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source: trunk/aclocal.m4@ 545

Last change on this file since 545 was 544, checked in by katerina, 6 years ago
Fix for ticket #436 (new gcc compiler options, including LTO).
File size: 64.5 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], [1], [Define if type is defined in stdint.h or inttypes.h])
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=$PATH_SEPARATOR; export CDPATH; }
389
390
391	# Initialize some variables set by options.
392	ac_init_help=
393	ac_init_version=false
394	# The variables have the same names as the options, with
395	# dashes changed to underlines.
396	cache_file=/dev/null
397	AC_SUBST(exec_prefix, NONE)dnl
398	no_create=
399	no_recursion=
400	AC_SUBST(prefix, NONE)dnl
401	program_prefix=NONE
402	program_suffix=NONE
403	AC_SUBST(program_transform_name, [s,x,x,])dnl
404	silent=
405	site=
406	srcdir=
407	verbose=
408	x_includes=NONE
409	x_libraries=NONE
410	DESTDIR=
411	SH_ENABLE_OPTS="selinux posix-acl asm ssp db-reload xml-log message-queue login-watch process-check port-check mounts-check logfile-monitor userfiles debug ptrace static network udp nocl stealth micro-stealth install-name identity khide suidcheck base largefile mail external-scripts encrypt srp dnmalloc ipv6 shellexpand suid"
412	SH_WITH_OPTS="prelude libprelude-prefix database libwrap cflags libs console altconsole timeserver alttimeserver rnd egd-socket port logserver altlogserver kcheck gpg keyid checksum fp recipient sender trusted tmp-dir config-file log-file pid-file state-dir data-file html-file"
413
414	# Installation directory options.
415	# These are left unexpanded so users can "make install exec_prefix=/foo"
416	# and all the variables that are supposed to be based on exec_prefix
417	# by default will actually change.
418	dnl Use braces instead of parens because sh, perl, etc. also accept them.
419	sbindir='${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 ${CC} accepts -fstack-protector-strong],
1128	ssp_cv_cc,
1129	[ssp_old_cflags="$CFLAGS"
1130	CFLAGS="$CFLAGS -fstack-protector-strong"
1131	AC_TRY_COMPILE(,, ssp_cv_cc=yes, ssp_cv_cc=no)
1132	CFLAGS="$ssp_old_cflags"
1133	])
1134	if test $ssp_cv_cc = no; then
1135	AC_CACHE_CHECK([whether ${CC} accepts -fstack-protector-all],
1136	ssp_cv_cc,
1137	[ssp_old_cflags="$CFLAGS"
1138	CFLAGS="$CFLAGS -fstack-protector-all"
1139	AC_TRY_COMPILE(,, ssp_cv_cc=yes, ssp_cv_cc=no)
1140	CFLAGS="$ssp_old_cflags"
1141	])
1142	if test $ssp_cv_cc = no; then
1143	AC_CACHE_CHECK([whether ${CC} accepts -fstack-protector],
1144	ssp_cv_cc,
1145	[ssp_old_cflags="$CFLAGS"
1146	CFLAGS="$CFLAGS -fstack-protector"
1147	AC_TRY_COMPILE(,, ssp_cv_cc=yes, ssp_cv_cc=no)
1148	CFLAGS="$ssp_old_cflags"
1149	])
1150	if test $ssp_cv_cc = yes; then
1151	CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector"
1152	LDFLAGS="$LDFLAGS -fstack-protector"
1153	AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])
1154	fi
1155	else
1156	if test $ssp_cv_cc = yes; then
1157	CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector-all"
1158	LDFLAGS="$LDFLAGS -fstack-protector-all"
1159	AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])
1160	fi
1161	fi
1162	else
1163	if test $ssp_cv_cc = yes; then
1164	CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector-strong"
1165	LDFLAGS="$LDFLAGS -fstack-protector-strong"
1166	AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])
1167	fi
1168	fi
1169	fi
1170	])
1171
1172	AC_DEFUN([GCC_STACK_PROTECT_CXX],[
1173	AC_LANG_ASSERT(C++)
1174	if test "X$CXX" != "X"; then
1175	AC_CACHE_CHECK([whether ${CXX} accepts -fstack-protector],
1176	ssp_cv_cxx,
1177	[ssp_old_cxxflags="$CXXFLAGS"
1178	CXXFLAGS="$CXXFLAGS -fstack-protector"
1179	AC_TRY_COMPILE(,, ssp_cv_cxx=yes, ssp_cv_cxx=no)
1180	CXXFLAGS="$ssp_old_cxxflags"
1181	])
