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source: trunk/aclocal.m4@ 154

Last change on this file since 154 was 153, checked in by katerina, 17 years ago
Use -D_FORTIFY_SOURCE=1 -fstack-protector-all if supported. Compiler warnings fixed.
File size: 56.4 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([#include <stdlib.h>
253	#include <sys/types.h>], [
254	#undef $1
255	int a = sizeof($1);
256	], sh_cv_typedef=yes, sh_cv_typedef=no )])
257	AC_MSG_RESULT($sh_cv_typedef)
258	if test "$sh_cv_typedef" = yes; then
259	AC_DEFINE($2)
260	sh_$2=yes
261	else
262	sh_$2=no
263	fi
264	])
265
266
267
268	dnl **********************
269	dnl * va_copy checks *
270	dnl **********************
271	AC_DEFUN([SL_CHECK_VA_COPY],
272	[AC_MSG_CHECKING(for va_copy())
273	AC_CACHE_VAL(sh_cv_va_copy,[
274	AC_TRY_RUN([
275	#include <stdarg.h>
276	void f (int i, ...) {
277	va_list args1, args2;
278	va_start (args1, i);
279	va_copy (args2, args1);
280	if (va_arg (args2, int) != 42)
281	exit (1);
282	if (va_arg (args1, int) != 42)
283	exit (1);
284	va_end (args1); va_end (args2);
285	}
286	int main() {
287	f (0, 42);
288	return 0;
289	}],
290	sh_cv_va_copy=yes
291	,
292	sh_cv_va_copy=no
293	,
294	sh_cv_va_copy=no)
295	])
296	AC_MSG_RESULT($sh_cv_va_copy)
297	AC_MSG_CHECKING(for __va_copy())
298	AC_CACHE_VAL(sh_cv___va_copy,[
299	AC_TRY_RUN([
300	#include <stdarg.h>
301	void f (int i, ...) {
302	va_list args1, args2;
303	va_start (args1, i);
304	__va_copy (args2, args1);
305	if (va_arg (args2, int) != 42)
306	exit (1);
307	if (va_arg (args1, int) != 42)
308	exit (1);
309	va_end (args1); va_end (args2);
310	}
311	int main() {
312	f (0, 42);
313	return 0;
314	}],
315	sh_cv___va_copy=yes
316	,
317	sh_cv___va_copy=no
318	,
319	sh_cv___va_copy=no)
320	])
321	AC_MSG_RESULT($sh_cv___va_copy)
322	AC_MSG_CHECKING(whether va_lists can be copied by value)
323	AC_CACHE_VAL(sh_cv_va_val_copy,[
324	AC_TRY_RUN([
325	#include <stdarg.h>
326	void f (int i, ...) {
327	va_list args1, args2;
328	va_start (args1, i);
329	args2 = args1;
330	if (va_arg (args2, int) != 42)
331	exit (1);
332	if (va_arg (args1, int) != 42)
333	exit (1);
334	va_end (args1); va_end (args2);
335	}
336	int main() {
337	f (0, 42);
338	return 0;
339	}],
340	sh_cv_va_val_copy=yes
341	,
342	sh_cv_va_val_copy=no
343	,
344	sh_cv_va_val_copy=no)
345	])
346	if test "x$sh_cv_va_copy" = "xyes"; then
347	AC_DEFINE(VA_COPY, va_copy)
348	else if test "x$sh_cv___va_copy" = "xyes"; then
349	AC_DEFINE(VA_COPY, __va_copy)
350	fi
351	fi
352	if test "x$sh_cv_va_val_copy" = "xno"; then
353	AC_DEFINE(VA_COPY_AS_ARRAY)
354	fi
355	AC_MSG_RESULT($sh_cv_va_val_copy)
356	])
357
358
359	dnl SH_INIT_PARSE_ARGS()
360	m4_define([SH_INIT_PARSE_ARGS],
361	[
362	m4_divert_push([PARSE_ARGS])dnl
363
364	as_cr_letters='abcdefghijklmnopqrstuvwxyz'
365	as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
366	as_cr_Letters=$as_cr_letters$as_cr_LETTERS
367	as_cr_digits='0123456789'
368	as_cr_alnum=$as_cr_Letters$as_cr_digits
369
370	# Sed expression to map a string onto a valid CPP name.
371	as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[[^_$as_cr_alnum]]%_%g"
372
373	as_tr_sh="eval sed 'y%*+%pp%;s%[[^_$as_cr_alnum]]%_%g'"
374	# IFS
375	# We need space, tab and new line, in precisely that order.
376	as_nl='
377	'
378	IFS=" $as_nl"
379
380	# CDPATH.
381	$as_unset CDPATH \|\| test "${CDPATH+set}" != set \|\| { CDPATH=$PATH_SEPARATOR; export CDPATH; }
382
383
384	# Initialize some variables set by options.
385	ac_init_help=
386	ac_init_version=false
387	# The variables have the same names as the options, with
388	# dashes changed to underlines.
389	cache_file=/dev/null
390	AC_SUBST(exec_prefix, NONE)dnl
391	no_create=
392	no_recursion=
393	AC_SUBST(prefix, NONE)dnl
394	program_prefix=NONE
395	program_suffix=NONE
396	AC_SUBST(program_transform_name, [s,x,x,])dnl
397	silent=
398	site=
399	srcdir=
400	verbose=
401	x_includes=NONE
402	x_libraries=NONE
403	DESTDIR=
404	SH_ENABLE_OPTS="db-reload xml-log message-queue login-watch process-check port-check mounts-check userfiles debug ptrace static network udp nocl stealth micro-stealth install-name identity khide suidcheck base largefile mail external-scripts encrypt srp"
405	SH_WITH_OPTS="prelude libprelude-prefix database libwrap cflags libs console altconsole timeserver alttimeserver rnd egd-socket port logserver altlogserver kcheck gpg checksum fp recipient sender trusted tmp-dir config-file log-file pid-file state-dir data-file html-file"
406
407	# Installation directory options.
408	# These are left unexpanded so users can "make install exec_prefix=/foo"
409	# and all the variables that are supposed to be based on exec_prefix
410	# by default will actually change.
411	dnl Use braces instead of parens because sh, perl, etc. also accept them.
412	sbindir='${exec_prefix}/sbin'
413	sysconfdir='${prefix}/etc'
414	localstatedir='${prefix}/var'
415	mandir='${prefix}/share/man'
416
417	AC_SUBST([sbindir], ['${exec_prefix}/sbin'])dnl
418	AC_SUBST([sysconfdir], ['${prefix}/etc'])dnl
419	AC_SUBST([localstatedir], ['${prefix}/var'])dnl
420	AC_SUBST([mandir], ['${prefix}/share/man'])dnl
421
422
423	# Initialize some other variables.
424	subdirs=
425	MFLAGS= MAKEFLAGS=
426	SHELL=${CONFIG_SHELL-/bin/sh}
427	# Maximum number of lines to put in a shell here document.
428	ac_max_here_lines=12
429
430	ac_prev=
431	for ac_option
432	do
433
434	# If the previous option needs an argument, assign it.
435	if test -n "$ac_prev"; then
436	eval "$ac_prev=\$ac_option"
437	ac_prev=
438	continue
439	fi
440
441	case "$ac_option" in
442	changequote(, )dnl
443	=) ac_optarg=`echo "$ac_option" \| sed 's/[-_a-zA-Z0-9]*=//'` ;;
444	changequote([, ])dnl
445	*) ac_optarg= ;;
446	esac
447
448	# Accept the important Cygnus configure options, so we can diagnose typos.
449
450	case "$ac_option" in
451
452	-build \| --build \| --buil \| --bui \| --bu)
453	ac_prev=build_alias ;;
454	-build=* \| --build=* \| --buil=* \| --bui=* \| --bu=*)
455	build_alias="$ac_optarg" ;;
456
457	-cache-file \| --cache-file \| --cache-fil \| --cache-fi \
458	\| --cache-f \| --cache- \| --cache \| --cach \| --cac \| --ca \| --c)
459	ac_prev=cache_file ;;
460	-cache-file=* \| --cache-file=* \| --cache-fil=* \| --cache-fi=* \
461	\| --cache-f=* \| --cache-=* \| --cache=* \| --cach=* \| --cac=* \| --ca=* \| --c=*)
462	cache_file="$ac_optarg" ;;
463
464	--config-cache \| -C)
465	cache_file=config.cache ;;
466
467	-disable-* \| --disable-*)
468	ac_feature=`expr "x$ac_option" : 'x-disable-\(.\)'`
469	# Reject names that are not valid shell variable names.
