summaryrefslogtreecommitdiffstats
path: root/configure.ac
blob: ced28805a227c926d7a361d0c2f8fb3d471fa2f8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
dnl Boilerplate
AC_INIT([ipset], [7.4], [kadlec@netfilter.org])
AC_CONFIG_AUX_DIR([build-aux])
AC_CANONICAL_HOST
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_HEADER([config.h])
AM_INIT_AUTOMAKE([foreign subdir-objects tar-pax])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])

AC_ENABLE_STATIC
LT_INIT([dlopen])
LT_CONFIG_LTDL_DIR([libltdl])
LTDL_INIT([nonrecursive])

PKG_PROG_PKG_CONFIG

dnl Shortcut: Linux supported alone
case "$host" in
*-*-linux* | *-*-uclinux*) ;;
*) AC_MSG_ERROR([Linux systems supported exclusively!]);;
esac

dnl Optionnally disable building the kernel module
AC_ARG_WITH([kmod],
            AS_HELP_STRING([--with-kmod=yes/no],
                           [Build the kernel module (default: yes)]),
            [BUILDKMOD="$withval";],
            [BUILDKMOD="yes";])
AM_CONDITIONAL(WITH_KMOD, test "$BUILDKMOD" == "yes")

dnl Additional arguments
dnl Kernel build directory or source tree
AC_ARG_WITH([kbuild],
            AS_HELP_STRING([--with-kbuild=PATH],
                           [Path to kernel build directory]),
            [KBUILDDIR="$withval";])
AC_ARG_WITH([ksource],
            AS_HELP_STRING([--with-ksource=PATH],
                           [Path to kernel source directory, if not the same as the kernel build directory]),
            [KSOURCEDIR="$withval";])
AM_CONDITIONAL(WITH_KBUILDDIR, test "$KBUILDDIR" != "")
AC_SUBST(KBUILDDIR)

dnl ipset bash compspec - bash shell programmable completion
AC_ARG_ENABLE([bashcompl],
	AS_HELP_STRING([--enable-bashcompl],
	[Install bash completion for ipset]),
	[enable_bashcompl="$enableval"], [enable_bashcompl="no"])

# backward compatibility with older pkg-config
m4_ifndef([PKG_CHECK_VAR], [
# PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
# -------------------------------------------
# Retrieves the value of the pkg-config variable for the given module.
AC_DEFUN([PKG_CHECK_VAR],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl

_PKG_CONFIG([$1], [variable="][$3]["], [$2])
AS_VAR_COPY([$1], [pkg_cv_][$1])

AS_VAR_IF([$1], [""], [$5], [$4])dnl
])# PKG_CHECK_VAR
])

if test "x$enable_bashcompl" = "xyes"; then
	PKG_CHECK_VAR(bashcompdir, [bash-completion], [completionsdir], , bashcompdir="${sysconfdir}/bash_completion.d")
	AC_SUBST(bashcompdir)
fi

if test "$BUILDKMOD" == "yes"
then
dnl Sigh: check kernel version dependencies
if test "$KBUILDDIR" != ""
then
	kbuilddir="$KBUILDDIR"
else
	kbuilddir="/lib/modules/`uname -r`/build"
fi

if test -n "$KSOURCEDIR"; then
	ksourcedir="$KSOURCEDIR"
elif test -e "$kbuilddir/include/linux/netfilter/nfnetlink.h"; then
	ksourcedir="$kbuilddir"
else
	ksourcedir="/lib/modules/$(uname -r)/source"
fi
if test ! -e "$ksourcedir/include/linux/netfilter/nfnetlink.h"
then
	AC_MSG_ERROR([Invalid kernel source directory $ksourcedir])
fi

if test ! -e "$kbuilddir/.config"
then
	AC_MSG_ERROR([The kernel build directory $kbuilddir is not configured])
fi