1182	if test $ssp_cv_cxx = yes; then
1183	CXXFLAGS="$CXXFLAGS -fstack-protector"
1184	AC_DEFINE([ENABLE_SSP_CXX], 1, [Define if SSP C++ support is enabled.])
1185	fi
1186	fi
1187	])
1188
1189	AC_DEFUN([GCC_STACK_PROTECTOR],[
1190	GCC_STACK_PROTECT_LIB
1191
1192	AC_LANG_PUSH([C])
1193	GCC_STACK_PROTECT_CC
1194	AC_LANG_POP([C])
1195
1196	AC_LANG_PUSH([C++])
1197	GCC_STACK_PROTECT_CXX
1198	AC_LANG_POP([C++])
1199	])
1200
1201
1202	AC_DEFUN([GCC_PIE_CC],[
1203	AC_LANG_ASSERT(C)
1204	if test "X$CC" != "X"; then
1205	AC_CACHE_CHECK([whether ${CC} accepts -pie -fPIE],
1206	pie_cv_cc,
1207	[pie_old_cflags="$CFLAGS"
1208	CFLAGS="$CFLAGS -pie -fPIE"
1209	AC_TRY_COMPILE(,, pie_cv_cc=yes, pie_cv_cc=no)
1210	CFLAGS="$pie_old_cflags"
1211	])
1212	if test $pie_cv_cc = yes; then
1213	case "$host_os" in
1214	cygwin)
1215	;;
1216	*)
1217	PIE_CFLAGS="-fPIE"
1218	PIE_LDFLAGS="-pie"
1219	;;
1220	esac
1221	fi
1222	fi
1223	])
1224
1225	AC_DEFUN([GCC_STACK_CHECK_CC],[
1226	AC_LANG_ASSERT(C)
1227	if test "X$CC" != "X"; then
1228	AC_CACHE_CHECK([whether ${CC} accepts -fstack-clash-protection],
1229	stackcheck_cv_cc,
1230	[stackcheck_old_cflags="$CFLAGS"
1231	CFLAGS="$CFLAGS -fstack-clash-protection"
1232	AC_TRY_COMPILE(,, stackcheck_cv_cc=yes, stackcheck_cv_cc=no)
1233	CFLAGS="$stackcheck_old_cflags"
1234	])
1235	if test $stackcheck_cv_cc = yes; then
1236	CFLAGS="$CFLAGS -fstack-clash-protection"
1237	fi
1238	fi
1239	])
1240
1241	AC_DEFUN([GCC_FLAG_CHECK],[
1242	AC_LANG_ASSERT(C)
1243	if test "X$CC" != "X"; then
1244	AC_MSG_CHECKING([whether ${CC} accepts $1])
1245	saved_cflags="$CFLAGS"
1246	CFLAGS="$CFLAGS -Werror $1"
1247	AC_TRY_COMPILE(,, flag_check_cv=yes, flag_check_cv=no)
1248	CFLAGS="$saved_cflags"
1249
1250	if test $flag_check_cv = yes; then
1251	CFLAGS="$CFLAGS $1"
1252	AC_MSG_RESULT([yes])
1253	else
1254	AC_MSG_RESULT([no])
1255	fi
1256	fi
1257	])
1258
1259	AC_DEFUN([SAMHAIN_POSIX],[
1260	AC_MSG_CHECKING([whether _POSIX_SOURCE is necessary])
1261	AC_TRY_COMPILE([#include <stdio.h>
1262	void fileno(int);int fdopen(int, char *); ],,
1263	[
1264	AC_MSG_RESULT(yes)
1265	AC_DEFINE([_POSIX_SOURCE],1,[Define if POSIX functions are required])
1266	],
1267	[AC_MSG_RESULT(no)])
1268	])dnl
1269
1270	dnl checks for a known 64 bit programming environment
1271	dnl AC_RUN_IFELSE(PROGRAM,
1272	dnl [ACTION-IF-TRUE], [ACTION-IF-FALSE],
1273	dnl [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
1274	dnl
1275	AC_DEFUN([SAMHAIN_PRG_ENV],[
1276	AC_MSG_CHECKING([for a known 64 bit programming environment])
1277	# Compile and run a program that determines the programming environment
1278	AC_RUN_IFELSE([
1279	AC_LANG_SOURCE([[
1280	#include <stdio.h>
1281	int main(int argc,char **argv)
1282	{
1283	if (argc > 1) {
1284	#if defined(__arch64__)
1285	printf("__arch64__\n");
1286	#elif defined(__ia64__)
1287	printf("__ia64__\n");
1288	#elif defined(__x86_64__)
1289	printf("__x86_64__\n");
1290	#elif defined(__LP64__)
1291	printf("__LP64__\n");
1292	#elif defined(__64BIT__)
1293	printf("__64BIT__\n");
1294	#elif defined(_LP64)
1295	printf("_LP64\n");
1296	#elif defined(_M_IA64)
1297	printf("_M_IA64\n");
1298	#elif defined(_MIPS_SZLONG) && (_MIPS_SZLONG == 64)
1299	printf("_MIPS_64\n");
1300	#else
1301	choke me
1302	#endif
1303	}
1304	return 0;
1305	}
1306	]])
1307	],[
1308	# Program compiled and ran, so get version by adding argument.
1309	samhain_prg_ENV=`./conftest$ac_exeext x`
1310	samhain_64=yes
1311	AC_MSG_RESULT([$samhain_prg_ENV])
1312	],[
1313	AC_MSG_RESULT([none])
1314	],[
1315	AC_MSG_RESULT([none])
1316	])
1317	])dnl
1318
1319	AC_DEFUN([SAMHAIN_X86_64],[
