summaryrefslogtreecommitdiff
path: root/configure.ac
blob: b40144259a1651f475b67c588b89eedd029c1c5c (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
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_PREREQ(2.56)
sinclude(acx_nlnetlabs.m4)

# must be numbers. ac_defun because of later processing.
m4_define([VERSION_MAJOR],[1])
m4_define([VERSION_MINOR],[7])
m4_define([VERSION_MICRO],[1])
AC_INIT(ldns, m4_defn([VERSION_MAJOR]).m4_defn([VERSION_MINOR]).m4_defn([VERSION_MICRO]), libdns@nlnetlabs.nl, libdns)
AC_CONFIG_SRCDIR([packet.c])
# needed to build correct soname
AC_SUBST(LDNS_VERSION_MAJOR, [VERSION_MAJOR])
AC_SUBST(LDNS_VERSION_MINOR, [VERSION_MINOR])
AC_SUBST(LDNS_VERSION_MICRO, [VERSION_MICRO])

# Library version
# ---------------
# current:revision:age
# (binary-api-number):(which-binary-api-version):(how-many-nrs-backwardscompat)
# if source code changes increment revision
# if any interfaces have been added/removed/changed since last update then
#   increment current and set revision to 0
# if any interfaces have been added since the last public release then increment age
# if any interfaces have been removed or changed since the last public release then
#   set age to 0
#
# ldns-1.6.17 and before had a .so with version same as VERSION_INFO
# ldns-1.7.0 has libversion 2:0:0
# ldns-1.7.1 will have libversion 2:1:0
#
AC_SUBST(VERSION_INFO, [2:1:0])

AC_AIX
if test "$ac_cv_header_minix_config_h" = "yes"; then
	AC_DEFINE(_NETBSD_SOURCE,1, [Enable for compile on Minix])
fi
LT_INIT
AC_CONFIG_MACRO_DIR([m4])

OURCPPFLAGS=''
CPPFLAGS=${CPPFLAGS:-${OURCPPFLAGS}}
CFLAGS="$CFLAGS"

# Checks for programs.
AC_PROG_CC
ACX_DEPFLAG
AC_PROG_MAKE_SET

# Extra (sp)lint flags for NetBSD
AC_CANONICAL_HOST
case "$host_os" in
	netbsd*) LINTFLAGS="'-D__RENAME(x)=' -D_NETINET_IN_H_ $LINTFLAGS" 
		 ;;
	*)       LINTFLAGS="$LINTFLAGS"
		 ;;
esac
AC_SUBST(LINTFLAGS)

AC_DEFINE(WINVER, 0x0502, [the version of the windows API enabled])

ACX_CHECK_COMPILER_FLAG(std=c99, [C99FLAG="-std=c99"])
ACX_CHECK_COMPILER_FLAG(xc99, [C99FLAG="-xc99"])

# routine to copy files
# argument 1 is a list of files (relative to the source dir)
# argument 2 is a destination directory (relative to the current
# working directory
AC_DEFUN([COPY_FILES],
[
for file in $1; do
	sh $srcdir/install-sh -m 644 $file $2
done
])

# copy all .h files in the dir at argument 1
# (relative to source) to the dir at argument 2
# (relative to current dir)
AC_DEFUN([COPY_HEADER_FILES],
[
echo "copying header files"
COPY_FILES($srcdir/$1/*.h, $2)
])

# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_LANG_C
if test "x$CFLAGS" = "x" ; then
ACX_CHECK_COMPILER_FLAG(g, [CFLAGS="-g"])
ACX_CHECK_COMPILER_FLAG(O2, [CFLAGS="-O2 $CFLAGS"])
fi
ACX_CHECK_COMPILER_FLAG(Wall, [CFLAGS="-Wall $CFLAGS"])
ACX_CHECK_COMPILER_FLAG(W, [CFLAGS="-W $CFLAGS"])
ACX_CHECK_COMPILER_FLAG(Wwrite-strings, [CFLAGS="-Wwrite-strings $CFLAGS"])
ACX_CHECK_COMPILER_FLAG(Wstrict-prototypes, [CFLAGS="-Wstrict-prototypes $CFLAGS"])
#ACX_CHECK_COMPILER_FLAG(Wshadow, [CFLAGS="-Wshadow $CFLAGS"])
ACX_CHECK_COMPILER_FLAG(Wunused-function, [CFLAGS="-Wunused-function $CFLAGS"])
ACX_CHECK_COMPILER_FLAG(Wmissing-prototypes, [CFLAGS="-Wmissing-prototypes $CFLAGS"])

AC_CHECK_HEADERS([getopt.h time.h],,, [AC_INCLUDES_DEFAULT])

# MinGW32 tests
AC_CHECK_HEADERS([winsock2.h ws2tcpip.h],,, [AC_INCLUDES_DEFAULT])
# end mingw32 tests

ACX_DETERMINE_EXT_FLAGS_UNBOUND

AC_C_INLINE
AC_CHECK_TYPE(int8_t, char)
AC_CHECK_TYPE(int16_t, short)
AC_CHECK_TYPE(int32_t, int)
AC_CHECK_TYPE(int64_t, long long)
AC_CHECK_TYPE(uint8_t, unsigned char)
AC_CHECK_TYPE(uint16_t, unsigned short)
AC_CHECK_TYPE(uint32_t, unsigned int)
AC_CHECK_TYPE(uint64_t, unsigned long long)

# my own checks
AC_CHECK_PROG(doxygen, doxygen, doxygen)

# check to see if libraries are needed for these functions.
AC_SEARCH_LIBS([socket], [socket])
AC_SEARCH_LIBS([inet_pton], [nsl])