AC_PROG_GREP
AC_PROG_AWK

if ! $GREP -q "NFNL_SUBSYS_IPSET" "$ksourcedir/include/linux/netfilter/nfnetlink.h" && \
   ! $GREP -q "NFNL_SUBSYS_IPSET" "$ksourcedir/include/uapi/linux/netfilter/nfnetlink.h";
then
	AC_MSG_ERROR([The kernel source directory $ksourcedir is not patched with netlink.patch to support ipset])
fi
fi

dnl Maximal number of sets supported by the kernel, default 256
AC_ARG_WITH([maxsets],
	    AS_HELP_STRING([--with-maxsets=256],
	    		   [Maximal numer of sets supported by the kernel]),
	    [MAXSETS="$withval";])
AM_CONDITIONAL(WITH_MAXSETS, test "$MAXSETS" != "")
AC_SUBST(MAXSETS)

dnl Verbose compiling
AC_ARG_ENABLE([verbose],
	      AS_HELP_STRING([--enable-verbose],
	                     [Enable verbose mode at compiling/linking.]),
	      [case "${enableval}" in
	       yes)	enable_verbose=yes ;;
	       no)	enable_verbose=no ;;
	       *) AC_MSG_ERROR([bad value ${enableval} for --enable-verbose]) ;;
	       esac], [enable_verbose=no])
	      
AC_ARG_ENABLE([debug],
	AS_HELP_STRING([--enable-debug], [enable debug messages @<:@default=disabled@:>@]),
	[], [enable_debug=no])
AS_IF([test "x$enable_debug" = "xyes"], [
	AC_DEFINE(ENABLE_DEBUG, [1], [Debug messages.])
])
AM_CONDITIONAL([ENABLE_DEBUG], [test "x$enable_debug" = xyes])

dnl Enable type modules
AC_ARG_ENABLE([settype_modules],
	          AS_HELP_STRING([--enable-settype-modules],
	          [Enable set type modules support]),
	          [enable_settype_modules="$enableval"],
	          [enable_settype_modules="no"])

AC_ARG_WITH([settype_modules_list],
	        AS_HELP_STRING([--with-settype-modules-list="mod1 mod2 ..."],
	                       [List of dynamic loading modules, ignored if settype-modules is disabled. It could be "all" to build all available settypes as modules]),
	                       [SETTYPE_MODLIST_RAW="$withval";])

SETTYPE_MODLIST=
if test "x$enable_settype_modules" = "xyes"; then
	for mod in $SETTYPE_MODLIST_RAW; do
		if echo $mod | grep "all"; then
			m="${mod}"
		else
			if echo $mod | grep "ipset_"; then
				m="${mod}.c"
			else
				m="ipset_${mod}.c"
			fi
		fi

		SETTYPE_MODLIST="${SETTYPE_MODLIST} $m"
	done

	AC_MSG_RESULT([checking for configuration with dynamic loading modules... $SETTYPE_MODLIST_RAW])
fi
AC_SUBST(SETTYPE_MODLIST)

AM_CONDITIONAL([ENABLE_SETTYPE_MODULES], [test "x$enable_settype_modules" = xyes])

AM_CONDITIONAL([ENABLE_STATIC], [test "x$enable_static" = xyes])
AM_CONDITIONAL([ENABLE_SHARED], [test "x$enable_shared" = xyes])

dnl Checks for programs
: ${CFLAGS=""}

AC_PROG_CC
AM_PROG_CC_C_O
AC_PROG_LIBTOOL
AC_PROG_INSTALL
AC_PROG_LN_S

dnl Checks for libraries
PKG_CHECK_MODULES([libmnl], [libmnl >= 1])

dnl Checks for header files

dnl Checks for declarations
AC_CHECK_DECLS([NLA_F_NESTED, NLA_F_NET_BYTEORDER, NLA_TYPE_MASK],,
		[AC_MSG_ERROR([System kernel header files are older than 2.6.24, use CFLAGS for non-default location])],
		[#include <sys/socket.h>
#include <linux/netlink.h>])