1320	AC_MSG_CHECKING([for x86_64])
1321	AC_TRY_RUN([
1322	int main() {
1323	__asm__ volatile (
1324	"movq %rax, %rax"
1325	);
1326	return 0;
1327	}
1328	],
1329	[
1330	AC_MSG_RESULT(yes)
1331	samhain_64=yes
1332	tiger_src=sh_tiger1_64.c
1333	samhain_64_asm=yes
1334	],
1335	[
1336	AC_MSG_RESULT([no])
1337	],[
1338	AC_MSG_RESULT([no])
1339	])
1340	])dnl
1341
1342
1343	AC_DEFUN([SAMHAIN_64],[
1344	samhain_64=no
1345	tiger_src=sh_tiger1.c
1346	samhain_64_asm=no
1347	#
1348	# if sizeof(unsigned long) = 4, try compiler macros for 64bit
1349	#
1350	if test "x$ac_cv_sizeof_unsigned_long" = x4; then
1351	if test "x$ac_cv_sizeof_unsigned_long_long" = x8; then
1352	SAMHAIN_PRG_ENV
1353	if test "x$samhain_64" = xyes; then
1354	tiger_src=sh_tiger1_64.c
1355	fi
1356	#
1357	# if GCC and __i386__, use precompiled assembler
1358	#
1359	if test "x$GCC" = xyes; then
1360	AC_MSG_CHECKING([for non-apple non-cygwin i386])
1361	samhain_i386=no
1362	$CC -E -dM - < /dev/null \| egrep '__i386__' >/dev/null 2>&1
1363	if test $? = 0; then
1364	case "$host_os" in
1365	linux)
1366	# apples gcc does not understand the assembly we provide
1367	$CC -E -dM - < /dev/null \| egrep '(__sun__\|__APPLE__\|__CYGWIN__)' >/dev/null 2>&1 \|\| samhain_i386=yes
1368	;;
1369	*)
1370	;;
1371	esac
1372	fi
1373	AC_MSG_RESULT([$samhain_i386])
1374	if test "x$samhain_i386" = xyes; then
1375	GCC_PIE_CC
1376	if test $pie_cv_cc = yes; then
1377	tiger_src=sh_tiger1.s
1378	AC_DEFINE([TIGER_32_BIT_S],1,[Define to use tiger 32 bit i386 assembler])
1379	fi
1380	fi
1381	fi
1382	#
1383	#
1384	#
1385	else
1386	samhain_64=no
1387	tiger_src=sh_tiger1.c
1388	fi
1389	else
1390	#
1391	# sizeof(unsigned long) = 8
1392	#
1393	tiger_src=sh_tiger1_64.c
1394	samhain_64=yes
1395	#
1396	# check for x86_64 (enables assembly optimizations)
1397	#
1398	if test "x$GCC" = xyes; then
1399	$CC -E -dM - < /dev/null \| egrep '__clang__' >/dev/null 2>&1
1400	if ! test $? = 0; then
1401	case "$host_os" in
1402	linux)
1403	SAMHAIN_X86_64
1404	;;
1405	bsd)
1406	SAMHAIN_X86_64
1407	;;
1408	*)
1409	SAMHAIN_X86_64
1410	;;
1411	esac
1412	fi
1413	fi
1414	fi
1415	if test "x$samhain_64" = xyes; then
1416	AC_DEFINE([TIGER_64_BIT],1,[Define to use tiger 64 bit implementation])
1417	fi
1418	AC_MSG_CHECKING([for 64 bit environment])
1419	AC_MSG_RESULT([$samhain_64])
1420	AC_MSG_CHECKING([for tiger source to use])
1421	AC_MSG_RESULT([$tiger_src])
1422	AC_SUBST(tiger_src)
1423	])dnl
1424
1425	AC_DEFUN([sh_CHECK_POSIX_ACL],
1426	[
1427	AC_CHECK_HEADERS(sys/acl.h)
1428	if test $ac_cv_header_sys_acl_h = yes; then
1429
1430	AC_CHECK_LIB([acl], [acl_get_file], sh_lacl=yes, sh_lacl=no)
1431	if test x"$sh_lacl" = xyes; then
1432	LIBACL=-lacl
1433	else
1434	LIBACL=
1435	fi
1436
1437	OLDLIBS="$LIBS"
1438	LIBS="$LIBS $LIBACL"
1439	AC_CHECK_FUNCS([acl_free acl_get_file acl_get_fd],
1440	[sh_facl=yes],[sh_facl=no])
1441	LIBS="$OLDLIBS"
1442	fi
1443
1444	if test x"$sh_facl" = xyes; then
1445	AC_DEFINE(USE_ACL, 1, [Define if you want ACL support.])
1446	LIBS="$LIBS $LIBACL"
1447	else
1448	if test "x$enable_posix_acl" != xcheck; then
1449	AC_MSG_FAILURE([--enable-posix-acl was given, but test for acl support failed])
1450	fi
1451	fi
1452	])
1453
1454	AC_DEFUN([sh_CHECK_XATTR],
1455	[
1456	AC_CHECK_HEADERS(attr/xattr.h)
1457	if test $ac_cv_header_attr_xattr_h = yes; then
1458
1459	AC_CHECK_LIB([attr], [getxattr], sh_lattr=yes, sh_lattr=no)
1460	if test x"$sh_lattr" = xyes; then
1461	LIBATTR=-lattr
1462	else
1463	LIBATTR=
1464	fi
1465
1466	OLDLIBS="$LIBS"
1467	LIBS="$LIBS $LIBATTR"
1468	AC_CHECK_FUNCS([getxattr lgetxattr fgetxattr],
1469	[sh_fattr=yes],[sh_fattr=no])
