$ac_save_LIBS"
1566	LDFLAGS="$ac_save_LDFLAGS"
1567	fi
1568
1569	if test "x$no_libprelude" = x ; then
1570	AC_MSG_RESULT(yes)
1571	ifelse([$2], , :, [$2])
1572	else
1573	if test -f conf.libpreludetest ; then
1574	:
1575	else
1576	AC_MSG_RESULT(no)
1577	fi
1578	if test "$LIBPRELUDE_CONFIG" = "no" ; then
1579	echo "*** The libprelude-config script installed by LIBPRELUDE could not be found"
1580	echo "*** If LIBPRELUDE was installed in PREFIX, make sure PREFIX/bin is in"
1581	echo "*** your path, or set the LIBPRELUDE_CONFIG environment variable to the"
1582	echo "*** full path to libprelude-config."
1583	else
1584	if test -f conf.libpreludetest ; then
1585	:
1586	else
1587	echo "*** Could not run libprelude test program, checking why..."
1588	CFLAGS="$CFLAGS $LIBPRELUDE_CFLAGS"
1589	LDFLAGS="$LDFLAGS $LIBPRELUDE_LDFLAGS"
1590	LIBS="$LIBS $LIBPRELUDE_LIBS"
1591	AC_TRY_LINK([
1592	#include <stdio.h>
1593	#include <stdlib.h>
1594	#include <string.h>
1595	#include <libprelude/prelude.h>
1596	], [ return !!prelude_check_version(NULL); ],
1597	[ echo "*** The test program compiled, but did not run. This usually means"
1598	echo "*** that the run-time linker is not finding LIBPRELUDE or finding the wrong"
1599	echo "*** version of LIBPRELUDE. If it is not finding LIBPRELUDE, you'll need to set your"
1600	echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
1601	echo "*** to the installed location Also, make sure you have run ldconfig if that"
1602	echo "*** is required on your system"
1603	echo "***"
1604	echo "*** If you have an old version installed, it is best to remove it, although"
1605	echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
1606	echo "***" ],
1607	[ echo "*** The test program failed to compile or link. See the file config.log for the"
1608	echo "*** exact error that occured. This usually means LIBPRELUDE was incorrectly installed"
1609	echo "*** or that you have moved LIBPRELUDE since it was installed. In the latter case, you"
1610	echo "*** may want to edit the libprelude-config script: $LIBPRELUDE_CONFIG" ])
1611	CFLAGS="$ac_save_CFLAGS"
1612	LDFLAGS="$ac_save_LDFLAGS"
1613	LIBS="$ac_save_LIBS"
1614	fi
1615	fi
1616	LIBPRELUDE_CFLAGS=""
1617	LIBPRELUDE_LDFLAGS=""
1618	LIBPRELUDE_LIBS=""
1619	ifelse([$3], , :, [$3])
1620	fi
1621	rm -f conf.libpreludetest
1622	AC_SUBST(LIBPRELUDE_CFLAGS)
1623	AC_SUBST(LIBPRELUDE_PTHREAD_CFLAGS)
1624	AC_SUBST(LIBPRELUDE_LDFLAGS)
1625	AC_SUBST(LIBPRELUDE_LIBS)
1626	AC_SUBST(LIBPRELUDE_PREFIX)
1627	AC_SUBST(LIBPRELUDE_CONFIG_PREFIX)
1628	])
1629
1630
1631	##### http://autoconf-archive.cryp.to/acx_pthread.html
1632	#
1633	# SYNOPSIS
1634	#
1635	# ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
1636	#
1637	# DESCRIPTION
1638	#
1639	# This macro figures out how to build C programs using POSIX threads.
1640	# It sets the PTHREAD_LIBS output variable to the threads library and
1641	# linker flags, and the PTHREAD_CFLAGS output variable to any special
1642	# C compiler flags that are needed. (The user can also force certain
1643	# compiler flags/libs to be tested by setting these environment
1644	# variables.)
1645	#
1646	# Also sets PTHREAD_CC to any special C compiler that is needed for
1647	# multi-threaded programs (defaults to the value of CC otherwise).