AC_ARG_WITH(drill, AC_HELP_STRING([--with-drill], 
 [Also build drill.]), 
 [],[with_drill="no"])
if test x_$with_drill != x_no ; then
	AC_SUBST(DRILL,[drill])
	AC_SUBST(INSTALL_DRILL,[install-drill])
	AC_SUBST(UNINSTALL_DRILL,[uninstall-drill])
	AC_SUBST(CLEAN_DRILL,[clean-drill])
	AC_SUBST(LINT_DRILL,[lint-drill])
	if test -e $srcdir/drill/config.h -o -e drill/config.h ; then
		AC_MSG_ERROR([
A config.h was detected in the drill subdirectory.
This does not work with the --with-drill option.
Please remove the config.h from the drill subdirectory 
or do not use the --with-drill option.])
	fi
else
	AC_SUBST(DRILL,[""])
	AC_SUBST(INSTALL_DRILL,[""])
	AC_SUBST(UNINSTALL_DRILL,[""])
	AC_SUBST(CLEAN_DRILL,[""])
	AC_SUBST(LINT_DRILL,[""])
fi


AC_ARG_WITH(examples, AC_HELP_STRING([--with-examples], 
 [Also build examples.]), 
 [],[with_examples="no"])
if test x_$with_examples != x_no ; then
	AC_SUBST(EXAMPLES,[examples])
	AC_SUBST(INSTALL_EXAMPLES,[install-examples])
	AC_SUBST(UNINSTALL_EXAMPLES,[uninstall-examples])
	AC_SUBST(CLEAN_EXAMPLES,[clean-examples])
	AC_SUBST(LINT_EXAMPLES,[lint-examples])
	if test -e $srcdir/examples/config.h -o -e examples/config.h ; then
		AC_MSG_ERROR([
A config.h was detected in the examples subdirectory.
This does not work with the --with-examples option.
Please remove the config.h from the examples subdirectory 
or do not use the --with-examples option.])
	fi
else
	AC_SUBST(EXAMPLES,[""])
	AC_SUBST(INSTALL_EXAMPLES,[""])
	AC_SUBST(UNINSTALL_EXAMPLES,[""])
	AC_SUBST(CLEAN_EXAMPLES,[""])
	AC_SUBST(LINT_EXAMPLES,[""])
fi

# add option to disable installation of ldns-config script
AC_ARG_ENABLE(ldns-config, AC_HELP_STRING([--disable-ldns-config], [disable installation of ldns-config (default=enabled)]),
	enable_ldns_config=$enableval, enable_ldns_config=yes)
if test "x$enable_ldns_config" = xyes; then
	AC_SUBST(INSTALL_CONFIG, [install-config])
	AC_SUBST(INSTALL_CONFIG_MANPAGE, [install-config-manpage])
	AC_SUBST(UNINSTALL_CONFIG, [uninstall-config])
	AC_SUBST(UNINSTALL_CONFIG_MANPAGE, [uninstall-config-manpage])
else
	AC_SUBST(INSTALL_CONFIG, [""])
	AC_SUBST(INSTALL_CONFIG_MANPAGE, [""])
	AC_SUBST(UNINSTALL_CONFIG, [""])
	AC_SUBST(UNINSTALL_CONFIG_MANPAGE, [""])
fi

# add option to disable library printing to stderr
AC_ARG_ENABLE(stderr-msgs, AC_HELP_STRING([--enable-stderr-msgs], [Enable printing to stderr (default=disabled)]), enable_stderr_msgs=$enableval, enable_stderr_msgs=no)
case "$enable_stderr_msgs" in
    no) dnl default
        ;;
    *)  
        AC_DEFINE_UNQUOTED([STDERR_MSGS], [1], [Define this to enable messages to stderr.])
        ;;
esac

AX_HAVE_POLL(
  [AX_CONFIG_FEATURE_ENABLE(poll)],
  [AX_CONFIG_FEATURE_DISABLE(poll)])
AX_CONFIG_FEATURE(
  [poll], [This platform supports poll(7)],
  [HAVE_POLL], [This platform supports poll(7).])

# check for python
PYTHON_X_CFLAGS=""
ldns_with_pyldns=no
ldns_with_pyldnsx=no
AC_ARG_WITH(pyldns, AC_HELP_STRING([--with-pyldns], 
 [generate python library, or --without-pyldns to disable Python support.]), 
 [],[ withval="no" ])
ldns_have_python=no
if test x_$withval != x_no; then
   sinclude(ax_python_devel.m4)
   ac_save_LIBS="$LIBS" dnl otherwise AC_PYTHON_DEVEL thrashes $LIBS

   AX_PYTHON_DEVEL([>= '2.4.0'])
   if test ! -z "$ac_python_version"; then
	ldns_have_python=yes
   fi

   # pass additional Python 3 option to SWIG
   if test `$PYTHON -c "import sys; \
       ver = sys.version.split()[[0]]; \
       print(ver >= '3')"` = "True"; then
       AC_SUBST(SWIGPY3, ["-py3 -DPY3"])
   fi

   # check for SWIG
   if test x_$ldns_have_python != x_no; then
        sinclude(ax_pkg_swig.m4)

        # check for >=SWIG-2.0.4 if Python 3.2 used
        if test `$PYTHON -c "import sys; \
            ver = sys.version.split()[[0]]; \
            print(ver >= '3.2')"` = "True"; then
            AX_PKG_SWIG(2.0.4, [], [AC_MSG_ERROR([SWIG-2.0.4 is required to build pyldns for Python 3.2 and greater.])])
        else
            AX_PKG_SWIG
        fi

	if test ! -x "$SWIG"; then
		AC_MSG_ERROR([failed to find SWIG tool, install it, or do not build pyldns])
	else
		AC_DEFINE(HAVE_SWIG,1,[Define if you have SWIG libraries and header files.])
		AC_SUBST(PYLDNS, "pyldns")
		AC_SUBST(swig, "$SWIG")
		ldns_with_pyldns=yes
	fi
   else
	AC_MSG_RESULT([*** don't have Python, skipping SWIG, no pyldns ***]) # '
   fi