1470	LIBS="$OLDLIBS"
1471	fi
1472
1473	if test x"$sh_fattr" = xyes; then
1474	AC_DEFINE(USE_XATTR, 1, [Define if you want extended attributes support.])
1475	LIBS="$LIBS $LIBATTR"
1476	else
1477	if test "x$enable_selinux" != xcheck; then
1478	AC_MSG_FAILURE([--enable-selinux was given, but test for selinux support failed])
1479	fi
1480	fi
1481	])
1482
1483	dnl Autoconf macros for libprelude
1484	dnl $id$
1485
1486	# Modified for LIBPRELUDE -- Yoann Vandoorselaere
1487	# Modified for LIBGNUTLS -- nmav
1488	# Configure paths for LIBGCRYPT
1489	# Shamelessly stolen from the one of XDELTA by Owen Taylor
1490	# Werner Koch 99-12-09
1491
1492	dnl AM_PATH_LIBPRELUDE([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
1493	dnl Test for libprelude, and define LIBPRELUDE_PREFIX, LIBPRELUDE_CFLAGS, LIBPRELUDE_PTHREAD_CFLAGS,
1494	dnl LIBPRELUDE_LDFLAGS, and LIBPRELUDE_LIBS
1495	dnl
1496	AC_DEFUN([AM_PATH_LIBPRELUDE],
1497	[dnl
1498	dnl Get the cflags and libraries from the libprelude-config script
1499	dnl
1500	dnl AC_ARG_WITH(libprelude-prefix,
1501	dnl [ --with-libprelude-prefix=PFX Prefix where libprelude is installed (optional)],
1502	dnl libprelude_config_prefix="$withval", libprelude_config_prefix="")
1503	dnl
1504	dnl if test x$libprelude_config_prefix != x ; then
1505	dnl if test x${LIBPRELUDE_CONFIG+set} != xset ; then
1506	dnl LIBPRELUDE_CONFIG=$libprelude_config_prefix/bin/libprelude-config
1507	dnl fi
1508	dnl fi
1509	dnl
1510	dnl AC_PATH_PROG(LIBPRELUDE_CONFIG, libprelude-config, no)
1511	min_libprelude_version=ifelse([$1], ,0.1.0,$1)
1512	AC_MSG_CHECKING(for libprelude - version >= $min_libprelude_version)
1513	no_libprelude=""
1514	if test "$LIBPRELUDE_CONFIG" = "no" ; then
1515	no_libprelude=yes
1516	else
1517	LIBPRELUDE_CFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --cflags`
1518	LIBPRELUDE_PTHREAD_CFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --pthread-cflags`
1519	LIBPRELUDE_LDFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --ldflags`
1520	LIBPRELUDE_LIBS=`$LIBPRELUDE_CONFIG $libprelude_config_args --libs`
1521	LIBPRELUDE_PREFIX=`$LIBPRELUDE_CONFIG $libprelude_config_args --prefix`
1522	LIBPRELUDE_CONFIG_PREFIX=`$LIBPRELUDE_CONFIG $libprelude_config_args --config-prefix`
1523	libprelude_config_version=`$LIBPRELUDE_CONFIG $libprelude_config_args --version`
1524
1525
1526	ac_save_CFLAGS="$CFLAGS"
1527	ac_save_LDFLAGS="$LDFLAGS"
1528	ac_save_LIBS="$LIBS"
1529	CFLAGS="$CFLAGS $LIBPRELUDE_CFLAGS"
1530	LDFLAGS="$LDFLAGS $LIBPRELUDE_LDFLAGS"
1531	LIBS="$LIBS $LIBPRELUDE_LIBS"
1532	dnl
1533	dnl Now check if the installed libprelude is sufficiently new. Also sanity
1534	dnl checks the results of libprelude-config to some extent
1535	dnl
1536	rm -f conf.libpreludetest
1537	AC_TRY_RUN([
1538	#include <stdio.h>
1539	#include <stdlib.h>
1540	#include <string.h>
1541	#include <libprelude/prelude.h>
1542
1543	int
1544	main ()
1545	{
1546	system ("touch conf.libpreludetest");
1547
1548	if( strcmp( prelude_check_version(NULL), "$libprelude_config_version" ) )
1549	{
1550	printf("\n*** 'libprelude-config --version' returned %s, but LIBPRELUDE (%s)\n",
1551	"$libprelude_config_version", prelude_check_version(NULL) );
1552	printf("*** was found! If libprelude-config was correct, then it is best\n");
1553	printf("*** to remove the old version of LIBPRELUDE. You may also be able to fix the error\n");
1554	printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
1555	printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
1556	printf("*** required on your system.\n");
1557	printf("*** If libprelude-config was wrong, set the environment variable LIBPRELUDE_CONFIG\n");
1558	printf("*** to point to the correct copy of libprelude-config, and remove the file config.cache\n");
1559	printf("*** before re-running configure\n");
1560	}
1561	else if ( strcmp(prelude_check_version(NULL), LIBPRELUDE_VERSION ) )
1562	{
1563	printf("\n*** LIBPRELUDE header file (version %s) does not match\n", LIBPRELUDE_VERSION);
1564	printf("*** library (version %s)\n", prelude_check_version(NULL) );
1565	}
1566	else
1567	{
1568	if ( prelude_check_version( "$min_libprelude_version" ) )
1569	{
1570	return 0;
1571	}
1572	else
1573	{
1574	printf("no\n*** An old version of LIBPRELUDE (%s) was found.\n",
1575	prelude_check_version(NULL) );
1576	printf("*** You need a version of LIBPRELUDE newer than %s. The latest version of\n",
1577	"$min_libprelude_version" );
1578	printf("*** LIBPRELUDE is always available from http://www.prelude-ids.org/download/releases.\n");
1579	printf("*** \n");
1580	printf("*** If you have already installed a sufficiently new version, this error\n");
1581	printf("*** probably means that the wrong copy of the libprelude-config shell script is\n");
1582	printf("*** being found. The easiest way to fix this is to remove the old version\n");
1583	printf("*** of LIBPRELUDE, but you can also set the LIBPRELUDE_CONFIG environment to point to the\n");
1584	printf("*** correct copy of libprelude-config. (In this case, you will have to\n");
1585	printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
1586	printf("*** so that the correct libraries are found at run-time))\n");
1587	}
1588	}
1589	return 1;
1590	}
1591	],, no_libprelude=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
1592	CFLAGS="$ac_save_CFLAGS"
1593	LIBS="$ac_save_LIBS"
1594	LDFLAGS="$ac_save_LDFLAGS"
1595	fi
1596
1597	if test "x$no_libprelude" = x ; then
1598	AC_MSG_RESULT(yes)
1599	ifelse([$2], , :, [$2])
1600	else
1601	if test -f conf.libpreludetest ; then
1602	:
1603	else
1604	AC_MSG_RESULT(no)
1605	fi
1606	if test "$LIBPRELUDE_CONFIG" = "no" ; then
1607	echo "*** The libprelude-config script installed by LIBPRELUDE could not be found"
1608	echo "*** If LIBPRELUDE was installed in PREFIX, make sure PREFIX/bin is in"
1609	echo "*** your path, or set the LIBPRELUDE_CONFIG environment variable to the"
1610	echo "*** full path to libprelude-config."
1611	else
1612	if test -f conf.libpreludetest ; then
1613	:
1614	else
1615	echo "*** Could not run libprelude test program, checking why..."