1648	# (This is necessary on AIX to use the special cc_r compiler alias.)
1649	#
1650	# NOTE: You are assumed to not only compile your program with these
1651	# flags, but also link it with them as well. e.g. you should link
1652	# with $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS
1653	# $LIBS
1654	#
1655	# If you are only building threads programs, you may wish to use
1656	# these variables in your default LIBS, CFLAGS, and CC:
1657	#
1658	# LIBS="$PTHREAD_LIBS $LIBS"
1659	# CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1660	# CC="$PTHREAD_CC"
1661	#
1662	# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute
1663	# constant has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to
1664	# that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
1665	#
1666	# ACTION-IF-FOUND is a list of shell commands to run if a threads
1667	# library is found, and ACTION-IF-NOT-FOUND is a list of commands to
1668	# run it if it is not found. If ACTION-IF-FOUND is not specified, the
1669	# default action will define HAVE_PTHREAD.
1670	#
1671	# Please let the authors know if this macro fails on any platform, or
1672	# if you have any other suggestions or comments. This macro was based
1673	# on work by SGJ on autoconf scripts for FFTW (http://www.fftw.org/)
1674	# (with help from M. Frigo), as well as ac_pthread and hb_pthread
1675	# macros posted by Alejandro Forero Cuervo to the autoconf macro
1676	# repository. We are also grateful for the helpful feedback of
1677	# numerous users.
1678	#
1679	# LAST MODIFICATION
1680	#
1681	# 2007-07-29
1682	#
1683	# COPYLEFT
1684	#
1685	# Copyright (c) 2007 Steven G. Johnson <stevenj@alum.mit.edu>
1686	#
1687	# This program is free software: you can redistribute it and/or
1688	# modify it under the terms of the GNU General Public License as
1689	# published by the Free Software Foundation, either version 3 of the
1690	# License, or (at your option) any later version.
1691	#
1692	# This program is distributed in the hope that it will be useful, but
1693	# WITHOUT ANY WARRANTY; without even the implied warranty of
1694	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1695	# General Public License for more details.
1696	#
1697	# You should have received a copy of the GNU General Public License
1698	# along with this program. If not, see
1699	# <http://www.gnu.org/licenses/>.
1700	#
1701	# As a special exception, the respective Autoconf Macro's copyright
1702	# owner gives unlimited permission to copy, distribute and modify the
1703	# configure scripts that are the output of Autoconf when processing
1704	# the Macro. You need not follow the terms of the GNU General Public
1705	# License when using or distributing such scripts, even though
1706	# portions of the text of the Macro appear in them. The GNU General
1707	# Public License (GPL) does govern all other use of the material that
1708	# constitutes the Autoconf Macro.
1709	#
1710	# This special exception to the GPL applies to versions of the
1711	# Autoconf Macro released by the Autoconf Macro Archive. When you
1712	# make and distribute a modified version of the Autoconf Macro, you
1713	# may extend this special exception to the GPL to apply to your
1714	# modified version as well.
1715
1716	AC_DEFUN([ACX_PTHREAD], [
1717	AC_REQUIRE([AC_CANONICAL_HOST])
1718	AC_LANG_SAVE
1719	AC_LANG_C
1720	acx_pthread_ok=no
1721
1722	# We used to check for pthread.h first, but this fails if pthread.h
1723	# requires special compiler flags (e.g. on True64 or Sequent).
1724	# It gets checked for in the link test anyway.
1725
1726	# First of all, check if the user has set any of the PTHREAD_LIBS,
1727	# etcetera environment variables, and if threads linking works using
1728	# them:
1729	if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
1730	save_CFLAGS="$CFLAGS"
1731	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1732	save_LIBS="$LIBS"
1733	LIBS="$PTHREAD_LIBS $LIBS"
1734	AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
1735	AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
1736	AC_MSG_RESULT($acx_pthread_ok)
1737	if test x"$acx_pthread_ok" = xno; then
1738	PTHREAD_LIBS=""
1739	PTHREAD_CFLAGS=""
1740	fi
1741	LIBS="$save_LIBS"
1742	CFLAGS="$save_CFLAGS"
1743	fi
1744
1745	# We must check for the threads library under a number of different
1746	# names; the ordering is very important because some systems
1747	# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
1748	# libraries is broken (non-POSIX).
