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source: trunk/aclocal.m4@ 479

Last change on this file since 479 was 476, checked in by katerina, 9 years ago
Fix for ticket #373 (better autoconf macro for va_copy).
File size: 65.2 KB

Line
1	dnl aclocal.m4 generated automatically by aclocal 1.3
2
3	dnl Copyright (C) 1994, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
4	dnl This Makefile.in is free software; the Free Software Foundation
5	dnl gives unlimited permission to copy and/or distribute it,
6	dnl with or without modifications, as long as this notice is preserved.
7
8	dnl This program is distributed in the hope that it will be useful,
9	dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
10	dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
11	dnl PARTICULAR PURPOSE.
12
13	#
14	# Check to make sure that the build environment is sane.
15	#
16	AC_DEFUN([AM_INIT_AUTOMAKE],
17	[
18	AC_REQUIRE([AC_PROG_INSTALL])
19	PACKAGE=[$1]
20	AC_SUBST(PACKAGE)
21	VERSION=[$2]
22	AC_SUBST(VERSION)
23	dnl test to see if srcdir already configured
24	if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
25	AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
26	fi
27	ifelse([$3],,
28	AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE")
29	AC_DEFINE_UNQUOTED(VERSION, "$VERSION"))
30	AC_REQUIRE([AC_PROG_MAKE_SET])])
31
32
33	# Define a conditional.
34
35	AC_DEFUN([AM_CONDITIONAL],
36	[AC_SUBST($1_TRUE)
37	AC_SUBST($1_FALSE)
38	if $2; then
39	$1_TRUE=
40	$1_FALSE='#'
41	else
42	$1_TRUE='#'
43	$1_FALSE=
44	fi])
45
46
47	AC_DEFUN([sh_run_prog],
48	[if test "$cross_compiling" = "yes"; then
49	AC_MSG_ERROR([Can not probe non-portable values when cross compiling])
50	fi
51	cat > conftest.$ac_ext <<EOF
52	[#]line __oline__ "configure"
53	#include "confdefs.h"
54	ifelse(AC_LANG, CPLUSPLUS, [#ifdef __cplusplus
55	extern "C" void exit(int);
56	#endif
57	])
58	[$1]
59	EOF
60	if AC_TRY_EVAL(ac_link) && test -s conftest && $2=`(./conftest 2>/dev/null)`
61	then
62	dnl Don't remove the temporary files here, so they can be examined.
63	ifelse([$3], , :, [$3])
64	else
65	echo "configure: failed program was:" >&AC_FD_CC
66	cat conftest.$ac_ext >&AC_FD_CC
67	ifelse([$4], , , [ rm -fr conftest*
68	$4
69	])
70	fi
71	rm -fr conftest* ])
72
73	dnl fs type number of the proc filing system
74	AC_DEFUN([sh_procfs_id],
75	[AC_MSG_CHECKING([f_type of /proc])
76	AC_CACHE_VAL([sh_cv_proc_fstype],
77	[sh_run_prog(
78	changequote(<<, >>)dnl
79	<<#include <stdio.h>
80	#ifdef HAVE_STDLIB_H
81	#include <stdlib.h>
82	#endif /* HAVE_STDLIB_H */
83	#ifdef HAVE_UNISTD_H
84	#include <unistd.h>
85	#endif /* HAVE_UNISTD_H */
86	#ifdef HAVE_SYS_VFS_H
87	#include <sys/vfs.h>
88	#endif
89	#ifndef Q
90	#define __Q(x) #x
91	#define Q(x) __Q(x)
92	#endif
93	int main(void)
94	{
95	struct statfs fsbuf;
96	long ft;
97	if (statfs("/", &fsbuf)!=0)
98	exit(1);
99	ft=fsbuf.f_type;
100	if (statfs("/proc/1", &fsbuf)!=0)
101	exit(1);
102	if (ft!=fsbuf.f_type)
103	printf("0x%08lx", fsbuf.f_type);
104	else
105	puts("statfs useless");
106	exit(0);
107	} >>
108	changequote([, ]), sh_cv_proc_fstype,, sh_cv_proc_fstype="a fatal error occured")])
109	AC_MSG_RESULT($sh_cv_proc_fstype)
110	if test "${sh_cv_proc_fstype}" = "a fatal error occured"; then
111	$1=$2
112	$4
113	else if test "${sh_cv_proc_fstype}" = "statfs useless"; then
114	$1=$2
115	$4
116	else
117	$1=$sh_cv_proc_fstype
118	$3
119	fi; fi ])
120
121	# Check whether mlock is broken (hpux 10.20 raises a SIGBUS if mlock
122	# is not called from uid 0 (not tested whether uid 0 works)
123	dnl AC_CHECK_MLOCK
124	dnl
125	define([AC_CHECK_MLOCK],
126	[ AC_CHECK_FUNCS(mlock)
127	if test "$ac_cv_func_mlock" = "yes"; then
128	AC_MSG_CHECKING(whether mlock is broken)
129	AC_CACHE_VAL(ac_cv_have_broken_mlock,
130	AC_TRY_RUN([
131	#include <stdlib.h>
132	#include <unistd.h>
133	#include <errno.h>
134	#include <sys/mman.h>
135	#include <sys/types.h>
136	#include <fcntl.h>
137
138	int main()
139	{
140	char *pool;
141	int err;
142	long int pgsize = getpagesize();
143
144	pool = malloc( 4096 + pgsize );
145	if( !pool )
146	return 2;
147	pool += (pgsize - ((long int)pool % pgsize));
148
149	err = mlock( pool, 4096 );
150	if( !err \|\| errno == EPERM )
151	return 0; /* okay */
152
153	return 1; /* hmmm */
154	}
155
156	],
157	ac_cv_have_broken_mlock="no",
158	ac_cv_have_broken_mlock="yes",
159	ac_cv_have_broken_mlock="assume-no"
160	)
161	)
162	if test "$ac_cv_have_broken_mlock" = "yes"; then
163	AC_DEFINE(HAVE_BROKEN_MLOCK)
164	AC_MSG_RESULT(yes)
165	else
166	if test "$ac_cv_have_broken_mlock" = "no"; then
167	AC_MSG_RESULT(no)
168	else
169	AC_MSG_RESULT(assuming no)
170	fi
171	fi
172	fi
173	])
174
175	dnl @synopsis AC_FUNC_VSNPRINTF
176	dnl
177	dnl Check whether there is a reasonably sane vsnprintf() function installed.
178	dnl "Reasonably sane" in this context means never clobbering memory beyond
179	dnl the buffer supplied, and having a sensible return value. It is
180	dnl explicitly allowed not to NUL-terminate the return value, however.
181	dnl
182	dnl @version $Id: ac_func_vsnprintf.m4,v 1.1 2001/07/26 02:00:21 guidod Exp $
183	dnl @author Gaute Strokkenes <gs234@cam.ac.uk>
184	dnl
185	AC_DEFUN([SL_CHECK_VSNPRINTF],
186	[AC_CACHE_CHECK(for working vsnprintf,
187	ac_cv_func_vsnprintf,
188	[AC_TRY_RUN(
189	[#include <stdio.h>
190	#include <stdarg.h>
191
192	int
193	doit(char * s, ...)
194	{
195	char buffer[32];
196	va_list args;
197	int r;
198
199	buffer[5] = 'X';
200
201	va_start(args, s);
202	r = vsnprintf(buffer, 5, s, args);
203	va_end(args);
204
205	/* -1 is pre-C99, 7 is C99. R.W. 17.01.2003 disallow -1 */
206
207	if (r != 7)
208	exit(1);
209
210	/* We deliberately do not care if the result is NUL-terminated or
211	not, since this is easy to work around like this. */
212
213	buffer[4] = 0;
214
215	/* Simple sanity check. */
216
217	if (strcmp(buffer, "1234"))
218	exit(1);
219
220	if (buffer[5] != 'X')
221	exit(1);
222
223	exit(0);
224	}
225
226	int
227	main(void)
228	{
229	doit("1234567");
230	exit(1);
231	}], ac_cv_func_vsnprintf=yes, ac_cv_func_vsnprintf=no, ac_cv_func_vsnprintf=no)])
232	dnl Note that the default is to be pessimistic in the case
233	dnl of cross compilation.
234	dnl If you know that the target has a sensible vsnprintf(),
235	dnl you can get around this
236	dnl by setting ac_func_vsnprintf to yes, as described in the Autoconf manual.
237	if test $ac_cv_func_vsnprintf = yes; then
238	:
239	else
240	AC_DEFINE(HAVE_BROKEN_VSNPRINTF, 1,
241	[Define if you have a broken version of the `vsnprintf' function.])
242	fi
243	])# AC_FUNC_VSNPRINTF
244
245	dnl SH_CHECK_TYPEDEF(TYPE, HAVE_NAME)
246	dnl Check whether a typedef exists and create a #define $2 if it exists
247	dnl
248	AC_DEFUN([SH_CHECK_TYPEDEF],
249	[ AC_MSG_CHECKING(for $1 typedef)
250	sh_cv_typedef_foo=`echo sh_cv_typedef_$1 \| sed -e 's% %_%g'`
251	AC_CACHE_VAL( $sh_cv_typedef_foo,
252	[AC_TRY_COMPILE([
253	#include <stdlib.h>
254	#include <sys/types.h>
255	#ifdef HAVE_STDINT_H
256	#include <stdint.h>
257	#endif
258	#ifdef HAVE_INTTYPES_H
259	#include <inttypes.h>
260	#endif], [
261	#undef $1
262	int a = sizeof($1);
263	], sh_cv_typedef=yes, sh_cv_typedef=no )])
264	AC_MSG_RESULT($sh_cv_typedef)
265	if test "$sh_cv_typedef" = yes; then
266	AC_DEFINE($2)
267	sh_$2=yes
268	else
269	sh_$2=no
270	fi
271	])
272
273
274
275	dnl **********************
276	dnl * va_copy checks *
277	dnl **********************
278	# va_copy.m4 serial 1 (js-1.6.20070208)
279
280	dnl ## From the OpenWrt Project (http://openwrt.org)
281	dnl ## Project is GPL v2
282	dnl ##
283	dnl ##
284	dnl ## Check for C99 va_copy() implementation
285	dnl ## (and provide fallback implementation if neccessary)
286	dnl ##
287	dnl ## configure.in:
288	dnl ## AC_CHECK_VA_COPY
289	dnl ## foo.c:
290	dnl ## #include "config.h"
291	dnl ## [...]
292	dnl ## va_copy(d,s)
293	dnl ##
294	dnl ## This check is rather complex: first because we really have to
295	dnl ## try various possible implementations in sequence and second, we
296	dnl ## cannot define a macro in config.h with parameters directly.
297	dnl ##
298
299	dnl # test program for va_copy() implementation
300	changequote(<<,>>)
301	m4_define(__va_copy_test, <<[
302	#include <stdlib.h>
303	#include <stdarg.h>
304	#include <string.h>
305	#define DO_VA_COPY(d, s) $1
306	void test(char *str, ...)