1616	CFLAGS="$CFLAGS $LIBPRELUDE_CFLAGS"
1617	LDFLAGS="$LDFLAGS $LIBPRELUDE_LDFLAGS"
1618	LIBS="$LIBS $LIBPRELUDE_LIBS"
1619	AC_TRY_LINK([
1620	#include <stdio.h>
1621	#include <stdlib.h>
1622	#include <string.h>
1623	#include <libprelude/prelude.h>
1624	], [ return !!prelude_check_version(NULL); ],
1625	[ echo "*** The test program compiled, but did not run. This usually means"
1626	echo "*** that the run-time linker is not finding LIBPRELUDE or finding the wrong"
1627	echo "*** version of LIBPRELUDE. If it is not finding LIBPRELUDE, you'll need to set your"
1628	echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
1629	echo "*** to the installed location Also, make sure you have run ldconfig if that"
1630	echo "*** is required on your system"
1631	echo "***"
1632	echo "*** If you have an old version installed, it is best to remove it, although"
1633	echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
1634	echo "***" ],
1635	[ echo "*** The test program failed to compile or link. See the file config.log for the"
1636	echo "*** exact error that occured. This usually means LIBPRELUDE was incorrectly installed"
1637	echo "*** or that you have moved LIBPRELUDE since it was installed. In the latter case, you"
1638	echo "*** may want to edit the libprelude-config script: $LIBPRELUDE_CONFIG" ])
1639	CFLAGS="$ac_save_CFLAGS"
1640	LDFLAGS="$ac_save_LDFLAGS"
1641	LIBS="$ac_save_LIBS"
1642	fi
1643	fi
1644	LIBPRELUDE_CFLAGS=""
1645	LIBPRELUDE_LDFLAGS=""
1646	LIBPRELUDE_LIBS=""
1647	ifelse([$3], , :, [$3])
1648	fi
1649	rm -f conf.libpreludetest
1650	AC_SUBST(LIBPRELUDE_CFLAGS)
1651	AC_SUBST(LIBPRELUDE_PTHREAD_CFLAGS)
1652	AC_SUBST(LIBPRELUDE_LDFLAGS)
1653	AC_SUBST(LIBPRELUDE_LIBS)
1654	AC_SUBST(LIBPRELUDE_PREFIX)
1655	AC_SUBST(LIBPRELUDE_CONFIG_PREFIX)
1656	])
1657
1658
1659	##### http://autoconf-archive.cryp.to/acx_pthread.html
1660	#
1661	# SYNOPSIS
1662	#
1663	# ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
1664	#
1665	# DESCRIPTION
1666	#
1667	# This macro figures out how to build C programs using POSIX threads.
1668	# It sets the PTHREAD_LIBS output variable to the threads library and
1669	# linker flags, and the PTHREAD_CFLAGS output variable to any special
1670	# C compiler flags that are needed. (The user can also force certain
1671	# compiler flags/libs to be tested by setting these environment
1672	# variables.)
1673	#
1674	# Also sets PTHREAD_CC to any special C compiler that is needed for
1675	# multi-threaded programs (defaults to the value of CC otherwise).
1676	# (This is necessary on AIX to use the special cc_r compiler alias.)
1677	#
1678	# NOTE: You are assumed to not only compile your program with these
1679	# flags, but also link it with them as well. e.g. you should link
1680	# with $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS
1681	# $LIBS
1682	#
1683	# If you are only building threads programs, you may wish to use
1684	# these variables in your default LIBS, CFLAGS, and CC:
1685	#
1686	# LIBS="$PTHREAD_LIBS $LIBS"
1687	# CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1688	# CC="$PTHREAD_CC"
1689	#
1690	# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute
1691	# constant has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to
1692	# that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
1693	#
1694	# ACTION-IF-FOUND is a list of shell commands to run if a threads
1695	# library is found, and ACTION-IF-NOT-FOUND is a list of commands to
1696	# run it if it is not found. If ACTION-IF-FOUND is not specified, the
1697	# default action will define HAVE_PTHREAD.
1698	#
1699	# Please let the authors know if this macro fails on any platform, or
1700	# if you have any other suggestions or comments. This macro was based
1701	# on work by SGJ on autoconf scripts for FFTW (http://www.fftw.org/)
1702	# (with help from M. Frigo), as well as ac_pthread and hb_pthread
1703	# macros posted by Alejandro Forero Cuervo to the autoconf macro
1704	# repository. We are also grateful for the helpful feedback of
1705	# numerous users.
1706	#
1707	# LAST MODIFICATION
1708	#
1709	# 2007-07-29
1710	#
1711	# COPYLEFT
1712	#
1713	# Copyright (c) 2007 Steven G. Johnson <stevenj@alum.mit.edu>
1714	#
1715	# This program is free software: you can redistribute it and/or
1716	# modify it under the terms of the GNU General Public License as
1717	# published by the Free Software Foundation, either version 3 of the
1718	# License, or (at your option) any later version.
1719	#
1720	# This program is distributed in the hope that it will be useful, but
1721	# WITHOUT ANY WARRANTY; without even the implied warranty of
1722	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1723	# General Public License for more details.
1724	#
1725	# You should have received a copy of the GNU General Public License
1726	# along with this program. If not, see
1727	# <http://www.gnu.org/licenses/>.
1728	#
1729	# As a special exception, the respective Autoconf Macro's copyright
1730	# owner gives unlimited permission to copy, distribute and modify the
1731	# configure scripts that are the output of Autoconf when processing
1732	# the Macro. You need not follow the terms of the GNU General Public
1733	# License when using or distributing such scripts, even though
1734	# portions of the text of the Macro appear in them. The GNU General
1735	# Public License (GPL) does govern all other use of the material that
1736	# constitutes the Autoconf Macro.
1737	#
1738	# This special exception to the GPL applies to versions of the
1739	# Autoconf Macro released by the Autoconf Macro Archive. When you
1740	# make and distribute a modified version of the Autoconf Macro, you
1741	# may extend this special exception to the GPL to apply to your
1742	# modified version as well.