1749
1750	# Create a list of thread flags to try. Items starting with a "-" are
1751	# C compiler flags, and other items are library names, except for "none"
1752	# which indicates that we try without any flags at all, and "pthread-config"
1753	# which is a program returning the flags for the Pth emulation library.
1754
1755	acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
1756
1757	# The ordering is (sometimes) important. Some notes on the
1758	# individual items follow:
1759
1760	# pthreads: AIX (must check this before -lpthread)
1761	# none: in case threads are in libc; should be tried before -Kthread and
1762	# other compiler flags to prevent continual compiler warnings
1763	# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
1764	# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
1765	# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
1766	# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
1767	# -pthreads: Solaris/gcc
1768	# -mthreads: Mingw32/gcc, Lynx/gcc
1769	# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
1770	# doesn't hurt to check since this sometimes defines pthreads too;
1771	# also defines -D_REENTRANT)
1772	# ... -mt is also the pthreads flag for HP/aCC
1773	# pthread: Linux, etcetera
1774	# --thread-safe: KAI C++
1775	# pthread-config: use pthread-config program (for GNU Pth library)
1776
1777	case "${host_cpu}-${host_os}" in
1778	solaris)
1779
1780	# On Solaris (at least, for some versions), libc contains stubbed
1781	# (non-functional) versions of the pthreads routines, so link-based
1782	# tests will erroneously succeed. (We need to link with -pthreads/-mt/
1783	# -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
1784	# a function called by this macro, so we could check for that, but
1785	# who knows whether they'll stub that too in a future libc.) So,
1786	# we'll just look for -pthreads and -lpthread first:
1787
1788	acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
1789	;;
1790	esac
1791
1792	if test x"$acx_pthread_ok" = xno; then
1793	for flag in $acx_pthread_flags; do
1794
1795	case $flag in
1796	none)
1797	AC_MSG_CHECKING([whether pthreads work without any flags])
1798	;;
1799
1800	-pthread)
1801	AC_MSG_CHECKING([whether pthreads work with $flag])
1802	PTHREAD_CFLAGS="$flag"
1803	;;
1804
1805	-*)
1806	AC_MSG_CHECKING([whether pthreads work with $flag])
1807	PTHREAD_CFLAGS="$flag"
1808	;;
1809
1810	pthread-config)
1811	AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
1812	if test x"$acx_pthread_config" = xno; then continue; fi
1813	PTHREAD_CFLAGS="`pthread-config --cflags`"
1814	PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
1815	;;
1816
1817	*)
1818	AC_MSG_CHECKING([for the pthreads library -l$flag])
1819	PTHREAD_LIBS="-l$flag"
1820	;;
1821	esac
1822
1823	save_LIBS="$LIBS"
1824	save_CFLAGS="$CFLAGS"
1825	save_LDFLAGS="$LDFLAGS"
1826	LIBS="$PTHREAD_LIBS $LIBS"
1827	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1828	LDFLAGS="$LDFLAGS $PTHREAD_CFLAGS"
1829
1830	# Check for various functions. We must include pthread.h,
1831	# since some functions may be macros. (On the Sequent, we
1832	# need a special flag -Kthread to make this header compile.)
1833	# We check for pthread_join because it is in -lpthread on IRIX
1834	# while pthread_create is in libc. We check for pthread_attr_init
1835	# due to DEC craziness with -lpthreads. We check for
1836	# pthread_cleanup_push because it is one of the few pthread
1837	# functions on Solaris that doesn't have a non-functional libc stub.
1838	# We try pthread_create on general principles.