   # xtra cflags for pyldns
   if test x_$ldns_have_python != x_no; then
	ACX_CHECK_COMPILER_FLAG(fno-strict-aliasing, [PYTHON_X_CFLAGS="-fno-strict-aliasing"])
	ACX_CHECK_COMPILER_FLAG(Wno-missing-field-initializers, [PYTHON_X_CFLAGS="-Wno-missing-field-initializers $PYTHON_X_CFLAGS"])
	ACX_CHECK_COMPILER_FLAG(Wno-unused-parameter, [PYTHON_X_CFLAGS="-Wno-unused-parameter $PYTHON_X_CFLAGS"])
	ACX_CHECK_COMPILER_FLAG(Wno-unused-variable, [PYTHON_X_CFLAGS="-Wno-unused-variable $PYTHON_X_CFLAGS"])
   fi
fi
AC_SUBST(PYTHON_X_CFLAGS)

# Check for pyldnsx
AC_ARG_WITH(pyldnsx, AC_HELP_STRING([--without-pyldnsx], 
  [Do not install the ldnsx python module, or --with-pyldnsx to install it.]), 
  [],[ withval="with_pyldns" ])
if test x_$withval != x_no; then
  if test x_$ldns_with_pyldns != x_no; then
    AC_SUBST(PYLDNSX, "pyldnsx")
    ldns_with_pyldnsx=yes
  else
    if test x_$withval != x_with_pyldns; then
      AC_MSG_ERROR([--with-pyldns is needed for the ldnsx python module])
    fi
  fi
fi

if test x_$ldns_with_pyldns != x_no; then
  AC_SUBST(PYLDNSINST, "install-pyldns")dnl
  AC_SUBST(PYLDNSUNINST, "uninstall-pyldns")
else
  AC_SUBST(PYLDNSINST, "")dnl
  AC_SUBST(PYLDNSUNINST, "")
fi
if test x_$ldns_with_pyldnsx != x_no; then
  AC_SUBST(PYLDNSXINST, "install-pyldnsx")dnl
  AC_SUBST(PYLDNSXUNINST, "uninstall-pyldnsx")
else
  AC_SUBST(PYLDNSXINST, "")dnl
  AC_SUBST(PYLDNSXUNINST, "")
fi

# check for perl
ldns_with_p5_dns_ldns=no
AC_ARG_WITH(p5-dns-ldns, AC_HELP_STRING([--with-p5-dns-ldns], 
 [generate DNS::LDNS perl bindings]), 
 [],[ withval="no" ])
ldns_have_perl=no
if test x_$withval != x_no; then
   AC_PATH_PROG([PERL], [perl])
   if test -z "$PERL"; then
      AC_MSG_ERROR([Cannot find perl in your system path])
   fi
   AC_SUBST(P5_DNS_LDNS, "p5-dns-ldns")dnl
   AC_SUBST(TEST_P5_DNS_LDNS, "test-p5-dns-ldns")dnl
   AC_SUBST(INSTALL_P5_DNS_LDNS, "install-p5-dns-ldns")dnl
   AC_SUBST(UNINSTALL_P5_DNS_LDNS, "uninstall-p5-dns-ldns")dnl
   AC_SUBST(CLEAN_P5_DNS_LDNS, "clean-p5-dns-ldns")
else
   AC_SUBST(P5_DNS_LDNS, "")dnl
   AC_SUBST(TEST_P5_DNS_LDNS, "")dnl
   AC_SUBST(INSTALL_P5_DNS_LDNS, "")dnl
   AC_SUBST(UNINSTALL_P5_DNS_LDNS, "")dnl
   AC_SUBST(CLEAN_P5_DNS_LDNS, "")
fi

# Use libtool
ACX_LIBTOOL_C_ONLY

tmp_CPPFLAGS=$CPPFLAGS
tmp_LDFLAGS=$LDFLAGS
tmp_LIBS=$LIBS

ACX_WITH_SSL_OPTIONAL
AC_MSG_CHECKING([for LibreSSL])
if grep VERSION_TEXT $ssldir/include/openssl/opensslv.h | grep "LibreSSL" >/dev/null; then
	AC_MSG_RESULT([yes])
	AC_DEFINE([HAVE_LIBRESSL], [1], [Define if we have LibreSSL])
else
	AC_MSG_RESULT([no])
fi
AC_CHECK_FUNCS([EVP_sha256 EVP_sha384 EVP_sha512 ENGINE_load_cryptodev EVP_PKEY_keygen ECDSA_SIG_get0 EVP_MD_CTX_new EVP_PKEY_base_id DSA_SIG_set0 DSA_SIG_get0 EVP_dss1 DSA_get0_pqg DSA_get0_key])

# for macosx, see if glibtool exists and use that
# BSD's need to know the version...
#AC_CHECK_PROG(glibtool, glibtool, [glibtool], )
#AC_CHECK_PROGS(libtool, [libtool15 libtool], [./libtool])

AC_ARG_ENABLE(sha2, AC_HELP_STRING([--disable-sha2], [Disable SHA256 and SHA512 RRSIG support]))
case "$enable_sha2" in
    no)
        ;;
    yes|*)
        if test "x$HAVE_SSL" != "xyes"; then
            AC_MSG_ERROR([SHA2 enabled, but no SSL support])
        fi
	AC_MSG_CHECKING(for SHA256 and SHA512)
	AC_CHECK_FUNC(SHA256_Init, [], [
		AC_MSG_ERROR([No SHA2 functions found in OpenSSL: please upgrade OpenSSL or rerun with --disable-sha2])
		])
	AC_DEFINE_UNQUOTED([USE_SHA2], [1], [Define this to enable SHA256 and SHA512 support.])
        ;;
esac