1743
1744	AC_DEFUN([ACX_PTHREAD], [
1745	AC_REQUIRE([AC_CANONICAL_HOST])
1746	AC_LANG_SAVE
1747	AC_LANG_C
1748	acx_pthread_ok=no
1749
1750	# We used to check for pthread.h first, but this fails if pthread.h
1751	# requires special compiler flags (e.g. on True64 or Sequent).
1752	# It gets checked for in the link test anyway.
1753
1754	# First of all, check if the user has set any of the PTHREAD_LIBS,
1755	# etcetera environment variables, and if threads linking works using
1756	# them:
1757	if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
1758	save_CFLAGS="$CFLAGS"
1759	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1760	save_LIBS="$LIBS"
1761	LIBS="$PTHREAD_LIBS $LIBS"
1762	AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
1763	AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
1764	AC_MSG_RESULT($acx_pthread_ok)
1765	if test x"$acx_pthread_ok" = xno; then
1766	PTHREAD_LIBS=""
1767	PTHREAD_CFLAGS=""
1768	fi
1769	LIBS="$save_LIBS"
1770	CFLAGS="$save_CFLAGS"
1771	fi
1772
1773	# We must check for the threads library under a number of different
1774	# names; the ordering is very important because some systems
1775	# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
1776	# libraries is broken (non-POSIX).
1777
1778	# Create a list of thread flags to try. Items starting with a "-" are
1779	# C compiler flags, and other items are library names, except for "none"
1780	# which indicates that we try without any flags at all, and "pthread-config"
1781	# which is a program returning the flags for the Pth emulation library.
1782
1783	acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
1784
1785	# The ordering is (sometimes) important. Some notes on the
1786	# individual items follow:
1787
1788	# pthreads: AIX (must check this before -lpthread)
1789	# none: in case threads are in libc; should be tried before -Kthread and
1790	# other compiler flags to prevent continual compiler warnings
1791	# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
1792	# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
1793	# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
1794	# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
1795	# -pthreads: Solaris/gcc
1796	# -mthreads: Mingw32/gcc, Lynx/gcc
1797	# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
1798	# doesn't hurt to check since this sometimes defines pthreads too;
1799	# also defines -D_REENTRANT)
1800	# ... -mt is also the pthreads flag for HP/aCC
1801	# pthread: Linux, etcetera
1802	# --thread-safe: KAI C++
1803	# pthread-config: use pthread-config program (for GNU Pth library)
1804
1805	case "${host_cpu}-${host_os}" in
1806	solaris)
1807
1808	# On Solaris (at least, for some versions), libc contains stubbed
1809	# (non-functional) versions of the pthreads routines, so link-based
1810	# tests will erroneously succeed. (We need to link with -pthreads/-mt/
1811	# -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
1812	# a function called by this macro, so we could check for that, but
1813	# who knows whether they'll stub that too in a future libc.) So,
1814	# we'll just look for -pthreads and -lpthread first:
1815
1816	acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
1817	;;
1818	esac
1819
1820	if test x"$acx_pthread_ok" = xno; then
1821	for flag in $acx_pthread_flags; do
1822
1823	case $flag in
1824	none)
1825	AC_MSG_CHECKING([whether pthreads work without any flags])
1826	;;
1827
1828	-pthread)
1829	AC_MSG_CHECKING([whether pthreads work with $flag])
1830	PTHREAD_CFLAGS="$flag"
1831	;;
1832
1833	-*)
1834	AC_MSG_CHECKING([whether pthreads work with $flag])
1835	PTHREAD_CFLAGS="$flag"
1836	;;
1837
1838	pthread-config)
1839	AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
1840	if test x"$acx_pthread_config" = xno; then continue; fi
1841	PTHREAD_CFLAGS="`pthread-config --cflags`"
1842	PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
1843	;;
1844
1845	*)
1846	AC_MSG_CHECKING([for the pthreads library -l$flag])
1847	PTHREAD_LIBS="-l$flag"
1848	;;
1849	esac
1850
1851	save_LIBS="$LIBS"
1852	save_CFLAGS="$CFLAGS"
1853	save_LDFLAGS="$LDFLAGS"
1854	LIBS="$PTHREAD_LIBS $LIBS"
1855	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1856	LDFLAGS="$LDFLAGS $PTHREAD_CFLAGS"
1857
1858	# Check for various functions. We must include pthread.h,
1859	# since some functions may be macros. (On the Sequent, we
1860	# need a special flag -Kthread to make this header compile.)
1861	# We check for pthread_join because it is in -lpthread on IRIX
1862	# while pthread_create is in libc. We check for pthread_attr_init
1863	# due to DEC craziness with -lpthreads. We check for
1864	# pthread_cleanup_push because it is one of the few pthread
1865	# functions on Solaris that doesn't have a non-functional libc stub.
1866	# We try pthread_create on general principles.
1867	AC_TRY_LINK([#include <pthread.h>],
1868	[pthread_t th; pthread_join(th, 0);
1869	pthread_attr_init(0); pthread_cleanup_push(0, 0);
1870	pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
1871	[acx_pthread_ok=yes])
1872
1873	LIBS="$save_LIBS"
1874	LDFLAGS="$save_LDFLAGS"
1875	CFLAGS="$save_CFLAGS"
1876
1877	AC_MSG_RESULT($acx_pthread_ok)
1878	if test "x$acx_pthread_ok" = xyes; then
1879	break;
1880	fi
1881
1882	PTHREAD_LIBS=""
1883	PTHREAD_CFLAGS=""
1884	done
1885	fi
1886
1887	# Various other checks:
1888	if test "x$acx_pthread_ok" = xyes; then
1889	save_LIBS="$LIBS"
1890	LIBS="$PTHREAD_LIBS $LIBS"
1891	save_CFLAGS="$CFLAGS"
1892	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1893
1894	# Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
1895	AC_MSG_CHECKING([for joinable pthread attribute])
1896	attr_name=unknown
1897	for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
1898	AC_TRY_LINK([#include <pthread.h>], [int attr=$attr; return attr;],
1899	[attr_name=$attr; break])
1900	done
1901	AC_MSG_RESULT($attr_name)
1902	if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
1903	AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
1904	[Define to necessary symbol if this constant
1905	uses a non-standard name on your system.])