470	expr "x$ac_feature" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
471	AC_MSG_ERROR([invalid feature name: $ac_feature])
472	ac_feature=`echo $ac_feature \| sed 's/-/_/g'`
473	ac_enable_check_opt=no
474	for f in ${SH_ENABLE_OPTS}
475	do
476	f=`echo $f \| sed 's/-/_/g'`
477	if test x${f} = x"${ac_feature}"
478	then
479	ac_enable_check_opt=yes
480	fi
481	done
482	if test x${ac_enable_check_opt} = xno
483	then
484	AC_MSG_ERROR([unrecognized option: $ac_option
485	Try `$[0] --help' for more information.])
486	fi
487	eval "enable_$ac_feature=no" ;;
488
489	-enable-* \| --enable-*)
490	ac_feature=`expr "x$ac_option" : 'x-enable-\([[^=]]\)'`
491	# Reject names that are not valid shell variable names.
492	expr "x$ac_feature" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
493	AC_MSG_ERROR([invalid feature name: $ac_feature])
494	ac_feature=`echo $ac_feature \| sed 's/-/_/g'`
495	case $ac_option in
496	=) ac_optarg=`echo "$ac_optarg" \| sed "s/'/'\\\\\\\\''/g"`;;
497	*) ac_optarg=yes ;;
498	esac
499	ac_enable_check_opt=no
500	for f in ${SH_ENABLE_OPTS}
501	do
502	f=`echo $f \| sed 's/-/_/g'`
503	if test x${f} = x"${ac_feature}"
504	then
505	ac_enable_check_opt=yes
506	fi
507	done
508	if test x${ac_enable_check_opt} = xno
509	then
510	AC_MSG_ERROR([unrecognized option: $ac_option
511	Try `$[0] --help' for more information.])
512	fi
513	eval "enable_$ac_feature='$ac_optarg'" ;;
514
515	-exec-prefix \| --exec_prefix \| --exec-prefix \| --exec-prefi \
516	\| --exec-pref \| --exec-pre \| --exec-pr \| --exec-p \| --exec- \
517	\| --exec \| --exe \| --ex)
518	ac_prev=exec_prefix
519	ac_exec_prefix_set="yes"
520	;;
521	-exec-prefix=* \| --exec_prefix=* \| --exec-prefix=* \| --exec-prefi=* \
522	\| --exec-pref=* \| --exec-pre=* \| --exec-pr=* \| --exec-p=* \| --exec-=* \
523	\| --exec=* \| --exe=* \| --ex=*)
524	exec_prefix="$ac_optarg"
525	ac_exec_prefix_set="yes"
526	;;
527
528	-gas \| --gas \| --ga \| --g)
529	# Obsolete; use --with-gas.
530	with_gas=yes ;;
531
532	-help \| --help \| --hel \| --he \| -h)
533	ac_init_help=long ;;
534	-help=r* \| --help=r* \| --hel=r* \| --he=r* \| -hr*)
535	ac_init_help=recursive ;;
536	-help=s* \| --help=s* \| --hel=s* \| --he=s* \| -hs*)
537	ac_init_help=short ;;
538
539	-host \| --host \| --hos \| --ho)
540	ac_prev=host_alias ;;
541	-host=* \| --host=* \| --hos=* \| --ho=*)
542	host_alias="$ac_optarg" ;;
543
544	-localstatedir \| --localstatedir \| --localstatedi \| --localstated \
545	\| --localstate \| --localstat \| --localsta \| --localst \
546	\| --locals \| --local \| --loca \| --loc \| --lo)
547	ac_prev=localstatedir
548	ac_localstatedir_set="yes"
549	;;
550	-localstatedir=* \| --localstatedir=* \| --localstatedi=* \| --localstated=* \
551	\| --localstate=* \| --localstat=* \| --localsta=* \| --localst=* \
552	\| --locals=* \| --local=* \| --loca=* \| --loc=* \| --lo=*)
553	localstatedir="$ac_optarg"
554	ac_localstatedir_set="yes"
555	;;
556
557	-mandir \| --mandir \| --mandi \| --mand \| --man \| --ma \| --m)
558	ac_prev=mandir
559	ac_mandir_set="yes"
560	;;
561	-mandir=* \| --mandir=* \| --mandi=* \| --mand=* \| --man=* \| --ma=* \| --m=*)
562	mandir="$ac_optarg"
563	ac_mandir_set="yes"
564	;;
565
566	-nfp \| --nfp \| --nf)
567	# Obsolete; use --without-fp.
568	with_fp=no ;;
569
570	-no-create \| --no-create \| --no-creat \| --no-crea \| --no-cre \
571	\| --no-cr \| --no-c \| -n)
572	no_create=yes ;;
573
574	-no-recursion \| --no-recursion \| --no-recursio \| --no-recursi \
575	\| --no-recurs \| --no-recur \| --no-recu \| --no-rec \| --no-re \| --no-r)
576	no_recursion=yes ;;
577
578	-prefix \| --prefix \| --prefi \| --pref \| --pre \| --pr \| --p)
579	ac_prev=prefix
580	ac_prefix_set="yes"
581	;;
582	-prefix=* \| --prefix=* \| --prefi=* \| --pref=* \| --pre=* \| --pr=* \| --p=*)
583	prefix="$ac_optarg"
584	ac_prefix_set="yes"
585	;;
586
587	-q \| -quiet \| --quiet \| --quie \| --qui \| --qu \| --q \
588	\| -silent \| --silent \| --silen \| --sile \| --sil)
589	silent=yes ;;
590
591	-sbindir \| --sbindir \| --sbindi \| --sbind \| --sbin \| --sbi \| --sb)
592	ac_prev=sbindir
593	ac_sbindir_set="yes"
594	;;
595	-sbindir=* \| --sbindir=* \| --sbindi=* \| --sbind=* \| --sbin=* \
596	\| --sbi=* \| --sb=*)
597	sbindir="$ac_optarg"
598	ac_sbindir_set="yes"
599	;;
600
601	-bindir \| --bindir \| --bindi \| --bind \| --bin \| --bi \| --b)
602	echo "WARNING: bindir will be ignored, use sbindir"
603	;;
604	-bindir=* \| --bindir=* \| --bindi=* \| --bind=* \| --bin=* \
605	\| --bi=* \| --b=*)
606	echo "WARNING: bindir will be ignored, use sbindir"
607	;;
608
609	-datadir \| --datadir)
610	echo "WARNING: datadir will be ignored"
611	;;
612	-datadir=* \| --datadir=*)
613	echo "WARNING: datadir will be ignored"
614	;;
615
616	-includedir \| --includedir)
617	echo "WARNING: includedir will be ignored"
618	;;
619	-includedir=* \| --includedir=*)
620	echo "WARNING: includedir will be ignored"
621	;;
622
623	-infodir \| --infodir)
624	echo "WARNING: infodir will be ignored"
625	;;
626	-infodir=* \| --infodir=*)
627	echo "WARNING: infodir will be ignored"
628	;;
629
630	-libdir \| --libdir)
631	echo "WARNING: libdir will be ignored"
632	;;
633	-libdir=* \| --libdir=*)
634	echo "WARNING: libdir will be ignored"
635	;;
636
637	-libexecdir \| --libexecdir)
638	echo "WARNING: libexecdir will be ignored"
639	;;
640	-libexecdir=* \| --libexecdir=*)
641	echo "WARNING: libexecdir will be ignored"
642	;;
643
644	-sharedstatedir \| --sharedstatedir)
645	echo "WARNING: sharedstatedir will be ignored"
646	;;
647	-sharedstatedir=* \| --sharedstatedir=*)
648	echo "WARNING: sharedstatedir will be ignored"
649	;;
650
651	-site \| --site \| --sit)
652	ac_prev=site ;;
653	-site=* \| --site=* \| --sit=*)
654	site="$ac_optarg" ;;
655
656	-srcdir \| --srcdir \| --srcdi \| --srcd \| --src \| --sr)
657	ac_prev=srcdir ;;
658	-srcdir=* \| --srcdir=* \| --srcdi=* \| --srcd=* \| --src=* \| --sr=*)
659	srcdir="$ac_optarg" ;;
660
661	-sysconfdir \| --sysconfdir \| --sysconfdi \| --sysconfd \| --sysconf \
662	\| --syscon \| --sysco \| --sysc \| --sys \| --sy)
663	ac_prev=sysconfdir
664	ac_sysconfdir_set="yes"
665	;;
666	-sysconfdir=* \| --sysconfdir=* \| --sysconfdi=* \| --sysconfd=* \| --sysconf=* \
667	\| --syscon=* \| --sysco=* \| --sysc=* \| --sys=* \| --sy=*)
668	sysconfdir="$ac_optarg"
669	ac_sysconfdir_set="yes"
670	;;
671
672	-target \| --target \| --targe \| --targ \| --tar \| --ta \| --t)
673	ac_prev=target_alias ;;
674	-target=* \| --target=* \| --targe=* \| --targ=* \| --tar=* \| --ta=* \| --t=*)
675	target_alias="$ac_optarg" ;;
676
677	-v \| -verbose \| --verbose \| --verbos \| --verbo \| --verb)
678	verbose=yes ;;
679
680	-version \| --version \| --versio \| --versi \| --vers)
681	ac_init_version=: ;;
682
683
684	-with-* \| --with-*)
685	ac_package=`expr "x$ac_option" : 'x-with-\([[^=]]\)'`
686	# Reject names that are not valid shell variable names.