307	{
308	va_list ap, ap2;
309	int i;
310	va_start(ap, str);
311	DO_VA_COPY(ap2, ap);
312	for (i = 1; i <= 9; i++) {
313	int k = (int)va_arg(ap, int);
314	if (k != i)
315	abort();
316	}
317	DO_VA_COPY(ap, ap2);
318	for (i = 1; i <= 9; i++) {
319	int k = (int)va_arg(ap, int);
320	if (k != i)
321	abort();
322	}
323	va_end(ap);
324	}
325	int main(int argc, char *argv[])
326	{
327	test("test", 1, 2, 3, 4, 5, 6, 7, 8, 9);
328	exit(0);
329	}
330	]>>)
331	changequote([,])
332
333	dnl # test driver for va_copy() implementation
334	m4_define(__va_copy_check, [
335	AH_VERBATIM($1,
336	[/* Predefined possible va_copy() implementation (id: $1) */
337	#define __VA_COPY_USE_$1(d, s) $2])
338	if test ".$ac_cv_va_copy" = .; then
339	AC_TRY_RUN(__va_copy_test($2), [ac_cv_va_copy="$1"])
340	fi
341	])
342
343	dnl # Autoconf check for va_copy() implementation checking
344	AC_DEFUN([AC_CHECK_VA_COPY],[
345	dnl # provide Autoconf display check message
346	AC_MSG_CHECKING(for va_copy() function)
347	dnl # check for various implementations in priorized sequence
348	AC_CACHE_VAL(ac_cv_va_copy, [
349	ac_cv_va_copy=""
350	dnl # 1. check for standardized C99 macro
351	__va_copy_check(C99, [va_copy((d), (s))])
352	dnl # 2. check for alternative/deprecated GCC macro
353	__va_copy_check(GCM, [VA_COPY((d), (s))])
354	dnl # 3. check for internal GCC macro (high-level define)
355	__va_copy_check(GCH, [__va_copy((d), (s))])
356	dnl # 4. check for internal GCC macro (built-in function)
357	__va_copy_check(GCB, [__builtin_va_copy((d), (s))])
358	dnl # 5. check for assignment approach (assuming va_list is a struct)
359	__va_copy_check(ASS, [do { (d) = (s); } while (0)])
360	dnl # 6. check for assignment approach (assuming va_list is a pointer)
361	__va_copy_check(ASP, [do { (d) = (s); } while (0)])
362	dnl # 7. check for memory copying approach (assuming va_list is a struct)
363	__va_copy_check(CPS, [memcpy((void )&(d), (void )&(s)), sizeof((s))])
364	dnl # 8. check for memory copying approach (assuming va_list is a pointer)
365	__va_copy_check(CPP, [memcpy((void )(d), (void )(s)), sizeof(*(s))])
366	if test ".$ac_cv_va_copy" = .; then
367	AC_ERROR([no working implementation found])
368	fi
369	])
370	dnl # optionally activate the fallback implementation
371	if test ".$ac_cv_va_copy" = ".C99"; then
372	AC_DEFINE(HAVE_VA_COPY, 1, [Define if va_copy() macro exists (and no fallback implementation is required)])
373	fi
374	dnl # declare which fallback implementation to actually use
375	AC_DEFINE_UNQUOTED([__VA_COPY_USE], [__VA_COPY_USE_$ac_cv_va_copy],
376	[Define to id of used va_copy() implementation])
377	dnl # provide activation hook for fallback implementation
378	AH_VERBATIM([__VA_COPY_ACTIVATION],
379	[/* Optional va_copy() implementation activation */
380	#ifndef HAVE_VA_COPY
381	#define va_copy(d, s) __VA_COPY_USE(d, s)
382	#endif
383	])
384	dnl # provide Autoconf display result message
385	if test ".$ac_cv_va_copy" = ".C99"; then
386	AC_MSG_RESULT([yes])
387	else
388	AC_MSG_RESULT([no (using fallback implementation)])
389	fi
390	])
391
392
393	dnl SH_INIT_PARSE_ARGS()
394	m4_define([SH_INIT_PARSE_ARGS],
395	[
396	m4_divert_push([PARSE_ARGS])dnl
397
398	as_cr_letters='abcdefghijklmnopqrstuvwxyz'
399	as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
400	as_cr_Letters=$as_cr_letters$as_cr_LETTERS
401	as_cr_digits='0123456789'
402	as_cr_alnum=$as_cr_Letters$as_cr_digits
403
404	# Sed expression to map a string onto a valid CPP name.
405	as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[[^_$as_cr_alnum]]%_%g"
406
407	as_tr_sh="eval sed 'y%*+%pp%;s%[[^_$as_cr_alnum]]%_%g'"
408	# IFS
409	# We need space, tab and new line, in precisely that order.
410	as_nl='
411	'
412	IFS=" $as_nl"
413
414	# CDPATH.
415	$as_unset CDPATH \|\| test "${CDPATH+set}" != set \|\| { CDPATH=$PATH_SEPARATOR; export CDPATH; }
416
417
418	# Initialize some variables set by options.
419	ac_init_help=
420	ac_init_version=false
421	# The variables have the same names as the options, with
422	# dashes changed to underlines.
423	cache_file=/dev/null
424	AC_SUBST(exec_prefix, NONE)dnl
425	no_create=
426	no_recursion=
427	AC_SUBST(prefix, NONE)dnl
428	program_prefix=NONE
429	program_suffix=NONE
430	AC_SUBST(program_transform_name, [s,x,x,])dnl
431	silent=
432	site=
433	srcdir=
434	verbose=
435	x_includes=NONE
436	x_libraries=NONE
437	DESTDIR=
438	SH_ENABLE_OPTS="asm ssp db-reload xml-log message-queue login-watch process-check port-check mounts-check logfile-monitor userfiles debug ptrace static network udp nocl stealth micro-stealth install-name identity khide suidcheck base largefile mail external-scripts encrypt srp dnmalloc ipv6 shellexpand suid"
439	SH_WITH_OPTS="prelude libprelude-prefix database libwrap cflags libs console altconsole timeserver alttimeserver rnd egd-socket port logserver altlogserver kcheck gpg keyid checksum fp recipient sender trusted tmp-dir config-file log-file pid-file state-dir data-file html-file"
440
441	# Installation directory options.
442	# These are left unexpanded so users can "make install exec_prefix=/foo"
443	# and all the variables that are supposed to be based on exec_prefix
444	# by default will actually change.
445	dnl Use braces instead of parens because sh, perl, etc. also accept them.
446	sbindir='${exec_prefix}/sbin'
447	sysconfdir='${prefix}/etc'
448	localstatedir='${prefix}/var'
449	mandir='${prefix}/share/man'
450
451	AC_SUBST([sbindir], ['${exec_prefix}/sbin'])dnl
452	AC_SUBST([sysconfdir], ['${prefix}/etc'])dnl
453	AC_SUBST([localstatedir], ['${prefix}/var'])dnl
454	AC_SUBST([mandir], ['${prefix}/share/man'])dnl
455
456
457	# Initialize some other variables.
458	subdirs=
459	MFLAGS= MAKEFLAGS=
460	SHELL=${CONFIG_SHELL-/bin/sh}
461	# Maximum number of lines to put in a shell here document.
462	ac_max_here_lines=12
463
464	ac_prev=
465	for ac_option
466	do
467
468	# If the previous option needs an argument, assign it.
469	if test -n "$ac_prev"; then
470	eval "$ac_prev=\$ac_option"
471	ac_prev=
472	continue
473	fi
474
475	case "$ac_option" in
476	changequote(, )dnl
477	=) ac_optarg=`echo "$ac_option" \| sed 's/[-_a-zA-Z0-9]*=//'` ;;
478	changequote([, ])dnl
479	*) ac_optarg= ;;
480	esac
481
482	# Accept the important Cygnus configure options, so we can diagnose typos.
483
484	case "$ac_option" in
485
486	-build \| --build \| --buil \| --bui \| --bu)
487	ac_prev=build_alias ;;
488	-build=* \| --build=* \| --buil=* \| --bui=* \| --bu=*)
489	build_alias="$ac_optarg" ;;
490
491	-cache-file \| --cache-file \| --cache-fil \| --cache-fi \
492	\| --cache-f \| --cache- \| --cache \| --cach \| --cac \| --ca \| --c)
493	ac_prev=cache_file ;;
494	-cache-file=* \| --cache-file=* \| --cache-fil=* \| --cache-fi=* \
495	\| --cache-f=* \| --cache-=* \| --cache=* \| --cach=* \| --cac=* \| --ca=* \| --c=*)
496	cache_file="$ac_optarg" ;;
497
498	--config-cache \| -C)
499	cache_file=config.cache ;;
500
501	-disable-* \| --disable-*)
502	ac_feature=`expr "x$ac_option" : 'x-disable-\(.\)'`
503	# Reject names that are not valid shell variable names.
504	expr "x$ac_feature" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
505	AC_MSG_ERROR([invalid feature name: $ac_feature])
506	ac_feature=`echo $ac_feature \| sed 's/-/_/g'`
507	ac_enable_check_opt=no
508	for f in ${SH_ENABLE_OPTS}
509	do
510	f=`echo $f \| sed 's/-/_/g'`
511	if test x${f} = x"${ac_feature}"
512	then
513	ac_enable_check_opt=yes
514	fi
515	done
516	if test x${ac_enable_check_opt} = xno
517	then
518	AC_MSG_ERROR([unrecognized option: $ac_option
519	Try `$[0] --help' for more information.])
520	fi
521	eval "enable_$ac_feature=no" ;;
522
523	-enable-* \| --enable-*)
524	ac_feature=`expr "x$ac_option" : 'x-enable-\([[^=]]\)'`
525	# Reject names that are not valid shell variable names.
526	expr "x$ac_feature" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
527	AC_MSG_ERROR([invalid feature name: $ac_feature])
528	ac_feature=`echo $ac_feature \| sed 's/-/_/g'`
529	case $ac_option in
530	=) ac_optarg=`echo "$ac_optarg" \| sed "s/'/'\\\\\\\\''/g"`;;
531	*) ac_optarg=yes ;;
532	esac
533	ac_enable_check_opt=no
534	for f in ${SH_ENABLE_OPTS}
535	do
536	f=`echo $f \| sed 's/-/_/g'`
537	if test x${f} = x"${ac_feature}"
538	then
539	ac_enable_check_opt=yes
540	fi
541	done
542	if test x${ac_enable_check_opt} = xno
543	then
544	AC_MSG_ERROR([unrecognized option: $ac_option
545	Try `$[0] --help' for more information.])
546	fi
547	eval "enable_$ac_feature='$ac_optarg'" ;;
548
549	-exec-prefix \| --exec_prefix \| --exec-prefix \| --exec-prefi \
550	\| --exec-pref \| --exec-pre \| --exec-pr \| --exec-p \| --exec- \
551	\| --exec \| --exe \| --ex)
552	ac_prev=exec_prefix
553	ac_exec_prefix_set="yes"
554	;;
555	-exec-prefix=* \| --exec_prefix=* \| --exec-prefix=* \| --exec-prefi=* \
556	\| --exec-pref=* \| --exec-pre=* \| --exec-pr=* \| --exec-p=* \| --exec-=* \
557	\| --exec=* \| --exe=* \| --ex=*)
558	exec_prefix="$ac_optarg"
559	ac_exec_prefix_set="yes"
560	;;
561
562	-gas \| --gas \| --ga \| --g)
563	# Obsolete; use --with-gas.