1906	fi
1907
1908	# Solaris lossage: default is obsolete semantics for getpwnam_r,
1909	# getpwuid_r, getgrgid_r, unless _POSIX_PTHREAD_SEMANTICS is defined
1910	AC_MSG_CHECKING([if more special flags are required for pthreads])
1911	flag=no
1912	case "${host_cpu}-${host_os}" in
1913	-aix \| -freebsd \| -darwin) flag="-D_THREAD_SAFE";;
1914	-osf \| -hpux) flag="-D_REENTRANT";;
1915	solaris) flag="-D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT";;
1916	esac
1917	AC_MSG_RESULT(${flag})
1918	if test "x$flag" != xno; then
1919	PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
1920	fi
1921
1922	# Detect PTHREAD_MUTEX_RECURSIVE
1923	AC_MSG_CHECKING([for recursive mutexes])
1924	mutex_recursive=no
1925	AC_TRY_LINK([
1926	#define _XOPEN_SOURCE 500
1927	#include <pthread.h>], [
1928	pthread_mutexattr_t mta;
1929	pthread_mutexattr_settype(&mta, PTHREAD_MUTEX_RECURSIVE);
1930	return 0;],[mutex_recursive=yes])
1931	if test "x$mutex_recursive" = "xyes"
1932	then
1933	AC_DEFINE(HAVE_PTHREAD_MUTEX_RECURSIVE,1,[Define if you have recursive mutexes.])
1934	fi
1935	AC_MSG_RESULT($mutex_recursive)
1936
1937	LIBS="$save_LIBS"
1938	CFLAGS="$save_CFLAGS"
1939
1940	# More AIX lossage: must compile with xlc_r or cc_r
1941	if test x"$GCC" != xyes; then
1942	AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC})
1943	else
1944	PTHREAD_CC=$CC
1945	fi
1946	else
1947	PTHREAD_CC="$CC"
1948	fi
1949
1950	if test x"$acx_pthread_ok" = xyes; then
1951	PTHREAD_CFLAGS="${PTHREAD_CFLAGS} -DUSE_MALLOC_LOCK=1"
1952	fi
1953
1954	AC_SUBST(PTHREAD_LIBS)
1955	AC_SUBST(PTHREAD_CFLAGS)
1956	AC_SUBST(PTHREAD_LDFLAGS)
1957	AC_SUBST(PTHREAD_CC)
1958
1959	# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
1960	if test x"$acx_pthread_ok" = xyes; then
1961	ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
1962	:
1963	else
1964	acx_pthread_ok=no
1965	$2
1966	fi
1967	AC_LANG_RESTORE
1968	])dnl ACX_PTHREAD
1969
1970
1971
1972
1973	dnl Copyright Â© 2004 Loic Dachary <loic@senga.org>
1974	dnl
1975	dnl This program is free software; you can redistribute it and/or modify
1976	dnl it under the terms of the GNU General Public License as published by
1977	dnl the Free Software Foundation; either version 2 of the License, or (at
1978	dnl your option) any later version.
1979	dnl
1980	dnl Use ZLIB_HOME instead of option
1981
1982	AC_DEFUN([CHECK_ZLIB],[
1983
1984	if test "x${ZLIB_HOME}" = "x"; then
1985	ZLIB_HOME=/usr/local
1986	if test ! -f "${ZLIB_HOME}/include/zlib.h"
1987	then
1988	ZLIB_HOME=/usr
1989	fi
1990	fi
1991
1992	zlib_found=no
1993
1994	ZLIB_OLD_LDFLAGS=$LDFLAGS
1995	ZLIB_OLD_CPPFLAGS=$LDFLAGS
1996	if test "x${ZLIB_HOME}" = "x/usr"; then
1997	:
1998	else
1999	LDFLAGS="$LDFLAGS -L${ZLIB_HOME}/lib"
2000	CPPFLAGS="$CPPFLAGS -I${ZLIB_HOME}/include"
2001	fi
2002	AC_LANG_SAVE
2003	AC_LANG_C
2004	AC_CHECK_LIB(z, inflateEnd, [zlib_cv_libz=yes], [zlib_cv_libz=no])
2005	AC_CHECK_HEADER(zlib.h, [zlib_cv_zlib_h=yes], [zlib_cv_zlib_h=no])
2006	AC_LANG_RESTORE
2007	if test "$zlib_cv_libz" = "yes" -a "$zlib_cv_zlib_h" = "yes"
2008	then
2009	#
2010	# If both library and header were found, use them
2011	#
2012	AC_CHECK_LIB(z, inflateEnd)
2013	AC_MSG_CHECKING([zlib in ${ZLIB_HOME}])
2014	AC_MSG_RESULT(ok)
2015	AC_CHECK_FUNCS([compressBound])
2016	zlib_found=yes
2017	else
2018	#
2019	# If either header or library was not found, revert and bomb
2020	#
2021	AC_MSG_CHECKING(zlib in ${ZLIB_HOME})
2022	LDFLAGS="$ZLIB_OLD_LDFLAGS"
2023	CPPFLAGS="$ZLIB_OLD_CPPFLAGS"
2024	AC_MSG_RESULT(failed)
2025	AC_MSG_WARN([zlib not found in ZLIB_HOME, /usr/local, or /usr])
2026	fi
2027
2028	])
2029
2030	# SH_PROG_LD
2031	# ----------
2032	# find the pathname to the GNU or non-GNU linker
2033	AC_DEFUN([SH_PROG_LD],
2034	[
2035	AC_REQUIRE([AC_PROG_CC])dnl
2036	AC_REQUIRE([AC_CANONICAL_HOST])dnl
2037	AC_REQUIRE([AC_CANONICAL_BUILD])dnl
2038	ac_prog=ld
2039	if test "$GCC" = yes; then
2040	# Check if gcc -print-prog-name=ld gives a path.
