forked from NLnetLabs/nsd
-
Notifications
You must be signed in to change notification settings - Fork 0
/
configure.ac
1418 lines (1288 loc) · 43.6 KB
/
configure.ac
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
dnl
dnl Some global settings
dnl
sinclude(acx_nlnetlabs.m4)
sinclude(dnstap/dnstap.m4)
# autoconf-2.70 is needed for @runstatedir@
AC_PREREQ([2.70])
AC_INIT([NSD],[4.10.1],[https://github.com/NLnetLabs/nsd/issues or [email protected]])
AC_CONFIG_HEADERS([config.h])
#
# Setup the standard programs
# https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Setting-Output-Variables.html
AC_ARG_VAR(SED, [location of the sed program])
AC_ARG_VAR(AWK, [location of the awk program])
AC_ARG_VAR(GREP, [location of the grep program])
AC_ARG_VAR(EGREP, [location of the egrep program])
AC_ARG_VAR(LEX, [location of the lex program with GNU extensions (flex)])
AC_ARG_VAR(YACC, [location of the yacc program with GNU extensions (bison)])
cmdln="`echo $@ | sed -e 's/\\\\/\\\\\\\\/g' | sed -e 's/"/\\\\"/'g`"
AC_DEFINE_UNQUOTED(CONFCMDLINE, ["$cmdln"], [Command line arguments used with configure])
CFLAGS="$CFLAGS"
AC_USE_SYSTEM_EXTENSIONS
if test "$ac_cv_header_minix_config_h" = "yes"; then
AC_DEFINE(_NETBSD_SOURCE,1, [Enable for compile on Minix])
fi
dnl
dnl By default set $sysconfdir to /etc and $localstatedir to /var
dnl
case "$prefix" in
NONE)
case "$sysconfdir" in
'${prefix}/etc')
sysconfdir=/etc
;;
esac
case "$localstatedir" in
'${prefix}/var')
localstatedir=/var
;;
esac
;;
esac
#
# Determine configuration directory
#
configdir=$sysconfdir/nsd
AC_ARG_WITH([configdir],
AS_HELP_STRING([--with-configdir=dir],[NSD configuration directory]),
[configdir=$withval])
AC_DEFINE_UNQUOTED(CONFIGDIR, ["`eval echo $configdir`"], [NSD config dir])
AC_SUBST(configdir)
#
# Determine configuration file
nsd_conf_file=${configdir}/nsd.conf
AC_ARG_WITH([nsd_conf_file],
AS_HELP_STRING([--with-nsd_conf_file=path],[Pathname to the NSD configuration file]),
[nsd_conf_file=$withval])
AC_SUBST(nsd_conf_file)
# the eval is to evaluate shell expansion twice, once
# for $nsd_conf_file and once for the ${prefix} within it.
AC_DEFINE_UNQUOTED(CONFIGFILE, ["`eval echo $nsd_conf_file`"], [Pathname to the NSD configuration file])
#
# Default logfile
#
logfile=${localstatedir}/log/nsd.log
AC_ARG_WITH([logfile],
AS_HELP_STRING([--with-logfile=path],[Pathname to the default log file]),
[logfile=$withval])
AC_SUBST(logfile)
#
# Database directory
#
dbdir=${localstatedir}/db/nsd
#
# Determine the pidfile location. Check if /var/run exists, if so set pidfile
# to /var/run/nsd.pid by default
#
if test -d ${localstatedir}/run; then
pidfile=${localstatedir}/run/nsd.pid
else
pidfile=${dbdir}/nsd.pid
fi
AC_ARG_WITH([pidfile],
AS_HELP_STRING([--with-pidfile=path],[Pathname to the NSD pidfile]),
[pidfile=$withval])
AC_SUBST(pidfile)
AC_DEFINE_UNQUOTED(PIDFILE, ["`eval echo $pidfile`"], [Pathname to the NSD pidfile])
AC_ARG_WITH([dbfile],
AS_HELP_STRING([--with-dbfile=path],[Pathname to the NSD database (obsolete)]),[])
piddir=`dirname $pidfile`
AC_SUBST(piddir)
#
# Determine the default directory for the zone files
#
zonesdir=$configdir
AC_ARG_WITH([zonesdir],
AS_HELP_STRING([--with-zonesdir=dir],[NSD default location for zone files]),
[zonesdir=$withval])
AC_SUBST(zonesdir)
AC_DEFINE_UNQUOTED(ZONESDIR, ["`eval echo $zonesdir`"], [NSD default location for zone files. Empty string or NULL to disable.])
# default xfrd file location.
xfrdfile=${dbdir}/xfrd.state
AC_ARG_WITH([xfrdfile], AS_HELP_STRING([--with-xfrdfile=path],[Pathname to the NSD xfrd zone timer state file]), [xfrdfile=$withval])
AC_DEFINE_UNQUOTED(XFRDFILE, ["`eval echo $xfrdfile`"], [Pathname to the NSD xfrd zone timer state file.])
AC_SUBST(xfrdfile)
# default zonelist file location.
zonelistfile=${dbdir}/zone.list
AC_ARG_WITH([zonelistfile], AS_HELP_STRING([--with-zonelistfile=path],[Pathname to the NSD zone list file]), [zonelistfile=$withval])
AC_DEFINE_UNQUOTED(ZONELISTFILE, ["`eval echo $zonelistfile`"], [Pathname to the NSD zone list file.])