564	with_gas=yes ;;
565
566	-help \| --help \| --hel \| --he \| -h)
567	ac_init_help=long ;;
568	-help=r* \| --help=r* \| --hel=r* \| --he=r* \| -hr*)
569	ac_init_help=recursive ;;
570	-help=s* \| --help=s* \| --hel=s* \| --he=s* \| -hs*)
571	ac_init_help=short ;;
572
573	-host \| --host \| --hos \| --ho)
574	ac_prev=host_alias ;;
575	-host=* \| --host=* \| --hos=* \| --ho=*)
576	host_alias="$ac_optarg" ;;
577
578	-localstatedir \| --localstatedir \| --localstatedi \| --localstated \
579	\| --localstate \| --localstat \| --localsta \| --localst \
580	\| --locals \| --local \| --loca \| --loc \| --lo)
581	ac_prev=localstatedir
582	ac_localstatedir_set="yes"
583	;;
584	-localstatedir=* \| --localstatedir=* \| --localstatedi=* \| --localstated=* \
585	\| --localstate=* \| --localstat=* \| --localsta=* \| --localst=* \
586	\| --locals=* \| --local=* \| --loca=* \| --loc=* \| --lo=*)
587	localstatedir="$ac_optarg"
588	ac_localstatedir_set="yes"
589	;;
590
591	-mandir \| --mandir \| --mandi \| --mand \| --man \| --ma \| --m)
592	ac_prev=mandir
593	ac_mandir_set="yes"
594	;;
595	-mandir=* \| --mandir=* \| --mandi=* \| --mand=* \| --man=* \| --ma=* \| --m=*)
596	mandir="$ac_optarg"
597	ac_mandir_set="yes"
598	;;
599
600	-nfp \| --nfp \| --nf)
601	# Obsolete; use --without-fp.
602	with_fp=no ;;
603
604	-no-create \| --no-create \| --no-creat \| --no-crea \| --no-cre \
605	\| --no-cr \| --no-c \| -n)
606	no_create=yes ;;
607
608	-no-recursion \| --no-recursion \| --no-recursio \| --no-recursi \
609	\| --no-recurs \| --no-recur \| --no-recu \| --no-rec \| --no-re \| --no-r)
610	no_recursion=yes ;;
611
612	-prefix \| --prefix \| --prefi \| --pref \| --pre \| --pr \| --p)
613	ac_prev=prefix
614	ac_prefix_set="yes"
615	;;
616	-prefix=* \| --prefix=* \| --prefi=* \| --pref=* \| --pre=* \| --pr=* \| --p=*)
617	prefix="$ac_optarg"
618	ac_prefix_set="yes"
619	;;
620
621	-q \| -quiet \| --quiet \| --quie \| --qui \| --qu \| --q \
622	\| -silent \| --silent \| --silen \| --sile \| --sil)
623	silent=yes ;;
624
625	-sbindir \| --sbindir \| --sbindi \| --sbind \| --sbin \| --sbi \| --sb)
626	ac_prev=sbindir
627	ac_sbindir_set="yes"
628	;;
629	-sbindir=* \| --sbindir=* \| --sbindi=* \| --sbind=* \| --sbin=* \
630	\| --sbi=* \| --sb=*)
631	sbindir="$ac_optarg"
632	ac_sbindir_set="yes"
633	;;
634
635	-bindir \| --bindir \| --bindi \| --bind \| --bin \| --bi \| --b)
636	echo "WARNING: bindir will be ignored, use sbindir"
637	;;
638	-bindir=* \| --bindir=* \| --bindi=* \| --bind=* \| --bin=* \
639	\| --bi=* \| --b=*)
640	echo "WARNING: bindir will be ignored, use sbindir"
641	;;
642
643	-datadir \| --datadir)
644	echo "WARNING: datadir will be ignored"
645	;;
646	-datadir=* \| --datadir=*)
647	echo "WARNING: datadir will be ignored"
648	;;
649
650	-includedir \| --includedir)
651	echo "WARNING: includedir will be ignored"
652	;;
653	-includedir=* \| --includedir=*)
654	echo "WARNING: includedir will be ignored"
655	;;
656
657	-infodir \| --infodir)
658	echo "WARNING: infodir will be ignored"
659	;;
660	-infodir=* \| --infodir=*)
661	echo "WARNING: infodir will be ignored"
662	;;
663
664	-libdir \| --libdir)
665	echo "WARNING: libdir will be ignored"
666	;;
667	-libdir=* \| --libdir=*)
668	echo "WARNING: libdir will be ignored"
669	;;
670
671	-libexecdir \| --libexecdir)
672	echo "WARNING: libexecdir will be ignored"
673	;;
674	-libexecdir=* \| --libexecdir=*)
675	echo "WARNING: libexecdir will be ignored"
676	;;
677
678	-sharedstatedir \| --sharedstatedir)
679	echo "WARNING: sharedstatedir will be ignored"
680	;;
681	-sharedstatedir=* \| --sharedstatedir=*)
682	echo "WARNING: sharedstatedir will be ignored"
683	;;
684
685	-site \| --site \| --sit)
686	ac_prev=site ;;
687	-site=* \| --site=* \| --sit=*)
688	site="$ac_optarg" ;;
689
690	-srcdir \| --srcdir \| --srcdi \| --srcd \| --src \| --sr)
691	ac_prev=srcdir ;;
692	-srcdir=* \| --srcdir=* \| --srcdi=* \| --srcd=* \| --src=* \| --sr=*)
693	srcdir="$ac_optarg" ;;
694
695	-sysconfdir \| --sysconfdir \| --sysconfdi \| --sysconfd \| --sysconf \
696	\| --syscon \| --sysco \| --sysc \| --sys \| --sy)
697	ac_prev=sysconfdir
698	ac_sysconfdir_set="yes"
699	;;
700	-sysconfdir=* \| --sysconfdir=* \| --sysconfdi=* \| --sysconfd=* \| --sysconf=* \
701	\| --syscon=* \| --sysco=* \| --sysc=* \| --sys=* \| --sy=*)
702	sysconfdir="$ac_optarg"
703	ac_sysconfdir_set="yes"
704	;;
705
706	-target \| --target \| --targe \| --targ \| --tar \| --ta \| --t)
707	ac_prev=target_alias ;;
708	-target=* \| --target=* \| --targe=* \| --targ=* \| --tar=* \| --ta=* \| --t=*)
709	target_alias="$ac_optarg" ;;
710
711	-v \| -verbose \| --verbose \| --verbos \| --verbo \| --verb)
712	verbose=yes ;;
713
714	-version \| --version \| --versio \| --versi \| --vers)
715	ac_init_version=: ;;
716
717
718	-with-* \| --with-*)
719	ac_package=`expr "x$ac_option" : 'x-with-\([[^=]]\)'`
720	# Reject names that are not valid shell variable names.
721	expr "x$ac_package" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
722	AC_MSG_ERROR([invalid package name: $ac_package])
723	ac_package=`echo $ac_package\| sed 's/-/_/g'`
724	case $ac_option in
725	=) ac_optarg=`echo "$ac_optarg" \| sed "s/'/'\\\\\\\\''/g"`;;
726	*) ac_optarg=yes ;;
727	esac
728	ac_with_check_opt=no
729	for f in ${SH_WITH_OPTS}
730	do
731	f=`echo $f \| sed 's/-/_/g'`
732	if test x${f} = x"${ac_package}"
733	then
734	ac_with_check_opt=yes
735	fi
736	done
737	if test x${ac_with_check_opt} = xno
738	then
739	AC_MSG_ERROR([unrecognized option: $ac_option
740	Try `$[0] --help' for more information.])
741	fi
742	eval "with_$ac_package='$ac_optarg'" ;;
743
744	-without-* \| --without-*)
745	ac_package=`expr "x$ac_option" : 'x-without-\(.\)'`
746	# Reject names that are not valid shell variable names.
747	expr "x$ac_package" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
748	AC_MSG_ERROR([invalid package name: $ac_package])
749	ac_package=`echo $ac_package \| sed 's/-/_/g'`
750	ac_with_check_opt=no
751	for f in ${SH_WITH_OPTS}
752	do
753	f=`echo $f \| sed 's/-/_/g'`
754	if test x${f} = x"${ac_package}"
755	then
756	ac_with_check_opt=yes
757	fi
758	done
759	if test x${ac_with_check_opt} = xno
760	then
761	AC_MSG_ERROR([unrecognized option: $ac_option
762	Try `$[0] --help' for more information.])
763	fi
764	eval "with_$ac_package=no" ;;
765
766
767	-*) AC_MSG_ERROR([unrecognized option: $ac_option
768	Try `$[0] --help' for more information.])
769	;;
770
771	=)
772	ac_envvar=`expr "x$ac_option" : 'x\([[^=]]*\)='`
773	# Reject names that are not valid shell variable names.
774	expr "x$ac_envvar" : "[.*[^_$as_cr_alnum]]" >/dev/null &&
775	AC_MSG_ERROR([invalid variable name: $ac_envvar])
776	ac_optarg=`echo "$ac_optarg" \| sed "s/'/'\\\\\\\\''/g"`
777	eval "$ac_envvar='$ac_optarg'"
778	export $ac_envvar ;;
779
780	*)
781	# FIXME: should be removed in autoconf 3.0.
782	AC_MSG_WARN([you should use --build, --host, --target])
783	expr "x$ac_option" : "[.*[^-._$as_cr_alnum]]" >/dev/null &&
784	AC_MSG_WARN([invalid host type: $ac_option])
785	: ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
786	;;
787
788
789	esac
790	done
791
792	if test -n "$ac_prev"; then
793	AC_MSG_ERROR(missing argument to --`echo $ac_prev \| sed 's/_/-/g'`)
794	fi
795
796	# Be sure to have absolute paths.
797	for ac_var in prefix exec_prefix
798	do
799	eval ac_val=$`echo $ac_var`
800	case $ac_val in
801	[[\\/$]]* \| ?:[[\\/]]* \| NONE \| '' \| OPT \| USR ) ;;
802	*) AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val]);;
803	esac
804	done
805
806	# Be sure to have absolute paths.
807	for ac_var in sbindir sysconfdir localstatedir mandir
808	do
809	eval ac_val=$`echo $ac_var`
810	case $ac_val in
811	[[\\/$]]* \| ?:[[\\/]]* ) ;;
812	*) AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val]);;
813	esac
814	done
815
816	# There might be people who depend on the old broken behavior: `$host'
817	# used to hold the argument of --host etc.
818	# FIXME: To remove some day.
819	build=$build_alias
820	host=$host_alias
821	target=$target_alias
822
823	# FIXME: To remove some day.
824	if test "x$host_alias" != x; then
825	if test "x$build_alias" = x; then
826	cross_compiling=maybe
827	AC_MSG_WARN([If you wanted to set the --build type, don't use --host.
828	If a cross compiler is detected then cross compile mode will be used.])
829	elif test "x$build_alias" != "x$host_alias"; then
830	cross_compiling=yes
831	fi
832	fi
833
834	ac_tool_prefix=
835	test -n "$host_alias" && ac_tool_prefix=$host_alias-
836
837	test "$silent" = yes && exec AS_MESSAGE_FD>/dev/null
838
839	m4_divert_pop([PARSE_ARGS])dnl
840	])# SH_INIT_PARSE_ARGS
841
842	m4_define([SH_INIT_HELP],
843	[m4_divert_push([HELP_BEGIN])dnl
844
845	#
846	# Report the --help message.