dnl Checks for typedefs, structures
AC_CHECK_TYPES([union nf_inet_addr],,,[#include <linux/types.h>
#include <netinet/in.h>
#include <linux/netfilter.h>])

dnl Checks for functions
AC_CHECK_FUNCS(gethostbyname2)

if test "$BUILDKMOD" == "yes"
then
dnl Check kernel incompatibilities... Ugly like hell
AC_MSG_CHECKING([kernel source for struct xt_action_param])
if test -f $ksourcedir/include/linux/netfilter/x_tables.h && \
   $GREP -q 'struct xt_action_param' $ksourcedir/include/linux/netfilter/x_tables.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_STRUCT_XT_ACTION_PARAM, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_STRUCT_XT_ACTION_PARAM, undef)
fi

AC_MSG_CHECKING([kernel source for vzalloc])
if test -f $ksourcedir/include/linux/vmalloc.h && \
   $GREP -q 'vzalloc' $ksourcedir/include/linux/vmalloc.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_VZALLOC, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_VZALLOC, undef)
fi

AC_MSG_CHECKING([kernel source for ether_addr_equal])
if test -f $ksourcedir/include/linux/etherdevice.h && \
   $GREP -q 'ether_addr_equal' $ksourcedir/include/linux/etherdevice.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_ETHER_ADDR_EQUAL, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_ETHER_ADDR_EQUAL, undef)
fi

AC_MSG_CHECKING([kernel source for is_zero_ether_addr])
if test -f $ksourcedir/include/linux/etherdevice.h && \
   $GREP -q 'is_zero_ether_addr' $ksourcedir/include/linux/etherdevice.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_IS_ZERO_ETHER_ADDR, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_IS_ZERO_ETHER_ADDR, undef)
fi

AC_MSG_CHECKING([kernel source for nla_put_be16])
if test -f $ksourcedir/include/net/netlink.h && \
   $GREP -q 'nla_put_be16' $ksourcedir/include/net/netlink.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_NLA_PUT_BE16, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_NLA_PUT_BE16, undef)
fi

AC_MSG_CHECKING([kernel source for nla_put_be64])
if test -f $ksourcedir/include/net/netlink.h && \
   $GREP -q 'nla_put_be64' $ksourcedir/include/net/netlink.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_NLA_PUT_BE64, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_NLA_PUT_BE64, undef)
fi

AC_MSG_CHECKING([kernel source for nla_put_64bit])
if test -f $ksourcedir/include/net/netlink.h && \
   $GREP -q 'nla_put_64bit' $ksourcedir/include/net/netlink.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_NLA_PUT_64BIT, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_NLA_PUT_64BIT, undef)
fi

AC_MSG_CHECKING([kernel source for portid in nl_info])
if test -f $ksourcedir/include/linux/netlink.h && \
   $AWK '/^struct netlink_skb_parms /,/^}/' $ksourcedir/include/linux/netlink.h | $GREP -q 'portid;'; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_NL_INFO_PORTID, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_NL_INFO_PORTID, undef)
fi

AC_MSG_CHECKING([kernel source for netlink_dump_start args])
if test -f $ksourcedir/include/linux/netlink.h && \
   $AWK '/ netlink_dump_start\(/,/\)/' $ksourcedir/include/linux/netlink.h | $GREP -q 'done.*;'; then
	AC_MSG_RESULT(5 args)
	AC_SUBST(HAVE_NETLINK_DUMP_START_ARGS, 5)
elif test -f $ksourcedir/include/linux/netlink.h && \
   $AWK '/ netlink_dump_start\(/,/\)/' $ksourcedir/include/linux/netlink.h | $GREP -q 'min_dump_alloc.*;'; then
	AC_MSG_RESULT(6 args)
	AC_SUBST(HAVE_NETLINK_DUMP_START_ARGS, 6)
else
	AC_MSG_RESULT(4 args)
	AC_SUBST(HAVE_NETLINK_DUMP_START_ARGS, 4)
fi