AC_SUBST(zonelistfile)
# default cookiesecrets file location.
cookiesecretsfile=${dbdir}/cookiesecrets.txt
AC_ARG_WITH([cookiesecretsfile], AS_HELP_STRING([--with-cookiesecretsfile=path],[Pathname to the NSD cookie secrets file]), [cookiesecretsfile=$withval])
AC_DEFINE_UNQUOTED(COOKIESECRETSFILE, ["`eval echo $cookiesecretsfile`"], [Pathname to the NSD cookies secrets file.])
AC_SUBST(cookiesecretsfile)
# default xfr dir location.
xfrdir="/tmp"
AC_ARG_WITH([xfrdir], AS_HELP_STRING([--with-xfrdir=path],[Pathname to where the NSD transfer dir is created]), [xfrdir=$withval])
AC_DEFINE_UNQUOTED(XFRDIR, ["`eval echo $xfrdir`"], [Pathname to where the NSD transfer dir is created.])
AC_SUBST(xfrdir)
# nsd sbin location. tmpinstantiate execprefix with defaults if not yet done.
if test "x${exec_prefix}" = "xNONE"; then
if test "x${prefix}" = "xNONE"; then exec_prefix="$ac_default_prefix"
else exec_prefix="${prefix}"; fi
nsd_start_path="`eval echo $sbindir`/nsd"
exec_prefix="NONE"
else
nsd_start_path="`eval echo $sbindir`/nsd"
fi
AC_DEFINE_UNQUOTED(NSD_START_PATH, ["$nsd_start_path"], [Pathname to start nsd from nsd-control])
#
# Determine default chroot directory
#
AC_ARG_WITH([chroot],
AS_HELP_STRING([--with-chroot=dir],[NSD default chroot directory]),
[
chrootdir=$withval
AC_DEFINE_UNQUOTED(CHROOTDIR, ["`eval echo $chrootdir`"], [NSD default chroot directory])
])
AC_SUBST(chrootdir)
#
# Determine the user name to drop privileges to
#
user=nsd
AC_ARG_WITH([user],
AS_HELP_STRING([--with-user=username],[User name or ID to answer the queries with]),
[user=$withval])
AC_SUBST(user)
AC_DEFINE_UNQUOTED(USER, ["$user"], [the user name to drop privileges to])
m4_version_prereq([2.70], [AC_PROG_CC], [AC_PROG_CC_STDC])
AC_PROG_SED
AC_PROG_AWK
AC_PROG_GREP
AC_PROG_EGREP
AC_PROG_LEX([noyywrap])
AC_PROG_YACC
AC_PROG_LN_S
AC_PROG_INSTALL
if test "$LEX" != ":" -a "$LEX" != ""; then
# Solaris provides anemic tools, and they don't offer GNU extensions like
# 'flex -i'. Solaris also does not offer GNU replacements in /usr/gnu/bin.
AC_MSG_CHECKING([whether lex accepts -i])
AS_IF([echo "%%" | $LEX -i -t >/dev/null 2>&1],
[
AC_MSG_RESULT([yes])
],
[
AC_MSG_RESULT([no])
AC_MSG_ERROR([unable to find a lexer that supports -i. If one is available then set the LEX variable])
]
)
# Check if lex defines yy_current_buffer, because 2.4.6 and older use it,
# but later could define it as a macro and then we should not redefine it.
AC_MSG_CHECKING(if lex defines yy_current_buffer)
cat <<EOF >conftest.lex
%%
EOF
$LEX -i -t conftest.lex >> conftest.c 2>/dev/null
if $GREP "^#define yy_current_buffer" conftest.c >/dev/null; then
AC_DEFINE_UNQUOTED(LEX_DEFINES_YY_CURRENT_BUFFER, 1, [If flex defines yy_current_buffer as a macro])
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
rm -f conftest.lex conftest.c
fi
AC_DEFUN([AC_CHECK_FORMAT_ATTRIBUTE],
[AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING(whether the C compiler (${CC-cc}) accepts the "format" attribute)
AC_CACHE_VAL(ac_cv_c_format_attribute,
[ac_cv_c_format_attribute=no
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>
void f (char *format, ...) __attribute__ ((format (printf, 1, 2)));
void (*pf) (char *format, ...) __attribute__ ((format (printf, 1, 2)));
]], [[
f ("%s", "str");
]])],[ac_cv_c_format_attribute="yes"],[ac_cv_c_format_attribute="no"])
])
AC_MSG_RESULT($ac_cv_c_format_attribute)
if test $ac_cv_c_format_attribute = yes; then
AC_DEFINE(HAVE_ATTR_FORMAT, 1, [Whether the C compiler accepts the "format" attribute])
fi
])dnl
AC_DEFUN([AC_CHECK_UNUSED_ATTRIBUTE],
[AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING(whether the C compiler (${CC-cc}) accepts the "unused" attribute)
AC_CACHE_VAL(ac_cv_c_unused_attribute,
[ac_cv_c_unused_attribute=no
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>
void f (char *u __attribute__((unused)));
]], [[
f ("x");