847	#
848	if test "$ac_init_help" = "long"; then
849	# Omit some internal or obsolete options to make the list less imposing.
850	# This message is too long to be a string in the A/UX 3.1 sh.
851	cat <<_ACEOF
852	\`configure' configures m4_ifset([AC_PACKAGE_STRING],
853	[AC_PACKAGE_STRING],
854	[this package]) to adapt to many kinds of systems.
855
856	Usage: $[0] [[OPTION]]... [[VAR=VALUE]]...
857
858	[To assign environment variables (e.g., CC, CFLAGS...), specify them as
859	VAR=VALUE. See below for descriptions of some of the useful variables.
860
861	Defaults for the options are specified in brackets.
862
863	Configuration:
864	-h, --help display this help and exit
865	--help=short display options specific to this package
866	--help=recursive display the short help of all the included packages
867	-V, --version display version information and exit
868	-q, --quiet, --silent do not print \`checking...' messages
869	--cache-file=FILE cache test results in FILE [disabled]
870	-C, --config-cache alias for \`--cache-file=config.cache'
871	-n, --no-create do not create output files
872	--srcdir=DIR find the sources in DIR [configure dir or \`..']
873
874	_ACEOF
875
876	cat <<_ACEOF
877	Installation directories:
878	--prefix=PREFIX install architecture-independent files in PREFIX
879	[$ac_default_prefix]
880	--exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
881	[PREFIX]
882
883	By default, \`make install' will install binaries in \`/usr/local/sbin',
884	the config file in \`/etc', manpage in \`/usr/local/share/man', and state
885	data in \`/var/lib/INSTALL_NAME' (FSH layout). You can specify other
886	FSH compliant layouts with \`--prefix=OPT' or \`--prefix=USR', or you
887	can specify a directory with \`--prefix=DIR' to install in \`DIR/sbin',
888	\`DIR/etc', etc.
889
890	For better control, use the options below.
891
892	Fine tuning of the installation directories:
893	--sbindir=DIR system admin executables [EPREFIX/sbin]
894	--sysconfdir=DIR read-only single-machine data [PREFIX/etc]
895	--localstatedir=DIR modifiable single-machine data [PREFIX/var]
896	--mandir=DIR man documentation [PREFIX/man]
897
898	For even finer tuning, paths can be specified for individual files (see below)
899
900	_ACEOF
901
902	cat <<\_ACEOF]
903	m4_divert_pop([HELP_BEGIN])dnl
904	dnl The order of the diversions here is
905	dnl - HELP_BEGIN
906	dnl which may be prolongated by extra generic options such as with X or
907	dnl AC_ARG_PROGRAM. Displayed only in long --help.
908	dnl
909	dnl - HELP_CANON
910	dnl Support for cross compilation (--build, --host and --target).
911	dnl Display only in long --help.
912	dnl
913	dnl - HELP_ENABLE
914	dnl which starts with the trailer of the HELP_BEGIN, HELP_CANON section,
915	dnl then implements the header of the non generic options.
916	dnl
917	dnl - HELP_WITH
918	dnl
919	dnl - HELP_VAR
920	dnl
921	dnl - HELP_VAR_END
922	dnl
923	dnl - HELP_END
924	dnl initialized below, in which we dump the trailer (handling of the
925	dnl recursion for instance).
926	m4_divert_push([HELP_ENABLE])dnl
927	_ACEOF
928	fi
929
930	if test -n "$ac_init_help"; then
931	m4_ifset([AC_PACKAGE_STRING],
932	[ case $ac_init_help in
933	short \| recursive ) echo "Configuration of AC_PACKAGE_STRING:";;
934	esac])
935	cat <<\_ACEOF
936	m4_divert_pop([HELP_ENABLE])dnl
937	m4_divert_push([HELP_END])dnl
938	m4_ifset([AC_PACKAGE_BUGREPORT], [
939	Report bugs to <AC_PACKAGE_BUGREPORT>.])
940	_ACEOF
941	fi
942
943	if test "$ac_init_help" = "recursive"; then
944	# If there are subdirs, report their specific --help.
945	ac_popdir=`pwd`
946	for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
947	test -d $ac_dir \|\| continue
948	_AC_SRCPATHS(["$ac_dir"])
949	cd $ac_dir
950	# Check for guested configure; otherwise get Cygnus style configure.
951	if test -f $ac_srcdir/configure.gnu; then
952	echo
953	$SHELL $ac_srcdir/configure.gnu --help=recursive
954	elif test -f $ac_srcdir/configure; then
955	echo
956	$SHELL $ac_srcdir/configure --help=recursive
957	elif test -f $ac_srcdir/configure.ac \|\|
958	test -f $ac_srcdir/configure.in; then
959	echo
960	$ac_configure --help
961	else
962	AC_MSG_WARN([no configuration information is in $ac_dir])
963	fi
964	cd $ac_popdir
965	done
966	fi
967
968	test -n "$ac_init_help" && exit 0
969	m4_divert_pop([HELP_END])dnl
970	])# SH_INIT_HELP
971
972
973
974
975
976
977
978
979	# Check whether sa_sigaction works.
980	# Rainer Wichmann <support@la-samhna.de>, 2003.
981	#
982	# This file can be copied and used freely without restrictions. It can
983	# be used in projects which are not available under the GNU Public License.
984
985	# serial 1
986
987	AC_DEFUN([AM_SA_SIGACTION_WORKS],
988	[
989	am_cv_val_SA_SIGACTION=no
990	AC_CHECK_HEADER(signal.h,
991	[
992	AM_SI_USER
993	AM_SA_SIGINFO
994	if test $am_cv_val_SI_USER = yes && test $am_cv_val_SA_SIGINFO = yes
995	then
996	AC_TRY_RUN([
997	#include <signal.h>
998	#include <setjmp.h>
999	#include <stdio.h>
1000	#include <stdlib.h>
1001
1002	volatile int xnum = 0;
1003	volatile int xcode = 0;
1004	jmp_buf Buf;
1005	int xsig = SIGSEGV;
1006
1007	void sighandler (int xsignam, siginfo_t * xsiginfo, void * xsigadd)
1008	{
1009	static sigset_t x;
1010
1011	if (xsiginfo == NULL)
1012	exit(__LINE__);
1013	if (xsiginfo->si_signo != xsignam)
1014	exit(__LINE__);
1015	++xnum;
1016	xcode = xsiginfo->si_code;
1017	sigemptyset (&x);
1018	sigprocmask(SIG_SETMASK, &x, NULL);
1019	longjmp ( Buf, 1);
1020	}
1021
1022	int main ()
1023	{
1024	struct sigaction newact;
1025
1026	newact.sa_sigaction = sighandler;
1027	sigemptyset (&newact.sa_mask);
1028	newact.sa_flags = SA_SIGINFO;
1029	if (0 != sigaction (xsig, &newact, NULL))
1030	exit (__LINE__);
1031	if(setjmp ( Buf)) {
1032	if (xnum > 1)
1033	goto Third;
1034	goto Second;
1035	}
1036	memcpy((void *) 0x0, "test", 5);
1037	Second:
1038	if (xcode == SI_USER)
1039	exit (__LINE__);
1040	raise(xsig);
1041	Third:
1042	if (xcode != SI_USER)
1043	exit (__LINE__);
1044	if (xnum != 2)
1045	exit (__LINE__);
1046	return (0);
1047	}], am_cv_val_SA_SIGACTION=yes, am_cv_val_SA_SIGACTION=no, am_cv_val_SA_SIGACTION=no)
1048	fi
1049	])
1050	AC_MSG_CHECKING([whether sa_sigaction is supported])
1051	if test $am_cv_val_SA_SIGACTION = yes
1052	then
1053	AC_MSG_RESULT(yes)
1054	AC_DEFINE([SA_SIGACTION_WORKS], 1, [Define if sa_sigaction works])
1055	else
1056	AC_MSG_RESULT(no)
1057	fi
1058	])
1059
1060	# Check whether SI_USER is available in <signal.h>.
1061	# Rainer Wichmann <support@la-samhna.de>, 2003.
1062	#
1063	# This file can be copied and used freely without restrictions. It can
1064	# be used in projects which are not available under the GNU Public License.
1065
1066	# serial 1
1067
1068
1069	AC_DEFUN([AM_SI_USER],
1070	[if test $ac_cv_header_signal_h = yes; then
1071	AC_CACHE_CHECK([for SI_USER in signal.h], am_cv_val_SI_USER,
1072	[AC_TRY_LINK([#include <signal.h>], [return SI_USER],
1073	am_cv_val_SI_USER=yes, am_cv_val_SI_USER=no)])
1074	if test $am_cv_val_SI_USER = yes; then
1075	AC_DEFINE([HAVE_SI_USER], 1, [Define if you have SI_USER])
1076	fi
1077	fi])
1078
1079	# Check whether SA_SIGINFO is available in <signal.h>.
1080	# Rainer Wichmann <support@la-samhna.de>, 2003.
1081	#
1082	# This file can be copied and used freely without restrictions. It can
1083	# be used in projects which are not available under the GNU Public License.
1084
1085	# serial 1
1086
1087
1088	AC_DEFUN([AM_SA_SIGINFO],
1089	[if test $ac_cv_header_signal_h = yes; then
1090	AC_CACHE_CHECK([for SA_SIGINFO in signal.h], am_cv_val_SA_SIGINFO,
1091	[AC_TRY_LINK([#include <signal.h>], [return SA_SIGINFO],
1092	am_cv_val_SA_SIGINFO=yes, am_cv_val_SA_SIGINFO=no)])
1093	if test $am_cv_val_SA_SIGINFO = yes; then
1094	AC_DEFINE([HAVE_SA_SIGINFO], 1, [Define if you have SA_SIGINFO])
1095	fi
1096	fi])
1097
1098	dnl
1099	dnl Useful macros for autoconf to check for ssp-patched gcc
1100	dnl 1.0 - September 2003 - Tiago Sousa <mirage@kaotik.org>
1101	dnl 1.1 - August 2006 - Ted Percival <ted@midg3t.net>
1102	dnl * Stricter language checking (C or C++)
1103	dnl * Adds GCC_STACK_PROTECT_LIB to add -lssp to LDFLAGS as necessary
1104	dnl * Caches all results
1105	dnl * Uses macros to ensure correct ouput in quiet/silent mode
1106	dnl 1.2 - April 2007 - Ted Percival <ted@midg3t.net>
1107	dnl * Added GCC_STACK_PROTECTOR macro for simpler (one-line) invocation
1108	dnl * GCC_STACK_PROTECT_LIB now adds -lssp to LIBS rather than LDFLAGS
1109	dnl
1110	dnl About ssp:
1111	dnl GCC extension for protecting applications from stack-smashing attacks
1112	dnl http://www.research.ibm.com/trl/projects/security/ssp/
1113	dnl
1114	dnl Usage:
1115	dnl Most people will simply call GCC_STACK_PROTECTOR.
1116	dnl If you only use one of C or C++, you can save time by only calling the
1117	dnl macro appropriate for that language. In that case you should also call
1118	dnl GCC_STACK_PROTECT_LIB first.