687	expr "x$ac_package" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
688	AC_MSG_ERROR([invalid package name: $ac_package])
689	ac_package=`echo $ac_package\| sed 's/-/_/g'`
690	case $ac_option in
691	=) ac_optarg=`echo "$ac_optarg" \| sed "s/'/'\\\\\\\\''/g"`;;
692	*) ac_optarg=yes ;;
693	esac
694	ac_with_check_opt=no
695	for f in ${SH_WITH_OPTS}
696	do
697	f=`echo $f \| sed 's/-/_/g'`
698	if test x${f} = x"${ac_package}"
699	then
700	ac_with_check_opt=yes
701	fi
702	done
703	if test x${ac_with_check_opt} = xno
704	then
705	AC_MSG_ERROR([unrecognized option: $ac_option
706	Try `$[0] --help' for more information.])
707	fi
708	eval "with_$ac_package='$ac_optarg'" ;;
709
710	-without-* \| --without-*)
711	ac_package=`expr "x$ac_option" : 'x-without-\(.\)'`
712	# Reject names that are not valid shell variable names.
713	expr "x$ac_package" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
714	AC_MSG_ERROR([invalid package name: $ac_package])
715	ac_package=`echo $ac_package \| sed 's/-/_/g'`
716	ac_with_check_opt=no
717	for f in ${SH_WITH_OPTS}
718	do
719	f=`echo $f \| sed 's/-/_/g'`
720	if test x${f} = x"${ac_package}"
721	then
722	ac_with_check_opt=yes
723	fi
724	done
725	if test x${ac_with_check_opt} = xno
726	then
727	AC_MSG_ERROR([unrecognized option: $ac_option
728	Try `$[0] --help' for more information.])
729	fi
730	eval "with_$ac_package=no" ;;
731
732
733	-*) AC_MSG_ERROR([unrecognized option: $ac_option
734	Try `$[0] --help' for more information.])
735	;;
736
737	=)
738	ac_envvar=`expr "x$ac_option" : 'x\([[^=]]*\)='`
739	# Reject names that are not valid shell variable names.
740	expr "x$ac_envvar" : "[.*[^_$as_cr_alnum]]" >/dev/null &&
741	AC_MSG_ERROR([invalid variable name: $ac_envvar])
742	ac_optarg=`echo "$ac_optarg" \| sed "s/'/'\\\\\\\\''/g"`
743	eval "$ac_envvar='$ac_optarg'"
744	export $ac_envvar ;;
745
746	*)
747	# FIXME: should be removed in autoconf 3.0.
748	AC_MSG_WARN([you should use --build, --host, --target])
749	expr "x$ac_option" : "[.*[^-._$as_cr_alnum]]" >/dev/null &&
750	AC_MSG_WARN([invalid host type: $ac_option])
751	: ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
752	;;
753
754
755	esac
756	done
757
758	if test -n "$ac_prev"; then
759	AC_MSG_ERROR(missing argument to --`echo $ac_prev \| sed 's/_/-/g'`)
760	fi
761
762	# Be sure to have absolute paths.
763	for ac_var in prefix exec_prefix
764	do
765	eval ac_val=$`echo $ac_var`
766	case $ac_val in
767	[[\\/$]]* \| ?:[[\\/]]* \| NONE \| '' \| OPT \| USR ) ;;
768	*) AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val]);;
769	esac
770	done
771
772	# Be sure to have absolute paths.
773	for ac_var in sbindir sysconfdir localstatedir mandir
774	do
775	eval ac_val=$`echo $ac_var`
776	case $ac_val in
777	[[\\/$]]* \| ?:[[\\/]]* ) ;;
778	*) AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val]);;
779	esac
780	done
781
782	# There might be people who depend on the old broken behavior: `$host'
783	# used to hold the argument of --host etc.
784	# FIXME: To remove some day.
785	build=$build_alias
786	host=$host_alias
787	target=$target_alias
788
789	# FIXME: To remove some day.
790	if test "x$host_alias" != x; then
791	if test "x$build_alias" = x; then
792	cross_compiling=maybe
793	AC_MSG_WARN([If you wanted to set the --build type, don't use --host.
794	If a cross compiler is detected then cross compile mode will be used.])
795	elif test "x$build_alias" != "x$host_alias"; then
796	cross_compiling=yes
797	fi
798	fi
799
800	ac_tool_prefix=
801	test -n "$host_alias" && ac_tool_prefix=$host_alias-
802
803	test "$silent" = yes && exec AS_MESSAGE_FD>/dev/null
804
805	m4_divert_pop([PARSE_ARGS])dnl
806	])# SH_INIT_PARSE_ARGS
807
808	m4_define([SH_INIT_HELP],
809	[m4_divert_push([HELP_BEGIN])dnl
810
811	#
812	# Report the --help message.
813	#
814	if test "$ac_init_help" = "long"; then
815	# Omit some internal or obsolete options to make the list less imposing.
816	# This message is too long to be a string in the A/UX 3.1 sh.
817	cat <<_ACEOF
818	\`configure' configures m4_ifset([AC_PACKAGE_STRING],
819	[AC_PACKAGE_STRING],
820	[this package]) to adapt to many kinds of systems.
821
822	Usage: $[0] [[OPTION]]... [[VAR=VALUE]]...
823
824	[To assign environment variables (e.g., CC, CFLAGS...), specify them as
825	VAR=VALUE. See below for descriptions of some of the useful variables.
826
827	Defaults for the options are specified in brackets.
828
829	Configuration:
830	-h, --help display this help and exit
831	--help=short display options specific to this package
832	--help=recursive display the short help of all the included packages
833	-V, --version display version information and exit
834	-q, --quiet, --silent do not print \`checking...' messages
835	--cache-file=FILE cache test results in FILE [disabled]
836	-C, --config-cache alias for \`--cache-file=config.cache'
837	-n, --no-create do not create output files
838	--srcdir=DIR find the sources in DIR [configure dir or \`..']
839
840	_ACEOF
841
842	cat <<_ACEOF
843	Installation directories:
844	--prefix=PREFIX install architecture-independent files in PREFIX
845	[$ac_default_prefix]
846	--exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
847	[PREFIX]
848
849	By default, \`make install' will install binaries in \`/usr/local/sbin',
850	the config file in \`/etc', manpage in \`/usr/local/share/man', and state
851	data in \`/var/lib/INSTALL_NAME' (FSH layout). You can specify other
852	FSH compliant layouts with \`--prefix=OPT' or \`--prefix=USR', or you
853	can specify a directory with \`--prefix=DIR' to install in \`DIR/sbin',
854	\`DIR/etc', etc.
855
856	For better control, use the options below.
857
858	Fine tuning of the installation directories:
859	--sbindir=DIR system admin executables [EPREFIX/sbin]
860	--sysconfdir=DIR read-only single-machine data [PREFIX/etc]
861	--localstatedir=DIR modifiable single-machine data [PREFIX/var]
862	--mandir=DIR man documentation [PREFIX/man]
863
864	For even finer tuning, paths can be specified for individual files (see below)
865
866	_ACEOF
867
868	cat <<\_ACEOF]
869	m4_divert_pop([HELP_BEGIN])dnl
870	dnl The order of the diversions here is
871	dnl - HELP_BEGIN
872	dnl which may be prolongated by extra generic options such as with X or
873	dnl AC_ARG_PROGRAM. Displayed only in long --help.