1839	AC_TRY_LINK([#include <pthread.h>],
1840	[pthread_t th; pthread_join(th, 0);
1841	pthread_attr_init(0); pthread_cleanup_push(0, 0);
1842	pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
1843	[acx_pthread_ok=yes])
1844
1845	LIBS="$save_LIBS"
1846	LDFLAGS="$save_LDFLAGS"
1847	CFLAGS="$save_CFLAGS"
1848
1849	AC_MSG_RESULT($acx_pthread_ok)
1850	if test "x$acx_pthread_ok" = xyes; then
1851	break;
1852	fi
1853
1854	PTHREAD_LIBS=""
1855	PTHREAD_CFLAGS=""
1856	done
1857	fi
1858
1859	# Various other checks:
1860	if test "x$acx_pthread_ok" = xyes; then
1861	save_LIBS="$LIBS"
1862	LIBS="$PTHREAD_LIBS $LIBS"
1863	save_CFLAGS="$CFLAGS"
1864	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1865
1866	# Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
1867	AC_MSG_CHECKING([for joinable pthread attribute])
1868	attr_name=unknown
1869	for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
1870	AC_TRY_LINK([#include <pthread.h>], [int attr=$attr; return attr;],
1871	[attr_name=$attr; break])
1872	done
1873	AC_MSG_RESULT($attr_name)
1874	if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
1875	AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
1876	[Define to necessary symbol if this constant
1877	uses a non-standard name on your system.])
1878	fi
1879
1880	# Solaris lossage: default is obsolete semantics for getpwnam_r,
1881	# getpwuid_r, getgrgid_r, unless _POSIX_PTHREAD_SEMANTICS is defined
1882	AC_MSG_CHECKING([if more special flags are required for pthreads])
1883	flag=no
1884	case "${host_cpu}-${host_os}" in
1885	-aix \| -freebsd \| -darwin) flag="-D_THREAD_SAFE";;
1886	-osf \| -hpux) flag="-D_REENTRANT";;
1887	solaris) flag="-D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT";;
1888	esac
1889	AC_MSG_RESULT(${flag})
1890	if test "x$flag" != xno; then
1891	PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
1892	fi
1893
1894	# Detect PTHREAD_MUTEX_RECURSIVE
1895	AC_MSG_CHECKING([for recursive mutexes])
1896	mutex_recursive=no
1897	AC_TRY_LINK([
1898	#define _XOPEN_SOURCE 500
1899	#include <pthread.h>], [
1900	pthread_mutexattr_t mta;
1901	pthread_mutexattr_settype(&mta, PTHREAD_MUTEX_RECURSIVE);
1902	return 0;],[mutex_recursive=yes])
1903	if test "x$mutex_recursive" = "xyes"
1904	then
1905	AC_DEFINE(HAVE_PTHREAD_MUTEX_RECURSIVE,1,[Define if you have recursive mutexes.])
1906	fi
1907	AC_MSG_RESULT($mutex_recursive)
1908
1909	LIBS="$save_LIBS"
1910	CFLAGS="$save_CFLAGS"
1911
1912	# More AIX lossage: must compile with xlc_r or cc_r
1913	if test x"$GCC" != xyes; then
1914	AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC})
1915	else
1916	PTHREAD_CC=$CC
1917	fi
1918	else
1919	PTHREAD_CC="$CC"
1920	fi
1921
1922	if test x"$acx_pthread_ok" = xyes; then
1923	PTHREAD_CFLAGS="${PTHREAD_CFLAGS} -DUSE_MALLOC_LOCK=1"
1924	fi
1925
1926	AC_SUBST(PTHREAD_LIBS)
1927	AC_SUBST(PTHREAD_CFLAGS)
1928	AC_SUBST(PTHREAD_LDFLAGS)
1929	AC_SUBST(PTHREAD_CC)
1930
1931	# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
1932	if test x"$acx_pthread_ok" = xyes; then
1933	ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
1934	:
1935	else
1936	acx_pthread_ok=no
1937	$2
1938	fi
1939	AC_LANG_RESTORE
1940	])dnl ACX_PTHREAD
1941
1942
1943
1944
1945	dnl Copyright Â© 2004 Loic Dachary <loic@senga.org>
1946	dnl
1947	dnl This program is free software; you can redistribute it and/or modify
1948	dnl it under the terms of the GNU General Public License as published by
1949	dnl the Free Software Foundation; either version 2 of the License, or (at
1950	dnl your option) any later version.