]])],[ac_cv_c_unused_attribute="yes"],[ac_cv_c_unused_attribute="no"])
])
AC_MSG_RESULT($ac_cv_c_unused_attribute)
if test $ac_cv_c_unused_attribute = yes; then
AC_DEFINE(HAVE_ATTR_UNUSED, 1, [Whether the C compiler accepts the "unused" attribute])
fi
])dnl
AC_DEFUN([CHECK_WEAK_ATTRIBUTE],
[AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING(whether the C compiler (${CC-cc}) accepts the "weak" attribute)
AC_CACHE_VAL(ac_cv_c_weak_attribute,
[ac_cv_c_weak_attribute=no
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <stdio.h>
__attribute__((weak)) void f(int x) { printf("%d", x); }
]], [[
f(1);
]])],[ac_cv_c_weak_attribute="yes"],[ac_cv_c_weak_attribute="no"])
])
AC_MSG_RESULT($ac_cv_c_weak_attribute)
if test $ac_cv_c_weak_attribute = yes; then
AC_DEFINE(HAVE_ATTR_WEAK, 1, [Whether the C compiler accepts the "weak" attribute])
AC_DEFINE(ATTR_WEAK, [__attribute__((weak))], [apply the weak attribute to a symbol])
fi
])dnl End of CHECK_WEAK_ATTRIBUTE
AC_DEFUN([CHECK_NORETURN_ATTRIBUTE],
[AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING(whether the C compiler (${CC-cc}) accepts the "noreturn" attribute)
AC_CACHE_VAL(ac_cv_c_noreturn_attribute,
[ac_cv_c_noreturn_attribute=no
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <stdio.h>
__attribute__((noreturn)) void f(int x) { printf("%d", x); }
]], [[
f(1);
]])],[ac_cv_c_noreturn_attribute="yes"],[ac_cv_c_noreturn_attribute="no"])
])
AC_MSG_RESULT($ac_cv_c_noreturn_attribute)
if test $ac_cv_c_noreturn_attribute = yes; then
AC_DEFINE(HAVE_ATTR_NORETURN, 1, [Whether the C compiler accepts the "noreturn" attribute])
AC_DEFINE(ATTR_NORETURN, [__attribute__((__noreturn__))], [apply the noreturn attribute to a function that exits the program])
fi
])dnl End of CHECK_NORETURN_ATTRIBUTE
AC_DEFUN([CHECK_COMPILER_FLAG],
[
AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING(whether $CC supports -$1)
cache=`echo $1 | $SED 'y%.=/+-%___p_%'`
AC_CACHE_VAL(cv_prog_cc_flag_$cache,
[
echo 'void f(void){}' >conftest.c
if test -z "`$CC -$1 -c conftest.c 2>&1`"; then
eval "cv_prog_cc_flag_$cache=yes"
else
eval "cv_prog_cc_flag_$cache=no"
fi
rm -f conftest*
])
if eval "test \"`echo '$cv_prog_cc_flag_'$cache`\" = yes"; then
AC_MSG_RESULT(yes)
:
$2
else
AC_MSG_RESULT(no)
:
$3
fi
])
AC_DEFUN([AC_CHECK_CTIME_R],
[AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING(whether ctime_r works with two arguments)
AC_CACHE_VAL(ac_cv_c_ctime_c,
[ac_cv_c_ctime_c=no
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <time.h>
void testing (void) { time_t clock; char current_time[40]; ctime_r(&clock, current_time); }]], [[
testing();
]])],[ac_cv_c_ctime_c="yes"],[ac_cv_c_ctime_c="no"])
])
AC_MSG_RESULT($ac_cv_c_ctime_c)
if test $ac_cv_c_ctime_c = no; then
CPPFLAGS="$CPPFLAGS -D_POSIX_PTHREAD_SEMANTICS"
fi
])dnl
# Checks for typedefs, structures, and compiler characteristics.
# allow user to override the -g -O2 flags.
if test "x$CFLAGS" = "x" ; then
ACX_CHECK_COMPILER_FLAG(g, [CFLAGS="$CFLAGS -g"])
# we do not use O3 because it causes miscompilations.
ACX_CHECK_COMPILER_FLAG(O2, [CFLAGS="$CFLAGS -O2"])
ACX_CHECK_FLTO
ACX_CHECK_PIE
ACX_CHECK_RELRO_NOW
fi
AC_C_CONST
AC_C_INLINE
AC_TYPE_UID_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_OFF_T
AC_CHECK_FORMAT_ATTRIBUTE
AC_CHECK_UNUSED_ATTRIBUTE
CHECK_WEAK_ATTRIBUTE
CHECK_NORETURN_ATTRIBUTE
ACX_CHECK_MEMCMP_SIGNED
AC_CHECK_CTIME_R
# Checks for libraries.
# Check for SSL, original taken from
# http://www.gnu.org/software/ac-archive/htmldoc/check_ssl.html and
# modified for NSD.
AC_DEFUN([CHECK_SSL], [
AC_ARG_WITH(ssl, AS_HELP_STRING([--with-ssl=pathname],[enable SSL (will check /usr/local/ssl
/usr/lib/ssl /usr/ssl /usr/pkg /usr/sfw /usr/local /usr /usr/local/opt/openssl)]),[
],[
withval="yes"
])
if test x_$withval != x_no; then
AC_MSG_CHECKING(for SSL)
if test -n "$withval"; then
dnl look for openssl install with different version, eg.