874	dnl
875	dnl - HELP_CANON
876	dnl Support for cross compilation (--build, --host and --target).
877	dnl Display only in long --help.
878	dnl
879	dnl - HELP_ENABLE
880	dnl which starts with the trailer of the HELP_BEGIN, HELP_CANON section,
881	dnl then implements the header of the non generic options.
882	dnl
883	dnl - HELP_WITH
884	dnl
885	dnl - HELP_VAR
886	dnl
887	dnl - HELP_VAR_END
888	dnl
889	dnl - HELP_END
890	dnl initialized below, in which we dump the trailer (handling of the
891	dnl recursion for instance).
892	m4_divert_push([HELP_ENABLE])dnl
893	_ACEOF
894	fi
895
896	if test -n "$ac_init_help"; then
897	m4_ifset([AC_PACKAGE_STRING],
898	[ case $ac_init_help in
899	short \| recursive ) echo "Configuration of AC_PACKAGE_STRING:";;
900	esac])
901	cat <<\_ACEOF
902	m4_divert_pop([HELP_ENABLE])dnl
903	m4_divert_push([HELP_END])dnl
904	m4_ifset([AC_PACKAGE_BUGREPORT], [
905	Report bugs to <AC_PACKAGE_BUGREPORT>.])
906	_ACEOF
907	fi
908
909	if test "$ac_init_help" = "recursive"; then
910	# If there are subdirs, report their specific --help.
911	ac_popdir=`pwd`
912	for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
913	test -d $ac_dir \|\| continue
914	_AC_SRCPATHS(["$ac_dir"])
915	cd $ac_dir
916	# Check for guested configure; otherwise get Cygnus style configure.
917	if test -f $ac_srcdir/configure.gnu; then
918	echo
919	$SHELL $ac_srcdir/configure.gnu --help=recursive
920	elif test -f $ac_srcdir/configure; then
921	echo
922	$SHELL $ac_srcdir/configure --help=recursive
923	elif test -f $ac_srcdir/configure.ac \|\|
924	test -f $ac_srcdir/configure.in; then
925	echo
926	$ac_configure --help
927	else
928	AC_MSG_WARN([no configuration information is in $ac_dir])
929	fi
930	cd $ac_popdir
931	done
932	fi
933
934	test -n "$ac_init_help" && exit 0
935	m4_divert_pop([HELP_END])dnl
936	])# SH_INIT_HELP
937
938
939
940
941
942
943
944
945	# Check whether sa_sigaction works.
946	# Rainer Wichmann <support@la-samhna.de>, 2003.
947	#
948	# This file can be copied and used freely without restrictions. It can
949	# be used in projects which are not available under the GNU Public License.
950
951	# serial 1
952
953	AC_DEFUN([AM_SA_SIGACTION_WORKS],
954	[
955	am_cv_val_SA_SIGACTION=no
956	AC_CHECK_HEADER(signal.h,
957	[
958	AM_SI_USER
959	AM_SA_SIGINFO
960	if test $am_cv_val_SI_USER = yes && test $am_cv_val_SA_SIGINFO = yes
961	then
962	AC_TRY_RUN([
963	#include <signal.h>
964	#include <setjmp.h>
965	#include <stdio.h>
966	#include <stdlib.h>
967
968	volatile int xnum = 0;
969	volatile int xcode = 0;
970	jmp_buf Buf;
971	int xsig = SIGSEGV;
972
973	void sighandler (int xsignam, siginfo_t * xsiginfo, void * xsigadd)
974	{
975	static sigset_t x;
976
977	if (xsiginfo == NULL)
978	exit(__LINE__);
979	if (xsiginfo->si_signo != xsignam)
980	exit(__LINE__);
981	++xnum;
982	xcode = xsiginfo->si_code;
983	sigemptyset (&x);
984	sigprocmask(SIG_SETMASK, &x, NULL);
985	longjmp ( Buf, 1);
986	}
987
988	int main ()
989	{
990	struct sigaction newact;
991
992	newact.sa_sigaction = sighandler;
993	sigemptyset (&newact.sa_mask);
994	newact.sa_flags = SA_SIGINFO;
995	if (0 != sigaction (xsig, &newact, NULL))
996	exit (__LINE__);
997	if(setjmp ( Buf)) {
998	if (xnum > 1)
999	goto Third;
1000	goto Second;
1001	}
1002	memcpy((void *) 0x0, "test", 5);
1003	Second:
1004	if (xcode == SI_USER)
1005	exit (__LINE__);
1006	raise(xsig);
1007	Third:
1008	if (xcode != SI_USER)
1009	exit (__LINE__);
1010	if (xnum != 2)
1011	exit (__LINE__);
1012	return (0);
1013	}], am_cv_val_SA_SIGACTION=yes, am_cv_val_SA_SIGACTION=no, am_cv_val_SA_SIGACTION=no)
1014	fi
1015	])
1016	AC_MSG_CHECKING([whether sa_sigaction is supported])
1017	if test $am_cv_val_SA_SIGACTION = yes
1018	then
1019	AC_MSG_RESULT(yes)
1020	AC_DEFINE([SA_SIGACTION_WORKS], 1, [Define if sa_sigaction works])
1021	else
1022	AC_MSG_RESULT(no)
1023	fi
1024	])
1025
1026	# Check whether SI_USER is available in <signal.h>.
1027	# Rainer Wichmann <support@la-samhna.de>, 2003.
1028	#
1029	# This file can be copied and used freely without restrictions. It can
1030	# be used in projects which are not available under the GNU Public License.
1031
1032	# serial 1
1033
1034
1035	AC_DEFUN([AM_SI_USER],
1036	[if test $ac_cv_header_signal_h = yes; then
1037	AC_CACHE_CHECK([for SI_USER in signal.h], am_cv_val_SI_USER,
1038	[AC_TRY_LINK([#include <signal.h>], [return SI_USER],
1039	am_cv_val_SI_USER=yes, am_cv_val_SI_USER=no)])
1040	if test $am_cv_val_SI_USER = yes; then
1041	AC_DEFINE([HAVE_SI_USER], 1, [Define if you have SI_USER])
1042	fi
1043	fi])
1044
1045	# Check whether SA_SIGINFO is available in <signal.h>.
1046	# Rainer Wichmann <support@la-samhna.de>, 2003.
1047	#
1048	# This file can be copied and used freely without restrictions. It can
1049	# be used in projects which are not available under the GNU Public License.
1050
1051	# serial 1
1052
1053
1054	AC_DEFUN([AM_SA_SIGINFO],
1055	[if test $ac_cv_header_signal_h = yes; then
1056	AC_CACHE_CHECK([for SA_SIGINFO in signal.h], am_cv_val_SA_SIGINFO,
1057	[AC_TRY_LINK([#include <signal.h>], [return SA_SIGINFO],
1058	am_cv_val_SA_SIGINFO=yes, am_cv_val_SA_SIGINFO=no)])
1059	if test $am_cv_val_SA_SIGINFO = yes; then
1060	AC_DEFINE([HAVE_SA_SIGINFO], 1, [Define if you have SA_SIGINFO])
1061	fi
1062	fi])
1063
1064	dnl
1065	dnl Useful macros for autoconf to check for ssp-patched gcc
1066	dnl 1.0 - September 2003 - Tiago Sousa <mirage@kaotik.org>
1067	dnl 1.1 - August 2006 - Ted Percival <ted@midg3t.net>
1068	dnl * Stricter language checking (C or C++)
1069	dnl * Adds GCC_STACK_PROTECT_LIB to add -lssp to LDFLAGS as necessary
1070	dnl * Caches all results
1071	dnl * Uses macros to ensure correct ouput in quiet/silent mode
1072	dnl 1.2 - April 2007 - Ted Percival <ted@midg3t.net>
1073	dnl * Added GCC_STACK_PROTECTOR macro for simpler (one-line) invocation
1074	dnl * GCC_STACK_PROTECT_LIB now adds -lssp to LIBS rather than LDFLAGS
1075	dnl
1076	dnl About ssp:
1077	dnl GCC extension for protecting applications from stack-smashing attacks
1078	dnl http://www.research.ibm.com/trl/projects/security/ssp/
1079	dnl
1080	dnl Usage:
1081	dnl Most people will simply call GCC_STACK_PROTECTOR.