1951	dnl
1952	dnl Use ZLIB_HOME instead of option
1953
1954	AC_DEFUN([CHECK_ZLIB],[
1955
1956	if test "x${ZLIB_HOME}" = "x"; then
1957	ZLIB_HOME=/usr/local
1958	if test ! -f "${ZLIB_HOME}/include/zlib.h"
1959	then
1960	ZLIB_HOME=/usr
1961	fi
1962	fi
1963
1964	zlib_found=no
1965
1966	ZLIB_OLD_LDFLAGS=$LDFLAGS
1967	ZLIB_OLD_CPPFLAGS=$LDFLAGS
1968	if test "x${ZLIB_HOME}" = "x/usr"; then
1969	:
1970	else
1971	LDFLAGS="$LDFLAGS -L${ZLIB_HOME}/lib"
1972	CPPFLAGS="$CPPFLAGS -I${ZLIB_HOME}/include"
1973	fi
1974	AC_LANG_SAVE
1975	AC_LANG_C
1976	AC_CHECK_LIB(z, inflateEnd, [zlib_cv_libz=yes], [zlib_cv_libz=no])
1977	AC_CHECK_HEADER(zlib.h, [zlib_cv_zlib_h=yes], [zlib_cv_zlib_h=no])
1978	AC_LANG_RESTORE
1979	if test "$zlib_cv_libz" = "yes" -a "$zlib_cv_zlib_h" = "yes"
1980	then
1981	#
1982	# If both library and header were found, use them
1983	#
1984	AC_CHECK_LIB(z, inflateEnd)
1985	AC_MSG_CHECKING([zlib in ${ZLIB_HOME}])
1986	AC_MSG_RESULT(ok)
1987	AC_CHECK_FUNCS([compressBound])
1988	zlib_found=yes
1989	else
1990	#
1991	# If either header or library was not found, revert and bomb
1992	#
1993	AC_MSG_CHECKING(zlib in ${ZLIB_HOME})
1994	LDFLAGS="$ZLIB_OLD_LDFLAGS"
1995	CPPFLAGS="$ZLIB_OLD_CPPFLAGS"
1996	AC_MSG_RESULT(failed)
1997	AC_MSG_WARN([zlib not found in ZLIB_HOME, /usr/local, or /usr])
1998	fi
1999
2000	])
2001
2002	# SH_PROG_LD
2003	# ----------
2004	# find the pathname to the GNU or non-GNU linker
2005	AC_DEFUN([SH_PROG_LD],
2006	[
2007	AC_REQUIRE([AC_PROG_CC])dnl
2008	AC_REQUIRE([AC_CANONICAL_HOST])dnl
2009	AC_REQUIRE([AC_CANONICAL_BUILD])dnl
2010	ac_prog=ld
2011	if test "$GCC" = yes; then
2012	# Check if gcc -print-prog-name=ld gives a path.
2013	AC_MSG_CHECKING([for ld used by $CC])
2014	case $host in
2015	--mingw*)
2016	# gcc leaves a trailing carriage return which upsets mingw
2017	ac_prog=`($CC -print-prog-name=ld) 2>&5 \| tr -d '\015'` ;;
2018	*)
2019	ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
2020	esac
2021	case $ac_prog in
2022	# Accept absolute paths.
2023	[[\\/]]* \| ?:[[\\/]]*)
2024	re_direlt='/[[^/]][[^/]]*/\.\./'
2025	# Canonicalize the pathname of ld
2026	ac_prog=`echo $ac_prog\| sed 's%\\\\%/%g'`
2027	while echo $ac_prog \| grep "$re_direlt" > /dev/null 2>&1; do
2028	ac_prog=`echo $ac_prog\| sed "s%$re_direlt%/%"`
2029	done
2030	test -z "$LD" && LD="$ac_prog"
2031	;;
2032	"")
2033	# If it fails, then pretend we aren't using GCC.
2034	ac_prog=ld
2035	;;
2036	*)
2037	# If it is relative, then search for the first ld in PATH.