1119	dnl
1120	dnl GCC_STACK_PROTECTOR
1121	dnl Tries to turn on stack protection for C and C++ by calling the following
1122	dnl three macros with the right languages.
1123	dnl
1124	dnl GCC_STACK_PROTECT_CC
1125	dnl checks -fstack-protector with the C compiler, if it exists then updates
1126	dnl CFLAGS and defines ENABLE_SSP_CC
1127	dnl
1128	dnl GCC_STACK_PROTECT_CXX
1129	dnl checks -fstack-protector with the C++ compiler, if it exists then updates
1130	dnl CXXFLAGS and defines ENABLE_SSP_CXX
1131	dnl
1132	dnl GCC_STACK_PROTECT_LIB
1133	dnl adds -lssp to LIBS if it is available
1134	dnl ssp is usually provided as part of libc, but was previously a separate lib
1135	dnl It does not hurt to add -lssp even if libc provides SSP - in that case
1136	dnl libssp will simply be ignored.
1137	dnl
1138
1139	AC_DEFUN([GCC_STACK_PROTECT_LIB],[
1140	AC_CACHE_CHECK([whether libssp exists], ssp_cv_lib,
1141	[ssp_old_libs="$LIBS"
1142	LIBS="$LIBS -lssp"
1143	AC_TRY_LINK(,, ssp_cv_lib=yes, ssp_cv_lib=no)
1144	LIBS="$ssp_old_libs"
1145	])
1146	if test $ssp_cv_lib = yes; then
1147	LIBS="$LIBS -lssp"
1148	fi
1149	])
1150
1151	AC_DEFUN([GCC_STACK_PROTECT_CC],[
1152	AC_LANG_ASSERT(C)
1153	if test "X$CC" != "X"; then
1154	AC_CACHE_CHECK([whether ${CC} accepts -fstack-protector-all],
1155	ssp_cv_cc,
1156	[ssp_old_cflags="$CFLAGS"
1157	CFLAGS="$CFLAGS -fstack-protector-all"
1158	AC_TRY_COMPILE(,, ssp_cv_cc=yes, ssp_cv_cc=no)
1159	CFLAGS="$ssp_old_cflags"
1160	])
1161	if test $ssp_cv_cc = no; then
1162	AC_CACHE_CHECK([whether ${CC} accepts -fstack-protector],
1163	ssp_cv_cc,
1164	[ssp_old_cflags="$CFLAGS"
1165	CFLAGS="$CFLAGS -fstack-protector"
1166	AC_TRY_COMPILE(,, ssp_cv_cc=yes, ssp_cv_cc=no)
1167	CFLAGS="$ssp_old_cflags"
1168	])
1169	if test $ssp_cv_cc = yes; then
1170	CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector"
1171	LDFLAGS="$LDFLAGS -fstack-protector"
1172	AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])
1173	fi
1174	else
1175	if test $ssp_cv_cc = yes; then
1176	CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector-all"
1177	LDFLAGS="$LDFLAGS -fstack-protector-all"
1178	AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])
1179	fi
1180	fi
1181	fi
1182	])
1183
1184	AC_DEFUN([GCC_STACK_PROTECT_CXX],[
1185	AC_LANG_ASSERT(C++)
1186	if test "X$CXX" != "X"; then
1187	AC_CACHE_CHECK([whether ${CXX} accepts -fstack-protector],
1188	ssp_cv_cxx,
1189	[ssp_old_cxxflags="$CXXFLAGS"
1190	CXXFLAGS="$CXXFLAGS -fstack-protector"
1191	AC_TRY_COMPILE(,, ssp_cv_cxx=yes, ssp_cv_cxx=no)
1192	CXXFLAGS="$ssp_old_cxxflags"
1193	])
1194	if test $ssp_cv_cxx = yes; then
1195	CXXFLAGS="$CXXFLAGS -fstack-protector"
1196	AC_DEFINE([ENABLE_SSP_CXX], 1, [Define if SSP C++ support is enabled.])
1197	fi
1198	fi
1199	])
1200
1201	AC_DEFUN([GCC_STACK_PROTECTOR],[
1202	GCC_STACK_PROTECT_LIB
1203
1204	AC_LANG_PUSH([C])
1205	GCC_STACK_PROTECT_CC
1206	AC_LANG_POP([C])
1207
1208	AC_LANG_PUSH([C++])
1209	GCC_STACK_PROTECT_CXX
1210	AC_LANG_POP([C++])
1211	])
1212
1213
1214	AC_DEFUN([GCC_PIE_CC],[
1215	AC_LANG_ASSERT(C)
1216	if test "X$CC" != "X"; then
1217	AC_CACHE_CHECK([whether ${CC} accepts -pie -fPIE],
1218	pie_cv_cc,
1219	[pie_old_cflags="$CFLAGS"
1220	CFLAGS="$CFLAGS -pie -fPIE"
1221	AC_TRY_COMPILE(,, pie_cv_cc=yes, pie_cv_cc=no)
1222	CFLAGS="$pie_old_cflags"
1223	])
1224	if test $pie_cv_cc = yes; then
1225	case "$host_os" in
1226	cygwin)
1227	;;
1228	*)
1229	PIE_CFLAGS="-fPIE"
1230	PIE_LDFLAGS="-pie"
1231	;;
1232	esac
1233	fi
1234	fi
1235	])
1236
1237	AC_DEFUN([GCC_STACK_CHECK_CC],[
1238	AC_LANG_ASSERT(C)
1239	if test "X$CC" != "X"; then
1240	AC_CACHE_CHECK([whether ${CC} accepts -fstack-check],
1241	stackcheck_cv_cc,
1242	[stackcheck_old_cflags="$CFLAGS"
1243	CFLAGS="$CFLAGS -fstack-check"
1244	AC_TRY_COMPILE(,, stackcheck_cv_cc=yes, stackcheck_cv_cc=no)
1245	CFLAGS="$stackcheck_old_cflags"
1246	])
1247	if test $stackcheck_cv_cc = yes; then
1248	CFLAGS="$CFLAGS -fstack-check"
1249	fi
1250	fi
1251	])
1252
1253	AC_DEFUN([GCC_FLAG_CHECK],[
1254	AC_LANG_ASSERT(C)
1255	if test "X$CC" != "X"; then
1256	AC_MSG_CHECKING([whether ${CC} accepts $1])
1257	saved_cflags="$CFLAGS"
1258	CFLAGS="$CFLAGS -Werror $1"
1259	AC_TRY_COMPILE(,, flag_check_cv=yes, flag_check_cv=no)
1260	CFLAGS="$saved_cflags"
1261
1262	if test $flag_check_cv = yes; then
1263	CFLAGS="$CFLAGS $1"
1264	AC_MSG_RESULT([yes])
1265	else
1266	AC_MSG_RESULT([no])
1267	fi
1268	fi
1269	])
1270
1271	AC_DEFUN([SAMHAIN_POSIX],[
1272	AC_MSG_CHECKING([whether _POSIX_SOURCE is necessary])
1273	AC_TRY_COMPILE([#include <stdio.h>
1274	void fileno(int);int fdopen(int, char *); ],,
1275	[
1276	AC_MSG_RESULT(yes)
1277	AC_DEFINE([_POSIX_SOURCE],1,[Define if POSIX functions are required])
1278	],
1279	[AC_MSG_RESULT(no)])
1280	])dnl
1281
1282	dnl checks for a known 64 bit programming environment
1283	dnl AC_RUN_IFELSE(PROGRAM,
1284	dnl [ACTION-IF-TRUE], [ACTION-IF-FALSE],
1285	dnl [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
1286	dnl
1287	AC_DEFUN([SAMHAIN_PRG_ENV],[
1288	AC_MSG_CHECKING([for a known 64 bit programming environment])
1289	# Compile and run a program that determines the programming environment
1290	AC_RUN_IFELSE([
1291	AC_LANG_SOURCE([[
1292	#include <stdio.h>
1293	int main(int argc,char **argv)
1294	{
1295	if (argc > 1) {
1296	#if defined(__arch64__)
1297	printf("__arch64__\n");
1298	#elif defined(__ia64__)
1299	printf("__ia64__\n");
1300	#elif defined(__x86_64__)
1301	printf("__x86_64__\n");
1302	#elif defined(__LP64__)
1303	printf("__LP64__\n");
1304	#elif defined(__64BIT__)
1305	printf("__64BIT__\n");
1306	#elif defined(_LP64)
1307	printf("_LP64\n");
1308	#elif defined(_M_IA64)
1309	printf("_M_IA64\n");
1310	#elif defined(_MIPS_SZLONG) && (_MIPS_SZLONG == 64)
1311	printf("_MIPS_64\n");
1312	#else
1313	choke me
1314	#endif
1315	}
1316	return 0;
1317	}
1318	]])
1319	],[
1320	# Program compiled and ran, so get version by adding argument.