AC_MSG_CHECKING([kernel source for ns_capable])
if test -f $ksourcedir/include/linux/capability.h && \
   $GREP -q 'ns_capable' $ksourcedir/include/linux/capability.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_NS_CAPABLE, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_NS_CAPABLE, undef)
fi

AC_MSG_CHECKING([kernel source for nfnl_lock per subsys])
if test -f $ksourcedir/include/linux/netfilter/nfnetlink.h && \
   $GREP -q 'nfnl_lock.* subsys_id' $ksourcedir/include/linux/netfilter/nfnetlink.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_NFNL_LOCK_SUBSYS, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_NFNL_LOCK_SUBSYS, undef)
fi

AC_MSG_CHECKING([kernel source for export.h])
if test -f $ksourcedir/include/linux/export.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_EXPORT_H, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_EXPORT_H, undef)
fi

AC_MSG_CHECKING([kernel source for ipv6_skip_exthdr args])
if test -f $ksourcedir/include/net/ipv6.h && \
   $AWK '/( |\t)ipv6_skip_exthdr\(/,/\)/' $ksourcedir/include/net/ipv6.h | $GREP -q 'frag_offp'; then
	AC_MSG_RESULT(4 args)
	AC_SUBST(HAVE_IPV6_SKIP_EXTHDR_ARGS, 4)
else
	AC_MSG_RESULT(3 args)
	AC_SUBST(HAVE_IPV6_SKIP_EXTHDR_ARGS, 3)
fi

AC_MSG_CHECKING([kernel source for cond_resched_rcu])
if test -f $ksourcedir/include/linux/sched.h && \
   $AWK '/( |\t)cond_resched_rcu\(/,/\)/' $ksourcedir/include/linux/sched.h | $GREP -q 'cond_resched_rcu'; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_COND_RESCHED_RCU, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_COND_RESCHED_RCU, undef)
fi

AC_MSG_CHECKING([kernel source for bool checkentry function prototype])
if test -f $ksourcedir/include/linux/netfilter/x_tables.h && \
   $GREP -q 'bool .\*checkentry.' $ksourcedir/include/linux/netfilter/x_tables.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_CHECKENTRY_BOOL, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_CHECKENTRY_BOOL, undef)
fi

AC_MSG_CHECKING([kernel source for old struct xt_target_param])
if test -f $ksourcedir/include/linux/netfilter/x_tables.h && \
   $GREP -q '^struct xt_target_param ' $ksourcedir/include/linux/netfilter/x_tables.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_XT_TARGET_PARAM, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_XT_TARGET_PARAM, undef)
fi

AC_MSG_CHECKING([kernel source for id in struct pernet_operations])
if test -f $ksourcedir/include/net/net_namespace.h && \
   $AWK '/^struct pernet_operations /,/^}/' $ksourcedir/include/net/net_namespace.h | $GREP -q 'int \*id;'; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_NET_OPS_ID, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_NET_OPS_ID, undef)
fi

AC_MSG_CHECKING([kernel source for async in struct pernet_operations])
if test -f $ksourcedir/include/net/net_namespace.h && \
   $AWK '/^struct pernet_operations /,/^}/' $ksourcedir/include/net/net_namespace.h | $GREP -q 'bool async;'; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_NET_OPS_ASYNC, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_NET_OPS_ASYNC, undef)
fi

AC_MSG_CHECKING([kernel source for user_ns in struct net])
if test -f $ksourcedir/include/net/net_namespace.h && \
   $AWK '/^struct net \{/,/^}/' $ksourcedir/include/net/net_namespace.h | $GREP -q 'user_ns'; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_USER_NS_IN_STRUCT_NET, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_USER_NS_IN_STRUCT_NET, undef)
fi