1082	dnl If you only use one of C or C++, you can save time by only calling the
1083	dnl macro appropriate for that language. In that case you should also call
1084	dnl GCC_STACK_PROTECT_LIB first.
1085	dnl
1086	dnl GCC_STACK_PROTECTOR
1087	dnl Tries to turn on stack protection for C and C++ by calling the following
1088	dnl three macros with the right languages.
1089	dnl
1090	dnl GCC_STACK_PROTECT_CC
1091	dnl checks -fstack-protector with the C compiler, if it exists then updates
1092	dnl CFLAGS and defines ENABLE_SSP_CC
1093	dnl
1094	dnl GCC_STACK_PROTECT_CXX
1095	dnl checks -fstack-protector with the C++ compiler, if it exists then updates
1096	dnl CXXFLAGS and defines ENABLE_SSP_CXX
1097	dnl
1098	dnl GCC_STACK_PROTECT_LIB
1099	dnl adds -lssp to LIBS if it is available
1100	dnl ssp is usually provided as part of libc, but was previously a separate lib
1101	dnl It does not hurt to add -lssp even if libc provides SSP - in that case
1102	dnl libssp will simply be ignored.
1103	dnl
1104
1105	AC_DEFUN([GCC_STACK_PROTECT_LIB],[
1106	AC_CACHE_CHECK([whether libssp exists], ssp_cv_lib,
1107	[ssp_old_libs="$LIBS"
1108	LIBS="$LIBS -lssp"
1109	AC_TRY_LINK(,, ssp_cv_lib=yes, ssp_cv_lib=no)
1110	LIBS="$ssp_old_libs"
1111	])
1112	if test $ssp_cv_lib = yes; then
1113	LIBS="$LIBS -lssp"
1114	fi
1115	])
1116
1117	AC_DEFUN([GCC_STACK_PROTECT_CC],[
1118	AC_LANG_ASSERT(C)
1119	if test "X$CC" != "X"; then
1120	AC_CACHE_CHECK([whether ${CC} accepts -fstack-protector],
1121	ssp_cv_cc,
1122	[ssp_old_cflags="$CFLAGS"
1123	CFLAGS="$CFLAGS -fstack-protector-all"
1124	AC_TRY_COMPILE(,, ssp_cv_cc=yes, ssp_cv_cc=no)
1125	CFLAGS="$ssp_old_cflags"
1126	])
1127	if test $ssp_cv_cc = no; then
1128	AC_CACHE_CHECK([whether ${CC} accepts -fstack-protector],
1129	ssp_cv_cc,
1130	[ssp_old_cflags="$CFLAGS"
1131	CFLAGS="$CFLAGS -fstack-protector-all"
1132	AC_TRY_COMPILE(,, ssp_cv_cc=yes, ssp_cv_cc=no)
1133	CFLAGS="$ssp_old_cflags"
1134	])
1135	if test $ssp_cv_cc = yes; then
1136	CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=1 -fstack-protector-all"
1137	AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])
1138	fi
1139	else
1140	if test $ssp_cv_cc = yes; then
1141	CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=1 -fstack-protector"
1142	AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])
1143	fi
1144	fi
1145	fi
1146	])
1147
1148	AC_DEFUN([GCC_STACK_PROTECT_CXX],[
1149	AC_LANG_ASSERT(C++)
1150	if test "X$CXX" != "X"; then
1151	AC_CACHE_CHECK([whether ${CXX} accepts -fstack-protector],
1152	ssp_cv_cxx,
1153	[ssp_old_cxxflags="$CXXFLAGS"
1154	CXXFLAGS="$CXXFLAGS -fstack-protector"
1155	AC_TRY_COMPILE(,, ssp_cv_cxx=yes, ssp_cv_cxx=no)
1156	CXXFLAGS="$ssp_old_cxxflags"
1157	])
1158	if test $ssp_cv_cxx = yes; then
1159	CXXFLAGS="$CXXFLAGS -fstack-protector"
1160	AC_DEFINE([ENABLE_SSP_CXX], 1, [Define if SSP C++ support is enabled.])
1161	fi
1162	fi
1163	])
1164
1165	AC_DEFUN([GCC_STACK_PROTECTOR],[
1166	GCC_STACK_PROTECT_LIB
1167
1168	AC_LANG_PUSH([C])
1169	GCC_STACK_PROTECT_CC
1170	AC_LANG_POP([C])
1171
1172	AC_LANG_PUSH([C++])
1173	GCC_STACK_PROTECT_CXX
1174	AC_LANG_POP([C++])
1175	])
1176
1177
1178
1179	AC_DEFUN([SAMHAIN_POSIX],[
1180	AC_MSG_CHECKING([whether _POSIX_SOURCE is necessary])
1181	AC_TRY_COMPILE([#include <stdio.h>
1182	void fileno(int);int fdopen(int, char *); ],,
1183	[
1184	AC_MSG_RESULT(yes)
1185	AC_DEFINE([_POSIX_SOURCE],1,[Define if POSIX functions are required])
1186	],
1187	[AC_MSG_RESULT(no)])
1188	])dnl
1189
1190	dnl checks for a known 64 bit programming environment
1191	dnl AC_RUN_IFELSE(PROGRAM,
1192	dnl [ACTION-IF-TRUE], [ACTION-IF-FALSE],
1193	dnl [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
1194	dnl
1195	AC_DEFUN([SAMHAIN_PRG_ENV],[
1196	AC_MSG_CHECKING([for a known 64 bit programming environment])
1197	# Compile and run a program that determines the programming environment
1198	AC_RUN_IFELSE([
1199	AC_LANG_SOURCE([[
1200	#include <stdio.h>
1201	int main(int argc,char **argv)
1202	{
1203	if (argc > 1) {
1204	#if defined(__arch64__)
1205	printf("__arch64__\n");
1206	#elif defined(__ia64__)
1207	printf("__ia64__\n");
1208	#elif defined(__x86_64__)
1209	printf("__x86_64__\n");
1210	#elif defined(__LP64__)
1211	printf("__LP64__\n");
1212	#elif defined(__64BIT__)
1213	printf("__64BIT__\n");
1214	#elif defined(_LP64)
1215	printf("_LP64\n");
1216	#elif defined(_M_IA64)
1217	printf("_M_IA64\n");
1218	#elif defined(_MIPS_SZLONG) && (_MIPS_SZLONG == 64)
1219	printf("_MIPS_64\n");
1220	#else
1221	choke me
1222	#endif
1223	}
1224	return 0;
1225	}
1226	]])
1227	],[
1228	# Program compiled and ran, so get version by adding argument.