# check wether gost also works
AC_DEFUN([AC_CHECK_GOST_WORKS],
[AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING([if GOST works])
if test c${cross_compiling} = cno; then
BAKCFLAGS="$CFLAGS"
if test -n "$ssldir"; then
	CFLAGS="$CFLAGS -Wl,-rpath,$ssldir/lib"
fi
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <string.h>
#include <openssl/ssl.h>
#include <openssl/evp.h>
#include <openssl/engine.h>
#include <openssl/conf.h>
/* routine to load gost (from sldns) */
int load_gost_id(void)
{
	static int gost_id = 0;
	const EVP_PKEY_ASN1_METHOD* meth;
	ENGINE* e;

	if(gost_id) return gost_id;

	/* see if configuration loaded gost implementation from other engine*/
	meth = EVP_PKEY_asn1_find_str(NULL, "gost2001", -1);
	if(meth) {
		EVP_PKEY_asn1_get0_info(&gost_id, NULL, NULL, NULL, NULL, meth);
		return gost_id;
	}

	/* see if engine can be loaded already */
	e = ENGINE_by_id("gost");
	if(!e) {
		/* load it ourself, in case statically linked */
		ENGINE_load_builtin_engines();
		ENGINE_load_dynamic();
		e = ENGINE_by_id("gost");
	}
	if(!e) {
		/* no gost engine in openssl */
		return 0;
	}
	if(!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
		ENGINE_finish(e);
		ENGINE_free(e);
		return 0;
	}

	meth = EVP_PKEY_asn1_find_str(&e, "gost2001", -1);
	if(!meth) {
		/* algo not found */
		ENGINE_finish(e);
		ENGINE_free(e);
		return 0;
	}
	EVP_PKEY_asn1_get0_info(&gost_id, NULL, NULL, NULL, NULL, meth);
	return gost_id;
}
int main(void) { 
	EVP_MD_CTX* ctx;
	const EVP_MD* md;
	unsigned char digest[64]; /* its a 256-bit digest, so uses 32 bytes */
	const char* str = "Hello world";
	const unsigned char check[] = {
		0x40 , 0xed , 0xf8 , 0x56 , 0x5a , 0xc5 , 0x36 , 0xe1 ,
		0x33 , 0x7c , 0x7e , 0x87 , 0x62 , 0x1c , 0x42 , 0xe0 ,
		0x17 , 0x1b , 0x5e , 0xce , 0xa8 , 0x46 , 0x65 , 0x4d ,
		0x8d , 0x3e , 0x22 , 0x9b , 0xe1 , 0x30 , 0x19 , 0x9d
	};
	OPENSSL_config(NULL);
	(void)load_gost_id();
	md = EVP_get_digestbyname("md_gost94");
	if(!md) return 1;
	memset(digest, 0, sizeof(digest));
	ctx = EVP_MD_CTX_create();
	if(!ctx) return 2;
	if(!EVP_DigestInit_ex(ctx, md, NULL)) return 3;
	if(!EVP_DigestUpdate(ctx, str, 10)) return 4;
	if(!EVP_DigestFinal_ex(ctx, digest, NULL)) return 5;
	/* uncomment to see the hash calculated.
		{int i;
		for(i=0; i<32; i++)
			printf(" %2.2x", (int)digest[i]);
		printf("\n");}
	*/
	if(memcmp(digest, check, sizeof(check)) != 0)
		return 6;
	return 0;
}
]])] , [eval "ac_cv_c_gost_works=yes"], [eval "ac_cv_c_gost_works=no"])
CFLAGS="$BAKCFLAGS"
else
eval "ac_cv_c_gost_works=maybe"
fi
])dnl

AC_ARG_ENABLE(gost, AC_HELP_STRING([--disable-gost], [Disable GOST support]))
case "$enable_gost" in
    no)
        ;;
    *)  dnl default
        if test "x$HAVE_SSL" != "xyes"; then
            AC_MSG_ERROR([GOST enabled, but no SSL support])
        fi
        AC_MSG_CHECKING(for GOST)
        AC_CHECK_FUNC(EVP_PKEY_set_type_str, [],[AC_MSG_ERROR([OpenSSL >= 1.0.0 is needed for GOST support or rerun with --disable-gost])])
        AC_CHECK_FUNC(EC_KEY_new, [], [AC_MSG_ERROR([No ECC functions found in OpenSSL: please upgrade OpenSSL or rerun with --disable-gost])])
	AC_CHECK_GOST_WORKS
	AC_ARG_ENABLE(gost-anyway, AC_HELP_STRING([--enable-gost-anyway], [Enable GOST even whithout a GOST engine installed]))
	if test "$ac_cv_c_gost_works" != "no" -o "$enable_gost_anyway" = "yes"; then
		if test "$ac_cv_c_gost_works" = "no"; then
			AC_MSG_RESULT([no, but compiling with GOST support anyway])
		else
			AC_MSG_RESULT([yes])
		fi
		use_gost="yes"
		AC_DEFINE([USE_GOST], [1], [Define this to enable GOST support.])
	else
		AC_MSG_RESULT([no])
		AC_MSG_WARN([Gost support does not work because the engine is missing.])
		AC_MSG_WARN([Install gost-engine first or use the --enable-gost-anyway to compile with GOST support anyway])
		AC_MSG_WARN([See also https://github.com/gost-engine/engine/wiki for information about gost-engine])
	fi
        ;;
esac

AC_ARG_ENABLE(ecdsa, AC_HELP_STRING([--disable-ecdsa], [Disable ECDSA support]))
case "$enable_ecdsa" in
    no)
      ;;
    *) dnl default
      if test "x$HAVE_SSL" != "xyes"; then
        AC_MSG_ERROR([ECDSA enabled, but no SSL support])
      fi
      AC_CHECK_FUNC(ECDSA_sign, [], [AC_MSG_ERROR([OpenSSL does not support ECDSA: please upgrade OpenSSL or rerun with --disable-ecdsa])])
      AC_CHECK_FUNC(SHA384_Init, [], [AC_MSG_ERROR([OpenSSL does not support SHA384: please upgrade OpenSSL or rerun with --disable-ecdsa])])
      AC_CHECK_DECLS([NID_X9_62_prime256v1, NID_secp384r1], [], [AC_MSG_ERROR([OpenSSL does not support the ECDSA curves: please upgrade OpenSSL or rerun with --disable-ecdsa])], [AC_INCLUDES_DEFAULT
#include <openssl/evp.h>
      ])
      # we now know we have ECDSA and the required curves.
      AC_DEFINE_UNQUOTED([USE_ECDSA], [1], [Define this to enable ECDSA support.])
      ;;
esac