AC_MSG_CHECKING([kernel source for rbtree_postorder_for_each_entry_safe])
if test -f $ksourcedir/include/linux/rbtree.h && \
   $GREP -q 'rbtree_postorder_for_each_entry_safe' $ksourcedir/include/linux/rbtree.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_RBTREE_POSTORDER_FOR_EACH_ENTRY_SAFE, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_RBTREE_POSTORDER_FOR_EACH_ENTRY_SAFE, undef)
fi

AC_MSG_CHECKING([kernel source for kvcalloc])
if test -f $ksourcedir/include/linux/mm.h && \
   $GREP -q 'kvcalloc' $ksourcedir/include/linux/mm.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_KVCALLOC, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_KVCALLOC, undef)
fi

AC_MSG_CHECKING([kernel source for kvfree])
if test -f $ksourcedir/include/linux/mm.h && \
   $GREP -q 'kvfree' $ksourcedir/include/linux/mm.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_KVFREE, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_KVFREE, undef)
fi

AC_MSG_CHECKING([kernel source for struct net in struct xt_mtchk_param])
if test -f $ksourcedir/include/linux/netfilter/x_tables.h && \
   $AWK '/^struct xt_mtchk_param /,/^}/' $ksourcedir/include/linux/netfilter/x_tables.h | \
   $GREP -q 'struct net '; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_XT_MTCHK_PARAM_STRUCT_NET, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_XT_MTCHK_PARAM_STRUCT_NET, undef)
fi

AC_MSG_CHECKING([kernel source for struct net in the change function of tcf_ematch_ops])
if test -f $ksourcedir/include/net/pkt_cls.h && \
   $AWK '/^struct tcf_ematch_ops /,/^}/' $ksourcedir/include/net/pkt_cls.h | \
   $GREP -q '\*change..struct net \*net'; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_TCF_EMATCH_OPS_CHANGE_ARG_NET, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_TCF_EMATCH_OPS_CHANGE_ARG_NET, undef)
fi

AC_MSG_CHECKING([kernel source for struct net in struct tcf_ematch])
if test -f $ksourcedir/include/net/pkt_cls.h && \
   $AWK '/^struct tcf_ematch /,/^}/' $ksourcedir/include/net/pkt_cls.h | \
   $GREP -q 'struct net'; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_TCF_EMATCH_STRUCT_NET, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_TCF_EMATCH_STRUCT_NET, undef)
fi

AC_MSG_CHECKING([kernel source for list_last_entry])
if test -f $ksourcedir/include/linux/list.h && \
   $GREP -q 'list_last_entry' $ksourcedir/include/linux/list.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_LIST_LAST_ENTRY, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_LIST_LAST_ENTRY, undef)
fi

AC_MSG_CHECKING([kernel source for list_next_entry])
if test -f $ksourcedir/include/linux/list.h && \
   $GREP -q 'list_next_entry' $ksourcedir/include/linux/list.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_LIST_NEXT_ENTRY, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_LIST_NEXT_ENTRY, undef)
fi

AC_MSG_CHECKING([kernel source for ether_addr_copy])
if test -f $ksourcedir/include/linux/etherdevice.h && \
   $GREP -q 'ether_addr_copy' $ksourcedir/include/linux/etherdevice.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_ETHER_ADDR_COPY, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_ETHER_ADDR_COPY, undef)
fi

AC_MSG_CHECKING([kernel source for nf_bridge_get_physindev])
if test -f $ksourcedir/include/linux/netfilter_bridge.h && \
   $GREP -q 'nf_bridge_get_physindev' $ksourcedir/include/linux/netfilter_bridge.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_NF_BRIDGE_GET_PHYSDEV, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_NF_BRIDGE_GET_PHYSDEV, undef)
fi

AC_MSG_CHECKING([kernel source for nla_put_in_addr])
if test -f $ksourcedir/include/net/netlink.h && \
   $GREP -q 'nla_put_in_add' $ksourcedir/include/net/netlink.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_NLA_PUT_IN_ADDR, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_NLA_PUT_IN_ADDR, undef)
fi

