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source: trunk/acinclude.m4@ 583

Last change on this file since 583 was 583, checked in by katerina, 32 hours ago
Fix for ticket #471 (autoreconf throws warnings/errors).
File size: 64.2 KB

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

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