1321	samhain_prg_ENV=`./conftest$ac_exeext x`
1322	samhain_64=yes
1323	AC_MSG_RESULT([$samhain_prg_ENV])
1324	],[
1325	AC_MSG_RESULT([none])
1326	],[
1327	AC_MSG_RESULT([none])
1328	])
1329	])dnl
1330
1331	AC_DEFUN([SAMHAIN_X86_64],[
1332	AC_MSG_CHECKING([for x86_64])
1333	AC_TRY_RUN([
1334	int main() {
1335	__asm__ volatile (
1336	"movq %rax, %rax"
1337	);
1338	return 0;
1339	}
1340	],
1341	[
1342	AC_MSG_RESULT(yes)
1343	samhain_64=yes
1344	tiger_src=sh_tiger1_64.c
1345	samhain_64_asm=yes
1346	],
1347	[
1348	AC_MSG_RESULT([no])
1349	],[
1350	AC_MSG_RESULT([no])
1351	])
1352	])dnl
1353
1354
1355	AC_DEFUN([SAMHAIN_64],[
1356	samhain_64=no
1357	tiger_src=sh_tiger1.c
1358	samhain_64_asm=no
1359	#
1360	# if sizeof(unsigned long) = 4, try compiler macros for 64bit
1361	#
1362	if test "x$ac_cv_sizeof_unsigned_long" = x4; then
1363	if test "x$ac_cv_sizeof_unsigned_long_long" = x8; then
1364	SAMHAIN_PRG_ENV
1365	if test "x$samhain_64" = xyes; then
1366	tiger_src=sh_tiger1_64.c
1367	fi
1368	#
1369	# if GCC and __i386__, use precompiled assembler
1370	#
1371	if test "x$GCC" = xyes; then
1372	AC_MSG_CHECKING([for non-apple non-cygwin i386])
1373	samhain_i386=no
1374	$CC -E -dM - < /dev/null \| egrep '__i386__' >/dev/null 2>&1
1375	if test $? = 0; then
1376	case "$host_os" in
1377	linux)
1378	# apples gcc does not understand the assembly we provide
1379	$CC -E -dM - < /dev/null \| egrep '(__sun__\|__APPLE__\|__CYGWIN__)' >/dev/null 2>&1 \|\| samhain_i386=yes
1380	;;
1381	*)
1382	;;
1383	esac
1384	fi
1385	AC_MSG_RESULT([$samhain_i386])
1386	if test "x$samhain_i386" = xyes; then
1387	GCC_PIE_CC
1388	if test $pie_cv_cc = yes; then
1389	tiger_src=sh_tiger1.s
1390	AC_DEFINE([TIGER_32_BIT_S],1,[Define to use tiger 32 bit i386 assembler])
1391	fi
1392	fi
1393	fi
1394	#
1395	#
1396	#
1397	else
1398	samhain_64=no
1399	tiger_src=sh_tiger1.c
1400	fi
1401	else
1402	#
1403	# sizeof(unsigned long) = 8
1404	#
1405	tiger_src=sh_tiger1_64.c
1406	samhain_64=yes
1407	#
1408	# check for x86_64 (enables assembly optimizations)
1409	#
1410	if test "x$GCC" = xyes; then
1411	$CC -E -dM - < /dev/null \| egrep '__clang__' >/dev/null 2>&1
1412	if ! test $? = 0; then
1413	case "$host_os" in
1414	linux)
1415	SAMHAIN_X86_64
1416	;;
1417	bsd)
1418	SAMHAIN_X86_64
1419	;;
1420	*)
1421	SAMHAIN_X86_64
1422	;;
1423	esac
1424	fi
1425	fi
1426	fi
1427	if test "x$samhain_64" = xyes; then
1428	AC_DEFINE([TIGER_64_BIT],1,[Define to use tiger 64 bit implementation])
1429	fi
1430	AC_MSG_CHECKING([for 64 bit environment])
1431	AC_MSG_RESULT([$samhain_64])
1432	AC_MSG_CHECKING([for tiger source to use])
1433	AC_MSG_RESULT([$tiger_src])
1434	AC_SUBST(tiger_src)
1435	])dnl
1436
1437	AC_DEFUN([sh_CHECK_POSIX_ACL],
1438	[
1439	AC_CHECK_HEADERS(sys/acl.h)
1440	if test $ac_cv_header_sys_acl_h = yes; then
1441
1442	AC_CHECK_LIB([acl], [acl_get_file], sh_lacl=yes, sh_lacl=no)
1443	if test x"$sh_lacl" = xyes; then
1444	LIBACL=-lacl
1445	else
1446	LIBACL=
1447	fi
1448
1449	OLDLIBS="$LIBS"
1450	LIBS="$LIBS $LIBACL"
1451	AC_CHECK_FUNCS([acl_free acl_get_file acl_get_fd],
1452	[sh_facl=yes],[sh_facl=no])
1453	LIBS="$OLDLIBS"
1454
1455	if test x"$sh_facl" = xyes; then
1456	AC_DEFINE(USE_ACL, 1, [Define if you want ACL support.])
1457	LIBS="$LIBS $LIBACL"
1458	fi
1459	fi
1460	])
1461
1462	AC_DEFUN([sh_CHECK_XATTR],
1463	[
1464	AC_CHECK_HEADERS(attr/xattr.h)
1465	if test $ac_cv_header_attr_xattr_h = yes; then
1466
1467	AC_CHECK_LIB([attr], [getxattr], sh_lattr=yes, sh_lattr=no)
1468	if test x"$sh_lattr" = xyes; then
1469	LIBATTR=-lattr
1470	else
1471	LIBATTR=
1472	fi
1473
1474	OLDLIBS="$LIBS"
1475	LIBS="$LIBS $LIBATTR"
1476	AC_CHECK_FUNCS([getxattr lgetxattr fgetxattr],
1477	[sh_fattr=yes],[sh_fattr=no])
1478	LIBS="$OLDLIBS"
1479
1480	if test x"$sh_fattr" = xyes; then
1481	AC_DEFINE(USE_XATTR, 1, [Define if you want extended attributes support.])
1482	LIBS="$LIBS $LIBATTR"
1483	fi
1484	fi
1485	])
1486
1487	dnl Autoconf macros for libprelude
1488	dnl $id$
1489
1490	# Modified for LIBPRELUDE -- Yoann Vandoorselaere
1491	# Modified for LIBGNUTLS -- nmav
1492	# Configure paths for LIBGCRYPT
1493	# Shamelessly stolen from the one of XDELTA by Owen Taylor
1494	# Werner Koch 99-12-09
1495
1496	dnl AM_PATH_LIBPRELUDE([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
1497	dnl Test for libprelude, and define LIBPRELUDE_PREFIX, LIBPRELUDE_CFLAGS, LIBPRELUDE_PTHREAD_CFLAGS,
1498	dnl LIBPRELUDE_LDFLAGS, and LIBPRELUDE_LIBS
1499	dnl
1500	AC_DEFUN([AM_PATH_LIBPRELUDE],
1501	[dnl
1502	dnl Get the cflags and libraries from the libprelude-config script
1503	dnl
1504	dnl AC_ARG_WITH(libprelude-prefix,
1505	dnl [ --with-libprelude-prefix=PFX Prefix where libprelude is installed (optional)],
1506	dnl libprelude_config_prefix="$withval", libprelude_config_prefix="")
1507	dnl
1508	dnl if test x$libprelude_config_prefix != x ; then
1509	dnl if test x${LIBPRELUDE_CONFIG+set} != xset ; then
1510	dnl LIBPRELUDE_CONFIG=$libprelude_config_prefix/bin/libprelude-config
1511	dnl fi
1512	dnl fi
1513	dnl
1514	dnl AC_PATH_PROG(LIBPRELUDE_CONFIG, libprelude-config, no)
1515	min_libprelude_version=ifelse([$1], ,0.1.0,$1)
1516	AC_MSG_CHECKING(for libprelude - version >= $min_libprelude_version)
1517	no_libprelude=""
1518	if test "$LIBPRELUDE_CONFIG" = "no" ; then
1519	no_libprelude=yes
1520	else
1521	LIBPRELUDE_CFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --cflags`
1522	LIBPRELUDE_PTHREAD_CFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --pthread-cflags`
1523	LIBPRELUDE_LDFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --ldflags`
1524	LIBPRELUDE_LIBS=`$LIBPRELUDE_CONFIG $libprelude_config_args --libs`
1525	LIBPRELUDE_PREFIX=`$LIBPRELUDE_CONFIG $libprelude_config_args --prefix`
1526	LIBPRELUDE_CONFIG_PREFIX=`$LIBPRELUDE_CONFIG $libprelude_config_args --config-prefix`
1527	libprelude_config_version=`$LIBPRELUDE_CONFIG $libprelude_config_args --version`
1528
1529
1530	ac_save_CFLAGS="$CFLAGS"
1531	ac_save_LDFLAGS="$LDFLAGS"
1532	ac_save_LIBS="$LIBS"
1533	CFLAGS="$CFLAGS $LIBPRELUDE_CFLAGS"
1534	LDFLAGS="$LDFLAGS $LIBPRELUDE_LDFLAGS"
1535	LIBS="$LIBS $LIBPRELUDE_LIBS"
1536	dnl
1537	dnl Now check if the installed libprelude is sufficiently new. Also sanity
1538	dnl checks the results of libprelude-config to some extent
1539	dnl
1540	rm -f conf.libpreludetest
1541	AC_TRY_RUN([
1542	#include <stdio.h>
1543	#include <stdlib.h>
1544	#include <string.h>
1545	#include <libprelude/prelude.h>
1546
1547	int
1548	main ()
1549	{
1550	system ("touch conf.libpreludetest");
1551
1552	if( strcmp( prelude_check_version(NULL), "$libprelude_config_version" ) )
1553	{
1554	printf("\n*** 'libprelude-config --version' returned %s, but LIBPRELUDE (%s)\n",
1555	"$libprelude_config_version", prelude_check_version(NULL) );
1556	printf("*** was found! If libprelude-config was correct, then it is best\n");
1557	printf("*** to remove the old version of LIBPRELUDE. You may also be able to fix the error\n");
1558	printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
1559	printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
1560	printf("*** required on your system.\n");
1561	printf("*** If libprelude-config was wrong, set the environment variable LIBPRELUDE_CONFIG\n");
1562	printf("*** to point to the correct copy of libprelude-config, and remove the file config.cache\n");
1563	printf("*** before re-running configure\n");
1564	}
1565	else if ( strcmp(prelude_check_version(NULL), LIBPRELUDE_VERSION ) )
1566	{
1567	printf("\n*** LIBPRELUDE header file (version %s) does not match\n", LIBPRELUDE_VERSION);
1568	printf("*** library (version %s)\n", prelude_check_version(NULL) );
1569	}
1570	else
1571	{
1572	if ( prelude_check_version( "$min_libprelude_version" ) )
1573	{
1574	return 0;
1575	}
1576	else
1577	{
1578	printf("no\n*** An old version of LIBPRELUDE (%s) was found.\n",
1579	prelude_check_version(NULL) );
1580	printf("*** You need a version of LIBPRELUDE newer than %s. The latest version of\n",
1581	"$min_libprelude_version" );
1582	printf("*** LIBPRELUDE is always available from http://www.prelude-ids.org/download/releases.\n");
1583	printf("*** \n");
1584	printf("*** If you have already installed a sufficiently new version, this error\n");
1585	printf("*** probably means that the wrong copy of the libprelude-config shell script is\n");
1586	printf("*** being found. The easiest way to fix this is to remove the old version\n");
1587	printf("*** of LIBPRELUDE, but you can also set the LIBPRELUDE_CONFIG environment to point to the\n");
1588	printf("*** correct copy of libprelude-config. (In this case, you will have to\n");
1589	printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
1590	printf("*** so that the correct libraries are found at run-time))\n");
1591	}
1592	}
1593	return 1;
1594	}
1595	],, no_libprelude=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
1596	CFLAGS="$ac_save_CFLAGS"
1597	LIBS="$ac_save_LIBS"
1598	LDFLAGS="$ac_save_LDFLAGS"
1599	fi
1600
1601	if test "x$no_libprelude" = x ; then
1602	AC_MSG_RESULT(yes)
1603	ifelse([$2], , :, [$2])
1604	else
1605	if test -f conf.libpreludetest ; then
1606	:
1607	else
1608	AC_MSG_RESULT(no)
1609	fi
1610	if test "$LIBPRELUDE_CONFIG" = "no" ; then
1611	echo "*** The libprelude-config script installed by LIBPRELUDE could not be found"
1612	echo "*** If LIBPRELUDE was installed in PREFIX, make sure PREFIX/bin is in"
1613	echo "*** your path, or set the LIBPRELUDE_CONFIG environment variable to the"
1614	echo "*** full path to libprelude-config."
1615	else
1616	if test -f conf.libpreludetest ; then
1617	:
1618	else
1619	echo "*** Could not run libprelude test program, checking why..."