dnl in /usr/include/openssl11/openssl/ssl.h
dnl and /usr/lib64/openssl11/libssl.so
dnl with the --with-ssl=/usr/include/openssl11
if test ! -f "$withval/include/openssl/ssl.h" -a -f "$withval/openssl/ssl.h"; then
ssldir="$withval"
found_ssl="yes"
withval=""
ssldir_include="$ssldir"
CPPFLAGS="$CPPFLAGS -I$ssldir_include";
dnl find the libdir
ssldir_lib=`echo $ssldir | sed -e 's/include/lib/'`
if test -f "$ssldir_lib/libssl.a" -o -f "$ssldir_lib/libssl.so"; then
: # found here
else
ssldir_lib=`echo $ssldir | sed -e 's/include/lib64/'`
if test -f "$ssldir_lib/libssl.a" -o -f "$ssldir_lib/libssl.so"; then
: # found here
else
AC_MSG_ERROR([Could not find openssl lib file, $ssldir_lib/libssl.[so,a], pass like "/usr/local" or "/usr/include/openssl11"])
fi
fi
fi
fi
if test x_$withval = x_ -o x_$withval = x_yes; then
withval="/usr/local/ssl /usr/lib/ssl /usr/ssl /usr/pkg /usr/sfw /usr/local /usr /usr/local/opt/openssl"
fi
for dir in $withval; do
ssldir="$dir"
if test -f "$dir/include/openssl/ssl.h"; then
found_ssl="yes";
if test x_$ssldir != x_/usr; then
CPPFLAGS="$CPPFLAGS -I$ssldir/include";
fi
ssldir_include="$ssldir/include"
if test ! -d "$ssldir/lib" -a -d "$ssldir/lib64"; then
ssldir_lib="$ssldir/lib64"
else
ssldir_lib="$ssldir/lib"
fi
break;
fi
done
if test x_$found_ssl != x_yes; then
AC_MSG_ERROR([Cannot find the SSL libraries in $withval])
else
AC_MSG_RESULT([found in $ssldir])
HAVE_SSL=yes
AC_DEFINE_UNQUOTED([HAVE_SSL], [], [Define if you have the SSL libraries installed.])
if test x_$ssldir != x_/usr; then
LDFLAGS="$LDFLAGS -L$ssldir_lib";
fi
if test x_$ssldir = x_/usr/sfw; then
LDFLAGS="$LDFLAGS -R$ssldir_lib";
fi
fi
AC_SUBST(HAVE_SSL)
fi
])dnl
# check for libevent
AC_ARG_WITH(libevent, AS_HELP_STRING([--with-libevent=pathname],[use libevent (will check /usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr /usr/local/opt/libevent or you can specify an explicit path), useful when the zone count is high.]),
[ ],[ withval="yes" ])
if test x_$withval = x_yes -o x_$withval != x_no; then
AC_MSG_CHECKING(for libevent)
if test x_$withval = x_ -o x_$withval = x_yes; then
withval="/usr/local /opt/local /usr/lib /usr/pkg /usr/sfw /usr /usr/local/opt/libevent"
fi
for dir in $withval; do
thedir="$dir"
if test -f "$dir/include/event.h" -o -f "$dir/include/event2/event.h"; then
found_libevent="yes"
dnl assume /usr is in default path.
if test "$thedir" != "/usr"; then
CPPFLAGS="$CPPFLAGS -I$thedir/include"
fi
break;
fi
done
if test x_$found_libevent != x_yes; then
if test -f "$dir/event.h" -a \( -f "$dir/libevent.la" -o -f "$dir/libev.la" \) ; then
# libevent source directory
AC_MSG_RESULT(found in $thedir)
CPPFLAGS="$CPPFLAGS -I$thedir -I$thedir/include"
# remove evdns from linking
ev_files_o=`ls $thedir/*.o | $GREP -v evdns\.o | $GREP -v bufferevent_openssl\.o`
cp $ev_files_o .
LDFLAGS="$ev_files_o $LDFLAGS -lm"
else
AC_MSG_ERROR([Cannot find the libevent library.
You can restart ./configure --with-libevent=no to use a builtin alternative.])
fi
else
AC_MSG_RESULT(found in $thedir)
dnl if event2 exists and no event lib in dir itself, use subdir
if test ! -f $thedir/lib/libevent.a -a ! -f $thedir/lib/libevent.so -a -d "$thedir/lib/event2"; then
LDFLAGS="$LDFLAGS -L$thedir/lib/event2"
ACX_RUNTIME_PATH_ADD([$thedir/lib/event2])
else
dnl assume /usr is in default path, do not add "".
if test "$thedir" != "/usr" -a "$thedir" != ""; then
LDFLAGS="$LDFLAGS -L$thedir/lib"
ACX_RUNTIME_PATH_ADD([$thedir/lib])
fi
fi
fi
# check for library used by libevent after 1.3c
AC_SEARCH_LIBS([clock_gettime], [rt])
# is the event.h header libev or libevent?
AC_CHECK_HEADERS([event.h],,, [AC_INCLUDES_DEFAULT])
AC_CHECK_DECL(EV_VERSION_MAJOR, [
AC_SEARCH_LIBS(event_set, [ev])
],[
AC_SEARCH_LIBS(event_set, [event])
],[AC_INCLUDES_DEFAULT
#include <event.h>
])
AC_CHECK_FUNCS([event_base_free]) # only in libevent 1.2 and later
AC_CHECK_FUNCS([event_base_once]) # only in libevent 1.4.1 and later
AC_CHECK_FUNCS([event_base_new]) # only in libevent 1.4.1 and later
AC_CHECK_FUNCS([event_base_get_method]) # only in libevent 1.4.3 and later
AC_CHECK_FUNCS([ev_loop]) # only in libev. (tested on 3.51)
AC_CHECK_FUNCS([ev_default_loop]) # only in libev. (tested on 4.00)
else
AC_DEFINE(USE_MINI_EVENT, 1, [Define if you want to use internal select based events])