AC_MSG_CHECKING([kernel source for struct net in the call() function in struct nfnl_callback])
if test -f $ksourcedir/include/linux/netfilter/nfnetlink.h && \
   $AWK '/^struct nfnl_callback /,/\);$/' $ksourcedir/include/linux/netfilter/nfnetlink.h | \
   $GREP -q 'struct net'; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_NET_IN_NFNL_CALLBACK_FN, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_NET_IN_NFNL_CALLBACK_FN, undef)
fi

AC_MSG_CHECKING([kernel source for EXPORT_SYMBOL_GPL in module.h])
if test -f $ksourcedir/include/linux/module.h && \
   $GREP -q 'EXPORT_SYMBOL_GPL' $ksourcedir/include/linux/module.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_EXPORT_SYMBOL_GPL_IN_MODULE_H, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_EXPORT_SYMBOL_GPL_IN_MODULE_H, undef)
fi

AC_MSG_CHECKING([kernel source for tc_skb_protocol in pkt_sched.h])
if test -f $ksourcedir/include/net/pkt_sched.h && \
   $GREP -q 'tc_skb_protocol' $ksourcedir/include/net/pkt_sched.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_TC_SKB_PROTOCOL, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_TC_SKB_PROTOCOL, undef)
fi

AC_MSG_CHECKING([kernel source for struct net in struct xt_action_param])
if test -f $ksourcedir/include/linux/netfilter/x_tables.h && \
   $AWK '/^struct xt_action_param /,/^}/' $ksourcedir/include/linux/netfilter/x_tables.h | \
   $GREP -q 'struct net '; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_NET_IN_XT_ACTION_PARAM, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_NET_IN_XT_ACTION_PARAM, undef)
fi

AC_MSG_CHECKING([kernel source for struct nf_hook_state in struct xt_action_param])
if test -f $ksourcedir/include/linux/netfilter/x_tables.h && \
   $AWK '/^struct xt_action_param /,/^}/' $ksourcedir/include/linux/netfilter/x_tables.h | \
   $GREP -q 'struct nf_hook_state '; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_STATE_IN_XT_ACTION_PARAM, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_STATE_IN_XT_ACTION_PARAM, undef)
fi

AC_MSG_CHECKING([kernel source for xt_family() in x_tables.h])
if test -f $ksourcedir/include/linux/netfilter/x_tables.h && \
   $GREP -q 'xt_family' $ksourcedir/include/linux/netfilter/x_tables.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_XT_FAMILY, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_XT_FAMILY, undef)
fi

AC_MSG_CHECKING([kernel source for xt_net() in x_tables.h])
if test -f $ksourcedir/include/linux/netfilter/x_tables.h && \
   $GREP -q 'xt_net' $ksourcedir/include/linux/netfilter/x_tables.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_XT_NET, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_XT_NET, undef)
fi

AC_MSG_CHECKING([kernel source for nfnl_msg_type() in nfnetlink.h])
if test -f $ksourcedir/include/linux/netfilter/nfnetlink.h && \
   $GREP -q 'nfnl_msg_type' $ksourcedir/include/linux/netfilter/nfnetlink.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_NFNL_MSG_TYPE, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_NFNL_MSG_TYPE, undef)
fi

AC_MSG_CHECKING([kernel source for netlink extended ACK])
if test -f $ksourcedir/include/linux/netlink.h && \
   $AWK '/void netlink_ack\(/,/\)/' $ksourcedir/include/linux/netlink.h | $GREP -q 'const struct netlink_ext_ack'; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_NETLINK_EXTENDED_ACK, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_NETLINK_EXTENDED_ACK, undef)
fi