1620	CFLAGS="$CFLAGS $LIBPRELUDE_CFLAGS"
1621	LDFLAGS="$LDFLAGS $LIBPRELUDE_LDFLAGS"
1622	LIBS="$LIBS $LIBPRELUDE_LIBS"
1623	AC_TRY_LINK([
1624	#include <stdio.h>
1625	#include <stdlib.h>
1626	#include <string.h>
1627	#include <libprelude/prelude.h>
1628	], [ return !!prelude_check_version(NULL); ],
1629	[ echo "*** The test program compiled, but did not run. This usually means"
1630	echo "*** that the run-time linker is not finding LIBPRELUDE or finding the wrong"
1631	echo "*** version of LIBPRELUDE. If it is not finding LIBPRELUDE, you'll need to set your"
1632	echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
1633	echo "*** to the installed location Also, make sure you have run ldconfig if that"
1634	echo "*** is required on your system"
1635	echo "***"
1636	echo "*** If you have an old version installed, it is best to remove it, although"
1637	echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
1638	echo "***" ],
1639	[ echo "*** The test program failed to compile or link. See the file config.log for the"
1640	echo "*** exact error that occured. This usually means LIBPRELUDE was incorrectly installed"
1641	echo "*** or that you have moved LIBPRELUDE since it was installed. In the latter case, you"
1642	echo "*** may want to edit the libprelude-config script: $LIBPRELUDE_CONFIG" ])
1643	CFLAGS="$ac_save_CFLAGS"
1644	LDFLAGS="$ac_save_LDFLAGS"
1645	LIBS="$ac_save_LIBS"
1646	fi
1647	fi
1648	LIBPRELUDE_CFLAGS=""
1649	LIBPRELUDE_LDFLAGS=""
1650	LIBPRELUDE_LIBS=""
1651	ifelse([$3], , :, [$3])
1652	fi
1653	rm -f conf.libpreludetest
1654	AC_SUBST(LIBPRELUDE_CFLAGS)
1655	AC_SUBST(LIBPRELUDE_PTHREAD_CFLAGS)
1656	AC_SUBST(LIBPRELUDE_LDFLAGS)
1657	AC_SUBST(LIBPRELUDE_LIBS)
1658	AC_SUBST(LIBPRELUDE_PREFIX)
1659	AC_SUBST(LIBPRELUDE_CONFIG_PREFIX)
1660	])
1661
1662
1663	##### http://autoconf-archive.cryp.to/acx_pthread.html
1664	#
1665	# SYNOPSIS
1666	#
1667	# ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
1668	#
1669	# DESCRIPTION
1670	#
1671	# This macro figures out how to build C programs using POSIX threads.
1672	# It sets the PTHREAD_LIBS output variable to the threads library and
1673	# linker flags, and the PTHREAD_CFLAGS output variable to any special
1674	# C compiler flags that are needed. (The user can also force certain
1675	# compiler flags/libs to be tested by setting these environment
1676	# variables.)
1677	#
1678	# Also sets PTHREAD_CC to any special C compiler that is needed for
1679	# multi-threaded programs (defaults to the value of CC otherwise).
1680	# (This is necessary on AIX to use the special cc_r compiler alias.)
1681	#
1682	# NOTE: You are assumed to not only compile your program with these
1683	# flags, but also link it with them as well. e.g. you should link
1684	# with $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS
1685	# $LIBS
1686	#
1687	# If you are only building threads programs, you may wish to use
1688	# these variables in your default LIBS, CFLAGS, and CC:
1689	#
1690	# LIBS="$PTHREAD_LIBS $LIBS"
1691	# CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1692	# CC="$PTHREAD_CC"
1693	#
1694	# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute
1695	# constant has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to
1696	# that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
1697	#
1698	# ACTION-IF-FOUND is a list of shell commands to run if a threads
1699	# library is found, and ACTION-IF-NOT-FOUND is a list of commands to
1700	# run it if it is not found. If ACTION-IF-FOUND is not specified, the
1701	# default action will define HAVE_PTHREAD.
1702	#
1703	# Please let the authors know if this macro fails on any platform, or
1704	# if you have any other suggestions or comments. This macro was based
1705	# on work by SGJ on autoconf scripts for FFTW (http://www.fftw.org/)
1706	# (with help from M. Frigo), as well as ac_pthread and hb_pthread
1707	# macros posted by Alejandro Forero Cuervo to the autoconf macro
1708	# repository. We are also grateful for the helpful feedback of
1709	# numerous users.
1710	#
1711	# LAST MODIFICATION
1712	#
1713	# 2007-07-29
1714	#
1715	# COPYLEFT
1716	#
1717	# Copyright (c) 2007 Steven G. Johnson <stevenj@alum.mit.edu>
1718	#
1719	# This program is free software: you can redistribute it and/or
1720	# modify it under the terms of the GNU General Public License as
1721	# published by the Free Software Foundation, either version 3 of the
1722	# License, or (at your option) any later version.
1723	#
1724	# This program is distributed in the hope that it will be useful, but
1725	# WITHOUT ANY WARRANTY; without even the implied warranty of
1726	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1727	# General Public License for more details.
1728	#
1729	# You should have received a copy of the GNU General Public License
1730	# along with this program. If not, see
1731	# <http://www.gnu.org/licenses/>.
1732	#
1733	# As a special exception, the respective Autoconf Macro's copyright
1734	# owner gives unlimited permission to copy, distribute and modify the
1735	# configure scripts that are the output of Autoconf when processing
1736	# the Macro. You need not follow the terms of the GNU General Public
1737	# License when using or distributing such scripts, even though
1738	# portions of the text of the Macro appear in them. The GNU General
1739	# Public License (GPL) does govern all other use of the material that
1740	# constitutes the Autoconf Macro.
1741	#
1742	# This special exception to the GPL applies to versions of the
1743	# Autoconf Macro released by the Autoconf Macro Archive. When you
1744	# make and distribute a modified version of the Autoconf Macro, you
1745	# may extend this special exception to the GPL to apply to your
1746	# modified version as well.
1747
1748	AC_DEFUN([ACX_PTHREAD], [
1749	AC_REQUIRE([AC_CANONICAL_HOST])
1750	AC_LANG_SAVE
1751	AC_LANG_C
1752	acx_pthread_ok=no
1753
1754	# We used to check for pthread.h first, but this fails if pthread.h
1755	# requires special compiler flags (e.g. on True64 or Sequent).
1756	# It gets checked for in the link test anyway.
1757
1758	# First of all, check if the user has set any of the PTHREAD_LIBS,
1759	# etcetera environment variables, and if threads linking works using
1760	# them:
1761	if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
1762	save_CFLAGS="$CFLAGS"
1763	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1764	save_LIBS="$LIBS"
1765	LIBS="$PTHREAD_LIBS $LIBS"
1766	AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
1767	AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
1768	AC_MSG_RESULT($acx_pthread_ok)
1769	if test x"$acx_pthread_ok" = xno; then
1770	PTHREAD_LIBS=""
1771	PTHREAD_CFLAGS=""
1772	fi
1773	LIBS="$save_LIBS"
1774	CFLAGS="$save_CFLAGS"
1775	fi
1776
1777	# We must check for the threads library under a number of different
1778	# names; the ordering is very important because some systems
1779	# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
1780	# libraries is broken (non-POSIX).
1781
1782	# Create a list of thread flags to try. Items starting with a "-" are
1783	# C compiler flags, and other items are library names, except for "none"
1784	# which indicates that we try without any flags at all, and "pthread-config"
1785	# which is a program returning the flags for the Pth emulation library.
1786
1787	acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
1788
1789	# The ordering is (sometimes) important. Some notes on the
1790	# individual items follow:
1791
1792	# pthreads: AIX (must check this before -lpthread)
1793	# none: in case threads are in libc; should be tried before -Kthread and
1794	# other compiler flags to prevent continual compiler warnings
1795	# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
1796	# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
1797	# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
1798	# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
1799	# -pthreads: Solaris/gcc
1800	# -mthreads: Mingw32/gcc, Lynx/gcc
1801	# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
1802	# doesn't hurt to check since this sometimes defines pthreads too;
1803	# also defines -D_REENTRANT)
1804	# ... -mt is also the pthreads flag for HP/aCC
1805	# pthread: Linux, etcetera
1806	# --thread-safe: KAI C++
1807	# pthread-config: use pthread-config program (for GNU Pth library)
1808
1809	case "${host_cpu}-${host_os}" in
1810	solaris)
1811
1812	# On Solaris (at least, for some versions), libc contains stubbed
1813	# (non-functional) versions of the pthreads routines, so link-based
1814	# tests will erroneously succeed. (We need to link with -pthreads/-mt/
1815	# -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
1816	# a function called by this macro, so we could check for that, but
1817	# who knows whether they'll stub that too in a future libc.) So,
1818	# we'll just look for -pthreads and -lpthread first:
1819
1820	acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
1821	;;
1822	esac
1823
1824	if test x"$acx_pthread_ok" = xno; then
1825	for flag in $acx_pthread_flags; do
1826
1827	case $flag in
1828	none)
1829	AC_MSG_CHECKING([whether pthreads work without any flags])
1830	;;
1831
1832	-pthread)
1833	AC_MSG_CHECKING([whether pthreads work with $flag])
1834	PTHREAD_CFLAGS="$flag"
1835	;;
1836
1837	-*)
1838	AC_MSG_CHECKING([whether pthreads work with $flag])
1839	PTHREAD_CFLAGS="$flag"
1840	;;
1841
1842	pthread-config)
1843	AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
1844	if test x"$acx_pthread_config" = xno; then continue; fi
1845	PTHREAD_CFLAGS="`pthread-config --cflags`"
1846	PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
1847	;;
1848
1849	*)
1850	AC_MSG_CHECKING([for the pthreads library -l$flag])
1851	PTHREAD_LIBS="-l$flag"
1852	;;
1853	esac
1854
1855	save_LIBS="$LIBS"
1856	save_CFLAGS="$CFLAGS"
1857	save_LDFLAGS="$LDFLAGS"
1858	LIBS="$PTHREAD_LIBS $LIBS"
1859	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1860	LDFLAGS="$LDFLAGS $PTHREAD_CFLAGS"
1861
1862	# Check for various functions. We must include pthread.h,
1863	# since some functions may be macros. (On the Sequent, we
1864	# need a special flag -Kthread to make this header compile.)
1865	# We check for pthread_join because it is in -lpthread on IRIX
1866	# while pthread_create is in libc. We check for pthread_attr_init
1867	# due to DEC craziness with -lpthreads. We check for
1868	# pthread_cleanup_push because it is one of the few pthread
1869	# functions on Solaris that doesn't have a non-functional libc stub.
1870	# We try pthread_create on general principles.
1871	AC_TRY_LINK([#include <pthread.h>],
1872	[pthread_t th; pthread_join(th, 0);
1873	pthread_attr_init(0); pthread_cleanup_push(0, 0);
1874	pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
1875	[acx_pthread_ok=yes])
1876
1877	LIBS="$save_LIBS"
1878	LDFLAGS="$save_LDFLAGS"
1879	CFLAGS="$save_CFLAGS"
1880
1881	AC_MSG_RESULT($acx_pthread_ok)
1882	if test "x$acx_pthread_ok" = xyes; then
1883	break;
1884	fi
1885
1886	PTHREAD_LIBS=""
1887	PTHREAD_CFLAGS=""
1888	done
1889	fi
1890
1891	# Various other checks:
1892	if test "x$acx_pthread_ok" = xyes; then
1893	save_LIBS="$LIBS"
1894	LIBS="$PTHREAD_LIBS $LIBS"
1895	save_CFLAGS="$CFLAGS"
1896	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1897
1898	# Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
1899	AC_MSG_CHECKING([for joinable pthread attribute])
1900	attr_name=unknown
1901	for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
1902	AC_TRY_LINK([#include <pthread.h>], [int attr=$attr; return attr;],
1903	[attr_name=$attr; break])
1904	done
1905	AC_MSG_RESULT($attr_name)
1906	if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
1907	AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
1908	[Define to necessary symbol if this constant
1909	uses a non-standard name on your system.])