1229	samhain_prg_ENV=`./conftest$ac_exeext x`
1230	samhain_64=yes
1231	AC_MSG_RESULT([$samhain_prg_ENV])
1232	],[
1233	AC_MSG_RESULT([none])
1234	],[
1235	AC_MSG_RESULT([none])
1236	])
1237	])dnl
1238
1239	AC_DEFUN([SAMHAIN_X86_64],[
1240	AC_MSG_CHECKING([for x86_64])
1241	AC_TRY_RUN([
1242	int main() {
1243	__asm__ volatile (
1244	"movq %rax, %rax"
1245	);
1246	return 0;
1247	}
1248	],
1249	[
1250	AC_MSG_RESULT(yes)
1251	samhain_64=yes
1252	tiger_src=sh_tiger1_64.c
1253	AC_DEFINE([TIGER_OPT_ASM],1,[Define to use tiger x86_64 optimized assembly])
1254	],
1255	[
1256	AC_MSG_RESULT([no])
1257	],[
1258	AC_MSG_RESULT([no])
1259	])
1260	])dnl
1261
1262
1263	AC_DEFUN([SAMHAIN_64],[
1264	samhain_64=no
1265	tiger_src=sh_tiger1.c
1266	#
1267	# if sizeof(unsigned long) = 4, try compiler macros for 64bit
1268	#
1269	if test "x$ac_cv_sizeof_unsigned_long" = x4; then
1270	if test "x$ac_cv_sizeof_unsigned_long_long" = x8; then
1271	SAMHAIN_PRG_ENV
1272	if test "x$samhain_64" = xyes; then
1273	tiger_src=sh_tiger1_64.c
1274	fi
1275	#
1276	# if GCC and __i386__, use precompiled assembler
1277	#
1278	if test "x$GCC" = xyes; then
1279	AC_MSG_CHECKING([for non-apple non-cygwin i386])
1280	samhain_i386=no
1281	$CC -E -dM - < /dev/null \| egrep '__i386__' >/dev/null 2>&1
1282	if test $? = 0; then
1283	# apples gcc does not understand the assembly we provide
1284	$CC -E -dM - < /dev/null \| egrep '(__sun__\|__APPLE__\|__CYGWIN__)' >/dev/null 2>&1 \|\| samhain_i386=yes
1285	fi
1286	if test "x$samhain_i386" = xyes; then
1287	tiger_src=sh_tiger1.s
1288	AC_DEFINE([TIGER_32_BIT_S],1,[Define to use tiger 32 bit i386 assembler])
1289	fi
1290	AC_MSG_RESULT([$samhain_i386])
1291	fi
1292	#
1293	#
1294	#
1295	else
1296	samhain_64=no
1297	tiger_src=sh_tiger1.c
1298	fi
1299	else
1300	#
1301	# sizeof(unsigned long) = 8
1302	#
1303	tiger_src=sh_tiger1_64.c
1304	samhain_64=yes
1305	#
1306	# check for x86_64 (enables assembly optimizations)
1307	#
1308	if test "x$GCC" = xyes; then
1309	SAMHAIN_X86_64
1310	fi
1311	fi
1312	if test "x$samhain_64" = xyes; then
1313	AC_DEFINE([TIGER_64_BIT],1,[Define to use tiger 64 bit implementation])
1314	fi
1315	AC_MSG_CHECKING([for 64 bit environment])
1316	AC_MSG_RESULT([$samhain_64])
1317	AC_MSG_CHECKING([for tiger source to use])
1318	AC_MSG_RESULT([$tiger_src])
1319	AC_SUBST(tiger_src)
1320	])dnl
1321
1322	AC_DEFUN([sh_CHECK_POSIX_ACL],
1323	[
1324	AC_CHECK_HEADERS(sys/acl.h)
1325	if test $ac_cv_header_sys_acl_h = yes; then
1326
1327	AC_CHECK_LIB([acl], [acl_get_file], sh_lacl=yes, sh_lacl=no)
1328	if test x"$sh_lacl" = xyes; then
1329	LIBACL=-lacl
1330	else
1331	LIBACL=
1332	fi
1333
1334	OLDLIBS="$LIBS"
1335	LIBS="$LIBS $LIBACL"
1336	AC_CHECK_FUNCS([acl_free acl_get_file acl_get_fd],
1337	[sh_facl=yes],[sh_facl=no])
1338	LIBS="$OLDLIBS"
1339
1340	if test x"$sh_facl" = xyes; then
1341	AC_DEFINE(USE_ACL, 1, [Define if you want ACL support.])
1342	LIBS="$LIBS $LIBACL"
1343	fi
1344	fi
1345	])
1346
1347	AC_DEFUN([sh_CHECK_XATTR],
1348	[
1349	AC_CHECK_HEADERS(attr/xattr.h)
1350	if test $ac_cv_header_attr_xattr_h = yes; then
1351
1352	AC_CHECK_LIB([attr], [getxattr], sh_lattr=yes, sh_lattr=no)
1353	if test x"$sh_lattr" = xyes; then
1354	LIBATTR=-lattr
1355	else
1356	LIBATTR=
1357	fi
1358
1359	OLDLIBS="$LIBS"
1360	LIBS="$LIBS $LIBATTR"
1361	AC_CHECK_FUNCS([getxattr lgetxattr fgetxattr],
1362	[sh_fattr=yes],[sh_fattr=no])
1363	LIBS="$OLDLIBS"
1364
1365	if test x"$sh_fattr" = xyes; then
1366	AC_DEFINE(USE_XATTR, 1, [Define if you want extended attributes support.])
1367	LIBS="$LIBS $LIBATTR"
1368	fi
1369	fi
1370	])
1371
1372	dnl Autoconf macros for libprelude
1373	dnl $id$
1374
1375	# Modified for LIBPRELUDE -- Yoann Vandoorselaere
1376	# Modified for LIBGNUTLS -- nmav
1377	# Configure paths for LIBGCRYPT
1378	# Shamelessly stolen from the one of XDELTA by Owen Taylor
1379	# Werner Koch 99-12-09
1380
1381	dnl AM_PATH_LIBPRELUDE([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
1382	dnl Test for libprelude, and define LIBPRELUDE_PREFIX, LIBPRELUDE_CFLAGS, LIBPRELUDE_PTHREAD_CFLAGS,
1383	dnl LIBPRELUDE_LDFLAGS, and LIBPRELUDE_LIBS
1384	dnl
1385	AC_DEFUN([AM_PATH_LIBPRELUDE],
1386	[dnl
1387	dnl Get the cflags and libraries from the libprelude-config script
1388	dnl
1389	dnl AC_ARG_WITH(libprelude-prefix,
1390	dnl [ --with-libprelude-prefix=PFX Prefix where libprelude is installed (optional)],
1391	dnl libprelude_config_prefix="$withval", libprelude_config_prefix="")
1392	dnl
1393	dnl if test x$libprelude_config_prefix != x ; then
1394	dnl if test x${LIBPRELUDE_CONFIG+set} != xset ; then
1395	dnl LIBPRELUDE_CONFIG=$libprelude_config_prefix/bin/libprelude-config
1396	dnl fi
1397	dnl fi
1398	dnl
1399	dnl AC_PATH_PROG(LIBPRELUDE_CONFIG, libprelude-config, no)
1400	min_libprelude_version=ifelse([$1], ,0.1.0,$1)
1401	AC_MSG_CHECKING(for libprelude - version >= $min_libprelude_version)
1402	no_libprelude=""
1403	if test "$LIBPRELUDE_CONFIG" = "no" ; then
1404	no_libprelude=yes
1405	else
1406	LIBPRELUDE_CFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --cflags`
1407	LIBPRELUDE_PTHREAD_CFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --pthread-cflags`
1408	LIBPRELUDE_LDFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --ldflags`
1409	LIBPRELUDE_LIBS=`$LIBPRELUDE_CONFIG $libprelude_config_args --libs`
1410	LIBPRELUDE_PREFIX=`$LIBPRELUDE_CONFIG $libprelude_config_args --prefix`
1411	LIBPRELUDE_CONFIG_PREFIX=`$LIBPRELUDE_CONFIG $libprelude_config_args --config-prefix`
1412	libprelude_config_version=`$LIBPRELUDE_CONFIG $libprelude_config_args --version`
1413
1414
1415	ac_save_CFLAGS="$CFLAGS"
1416	ac_save_LDFLAGS="$LDFLAGS"
1417	ac_save_LIBS="$LIBS"
1418	CFLAGS="$CFLAGS $LIBPRELUDE_CFLAGS"
1419	LDFLAGS="$LDFLAGS $LIBPRELUDE_LDFLAGS"
1420	LIBS="$LIBS $LIBPRELUDE_LIBS"
1421	dnl
1422	dnl Now check if the installed libprelude is sufficiently new. Also sanity
1423	dnl checks the results of libprelude-config to some extent
1424	dnl
1425	rm -f conf.libpreludetest
1426	AC_TRY_RUN([
1427	#include <stdio.h>
1428	#include <stdlib.h>
1429	#include <string.h>
1430	#include <libprelude/prelude.h>
1431
1432	int
1433	main ()
1434	{
1435	system ("touch conf.libpreludetest");
1436
1437	if( strcmp( prelude_check_version(NULL), "$libprelude_config_version" ) )
1438	{
1439	printf("\n*** 'libprelude-config --version' returned %s, but LIBPRELUDE (%s)\n",
1440	"$libprelude_config_version", prelude_check_version(NULL) );
1441	printf("*** was found! If libprelude-config was correct, then it is best\n");
1442	printf("*** to remove the old version of LIBPRELUDE. You may also be able to fix the error\n");
1443	printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
1444	printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
1445	printf("*** required on your system.\n");
1446	printf("*** If libprelude-config was wrong, set the environment variable LIBPRELUDE_CONFIG\n");
1447	printf("*** to point to the correct copy of libprelude-config, and remove the file config.cache\n");
1448	printf("*** before re-running configure\n");
1449	}
1450	else if ( strcmp(prelude_check_version(NULL), LIBPRELUDE_VERSION ) )
1451	{
1452	printf("\n*** LIBPRELUDE header file (version %s) does not match\n", LIBPRELUDE_VERSION);
1453	printf("*** library (version %s)\n", prelude_check_version(NULL) );
1454	}
1455	else
1456	{
1457	if ( prelude_check_version( "$min_libprelude_version" ) )
1458	{
1459	return 0;
1460	}
1461	else
1462	{
1463	printf("no\n*** An old version of LIBPRELUDE (%s) was found.\n",
1464	prelude_check_version(NULL) );
1465	printf("*** You need a version of LIBPRELUDE newer than %s. The latest version of\n",
1466	"$min_libprelude_version" );
1467	printf("*** LIBPRELUDE is always available from http://www.prelude-ids.org/download/releases.\n");
1468	printf("*** \n");
1469	printf("*** If you have already installed a sufficiently new version, this error\n");
1470	printf("*** probably means that the wrong copy of the libprelude-config shell script is\n");
1471	printf("*** being found. The easiest way to fix this is to remove the old version\n");
1472	printf("*** of LIBPRELUDE, but you can also set the LIBPRELUDE_CONFIG environment to point to the\n");
1473	printf("*** correct copy of libprelude-config. (In this case, you will have to\n");
1474	printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
1475	printf("*** so that the correct libraries are found at run-time))\n");
1476	}
1477	}
1478	return 1;
1479	}
1480	],, no_libprelude=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
1481	CFLAGS="$ac_save_CFLAGS"
1482	LIBS="$ac_save_LIBS"
1483	LDFLAGS="$ac_save_LDFLAGS"
1484	fi
1485
1486	if test "x$no_libprelude" = x ; then
1487	AC_MSG_RESULT(yes)
1488	ifelse([$2], , :, [$2])
1489	else
1490	if test -f conf.libpreludetest ; then
1491	:
1492	else
1493	AC_MSG_RESULT(no)
1494	fi
1495	if test "$LIBPRELUDE_CONFIG" = "no" ; then
1496	echo "*** The libprelude-config script installed by LIBPRELUDE could not be found"
1497	echo "*** If LIBPRELUDE was installed in PREFIX, make sure PREFIX/bin is in"
1498	echo "*** your path, or set the LIBPRELUDE_CONFIG environment variable to the"
1499	echo "*** full path to libprelude-config."