AC_MSG_CHECKING([kernel source for passing extended ACK struct to parsing functions])
if test -f $ksourcedir/include/net/netlink.h && \
   $AWK '/^static inline int nla_parse_nested\(/,/\)/' $ksourcedir/include/net/netlink.h | $GREP -q 'struct netlink_ext_ack'; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_PASSING_EXTENDED_ACK_TO_PARSERS, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_PASSING_EXTENDED_ACK_TO_PARSERS, undef)
fi

AC_MSG_CHECKING([kernel source for passing extended ACK struct to callback functions])
if test -f $ksourcedir/include/linux/netfilter/nfnetlink.h && \
   $AWK '/^struct nfnl_callback /,/^}/' $ksourcedir/include/linux/netfilter/nfnetlink.h | $GREP -q 'struct netlink_ext_ack'; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_PASSING_EXTENDED_ACK_TO_CALLBACKS, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_PASSING_EXTENDED_ACK_TO_CALLBACKS, undef)
fi

AC_MSG_CHECKING([kernel source for no typedef sctp_sctphdr_t])
if test -f $ksourcedir/include/linux/sctp.h && \
   $GREP -q '^typedef struct sctphdr' $ksourcedir/include/linux/sctp.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_TYPEDEF_SCTP_SCTPHDR_T, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_TYPEDEF_SCTP_SCTPHDR_T, undef)
fi

AC_MSG_CHECKING([kernel source for timer_setup in timer.h])
if test -f $ksourcedir/include/linux/timer.h && \
   $GREP -q ' timer_setup' $ksourcedir/include/linux/timer.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_TIMER_SETUP, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_TIMER_SETUP, undef)
fi

AC_MSG_CHECKING([kernel source for lockdep_nfnl_is_held() in nfnetlink.h])
if test -f $ksourcedir/include/linux/netfilter/nfnetlink.h && \
   $GREP -q ' lockdep_nfnl_is_held' $ksourcedir/include/linux/netfilter/nfnetlink.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_LOCKDEP_NFNL_IS_HELD, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_LOCKDEP_NFNL_IS_HELD, undef)
fi

AC_MSG_CHECKING([kernel source for strscpy() in string.h])
if test -f $ksourcedir/include/linux/timer.h && \
   $GREP -q ' strscpy' $ksourcedir/include/linux/string.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_STRSCPY, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_STRSCPY, undef)
fi

AC_MSG_CHECKING([kernel source for synchronize_rcu_bh() in rcutiny.h and rcupdate.h])
if test -f $ksourcedir/include/linux/rcupdate.h && \
   $GREP -q 'static inline void synchronize_rcu_bh' \
	$ksourcedir/include/linux/rcutiny.h $ksourcedir/include/linux/rcupdate.h; then
	AC_MSG_RESULT(yes)
	AC_SUBST(HAVE_SYNCHRONIZE_RCU_BH, define)
else
	AC_MSG_RESULT(no)
	AC_SUBST(HAVE_SYNCHRONIZE_RCU_BH, undef)
fi

AC_MSG_CHECKING([kernel source for struct net_generic])
if test -f $ksourcedir/include/net/netns/generic.h && \
   $GREP -q 'struct net_generic' $ksourcedir/include/net/netns/generic.h; then
	AC_MSG_RESULT(yes)
else
	AC_MSG_RESULT(no)
	AC_MSG_ERROR([Netns support is required in the Linux kernel tree])
fi
fi