AC_ARG_ENABLE(dsa, AC_HELP_STRING([--disable-dsa], [Disable DSA support]))
case "$enable_dsa" in
    no)
      ;;
    *) dnl default
      # detect if DSA is supported, and turn it off if not.
      AC_CHECK_FUNC(DSA_SIG_new, [
	AC_DEFINE_UNQUOTED([USE_DSA], [1], [Define this to enable DSA support.])
      ], [if test "x$enable_dsa" = "xyes"; then AC_MSG_ERROR([OpenSSL does not support DSA and you used --enable-dsa.])
	  fi ])
      ;;
esac

AC_ARG_ENABLE(ed25519, AC_HELP_STRING([--enable-ed25519], [Enable ED25519 support (experimental)]))
case "$enable_ed25519" in
    yes)
      if test "x$HAVE_SSL" != "xyes"; then
        AC_MSG_ERROR([ED25519 enabled, but no SSL support])
      fi
      AC_CHECK_DECLS([NID_ED25519], [], [AC_MSG_ERROR([OpenSSL does not support the EDDSA curve: please upgrade OpenSSL or rerun with --disable-ed25519])], [AC_INCLUDES_DEFAULT
#include <openssl/evp.h>
      ])
      AC_DEFINE_UNQUOTED([USE_ED25519], [1], [Define this to enable ED25519 support.])
      ;;
    *|no) dnl default
      ;;
esac

AC_ARG_ENABLE(ed448, AC_HELP_STRING([--enable-ed448], [Enable ED448 support (experimental)]))
case "$enable_ed448" in
    yes)
      if test "x$HAVE_SSL" != "xyes"; then
        AC_MSG_ERROR([ED448 enabled, but no SSL support])
      fi
      AC_CHECK_DECLS([NID_ED448], [], [AC_MSG_ERROR([OpenSSL does not support the EDDSA curve: please upgrade OpenSSL or rerun with --disable-ed448])], [AC_INCLUDES_DEFAULT
#include <openssl/evp.h>
      ])
      AC_DEFINE_UNQUOTED([USE_ED448], [1], [Define this to enable ED448 support.])
      ;;
    *|no) dnl default
      ;;
esac

AC_ARG_ENABLE(dane, AC_HELP_STRING([--disable-dane], [Disable DANE support]))
AC_ARG_ENABLE(dane-verify, AC_HELP_STRING([--disable-dane-verify], [Disable DANE verify support]))
AC_ARG_ENABLE(dane-ta-usage, AC_HELP_STRING([--disable-dane-ta-usage], [Disable DANE-TA usage type support]))

AC_ARG_ENABLE(full-dane,, [
	enable_dane_ta_usage=yes
	enable_dane_verify=yes
	enable_dane=yes
])
AC_ARG_ENABLE(no-dane-ta-usage,, [
	enable_dane_ta_usage=no
	enable_dane_verify=yes
	enable_dane=yes
])
AC_ARG_ENABLE(no-dane-verify,, [
	enable_dane_ta_usage=no
	enable_dane_verify=no
	enable_dane=yes
])
case "$enable_dane" in
    no)
      AC_SUBST(ldns_build_config_use_dane, 0)
      AC_SUBST(ldns_build_config_use_dane_verify, 0)
      AC_SUBST(ldns_build_config_use_dane_ta_usage, 0)
      ;;
    *) dnl default
      if test "x$HAVE_SSL" != "xyes"; then
        AC_MSG_ERROR([DANE enabled, but no SSL support])
      fi
      AC_CHECK_FUNC(X509_check_ca, [], [AC_MSG_ERROR([OpenSSL does not support DANE: please upgrade OpenSSL or rerun with --disable-dane])])
      AC_SUBST(ldns_build_config_use_dane, 1)
      AC_DEFINE_UNQUOTED([USE_DANE], [1], [Define this to enable DANE support.])
      case "$enable_dane_verify" in
          no)
            AC_SUBST(ldns_build_config_use_dane_verify, 0)
            AC_SUBST(ldns_build_config_use_dane_ta_usage, 0)
	    ;;
	  *)
	    AC_SUBST(ldns_build_config_use_dane_verify, 1)
	    AC_DEFINE_UNQUOTED([USE_DANE_VERIFY], [1], [Define this to enable DANE verify support.])
            case "$enable_dane_ta_usage" in
                no)
                  AC_SUBST(ldns_build_config_use_dane_ta_usage, 0)
                  ;;
                *) dnl default
      	    LIBS="-lssl $LIBS"
                  AC_CHECK_FUNC(SSL_get0_dane, [], [AC_MSG_ERROR([OpenSSL does not support offline DANE verification (Needed for the DANE-TA usage type).  Please upgrade OpenSSL to version >= 1.1.0 or rerun with --disable-dane-verify or --disable-dane-ta-usage])])
                  LIBSSL_LIBS="-lssl $LIBSSL_LIBS"
                  AC_SUBST(ldns_build_config_use_dane_ta_usage, 1)
                  AC_DEFINE_UNQUOTED([USE_DANE_TA_USAGE], [1], [Define this to enable DANE-TA usage type support.])
                  ;;
            esac
      esac
      ;;
esac