fi
# Checks for header files.
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS([time.h arpa/inet.h signal.h string.h strings.h fcntl.h limits.h netinet/in.h netinet/tcp.h stddef.h sys/param.h sys/socket.h sys/un.h syslog.h unistd.h sys/select.h stdarg.h stdint.h netdb.h sys/bitypes.h tcpd.h glob.h grp.h endian.h sys/random.h ifaddrs.h],,, [AC_INCLUDES_DEFAULT])
AC_DEFUN([CHECK_VALIST_DEF],
[
AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING(for double definition of struct va_list)
AC_CACHE_VAL(ac_cv_c_va_list_def,
[
cat >conftest.c <<EOF
#include <stdio.h>
#include <stdarg.h>
int foo(void);
EOF
if test -z "`$CC -Werror -D_XOPEN_SOURCE=600 -c conftest.c 2>&1`"; then
eval "ac_cv_c_va_list_def=no"
else
eval "ac_cv_c_va_list_def=yes"
fi
rm -f conftest*
])
if test $ac_cv_c_va_list_def = yes; then
AC_MSG_RESULT(yes)
:
AC_DEFINE_UNQUOTED([HAVE_VA_LIST_DOUBLE_DEF], [], [Define this if you have double va_list definitions.])
else
AC_MSG_RESULT(no)
:
fi
])
CHECK_VALIST_DEF
AC_DEFUN([AC_CHECK_STRPTIME],
[AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING(whether strptime needs defines)
AC_CACHE_VAL(ac_cv_c_strptime_needs_defs,
[
cat >conftest.c <<EOF
#include <time.h>
int testing (void) { struct tm t; const char *timestr="201201"; return strptime(timestr, "%Y%m", &t) != 0; }
EOF
if test -z "`$CC -Wall -Werror -c conftest.c 2>&1`"; then
eval "ac_cv_c_strptime_needs_defs=no"
else
eval "ac_cv_c_strptime_needs_defs=yes"
fi
rm -f conftest*
])
AC_MSG_RESULT($ac_cv_c_strptime_needs_defs)
if test $ac_cv_c_strptime_needs_defs = yes; then
AC_DEFINE_UNQUOTED([STRPTIME_NEEDS_DEFINES], 1, [strptime is available from time.h with some defines.])
fi
])dnl
AC_CHECK_STRPTIME
# check wether strptime also works
AC_DEFUN([AC_CHECK_STRPTIME_WORKS],
[AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING(whether strptime works)
if test c${cross_compiling} = cno; then
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#define _XOPEN_SOURCE 600
#include <time.h>
int main(void) { struct tm tm; char *res;
res = strptime("20070207111842", "%Y%m%d%H%M%S", &tm);
if (!res) return 1; return 0; }
]])] , [eval "ac_cv_c_strptime_works=yes"], [eval "ac_cv_c_strptime_works=no"],
[eval "ac_cv_c_strptime_works=maybe"])
else
eval "ac_cv_c_strptime_works=maybe"
fi
AC_MSG_RESULT($ac_cv_c_strptime_works)
if test $ac_cv_c_strptime_works = no; then
AC_LIBOBJ(strptime)
else
AC_DEFINE_UNQUOTED([STRPTIME_WORKS], 1, [use default strptime.])
fi
])dnl
AC_SEARCH_LIBS(inet_pton, [nsl])
AC_SEARCH_LIBS(socket, [socket])
AC_CHECK_STRPTIME_WORKS
ACX_CHECK_NONBLOCKING_BROKEN
ACX_MKDIR_ONE_ARG
# set -I. and -Isrcdir
if test -n "$CPPFLAGS"; then
CPPFLAGS="$CPPFLAGS -I."
else
CPPFLAGS="-I."
fi
if test "$srcdir" != "."; then
CPPFLAGS="$CPPFLAGS -I$srcdir"
if test -f $srcdir/config.h; then
AC_MSG_ERROR([$srcdir/config.h is in the way, please remove it])
fi
fi
dnl LIBGTOP_CHECK_TYPE
dnl Stolen from Gnome's anjuta
dnl Improved version of AC_CHECK_TYPE which takes into account
dnl that we need to #include some other header files on some
dnl systems to get some types.