dnl Checks for compiler characteristics.
dnl Check extra warning flags except
dnl	-Wconversion		-> we need it
dnl	-Wunreachable-code	-> fails with ntoh*
dnl	-Wpointer-arith		-> limbnl uses it
dnl	-Wsign-conversion	-> libmnl
if test "x$enable_debug" = "xyes"
then
AX_CFLAGS_GCC_OPTION(-Waggregate-return)
AX_CFLAGS_GCC_OPTION(-Wbad-function-cast)
AX_CFLAGS_GCC_OPTION(-Wcast-align)
AX_CFLAGS_GCC_OPTION(-Wcast-qual)
AX_CFLAGS_GCC_OPTION(-Werror)
AX_CFLAGS_GCC_OPTION(-Wextra)
AX_CFLAGS_GCC_OPTION(-Wfloat-equal)
AX_CFLAGS_GCC_OPTION(-Wformat=2)
AX_CFLAGS_GCC_OPTION(-Wjump-misses-init)
AX_CFLAGS_GCC_OPTION(-Winit-self)
AX_CFLAGS_GCC_OPTION(-Winline)
AX_CFLAGS_GCC_OPTION(-Wlogical-op)
AX_CFLAGS_GCC_OPTION(-Wmissing-declarations)
AX_CFLAGS_GCC_OPTION(-Wmissing-format-attribute)
AX_CFLAGS_GCC_OPTION(-Wmissing-prototypes)
AX_CFLAGS_GCC_OPTION(-Wnested-externs)
AX_CFLAGS_GCC_OPTION(-Wno-missing-field-initializers)
AX_CFLAGS_GCC_OPTION(-Wold-style-definition)
AX_CFLAGS_GCC_OPTION(-Woverlength-strings)
AX_CFLAGS_GCC_OPTION(-Wpacked)
AX_CFLAGS_GCC_OPTION(-Wredundant-decls)
AX_CFLAGS_GCC_OPTION(-Wrwrite-strings)
AX_CFLAGS_GCC_OPTION(-Wshadow)
AX_CFLAGS_GCC_OPTION(-Wsign-compare)
AX_CFLAGS_GCC_OPTION(-Wstrict-prototypes)
AX_CFLAGS_GCC_OPTION(-Wswitch-default)
AX_CFLAGS_GCC_OPTION(-Wundef)
AX_CFLAGS_GCC_OPTION(-Wuninitialized)
AX_CFLAGS_GCC_OPTION(-Wunused)
AX_CFLAGS_GCC_OPTION(-Wvla)
AX_CFLAGS_GCC_OPTION(-Wwrite-strings)
fi
dnl Checks for library functions.

dnl Generate output
AC_CONFIG_FILES([Makefile include/libipset/Makefile
	lib/Makefile lib/libipset.pc src/Makefile utils/Makefile
	kernel/include/linux/netfilter/ipset/ip_set_compat.h])
AC_OUTPUT

dnl Summary
AC_MSG_RESULT([])
AC_MSG_RESULT([$PACKAGE userspace tool configuration:])
if test "x$bashcompdir" != "x"; then
	AC_MSG_RESULT([    Bash completion directory: ${bashcompdir}])
fi
if test "x$enable_settype_modules" != "xyes"; then
	AC_MSG_RESULT([    Dynamic module loading: disabled])
else
	AC_MSG_RESULT([    Dynamic module loading: enabled])
fi
IPSET_ALL_MODULES="`ls ${srcdir}/lib/ipset_*.c|sed -e 's/^.*lib\///' -e 's/\.c$//'`"
AC_MSG_RESULT([    Static modules:])
if test "x$SETTYPE_MODLIST" = "x"; then
	for mod in $IPSET_ALL_MODULES; do
		AC_MSG_RESULT([        ${mod}])
	done
	AC_MSG_RESULT([    Dynamic modules:])
elif echo $SETTYPE_MODLIST | grep "all" >/dev/null; then
	AC_MSG_RESULT([    Dynamic modules:])
	for mod in $IPSET_ALL_MODULES; do
		AC_MSG_RESULT([        ${mod}])
	done
else
	for mod in $IPSET_ALL_MODULES; do
		if echo $SETTYPE_MODLIST | grep -w "$mod" >/dev/null; then
			:
		else
			AC_MSG_RESULT([        ${mod}])
		fi
	done
	AC_MSG_RESULT([    Dynamic modules:])
	for mod in $IPSET_ALL_MODULES; do
		if echo $SETTYPE_MODLIST | grep -w "$mod" >/dev/null; then
			AC_MSG_RESULT([        ${mod}])
		fi
	done
fi