2041	AC_MSG_CHECKING([for ld used by $CC])
2042	case $host in
2043	--mingw*)
2044	# gcc leaves a trailing carriage return which upsets mingw
2045	ac_prog=`($CC -print-prog-name=ld) 2>&5 \| tr -d '\015'` ;;
2046	*)
2047	ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
2048	esac
2049	case $ac_prog in
2050	# Accept absolute paths.
2051	[[\\/]]* \| ?:[[\\/]]*)
2052	re_direlt='/[[^/]][[^/]]*/\.\./'
2053	# Canonicalize the pathname of ld
2054	ac_prog=`echo $ac_prog\| sed 's%\\\\%/%g'`
2055	while echo $ac_prog \| grep "$re_direlt" > /dev/null 2>&1; do
2056	ac_prog=`echo $ac_prog\| sed "s%$re_direlt%/%"`
2057	done
2058	test -z "$LD" && LD="$ac_prog"
2059	;;
2060	"")
2061	# If it fails, then pretend we aren't using GCC.
2062	ac_prog=ld
2063	;;
2064	*)
2065	# If it is relative, then search for the first ld in PATH.
2066	with_gnu_ld=unknown
2067	;;
2068	esac
2069	else
2070	AC_MSG_CHECKING([for ld])
2071	fi
2072	AC_CACHE_VAL(lt_cv_path_LD,
2073	[if test -z "$LD"; then
2074	lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
2075	for ac_dir in $PATH; do
2076	IFS="$lt_save_ifs"
2077	test -z "$ac_dir" && ac_dir=.
2078	if test -f "$ac_dir/$ac_prog" \|\| test -f "$ac_dir/$ac_prog$ac_exeext"; then
2079	lt_cv_path_LD="$ac_dir/$ac_prog"
2080	# Check to see if the program is GNU ld. I'd rather use --version,
2081	# but apparently some variants of GNU ld only accept -v.
2082	# Break only if it was the GNU/non-GNU ld that we prefer.
2083	case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
2084	GNU \| 'with BFD')
2085	with_gnu_ld=yes
2086	;;
2087	*)
2088	with_gnu_ld=no
2089	;;
2090	esac
2091	fi
2092	done
2093	IFS="$lt_save_ifs"
2094	else
2095	lt_cv_path_LD="$LD" # Let the user override the test with a path.
2096	fi])
2097	LD="$lt_cv_path_LD"
2098	if test -n "$LD"; then
2099	AC_MSG_RESULT($LD)
2100	else
2101	AC_MSG_RESULT(no)
2102	fi
2103	test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
2104	AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
2105	[# I'd rather use --version here, but apparently some GNU lds only accept -v.
2106	case `$LD -v 2>&1 </dev/null` in
2107	GNU \| 'with BFD')
2108	lt_cv_prog_gnu_ld=yes
2109	;;
2110	*)
2111	lt_cv_prog_gnu_ld=no
2112	;;
2113	esac])
2114	with_gnu_ld=$lt_cv_prog_gnu_ld
2115	])# AC_PROG_LD_GNU
2116
2117	# SH_STRFTIME_Z
2118	# -------------
2119	# check whether strftime supports %z
2120	AC_DEFUN([SH_STRFTIME_Z],
2121	[
2122	AC_MSG_CHECKING([whether strftime supports %z])
2123	AC_TRY_RUN([
2124	#include <time.h>
2125	#include <string.h>
2126	int main()
2127	{
2128	struct tm tm;
2129	char tt[64];
2130	memset(&tm, 0, sizeof(tm));
2131	strftime(tt, sizeof(tt), "%z", &tm);
2132
2133	if (strlen(tt) != 5) return 1;
2134	return 0;
2135	}
2136	],
2137	[
2138	AC_MSG_RESULT([yes])
2139	AC_DEFINE(HAVE_STRFTIME_Z, 1, [strftime supports %z])
2140	],
2141	[
2142	AC_MSG_RESULT([no])
2143	],[
2144	AC_MSG_RESULT([no])
2145	])])
2146
2147	AC_DEFUN([SH_GCC_VERSION], [
2148	GCC_VERSION=""
2149	gcc_VERSION_MAJOR=0
2150	gcc_VERSION_MINOR=0
2151	AC_MSG_CHECKING([for gcc version])
2152	if test "x$GCC" = "xyes"
2153	then
2154	$CC -dumpversion >/dev/null 2>&1
2155	if test $? -eq 0
2156	then
2157	GCC_VERSION=`$CC -dumpversion`
2158	gcc_VERSION_MAJOR=`echo $GCC_VERSION \| cut -d'.' -f1`
2159	gcc_VERSION_MINOR=`echo $GCC_VERSION \| cut -d'.' -f2`
2160	AC_DEFINE_UNQUOTED(GCC_VERSION_MAJOR, [${gcc_VERSION_MAJOR}], [gcc version major])
2161	AC_DEFINE_UNQUOTED(GCC_VERSION_MINOR, [${gcc_VERSION_MINOR}], [gcc version minor])
2162	AC_MSG_RESULT([$GCC_VERSION])
2163	else
2164	AC_MSG_RESULT([$CC -dumpversion working])
2165	fi
2166	else
2167	AC_MSG_RESULT([compiler is not gcc])
2168	fi
2169	])
2170
2171
2172
2173	dnl -wedit:notab- Please keep this as the last line.
2174

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