1500	else
1501	if test -f conf.libpreludetest ; then
1502	:
1503	else
1504	echo "*** Could not run libprelude test program, checking why..."
1505	CFLAGS="$CFLAGS $LIBPRELUDE_CFLAGS"
1506	LDFLAGS="$LDFLAGS $LIBPRELUDE_LDFLAGS"
1507	LIBS="$LIBS $LIBPRELUDE_LIBS"
1508	AC_TRY_LINK([
1509	#include <stdio.h>
1510	#include <stdlib.h>
1511	#include <string.h>
1512	#include <libprelude/prelude.h>
1513	], [ return !!prelude_check_version(NULL); ],
1514	[ echo "*** The test program compiled, but did not run. This usually means"
1515	echo "*** that the run-time linker is not finding LIBPRELUDE or finding the wrong"
1516	echo "*** version of LIBPRELUDE. If it is not finding LIBPRELUDE, you'll need to set your"
1517	echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
1518	echo "*** to the installed location Also, make sure you have run ldconfig if that"
1519	echo "*** is required on your system"
1520	echo "***"
1521	echo "*** If you have an old version installed, it is best to remove it, although"
1522	echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
1523	echo "***" ],
1524	[ echo "*** The test program failed to compile or link. See the file config.log for the"
1525	echo "*** exact error that occured. This usually means LIBPRELUDE was incorrectly installed"
1526	echo "*** or that you have moved LIBPRELUDE since it was installed. In the latter case, you"
1527	echo "*** may want to edit the libprelude-config script: $LIBPRELUDE_CONFIG" ])
1528	CFLAGS="$ac_save_CFLAGS"
1529	LDFLAGS="$ac_save_LDFLAGS"
1530	LIBS="$ac_save_LIBS"
1531	fi
1532	fi
1533	LIBPRELUDE_CFLAGS=""
1534	LIBPRELUDE_LDFLAGS=""
1535	LIBPRELUDE_LIBS=""
1536	ifelse([$3], , :, [$3])
1537	fi
1538	rm -f conf.libpreludetest
1539	AC_SUBST(LIBPRELUDE_CFLAGS)
1540	AC_SUBST(LIBPRELUDE_PTHREAD_CFLAGS)
1541	AC_SUBST(LIBPRELUDE_LDFLAGS)
1542	AC_SUBST(LIBPRELUDE_LIBS)
1543	AC_SUBST(LIBPRELUDE_PREFIX)
1544	AC_SUBST(LIBPRELUDE_CONFIG_PREFIX)
1545	])
1546
1547
1548	##### http://autoconf-archive.cryp.to/acx_pthread.html
1549	#
1550	# SYNOPSIS
1551	#
1552	# ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
1553	#
1554	# DESCRIPTION
1555	#
1556	# This macro figures out how to build C programs using POSIX threads.
1557	# It sets the PTHREAD_LIBS output variable to the threads library and
1558	# linker flags, and the PTHREAD_CFLAGS output variable to any special
1559	# C compiler flags that are needed. (The user can also force certain
1560	# compiler flags/libs to be tested by setting these environment
1561	# variables.)
1562	#
1563	# Also sets PTHREAD_CC to any special C compiler that is needed for
1564	# multi-threaded programs (defaults to the value of CC otherwise).
1565	# (This is necessary on AIX to use the special cc_r compiler alias.)
1566	#
1567	# NOTE: You are assumed to not only compile your program with these
1568	# flags, but also link it with them as well. e.g. you should link
1569	# with $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS
1570	# $LIBS
1571	#
1572	# If you are only building threads programs, you may wish to use
1573	# these variables in your default LIBS, CFLAGS, and CC:
1574	#
1575	# LIBS="$PTHREAD_LIBS $LIBS"
1576	# CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1577	# CC="$PTHREAD_CC"
1578	#
1579	# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute
1580	# constant has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to
1581	# that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
1582	#
1583	# ACTION-IF-FOUND is a list of shell commands to run if a threads
1584	# library is found, and ACTION-IF-NOT-FOUND is a list of commands to
1585	# run it if it is not found. If ACTION-IF-FOUND is not specified, the
1586	# default action will define HAVE_PTHREAD.
1587	#
1588	# Please let the authors know if this macro fails on any platform, or
1589	# if you have any other suggestions or comments. This macro was based
1590	# on work by SGJ on autoconf scripts for FFTW (http://www.fftw.org/)
1591	# (with help from M. Frigo), as well as ac_pthread and hb_pthread
1592	# macros posted by Alejandro Forero Cuervo to the autoconf macro
1593	# repository. We are also grateful for the helpful feedback of
1594	# numerous users.
1595	#
1596	# LAST MODIFICATION
1597	#
1598	# 2007-07-29
1599	#
1600	# COPYLEFT
1601	#
1602	# Copyright (c) 2007 Steven G. Johnson <stevenj@alum.mit.edu>
1603	#
1604	# This program is free software: you can redistribute it and/or
1605	# modify it under the terms of the GNU General Public License as
1606	# published by the Free Software Foundation, either version 3 of the
1607	# License, or (at your option) any later version.
1608	#
1609	# This program is distributed in the hope that it will be useful, but
1610	# WITHOUT ANY WARRANTY; without even the implied warranty of
1611	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1612	# General Public License for more details.
1613	#
1614	# You should have received a copy of the GNU General Public License
1615	# along with this program. If not, see
1616	# <http://www.gnu.org/licenses/>.
1617	#
1618	# As a special exception, the respective Autoconf Macro's copyright
1619	# owner gives unlimited permission to copy, distribute and modify the
1620	# configure scripts that are the output of Autoconf when processing
1621	# the Macro. You need not follow the terms of the GNU General Public
1622	# License when using or distributing such scripts, even though
1623	# portions of the text of the Macro appear in them. The GNU General
1624	# Public License (GPL) does govern all other use of the material that
1625	# constitutes the Autoconf Macro.
1626	#
1627	# This special exception to the GPL applies to versions of the
1628	# Autoconf Macro released by the Autoconf Macro Archive. When you
1629	# make and distribute a modified version of the Autoconf Macro, you
1630	# may extend this special exception to the GPL to apply to your
1631	# modified version as well.
1632
1633	AC_DEFUN([ACX_PTHREAD], [
1634	AC_REQUIRE([AC_CANONICAL_HOST])
1635	AC_LANG_SAVE
1636	AC_LANG_C
1637	acx_pthread_ok=no
1638
1639	# We used to check for pthread.h first, but this fails if pthread.h
1640	# requires special compiler flags (e.g. on True64 or Sequent).