AC_ARG_ENABLE(rrtype-ninfo, AC_HELP_STRING([--enable-rrtype-ninfo], [Enable draft RR type ninfo.]))
case "$enable_rrtype_ninfo" in
	yes)
		AC_DEFINE_UNQUOTED([RRTYPE_NINFO], [], [Define this to enable RR type NINFO.])
		;;
	no|*)
		;;
esac
AC_ARG_ENABLE(rrtype-rkey, AC_HELP_STRING([--enable-rrtype-rkey], [Enable draft RR type rkey.]))
case "$enable_rrtype_rkey" in
	yes)
		AC_DEFINE_UNQUOTED([RRTYPE_RKEY], [], [Define this to enable RR type RKEY.])
		;;
	no|*)
		;;
esac
AC_ARG_ENABLE(rrtype-openpgpkey, AC_HELP_STRING([--disable-rrtype-openpgpkey], [Disable openpgpkey RR type.]))
case "$enable_rrtype_openpgpkey" in
	no)
		;;
	yes|*)
		AC_DEFINE_UNQUOTED([RRTYPE_OPENPGPKEY], [], [Define this to enable RR type OPENPGPKEY.])
		;;
esac
AC_ARG_ENABLE(rrtype-ta, AC_HELP_STRING([--enable-rrtype-ta], [Enable draft RR type ta.]))
case "$enable_rrtype_ta" in
	yes)
		AC_DEFINE_UNQUOTED([RRTYPE_TA], [], [Define this to enable RR type TA.])
		;;
	no|*)
		;;
esac
AC_ARG_ENABLE(rrtype-avc, AC_HELP_STRING([--enable-rrtype-avc], [Enable draft RR type avc.]))
case "$enable_rrtype_avc" in
	yes)
		AC_DEFINE_UNQUOTED([RRTYPE_AVC], [], [Define this to enable RR type AVC.])
		;;
	no|*)
		;;
esac
AC_ARG_ENABLE(rrtype-doa, AC_HELP_STRING([--enable-rrtype-doa], [Enable draft RR type DOA.]))
case "$enable_rrtype_doa" in
	yes)
		AC_DEFINE_UNQUOTED([RRTYPE_DOA], [], [Define this to enable RR type DOA.])
		;;
	no|*)
		;;
esac


AC_SUBST(LIBSSL_CPPFLAGS)
AC_SUBST(LIBSSL_LDFLAGS)
AC_SUBST(LIBSSL_LIBS)
if test "x$HAVE_SSL" = "xyes"; then
AC_SUBST(LIBSSL_SSL_LIBS, ["-lssl $LIBSSL_LIBS"])
fi
CPPFLAGS=$tmp_CPPFLAGS
LDFLAGS=$tmp_LDFLAGS
LIBS=$tmp_LIBS


# add option to disable the evil rpath
ACX_ARG_RPATH

#AC_RUN_IFELSE([AC_LANG_SOURCE(
#[
#int main()
#{
#short one = 1;
#char *cp = (char*)&one;
#if ( *cp == 0 )
#return(0);
#else
#return(1);
#}
#])], [],[
#AC_DEFINE(CONFCHECK_LITTLE_ENDIAN, 1, [system appears to be little-endian])
#],[])

# should define WORDS_BIGENDIAN if the system is big-endian
AC_C_BIGENDIAN

# Checks for header files.
AC_HEADER_STDC
AC_HEADER_STDBOOL
#AC_HEADER_SYS_WAIT
#AC_CHECK_HEADERS([getopt.h fcntl.h stdlib.h string.h strings.h unistd.h])
# do the very minimum - we can always extend this
AC_CHECK_HEADERS([getopt.h stdarg.h openssl/ssl.h netinet/in.h time.h arpa/inet.h netdb.h],,, [AC_INCLUDES_DEFAULT])
AC_CHECK_HEADERS(sys/param.h sys/mount.h,,,
[AC_INCLUDES_DEFAULT
  [
   #if HAVE_SYS_PARAM_H
   # include <sys/param.h>
   #endif
  ]
])
AC_CHECK_HEADER(sys/socket.h,
[
include_sys_socket_h='#include <sys/socket.h>'
AC_DEFINE(HAVE_SYS_SOCKET_H, 1, [define if you have sys/socket.h])
],[
include_sys_socket_h=''
],[AC_INCLUDES_DEFAULT
  [
   #if HAVE_SYS_PARAM_H
   # include <sys/param.h>
   #endif
  ]
])
AC_SUBST(include_sys_socket_h)
AC_CHECK_HEADER(inttypes.h,
[
include_inttypes_h='#include <inttypes.h>'
AC_DEFINE(HAVE_INTTYPES_H, 1, [define if you have inttypes.h])
AC_SUBST(ldns_build_config_have_inttypes_h, 1)
],[
include_inttypes_h=''
AC_SUBST(ldns_build_config_have_inttypes_h, 0)
],[AC_INCLUDES_DEFAULT
])
AC_SUBST(include_inttypes_h)
AC_CHECK_HEADER(sys/types.h,
[
include_systypes_h='#include <sys/types.h>'
AC_DEFINE(HAVE_SYS_TYPES_H, 1, [define if you have sys/types.h])
],[
include_systypes_h=''
],[AC_INCLUDES_DEFAULT
])
AC_SUBST(include_systypes_h)
AC_CHECK_HEADER(unistd.h,
[
include_unistd_h='#include <unistd.h>'
AC_DEFINE(HAVE_UNISTD_H, 1, [define if you have unistd.h])
],[
include_unistd_h=''
],[AC_INCLUDES_DEFAULT
])
AC_SUBST(include_unistd_h)