dnl AC_LIBGTOP_CHECK_TYPE(TYPE, DEFAULT)
AC_DEFUN([AC_LIBGTOP_CHECK_TYPE],
[AC_MSG_CHECKING(for $1)
AC_CACHE_VAL(ac_cv_type_$1,
[AC_EGREP_CPP(dnl
changequote(<<,>>)dnl
<<(^|[^a-zA-Z_0-9])$1[^a-zA-Z_0-9]>>dnl
changequote([,]), [
#include <sys/types.h>
#include <stdlib.h>
#include <stddef.h>
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif
/* For Tru64 */
#ifdef HAVE_SYS_BITYPES_H
#include <sys/bitypes.h>
#endif
], ac_cv_type_$1=yes, ac_cv_type_$1=no)])dnl
AC_MSG_RESULT($ac_cv_type_$1)
if test $ac_cv_type_$1 = no; then
AC_DEFINE($1, $2, Define "$1" to "$2" if "$1" is missing)
fi
])
AC_LIBGTOP_CHECK_TYPE(int8_t, char)
AC_LIBGTOP_CHECK_TYPE(int16_t, short)
AC_LIBGTOP_CHECK_TYPE(int32_t, int)
AC_LIBGTOP_CHECK_TYPE(int64_t, long long)
AC_LIBGTOP_CHECK_TYPE(uint8_t, unsigned char)
AC_LIBGTOP_CHECK_TYPE(uint16_t, unsigned short)
AC_LIBGTOP_CHECK_TYPE(uint32_t, unsigned int)
AC_LIBGTOP_CHECK_TYPE(uint64_t, unsigned long long)
AC_LIBGTOP_CHECK_TYPE(socklen_t, int)
AC_LIBGTOP_CHECK_TYPE(sig_atomic_t, int)
AC_LIBGTOP_CHECK_TYPE(ssize_t, int)
AC_LIBGTOP_CHECK_TYPE(suseconds_t, time_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])
ACX_CHECK_SS_FAMILY
AC_CHECK_MEMBERS([struct stat.st_mtimensec, struct stat.st_mtim.tv_nsec])
AC_CHECK_MEMBERS([struct sockaddr_un.sun_len],,,[
AC_INCLUDES_DEFAULT
#ifdef HAVE_SYS_UN_H
#include <sys/un.h>
#endif
])
# Checks for library functions.
AC_FUNC_CHOWN
AC_FUNC_FORK
AC_FUNC_MALLOC
AC_DEFINE(RETSIGTYPE,void,[Return type of signal handlers, but autoconf 2.70 says 'your code may safely assume C89 semantics that RETSIGTYPE is void.'])
AC_FUNC_FSEEKO
AC_SYS_LARGEFILE
AC_CHECK_SIZEOF(void*)
AC_CHECK_SIZEOF(off_t)
AC_CHECK_FUNCS([getrandom arc4random arc4random_uniform])
AC_SEARCH_LIBS([setusercontext],[util],[AC_CHECK_HEADERS([login_cap.h],,, [AC_INCLUDES_DEFAULT])])
AC_CHECK_FUNCS([tzset alarm chroot dup2 endpwent gethostname memset memcpy pwrite socket strcasecmp strchr strdup strerror strncasecmp strtol writev getaddrinfo getnameinfo freeaddrinfo gai_strerror sigaction sigprocmask strptime strftime localtime_r setusercontext glob initgroups setresuid setreuid setresgid setregid getpwnam mmap ppoll clock_gettime accept4 getifaddrs])
AC_CHECK_TYPE([struct mmsghdr], AC_DEFINE(HAVE_MMSGHDR, 1, [If sys/socket.h has a struct mmsghdr.]), [], [
AC_INCLUDES_DEFAULT
#include <sys/socket.h>
])
AC_ARG_ENABLE(recvmmsg, AS_HELP_STRING([--enable-recvmmsg],[Enable recvmmsg and sendmmsg compilation, faster but some kernel versions may have implementation problems for IPv6]))
case "$enable_recvmmsg" in
yes)
AC_CHECK_FUNC([recvmmsg], [
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/socket.h>
#include <errno.h>
int main(void)
{
int s = socket(AF_INET, SOCK_DGRAM, 0);
int r = recvmmsg(s, 0, 0, 0, 0) == -1 && errno == ENOSYS;
close(s);
return r;
}
]])], [
AC_DEFINE([HAVE_RECVMMSG], [1], [Define if recvmmsg is implemented])], [
], [
AC_DEFINE([HAVE_RECVMMSG], [1], [Define if recvmmsg exists])]
)])
AC_CHECK_FUNC([sendmmsg], [
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/socket.h>
#include <errno.h>
int main(void)
{
int s = socket(AF_INET, SOCK_DGRAM, 0);
int r = sendmmsg(s, 0, 0, 0) == -1 && errno == ENOSYS;
close(s);
return r;
}
]])], [
AC_DEFINE([HAVE_SENDMMSG], [1], [Define if sendmmsg is implemented])], [
], [
AC_DEFINE([HAVE_SENDMMSG], [1], [Define if sendmmsg exists])]
)])
;;
no|*)
;;