2038	with_gnu_ld=unknown
2039	;;
2040	esac
2041	else
2042	AC_MSG_CHECKING([for ld])
2043	fi
2044	AC_CACHE_VAL(lt_cv_path_LD,
2045	[if test -z "$LD"; then
2046	lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
2047	for ac_dir in $PATH; do
2048	IFS="$lt_save_ifs"
2049	test -z "$ac_dir" && ac_dir=.
2050	if test -f "$ac_dir/$ac_prog" \|\| test -f "$ac_dir/$ac_prog$ac_exeext"; then
2051	lt_cv_path_LD="$ac_dir/$ac_prog"
2052	# Check to see if the program is GNU ld. I'd rather use --version,
2053	# but apparently some variants of GNU ld only accept -v.
2054	# Break only if it was the GNU/non-GNU ld that we prefer.
2055	case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
2056	GNU \| 'with BFD')
2057	with_gnu_ld=yes
2058	;;
2059	*)
2060	with_gnu_ld=no
2061	;;
2062	esac
2063	fi
2064	done
2065	IFS="$lt_save_ifs"
2066	else
2067	lt_cv_path_LD="$LD" # Let the user override the test with a path.
2068	fi])
2069	LD="$lt_cv_path_LD"
2070	if test -n "$LD"; then
2071	AC_MSG_RESULT($LD)
2072	else
2073	AC_MSG_RESULT(no)
2074	fi
2075	test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
2076	AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
2077	[# I'd rather use --version here, but apparently some GNU lds only accept -v.
2078	case `$LD -v 2>&1 </dev/null` in
2079	GNU \| 'with BFD')
2080	lt_cv_prog_gnu_ld=yes
2081	;;
2082	*)
2083	lt_cv_prog_gnu_ld=no
2084	;;
2085	esac])
2086	with_gnu_ld=$lt_cv_prog_gnu_ld
2087	])# AC_PROG_LD_GNU
2088
2089	# SH_STRFTIME_Z
2090	# -------------
2091	# check whether strftime supports %z
2092	AC_DEFUN([SH_STRFTIME_Z],
2093	[
2094	AC_MSG_CHECKING([whether strftime supports %z])
2095	AC_TRY_RUN([
2096	#include <time.h>
2097	#include <string.h>
2098	int main()
2099	{
2100	struct tm tm;
2101	char tt[64];
2102	memset(&tm, 0, sizeof(tm));
2103	strftime(tt, sizeof(tt), "%z", &tm);
2104
2105	if (strlen(tt) != 5) return 1;
2106	return 0;
2107	}
2108	],
2109	[
2110	AC_MSG_RESULT([yes])
2111	AC_DEFINE(HAVE_STRFTIME_Z, 1, [strftime supports %z])
2112	],
2113	[
2114	AC_MSG_RESULT([no])
2115	],[
2116	AC_MSG_RESULT([no])
2117	])])
2118
2119	AC_DEFUN([SH_GCC_VERSION], [
2120	GCC_VERSION=""
2121	gcc_VERSION_MAJOR=0
2122	gcc_VERSION_MINOR=0
2123	AC_MSG_CHECKING([for gcc version])
2124	if test "x$GCC" = "xyes"
2125	then
2126	$CC -dumpversion >/dev/null 2>&1
2127	if test $? -eq 0
2128	then
2129	GCC_VERSION=`$CC -dumpversion`
2130	gcc_VERSION_MAJOR=`echo $GCC_VERSION \| cut -d'.' -f1`
2131	gcc_VERSION_MINOR=`echo $GCC_VERSION \| cut -d'.' -f2`
2132	AC_DEFINE_UNQUOTED(GCC_VERSION_MAJOR, [${gcc_VERSION_MAJOR}], [gcc version major])
2133	AC_DEFINE_UNQUOTED(GCC_VERSION_MINOR, [${gcc_VERSION_MINOR}], [gcc version minor])
2134	AC_MSG_RESULT([$GCC_VERSION])
2135	else
2136	AC_MSG_RESULT([$CC -dumpversion working])
2137	fi
2138	else
2139	AC_MSG_RESULT([compiler is not gcc])
2140	fi
2141	])
2142
2143
2144
2145	dnl -wedit:notab- Please keep this as the last line.
2146

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