1910	fi
1911
1912	# Solaris lossage: default is obsolete semantics for getpwnam_r,
1913	# getpwuid_r, getgrgid_r, unless _POSIX_PTHREAD_SEMANTICS is defined
1914	AC_MSG_CHECKING([if more special flags are required for pthreads])
1915	flag=no
1916	case "${host_cpu}-${host_os}" in
1917	-aix \| -freebsd \| -darwin) flag="-D_THREAD_SAFE";;
1918	-osf \| -hpux) flag="-D_REENTRANT";;
1919	solaris) flag="-D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT";;
1920	esac
1921	AC_MSG_RESULT(${flag})
1922	if test "x$flag" != xno; then
1923	PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
1924	fi
1925
1926	# Detect PTHREAD_MUTEX_RECURSIVE
1927	AC_MSG_CHECKING([for recursive mutexes])
1928	mutex_recursive=no
1929	AC_TRY_LINK([
1930	#define _XOPEN_SOURCE 500
1931	#include <pthread.h>], [
1932	pthread_mutexattr_t mta;
1933	pthread_mutexattr_settype(&mta, PTHREAD_MUTEX_RECURSIVE);
1934	return 0;],[mutex_recursive=yes])
1935	if test "x$mutex_recursive" = "xyes"
1936	then
1937	AC_DEFINE(HAVE_PTHREAD_MUTEX_RECURSIVE,1,[Define if you have recursive mutexes.])
1938	fi
1939	AC_MSG_RESULT($mutex_recursive)
1940
1941	LIBS="$save_LIBS"
1942	CFLAGS="$save_CFLAGS"
1943
1944	# More AIX lossage: must compile with xlc_r or cc_r
1945	if test x"$GCC" != xyes; then
1946	AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC})
1947	else
1948	PTHREAD_CC=$CC
1949	fi
1950	else
1951	PTHREAD_CC="$CC"
1952	fi
1953
1954	if test x"$acx_pthread_ok" = xyes; then
1955	PTHREAD_CFLAGS="${PTHREAD_CFLAGS} -DUSE_MALLOC_LOCK=1"
1956	fi
1957
1958	AC_SUBST(PTHREAD_LIBS)
1959	AC_SUBST(PTHREAD_CFLAGS)
1960	AC_SUBST(PTHREAD_LDFLAGS)
1961	AC_SUBST(PTHREAD_CC)
1962
1963	# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
1964	if test x"$acx_pthread_ok" = xyes; then
1965	ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
1966	:
1967	else
1968	acx_pthread_ok=no
1969	$2
1970	fi
1971	AC_LANG_RESTORE
1972	])dnl ACX_PTHREAD
1973
1974
1975
1976
1977	dnl Copyright Â© 2004 Loic Dachary <loic@senga.org>
1978	dnl
1979	dnl This program is free software; you can redistribute it and/or modify
1980	dnl it under the terms of the GNU General Public License as published by
1981	dnl the Free Software Foundation; either version 2 of the License, or (at
1982	dnl your option) any later version.
1983	dnl
1984	dnl Use ZLIB_HOME instead of option
1985
1986	AC_DEFUN([CHECK_ZLIB],[
1987
1988	if test "x${ZLIB_HOME}" = "x"; then
1989	ZLIB_HOME=/usr/local
1990	if test ! -f "${ZLIB_HOME}/include/zlib.h"
1991	then
1992	ZLIB_HOME=/usr
1993	fi
1994	fi
1995
1996	zlib_found=no
1997
1998	ZLIB_OLD_LDFLAGS=$LDFLAGS
1999	ZLIB_OLD_CPPFLAGS=$LDFLAGS
2000	if test "x${ZLIB_HOME}" = "x/usr"; then
2001	:
2002	else
2003	LDFLAGS="$LDFLAGS -L${ZLIB_HOME}/lib"
2004	CPPFLAGS="$CPPFLAGS -I${ZLIB_HOME}/include"
2005	fi
2006	AC_LANG_SAVE
2007	AC_LANG_C
2008	AC_CHECK_LIB(z, inflateEnd, [zlib_cv_libz=yes], [zlib_cv_libz=no])
2009	AC_CHECK_HEADER(zlib.h, [zlib_cv_zlib_h=yes], [zlib_cv_zlib_h=no])
2010	AC_LANG_RESTORE
2011	if test "$zlib_cv_libz" = "yes" -a "$zlib_cv_zlib_h" = "yes"
2012	then
2013	#
2014	# If both library and header were found, use them
2015	#
2016	AC_CHECK_LIB(z, inflateEnd)
2017	AC_MSG_CHECKING([zlib in ${ZLIB_HOME}])
2018	AC_MSG_RESULT(ok)
2019	AC_CHECK_FUNCS([compressBound])
2020	zlib_found=yes
2021	else
2022	#
2023	# If either header or library was not found, revert and bomb
2024	#
2025	AC_MSG_CHECKING(zlib in ${ZLIB_HOME})
2026	LDFLAGS="$ZLIB_OLD_LDFLAGS"
2027	CPPFLAGS="$ZLIB_OLD_CPPFLAGS"
2028	AC_MSG_RESULT(failed)
2029	AC_MSG_WARN([zlib not found in ZLIB_HOME, /usr/local, or /usr])
2030	fi
2031
2032	])
2033
2034	# SH_PROG_LD
2035	# ----------
2036	# find the pathname to the GNU or non-GNU linker
2037	AC_DEFUN([SH_PROG_LD],
2038	[
2039	AC_REQUIRE([AC_PROG_CC])dnl
2040	AC_REQUIRE([AC_CANONICAL_HOST])dnl
2041	AC_REQUIRE([AC_CANONICAL_BUILD])dnl
2042	ac_prog=ld
2043	if test "$GCC" = yes; then
2044	# Check if gcc -print-prog-name=ld gives a path.
2045	AC_MSG_CHECKING([for ld used by $CC])
2046	case $host in
2047	--mingw*)
2048	# gcc leaves a trailing carriage return which upsets mingw
2049	ac_prog=`($CC -print-prog-name=ld) 2>&5 \| tr -d '\015'` ;;
2050	*)
2051	ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
2052	esac
2053	case $ac_prog in
2054	# Accept absolute paths.
2055	[[\\/]]* \| ?:[[\\/]]*)
2056	re_direlt='/[[^/]][[^/]]*/\.\./'
2057	# Canonicalize the pathname of ld
2058	ac_prog=`echo $ac_prog\| sed 's%\\\\%/%g'`
2059	while echo $ac_prog \| grep "$re_direlt" > /dev/null 2>&1; do
2060	ac_prog=`echo $ac_prog\| sed "s%$re_direlt%/%"`
2061	done
2062	test -z "$LD" && LD="$ac_prog"
2063	;;
2064	"")
2065	# If it fails, then pretend we aren't using GCC.
2066	ac_prog=ld
2067	;;
2068	*)
2069	# If it is relative, then search for the first ld in PATH.
2070	with_gnu_ld=unknown
2071	;;
2072	esac
2073	else
2074	AC_MSG_CHECKING([for ld])
2075	fi
2076	AC_CACHE_VAL(lt_cv_path_LD,
2077	[if test -z "$LD"; then
2078	lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
2079	for ac_dir in $PATH; do
2080	IFS="$lt_save_ifs"
2081	test -z "$ac_dir" && ac_dir=.
2082	if test -f "$ac_dir/$ac_prog" \|\| test -f "$ac_dir/$ac_prog$ac_exeext"; then
2083	lt_cv_path_LD="$ac_dir/$ac_prog"
2084	# Check to see if the program is GNU ld. I'd rather use --version,
2085	# but apparently some variants of GNU ld only accept -v.
2086	# Break only if it was the GNU/non-GNU ld that we prefer.
2087	case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
2088	GNU \| 'with BFD')
2089	with_gnu_ld=yes
2090	;;
2091	*)
2092	with_gnu_ld=no
2093	;;
2094	esac
2095	fi
2096	done
2097	IFS="$lt_save_ifs"
2098	else
2099	lt_cv_path_LD="$LD" # Let the user override the test with a path.
2100	fi])
2101	LD="$lt_cv_path_LD"
2102	if test -n "$LD"; then
2103	AC_MSG_RESULT($LD)
2104	else
2105	AC_MSG_RESULT(no)
2106	fi
2107	test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
2108	AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
2109	[# I'd rather use --version here, but apparently some GNU lds only accept -v.
2110	case `$LD -v 2>&1 </dev/null` in
2111	GNU \| 'with BFD')
2112	lt_cv_prog_gnu_ld=yes
2113	;;
2114	*)
2115	lt_cv_prog_gnu_ld=no
2116	;;
2117	esac])
2118	with_gnu_ld=$lt_cv_prog_gnu_ld
2119	])# AC_PROG_LD_GNU
2120
2121	# SH_STRFTIME_Z
2122	# -------------
2123	# check whether strftime supports %z
2124	AC_DEFUN([SH_STRFTIME_Z],
2125	[
2126	AC_MSG_CHECKING([whether strftime supports %z])
2127	AC_TRY_RUN([
2128	#include <time.h>
2129	#include <string.h>
2130	int main()
2131	{
2132	struct tm tm;
2133	char tt[64];
2134	memset(&tm, 0, sizeof(tm));
2135	strftime(tt, sizeof(tt), "%z", &tm);
2136
2137	if (strlen(tt) != 5) return 1;
2138	return 0;
2139	}
2140	],
2141	[
2142	AC_MSG_RESULT([yes])
2143	AC_DEFINE(HAVE_STRFTIME_Z, 1, [strftime supports %z])
2144	],
2145	[
2146	AC_MSG_RESULT([no])
2147	],[
2148	AC_MSG_RESULT([no])
2149	])])
2150
2151	AC_DEFUN([SH_GCC_VERSION], [
2152	GCC_VERSION=""
2153	gcc_VERSION_MAJOR=0
2154	gcc_VERSION_MINOR=0
2155	AC_MSG_CHECKING([for gcc version])
2156	if test "x$GCC" = "xyes"
2157	then
2158	$CC -dumpversion >/dev/null 2>&1
2159	if test $? -eq 0
2160	then
2161	GCC_VERSION=`$CC -dumpversion`
2162	gcc_VERSION_MAJOR=`echo $GCC_VERSION \| cut -d'.' -f1`
2163	gcc_VERSION_MINOR=`echo $GCC_VERSION \| cut -d'.' -f2`
2164	AC_DEFINE_UNQUOTED(GCC_VERSION_MAJOR, [${gcc_VERSION_MAJOR}], [gcc version major])
2165	AC_DEFINE_UNQUOTED(GCC_VERSION_MINOR, [${gcc_VERSION_MINOR}], [gcc version minor])
2166	AC_MSG_RESULT([$GCC_VERSION])
2167	else
2168	AC_MSG_RESULT([$CC -dumpversion working])
2169	fi
2170	else
2171	AC_MSG_RESULT([compiler is not gcc])
2172	fi
2173	])
2174
2175
2176
2177	dnl -wedit:notab- Please keep this as the last line.
2178

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