esac
# check if setreuid en setregid fail, on MacOSX10.4(darwin8).
if echo $target_os | $GREP -i darwin8 > /dev/null; then
AC_DEFINE(DARWIN_BROKEN_SETREUID, 1, [Define this if on macOSX10.4-darwin8 and setreuid and setregid do not work])
fi
# GNU HURD needs _GNU_SOURCE defined for cpu affinity gear
if echo $target_os | $EGREP -i 'linux|hurd' > /dev/null; then
AC_DEFINE([_GNU_SOURCE, 1, [Define this if on Linux or GNU Hurd for cpu affinity interface]])
fi
# see comment on _GNU_SOURCE above
AC_CHECK_HEADERS([sched.h sys/cpuset.h],,, [AC_INCLUDES_DEFAULT])
# Check for cpu_set_t (Linux) and cpuset_t (FreeBSD and NetBSD)
AC_CHECK_TYPES([cpu_set_t, cpuset_t, cpuid_t],,,[
AC_INCLUDES_DEFAULT
#if HAVE_SCHED_H
# include <sched.h>
#endif
#if HAVE_SYS_CPUSET_H
# include <sys/cpuset.h>
#endif
])
AC_DEFUN([AC_CHECK_CPU_OR],
[AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING(whether CPU_OR works with three arguments)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#ifdef HAVE_SCHED_H
# include <sched.h>
#endif
#ifdef HAVE_SYS_CPUSET_H
# include <sys/cpuset.h>
#endif
#include <string.h>
#ifdef HAVE_CPUSET_T
#define MY_CPUSET_TYPE cpuset_t
#endif
#ifdef HAVE_CPU_SET_T
#define MY_CPUSET_TYPE cpu_set_t
#endif
void testing (void) {
MY_CPUSET_TYPE a, b;
memset(&a, 0, sizeof(a));
memset(&b, 0, sizeof(b));
CPU_OR(&a, &a, &b);
}]], [[
testing();
]])],[
AC_MSG_RESULT(yes)
AC_DEFINE([CPU_OR_THREE_ARGS], 1, [number of arguments for CPU_OR is three])
],[
AC_MSG_RESULT(no)
])])
AS_IF([test x"$ac_cv_type_cpuset_t" = xyes -o x"$ac_cv_type_cpu_set_t" = xyes ],[
AC_CHECK_FUNC(cpuset_create)
AC_CHECK_FUNC(cpuset_destroy)
AC_CHECK_FUNC(cpuset_zero)
AC_CHECK_FUNC(cpuset_set)
AC_CHECK_FUNC(cpuset_clr)
AC_CHECK_FUNC(cpuset_isset)
AC_CHECK_FUNC(cpuset_size)
AC_LIBOBJ(cpuset)
AC_CHECK_FUNCS([sysconf])
AC_CHECK_CPU_OR
])
#
# sched_setaffinity must be checked using proper includes.
# also needs _GNU_SOURCE on Linux and Hurd; see above.
# also see https://github.com/NLnetLabs/nsd/issues/82.
#
AC_MSG_CHECKING(for sched_setaffinity)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[
#ifdef HAVE_SCHED_H
# include <sched.h>
#endif
#ifdef HAVE_SYS_CPUSET_H
#include <sys/cpuset.h>
#endif
#ifdef HAVE_CPUSET_T
#define MY_CPUSET_TYPE cpuset_t
#endif
#ifdef HAVE_CPU_SET_T
#define MY_CPUSET_TYPE cpu_set_t
#endif
void testing (void) {
MY_CPUSET_TYPE set;
CPU_ZERO(&set);
(void)sched_setaffinity(-1, sizeof(set), &set);
}
]])],
[ AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SCHED_SETAFFINITY, 1, [Define this if sched_setaffinity is available])],
[ AC_MSG_RESULT(no)])
#
# Checking for missing functions we can replace
#
AC_REPLACE_FUNCS(basename)
AC_REPLACE_FUNCS(inet_aton)
AC_REPLACE_FUNCS(inet_pton)
AC_REPLACE_FUNCS(inet_ntop)
AC_REPLACE_FUNCS(snprintf)
AC_REPLACE_FUNCS(strlcat)
AC_REPLACE_FUNCS(strlcpy)
AC_REPLACE_FUNCS(strptime)
AC_REPLACE_FUNCS(b64_pton)
AC_REPLACE_FUNCS(b64_ntop)
AC_REPLACE_FUNCS(pselect)
AC_REPLACE_FUNCS(memmove)
AC_REPLACE_FUNCS(setproctitle)
AC_REPLACE_FUNCS(explicit_bzero)
AC_MSG_CHECKING([for reallocarray])
AC_LINK_IFELSE([AC_LANG_SOURCE(
[[
#ifndef _OPENBSD_SOURCE
#define _OPENBSD_SOURCE 1
#endif
]]
AC_INCLUDES_DEFAULT
[[
#include <stdlib.h>
int main(void) {
void* p = reallocarray(NULL, 10, 100);
free(p);
return 0;
}
]])], [AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_REALLOCARRAY, 1, [If we have reallocarray(3)])
AC_CHECK_DECLS([reallocarray], [], [
AC_DEFINE(REALLOCARRAY_NEEDS_DEFINES, 1, [If reallocarray needs defines to appear in the headers])
], [
AC_INCLUDES_DEFAULT
#include <stdlib.h>
])
], [
AC_MSG_RESULT(no)
AC_LIBOBJ(reallocarray)
])
AC_MSG_CHECKING(for pselect prototype in sys/select.h)
AC_EGREP_HEADER([[^a-zA-Z_]*pselect[^a-zA-Z_]], sys/select.h, AC_DEFINE(HAVE_PSELECT_PROTO, 1,
[if sys/select.h provides pselect prototype]) AC_MSG_RESULT(yes), AC_MSG_RESULT(no))
AC_MSG_CHECKING(for ctime_r prototype in time.h)
AC_EGREP_HEADER([[^a-zA-Z_]*ctime_r[^a-zA-Z_]], time.h, AC_DEFINE(HAVE_CTIME_R_PROTO, 1,
[if time.h provides ctime_r prototype]) AC_MSG_RESULT(yes), AC_MSG_RESULT(no))
AC_CHECK_TYPE([struct timespec], AC_DEFINE(HAVE_STRUCT_TIMESPEC, 1, [If time.h has a struct timespec (for pselect).]), [], [
AC_INCLUDES_DEFAULT
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif
#ifdef HAVE_TIME_H
#include <time.h>
#endif
])
dnl
dnl Some random defines's
dnl
AC_DEFINE_UNQUOTED([IDENTITY], ["unidentified server"], [Define to the default nsd identity.])
AC_DEFINE_UNQUOTED([VERSION], [PACKAGE_STRING], [Define to the NSD version to answer version.server query.])