AC_CHECK_SIZEOF(time_t,,[
AC_INCLUDES_DEFAULT
#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# ifdef HAVE_SYS_TIME_H
#  include <sys/time.h>
# else
#  include <time.h>
# endif
#endif
])

if test x_$with_examples != x_no; then
AC_CHECK_HEADERS([pcap.h],,, [AC_INCLUDES_DEFAULT])
AC_CHECK_LIB(pcap, pcap_open_offline, [
	AC_DEFINE([HAVE_LIBPCAP], [1], [Define to 1 if you have the `pcap' library (-lpcap).])dnl`
	AC_SUBST([LIBPCAP_LIBS], [-lpcap])
    ], [
	AC_MSG_WARN([Can't find pcap library (needed for ldns-dpa, will not build dpa now.)])dnl'
	AC_SUBST([LIBPCAP_LIBS], [])
    ]
)
AC_CHECK_HEADERS([netinet/in_systm.h net/if.h netinet/ip.h netinet/udp.h netinet/igmp.h netinet/if_ether.h netinet/ip6.h net/ethernet.h netinet/ip_compat.h],,, [
AC_INCLUDES_DEFAULT 
#ifdef HAVE_NETINET_IN_SYSTM_H
#include <netinet/in_systm.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif])
fi

ACX_TYPE_SOCKLEN_T
if test "x$ac_cv_type_socklen_t" = xyes; then
  AC_SUBST(ldns_build_config_have_socklen_t, 1)
else
  AC_SUBST(ldns_build_config_have_socklen_t, 0)
fi
AC_TYPE_SIZE_T
AC_CHECK_TYPE(ssize_t, int)
dnl AC_TYPE_INTPTR_T does not work on all platforms (autoconf)
AC_CHECK_TYPE(intptr_t, size_t)
AC_CHECK_TYPE(in_addr_t, [], [AC_DEFINE([in_addr_t], [uint32_t], [in_addr_t])], [
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif])
AC_CHECK_TYPE(in_port_t, [], [AC_DEFINE([in_port_t], [uint16_t], [in_port_t])], [
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif])
ACX_CHECK_SS_FAMILY

AC_FUNC_MALLOC
AC_FUNC_REALLOC

AC_REPLACE_FUNCS(b64_pton)
AC_REPLACE_FUNCS(b64_ntop)
AC_REPLACE_FUNCS(calloc)
AC_REPLACE_FUNCS(timegm)
AC_REPLACE_FUNCS(gmtime_r)
AC_REPLACE_FUNCS(ctime_r)
AC_REPLACE_FUNCS(localtime_r)
AC_REPLACE_FUNCS(isblank)
AC_REPLACE_FUNCS(isascii)
AC_REPLACE_FUNCS(inet_aton)
AC_REPLACE_FUNCS(inet_pton)
AC_REPLACE_FUNCS(inet_ntop)
AC_REPLACE_FUNCS(snprintf)
AC_REPLACE_FUNCS(strlcpy)
AC_REPLACE_FUNCS(memmove)
AC_FUNC_FORK
AC_CHECK_FUNCS([endprotoent endservent sleep random fcntl strtoul bzero memset b32_ntop b32_pton])
if test "x$HAVE_B32_NTOP" = "xyes"; then
	AC_SUBST(ldns_build_config_have_b32_ntop, 1)
else
	AC_SUBST(ldns_build_config_have_b32_ntop, 0)
fi
if test "x$HAVE_B32_PTON" = "xyes"; then
	AC_SUBST(ldns_build_config_have_b32_pton, 1)
else
	AC_SUBST(ldns_build_config_have_b32_pton, 0)
fi

ACX_CHECK_GETADDRINFO_WITH_INCLUDES
if test $ac_cv_func_getaddrinfo = no; then
	AC_LIBOBJ([fake-rfc2553])
fi
if test "$USE_WINSOCK" = 1; then
	AC_CHECK_TOOL(WINDRES, windres)
fi
ACX_FUNC_IOCTLSOCKET

#AC_SEARCH_LIBS(RSA_new, [crypto])

ACX_CHECK_FORMAT_ATTRIBUTE
ACX_CHECK_UNUSED_ATTRIBUTE

# check OSX deployment target, if needed
if echo $build_os | grep darwin > /dev/null; then
  sdk_p=`xcode-select -print-path`;
  sdk_v="$( /usr/bin/xcrun --show-sdk-version )";
  case $sdk_v in
       10.9|10.8)   sdk_c="10.7";;
       10.11|10.10|*) sdk_c="10.10";;
  esac
  export MACOSX_DEPLOYMENT_TARGET="${sdk_c}";
  export CFLAGS="$CFLAGS -mmacosx-version-min=${sdk_c} -isysroot ${sdk_p}/Platforms/MacOSX.platform/Developer/SDKs/MacOSX${sdk_v}.sdk";
fi

AC_DEFINE([SYSCONFDIR], [sysconfdir], [System configuration dir])

AC_ARG_WITH(trust-anchor, AC_HELP_STRING([--with-trust-anchor=KEYFILE], [Default location of the trust anchor file for drill and ldns-dane. [default=SYSCONFDIR/unbound/root.key]]), [
 AC_SUBST([LDNS_TRUST_ANCHOR_FILE], ["$withval"])
 AC_MSG_NOTICE([Default trust anchor: $withval])
],[
 AC_SUBST([LDNS_TRUST_ANCHOR_FILE], ["\$(sysconfdir)/unbound/root.key"])
])

AC_ARG_WITH(ca-file, AC_HELP_STRING([--with-ca-file=CAFILE], [File containing CA certificates for ldns-dane]), [
 AC_DEFINE([HAVE_DANE_CA_FILE], [1], [Is a CAFILE given at configure time])
 AC_DEFINE_UNQUOTED([LDNS_DANE_CA_FILE], ["$withval"], [Is a CAFILE given at configure time])
 AC_MSG_NOTICE([Using CAfile: $withval])
 AC_SUBST(DEFAULT_CAFILE, ["Default is $withval"])
],[
 AC_DEFINE([HAVE_DANE_CA_FILE], [0], [Is a CAFILE given at configure time])
 AC_SUBST(DEFAULT_CAFILE, [])
])