1641	# It gets checked for in the link test anyway.
1642
1643	# First of all, check if the user has set any of the PTHREAD_LIBS,
1644	# etcetera environment variables, and if threads linking works using
1645	# them:
1646	if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
1647	save_CFLAGS="$CFLAGS"
1648	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1649	save_LIBS="$LIBS"
1650	LIBS="$PTHREAD_LIBS $LIBS"
1651	AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
1652	AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
1653	AC_MSG_RESULT($acx_pthread_ok)
1654	if test x"$acx_pthread_ok" = xno; then
1655	PTHREAD_LIBS=""
1656	PTHREAD_CFLAGS=""
1657	fi
1658	LIBS="$save_LIBS"
1659	CFLAGS="$save_CFLAGS"
1660	fi
1661
1662	# We must check for the threads library under a number of different
1663	# names; the ordering is very important because some systems
1664	# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
1665	# libraries is broken (non-POSIX).
1666
1667	# Create a list of thread flags to try. Items starting with a "-" are
1668	# C compiler flags, and other items are library names, except for "none"
1669	# which indicates that we try without any flags at all, and "pthread-config"
1670	# which is a program returning the flags for the Pth emulation library.
1671
1672	acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
1673
1674	# The ordering is (sometimes) important. Some notes on the
1675	# individual items follow:
1676
1677	# pthreads: AIX (must check this before -lpthread)
1678	# none: in case threads are in libc; should be tried before -Kthread and
1679	# other compiler flags to prevent continual compiler warnings
1680	# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
1681	# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
1682	# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
1683	# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
1684	# -pthreads: Solaris/gcc
1685	# -mthreads: Mingw32/gcc, Lynx/gcc
1686	# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
1687	# doesn't hurt to check since this sometimes defines pthreads too;
1688	# also defines -D_REENTRANT)
1689	# ... -mt is also the pthreads flag for HP/aCC
1690	# pthread: Linux, etcetera
1691	# --thread-safe: KAI C++
1692	# pthread-config: use pthread-config program (for GNU Pth library)
1693
1694	case "${host_cpu}-${host_os}" in
1695	solaris)
1696
1697	# On Solaris (at least, for some versions), libc contains stubbed
1698	# (non-functional) versions of the pthreads routines, so link-based
1699	# tests will erroneously succeed. (We need to link with -pthreads/-mt/
1700	# -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
1701	# a function called by this macro, so we could check for that, but
1702	# who knows whether they'll stub that too in a future libc.) So,
1703	# we'll just look for -pthreads and -lpthread first:
1704
1705	acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
1706	;;
1707	esac
1708
1709	if test x"$acx_pthread_ok" = xno; then
1710	for flag in $acx_pthread_flags; do
1711
1712	case $flag in
1713	none)
1714	AC_MSG_CHECKING([whether pthreads work without any flags])
1715	;;
1716
1717	-pthread)
1718	AC_MSG_CHECKING([whether pthreads work with $flag])
1719	PTHREAD_CFLAGS="$flag"
1720	;;
1721
1722	-*)
1723	AC_MSG_CHECKING([whether pthreads work with $flag])
1724	PTHREAD_CFLAGS="$flag"
1725	;;
1726
1727	pthread-config)
1728	AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
1729	if test x"$acx_pthread_config" = xno; then continue; fi
1730	PTHREAD_CFLAGS="`pthread-config --cflags`"
1731	PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
1732	;;
1733
1734	*)
1735	AC_MSG_CHECKING([for the pthreads library -l$flag])
1736	PTHREAD_LIBS="-l$flag"
1737	;;
1738	esac
1739
1740	save_LIBS="$LIBS"
1741	save_CFLAGS="$CFLAGS"
1742	save_LDFLAGS="$LDFLAGS"
1743	LIBS="$PTHREAD_LIBS $LIBS"
1744	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1745	LDFLAGS="$LDFLAGS $PTHREAD_CFLAGS"
1746
1747	# Check for various functions. We must include pthread.h,
1748	# since some functions may be macros. (On the Sequent, we
1749	# need a special flag -Kthread to make this header compile.)
1750	# We check for pthread_join because it is in -lpthread on IRIX
1751	# while pthread_create is in libc. We check for pthread_attr_init
1752	# due to DEC craziness with -lpthreads. We check for
1753	# pthread_cleanup_push because it is one of the few pthread
1754	# functions on Solaris that doesn't have a non-functional libc stub.
1755	# We try pthread_create on general principles.
1756	AC_TRY_LINK([#include <pthread.h>],
1757	[pthread_t th; pthread_join(th, 0);
1758	pthread_attr_init(0); pthread_cleanup_push(0, 0);
1759	pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
1760	[acx_pthread_ok=yes])
1761
1762	LIBS="$save_LIBS"
1763	LDFLAGS="$save_LDFLAGS"
1764	CFLAGS="$save_CFLAGS"
1765
1766	AC_MSG_RESULT($acx_pthread_ok)
1767	if test "x$acx_pthread_ok" = xyes; then
1768	break;
1769	fi
1770
1771	PTHREAD_LIBS=""
1772	PTHREAD_CFLAGS=""
1773	done
1774	fi
1775
1776	# Various other checks:
1777	if test "x$acx_pthread_ok" = xyes; then
1778	save_LIBS="$LIBS"
1779	LIBS="$PTHREAD_LIBS $LIBS"
1780	save_CFLAGS="$CFLAGS"
1781	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1782
1783	# Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
1784	AC_MSG_CHECKING([for joinable pthread attribute])
1785	attr_name=unknown
1786	for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
1787	AC_TRY_LINK([#include <pthread.h>], [int attr=$attr; return attr;],
1788	[attr_name=$attr; break])
1789	done
1790	AC_MSG_RESULT($attr_name)
1791	if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
1792	AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
1793	[Define to necessary symbol if this constant
1794	uses a non-standard name on your system.])
1795	fi
1796
1797	# Solaris lossage: default is obsolete semantics for getpwnam_r,
1798	# getpwuid_r, getgrgid_r, unless _POSIX_PTHREAD_SEMANTICS is defined
1799	AC_MSG_CHECKING([if more special flags are required for pthreads])
1800	flag=no
1801	case "${host_cpu}-${host_os}" in
1802	-aix \| -freebsd \| -darwin) flag="-D_THREAD_SAFE";;
1803	-osf \| -hpux) flag="-D_REENTRANT";;
1804	solaris) flag="-D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT";;
1805	esac
1806	AC_MSG_RESULT(${flag})
1807	if test "x$flag" != xno; then
1808	PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
1809	fi
1810
1811	# Detect PTHREAD_MUTEX_RECURSIVE
1812	AC_MSG_CHECKING([for recursive mutexes])
1813	mutex_recursive=no
1814	AC_TRY_LINK([
1815	#define _XOPEN_SOURCE 500
1816	#include <pthread.h>], [
1817	pthread_mutexattr_t mta;
1818	pthread_mutexattr_settype(&mta, PTHREAD_MUTEX_RECURSIVE);
1819	return 0;],[mutex_recursive=yes])
1820	if test "x$mutex_recursive" = "xyes"
1821	then
1822	AC_DEFINE(HAVE_PTHREAD_MUTEX_RECURSIVE,1,[Define if you have recursive mutexes.])
1823	fi
1824	AC_MSG_RESULT($mutex_recursive)
1825
1826	LIBS="$save_LIBS"
1827	CFLAGS="$save_CFLAGS"
1828
1829	# More AIX lossage: must compile with xlc_r or cc_r
1830	if test x"$GCC" != xyes; then
1831	AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC})
1832	else
1833	PTHREAD_CC=$CC
1834	fi
1835	else
1836	PTHREAD_CC="$CC"
1837	fi
1838
1839	AC_SUBST(PTHREAD_LIBS)
1840	AC_SUBST(PTHREAD_CFLAGS)
1841	AC_SUBST(PTHREAD_LDFLAGS)
1842	AC_SUBST(PTHREAD_CC)
1843
1844	# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
1845	if test x"$acx_pthread_ok" = xyes; then
1846	ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
1847	:
1848	else
1849	acx_pthread_ok=no
1850	$2
1851	fi
1852	AC_LANG_RESTORE
1853	])dnl ACX_PTHREAD
1854
1855	dnl -wedit:notab- Please keep this as the last line.
1856

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