AC_DEFINE_UNQUOTED([TCP_BACKLOG], [256], [Define to the backlog to be used with listen.])
AC_DEFINE_UNQUOTED([TCP_PORT], ["53"], [Define to the default tcp port.])
AC_DEFINE_UNQUOTED([TCP_MAX_MESSAGE_LEN], [65535], [Define to the default maximum message length.])
AC_DEFINE_UNQUOTED([UDP_PORT], ["53"], [Define to the default udp port.])
AC_DEFINE_UNQUOTED([UDP_MAX_MESSAGE_LEN], [512], [Define to the default maximum udp message length.])
AC_DEFINE_UNQUOTED([EDNS_MAX_MESSAGE_LEN], [1232], [Define to the default maximum message length with EDNS.])
AC_DEFINE_UNQUOTED([TLS_PORT], ["853"], [Define to the default DNS over TLS port.])
AC_DEFINE_UNQUOTED([MAXSYSLOGMSGLEN], [512], [Define to the maximum message length to pass to syslog.])
AC_DEFINE_UNQUOTED([NSD_CONTROL_PORT], [8952], [Define to the default nsd-control port.])
AC_DEFINE_UNQUOTED([NSD_CONTROL_VERSION], [1], [Define to nsd-control proto version.])
AC_DEFINE_UNQUOTED([VERIFY_PORT], ["5347"], [Define to the default zone verification udp port.])
dnl
dnl Determine the syslog facility to use
dnl
facility=LOG_DAEMON
AC_ARG_WITH([facility],
AS_HELP_STRING([--with-facility=name],[Syslog default facility (LOG_DAEMON)]),
[facility=$withval])
AC_DEFINE_UNQUOTED([FACILITY], $facility, [Define to the default facility for syslog.])
dnl
dnl Determine the default tcp timeout
dnl
tcp_timeout=120
AC_ARG_WITH([tcp_timeout],
AS_HELP_STRING([--with-tcp-timeout=number],[Limit the default tcp timeout]),
[tcp_timeout=$withval])
AC_DEFINE_UNQUOTED([TCP_TIMEOUT], $tcp_timeout, [Define to the default tcp timeout.])
dnl
dnl Features
dnl
AC_ARG_ENABLE(root-server, AS_HELP_STRING([--enable-root-server],[Configure NSD as a root server (obsolete)]))
AC_ARG_ENABLE(ipv6, AS_HELP_STRING([--disable-ipv6],[Disables IPv6 support]))
case "$enable_ipv6" in
no)
;;
yes|*)
AC_DEFINE_UNQUOTED([INET6], [], [Define this to enable IPv6 support.])
;;
esac
AC_ARG_ENABLE(bind8-stats, AS_HELP_STRING([--enable-bind8-stats],[Enables BIND8 like NSTATS & XSTATS and statistics in nsd-control]))
case "$enable_bind8_stats" in
yes|'')
AC_DEFINE_UNQUOTED([BIND8_STATS], [], [Define this to enable BIND8 like NSTATS & XSTATS.])
;;
no|*)
;;
esac
AC_ARG_ENABLE(zone-stats, AS_HELP_STRING([--enable-zone-stats],[Enable per-zone statistics gathering (needs --enable-bind8-stats)]))
case "$enable_zone_stats" in
yes)
AC_DEFINE_UNQUOTED([USE_ZONE_STATS], [], [Define this to enable per-zone statistics gathering.])
AC_DEFINE_UNQUOTED([BIND8_STATS], [], [Define this to enable BIND8 like NSTATS & XSTATS.])
;;
no|''|*)
;;
esac
AC_ARG_ENABLE(checking, AS_HELP_STRING([--enable-checking],[Enable internal runtime checks]))
case "$enable_checking" in
yes)
CHECK_COMPILER_FLAG(W, [ CFLAGS="$CFLAGS -W" ])
CHECK_COMPILER_FLAG(Wall, [ CFLAGS="$CFLAGS -Wall" ])
CHECK_COMPILER_FLAG(Wextra, [ CFLAGS="$CFLAGS -Wextra" ])
CHECK_COMPILER_FLAG(Wdeclaration-after-statement, [ CFLAGS="$CFLAGS -Wdeclaration-after-statement" ])
;;
no|*)
AC_DEFINE([NDEBUG], [], [Undefine this to enable internal runtime checks.])
;;
esac
AC_ARG_ENABLE(log-role, AS_HELP_STRING([--enable-log-role],[Shows the role of processes in the logfile (enable this only for debugging purposes)]))
case "$enable_log_role" in
yes)
AC_DEFINE_UNQUOTED([USE_LOG_PROCESS_ROLE], [], [Define this to show the role of processes in the logfile for debugging purposes.])
;;
no|*)
;;
esac
AC_ARG_ENABLE(memclean, AS_HELP_STRING([--enable-memclean],[Cleanup memory (at exit) for eg. valgrind, memcheck]))
if test "$enable_memclean" = "yes"; then AC_DEFINE_UNQUOTED([MEMCLEAN], [1], [Define this to cleanup memory at exit (eg. for valgrind, etc.)])
fi
AC_ARG_ENABLE(ratelimit, AS_HELP_STRING([--enable-ratelimit],[Enable rate limiting]))
case "$enable_ratelimit" in
yes)
AC_DEFINE_UNQUOTED([RATELIMIT], [], [Define this to enable rate limiting.])
dnl causes awk to not match the exclusion start marker.