AC_ARG_WITH(ca-path, AC_HELP_STRING([--with-ca-path=CAPATH], [Directory containing CA certificate files for ldns-dane]), [
 AC_DEFINE([HAVE_DANE_CA_PATH], [1], [Is a CAPATH given at configure time])
 AC_DEFINE_UNQUOTED([LDNS_DANE_CA_PATH], ["$withval"], [Is a CAPATH given at configure time])
 AC_MSG_NOTICE([Using CApath: $withval])
 AC_SUBST(DEFAULT_CAPATH, ["Default is $withval"])
],[
 AC_DEFINE([HAVE_DANE_CA_PATH], [0], [Is a CAPATH given at configure time])
 AC_SUBST(DEFAULT_CAPATH, [])
])

AH_BOTTOM([
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <assert.h>

#ifndef LITTLE_ENDIAN
#define LITTLE_ENDIAN 1234
#endif

#ifndef BIG_ENDIAN
#define BIG_ENDIAN 4321
#endif

#ifndef BYTE_ORDER
#ifdef WORDS_BIGENDIAN
#define BYTE_ORDER BIG_ENDIAN
#else
#define BYTE_ORDER LITTLE_ENDIAN
#endif /* WORDS_BIGENDIAN */
#endif /* BYTE_ORDER */

#if STDC_HEADERS
#include <stdlib.h>
#include <stddef.h>
#endif

#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif

#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif

#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif

#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif

#ifdef HAVE_WINSOCK2_H
#include <winsock2.h>
#endif

#ifdef HAVE_WS2TCPIP_H
#include <ws2tcpip.h>
#endif
]
AHX_CONFIG_W32_FD_SET_T
)

AH_BOTTOM([
#ifdef __cplusplus
extern "C" {
#endif

int ldns_b64_ntop(uint8_t const *src, size_t srclength,
	 	  char *target, size_t targsize);
/**
 * calculates the size needed to store the result of b64_ntop
 */
/*@unused@*/
static inline size_t ldns_b64_ntop_calculate_size(size_t srcsize)
{
	return ((((srcsize + 2) / 3) * 4) + 1);
}
int ldns_b64_pton(char const *src, uint8_t *target, size_t targsize);
/**
 * calculates the size needed to store the result of ldns_b64_pton
 */
/*@unused@*/
static inline size_t ldns_b64_pton_calculate_size(size_t srcsize)
{
	return (((((srcsize + 3) / 4) * 3)) + 1);
}

/**
 * Given in dnssec_zone.c, also used in dnssec_sign.c:w

 */
int ldns_dname_compare_v(const void *a, const void *b);

#ifndef HAVE_SLEEP
/* use windows sleep, in millisecs, instead */
#define sleep(x) Sleep((x)*1000)
#endif

#ifndef HAVE_RANDOM
#define srandom(x) srand(x)
#define random(x) rand(x)
#endif

#ifndef HAVE_TIMEGM
#include <time.h>
time_t timegm (struct tm *tm);
#endif /* !TIMEGM */
#ifndef HAVE_GMTIME_R
struct tm *gmtime_r(const time_t *timep, struct tm *result);
#endif
#ifndef HAVE_LOCALTIME_R
struct tm *localtime_r(const time_t *timep, struct tm *result);
#endif
#ifndef HAVE_ISBLANK
int isblank(int c);
#endif /* !HAVE_ISBLANK */
#ifndef HAVE_ISASCII
int isascii(int c);
#endif /* !HAVE_ISASCII */
#ifndef HAVE_SNPRINTF
#include <stdarg.h>
int snprintf (char *str, size_t count, const char *fmt, ...);
int vsnprintf (char *str, size_t count, const char *fmt, va_list arg);
#endif /* HAVE_SNPRINTF */
#ifndef HAVE_INET_PTON
int inet_pton(int af, const char* src, void* dst);
#endif /* HAVE_INET_PTON */
#ifndef HAVE_INET_NTOP
const char *inet_ntop(int af, const void *src, char *dst, size_t size);
#endif
#ifndef HAVE_INET_ATON
int inet_aton(const char *cp, struct in_addr *addr);
#endif
#ifndef HAVE_MEMMOVE
void *memmove(void *dest, const void *src, size_t n);
#endif
#ifndef HAVE_STRLCPY
size_t strlcpy(char *dst, const char *src, size_t siz);
#endif

#ifdef USE_WINSOCK
#define SOCK_INVALID INVALID_SOCKET
#define close_socket(_s) do { if (_s > SOCK_INVALID) {closesocket(_s); _s = SOCK_INVALID;} } while(0)
#else
#define SOCK_INVALID -1
#define close_socket(_s) do { if (_s > SOCK_INVALID) {close(_s); _s = SOCK_INVALID;} } while(0)
#endif

#ifdef __cplusplus
}
#endif
#ifndef HAVE_GETADDRINFO
#include "compat/fake-rfc2553.h"
#endif
#ifndef HAVE_STRTOUL
#define strtoul (unsigned long)strtol
#endif
])

if test "x$HAVE_SSL" = "xyes"; then
	AC_SUBST(ldns_build_config_have_ssl, 1)
else
	AC_SUBST(ldns_build_config_have_ssl, 0)
fi
if test "x$ac_cv_c_format_attribute" = "xyes"; then
  AC_SUBST(ldns_build_config_have_attr_format, 1)
else
  AC_SUBST(ldns_build_config_have_attr_format, 0)
fi
if test "x$ac_cv_c_unused_attribute" = "xyes"; then
  AC_SUBST(ldns_build_config_have_attr_unused, 1)
else
  AC_SUBST(ldns_build_config_have_attr_unused, 0)
fi

CONFIG_FILES="Makefile ldns/common.h ldns/net.h ldns/util.h packaging/libldns.pc packaging/ldns-config"
AC_SUBST(CONFIG_FILES)
AC_CONFIG_FILES([$CONFIG_FILES])

AC_CONFIG_HEADER([ldns/config.h])
AC_OUTPUT
COPY_HEADER_FILES(ldns/, ldns/)

dnl AC_CONFIG_SUBDIRS([drill])