File: configure.in

package info (click to toggle)
bind9 1:9.9.5.dfsg-9
  • links: PTS, VCS
  • area: main
  • in suites: jessie-kfreebsd
  • size: 42,976 kB
  • sloc: ansic: 313,014; sh: 53,890; cpp: 19,217; xml: 18,756; perl: 6,769; makefile: 5,043; tcl: 842; awk: 236; python: 129
file content (711 lines) | stat: -rw-r--r-- 20,128 bytes parent folder | download | duplicates (6)
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
dnl $Id: configure.in,v 1.1 2003/06/04 00:25:25 marka Exp $
dnl Process this file with autoconf to produce a configure script.
dnl
dnl Copyright (c) 2000 Japan Network Information Center.  All rights reserved.
dnl  
dnl By using this file, you agree to the terms and conditions set forth bellow.
dnl 
dnl 			LICENSE TERMS AND CONDITIONS 
dnl 
dnl The following License Terms and Conditions apply, unless a different
dnl license is obtained from Japan Network Information Center ("JPNIC"),
dnl a Japanese association, Kokusai-Kougyou-Kanda Bldg 6F, 2-3-4 Uchi-Kanda,
dnl Chiyoda-ku, Tokyo 101-0047, Japan.
dnl 
dnl 1. Use, Modification and Redistribution (including distribution of any
dnl    modified or derived work) in source and/or binary forms is permitted
dnl    under this License Terms and Conditions.
dnl 
dnl 2. Redistribution of source code must retain the copyright notices as they
dnl    appear in each source code file, this License Terms and Conditions.
dnl 
dnl 3. Redistribution in binary form must reproduce the Copyright Notice,
dnl    this License Terms and Conditions, in the documentation and/or other
dnl    materials provided with the distribution.  For the purposes of binary
dnl    distribution the "Copyright Notice" refers to the following language:
dnl    "Copyright (c) 2000-2002 Japan Network Information Center.  All rights reserved."
dnl 
dnl 4. The name of JPNIC may not be used to endorse or promote products
dnl    derived from this Software without specific prior written approval of
dnl    JPNIC.
dnl 
dnl 5. Disclaimer/Limitation of Liability: THIS SOFTWARE IS PROVIDED BY JPNIC
dnl    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
dnl    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
dnl    PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL JPNIC BE LIABLE
dnl    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
dnl    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
dnl    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
dnl    BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
dnl    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
dnl    OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
dnl    ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

AC_INIT(include/idn/converter.h)

AC_CANONICAL_HOST

debug=no
AC_ARG_ENABLE(debug,
[  --enable-debug          enable debug codes [default=no]],
	debug=$enableval)
case "$debug" in
yes)
    CFLAGS="$CFLAGS -DDEBUG"
    ;;
esac

mdnkit_compat=no
COMPAT_TRUE="#"
COMPAT_FALSE=
AC_ARG_ENABLE(mdnkit-compat,
[  --enable-mdnkit-compat  enable mDNkit compatibility mode [default=no]],
	mdnkit_compat=$enableval)
case "$mdnkit_compat" in
yes)
    COMPAT_TRUE=
    COMPAT_FALSE="#"
    AC_DEFINE(ENABLE_MDNKIT_COMPAT, 1,
	[Define if --enable-mdnkit-compat is specified])
    ;;
no)
    ;;
*)
    AC_MSG_ERROR([You must specify yes or no to --enable-runidn option.])
    ;;
esac
AC_SUBST(COMPAT_TRUE)
AC_SUBST(COMPAT_FALSE)

extraace=no
AC_ARG_ENABLE(extra-ace,
[  --enable-extra-ace      enable additional ACE converters. [default=no]],
	extraace=$enableval)
case "$extraace" in
no)
    ;;
yes)
    AC_DEFINE(IDN_EXTRA_ACE, 1,
	[Define if you want additional ACE converters compiled in.])
    ;;
*)
    AC_MSG_ERROR([You must specify yes or no to --enable-extra-ace option.])
    ;;
esac

UTF8_NAME=no
AC_ARG_WITH(utf8,
[  --with-utf8=NAME        codeset name for UTF-8 encoding [UTF-8]],
	UTF8_NAME=$withval)
case "$UTF8_NAME" in
no)
    UTF8_NAME=UTF-8
    ;;
yes)
    AC_MSG_ERROR([You must specify NAME to --with-utf8 option.])
    ;;
*)
    AC_DEFINE_UNQUOTED(IDN_UTF8_ENCODING_NAME, "$UTF8_NAME",
	[Define if your iconv() does not accept "UTF-8" as the codeset name for utf-8.])
    ;;
esac
AC_SUBST(UTF8_NAME)

liteonly=no
LITEONLY_TRUE="#"
LITEONLY_FALSE=
AC_ARG_ENABLE(liteonly,
[  --enable-liteonly       compile and install lite library only [default=no]],
	liteonly=$enableval)
case "$liteonly" in
no)
    ;;
yes)
    if test "$install_runidn" = yes ; then
	AC_MSG_ERROR([you can't set value \"yes\" to --enable-runidn and --enable-liteonly simultaneously, because runidn requires iconv support of generic libidnkit.])
    fi
    LITEONLY_TRUE=
    LITEONLY_FALSE="#"
    ;;
*)
    AC_MSG_ERROR([You must specify yes or no to --enable-liteonly option.])
    ;;
esac
AC_SUBST(LITEONLY_TRUE)
AC_SUBST(LITEONLY_FALSE)

install_runidn=no
RUNIDN_TRUE="#"
RUNIDN_FALSE=
AC_ARG_ENABLE(runidn,
[  --enable-runidn         compile and install runidn [default=no]],
	install_runidn=$enableval)
case "$install_runidn" in
no)
    ;;
yes)
    if test "$liteonly" = yes ; then
	AC_MSG_ERROR([you can't set value \"yes\" to --enable-runidn and --enable-liteonly simultaneously, because runidn requires iconv support of generic libidnkit.])
    fi
    RUNIDN_TRUE=
    RUNIDN_FALSE="#"
    ;;
*)
    AC_MSG_ERROR([You must specify yes or no to --enable-runidn option.])
    ;;
esac
AC_SUBST(RUNIDN_TRUE)
AC_SUBST(RUNIDN_FALSE)

ICONVINC=
ICONVLIB=

libiconv=unspec
AC_ARG_WITH(libiconv,
[  --with-libiconv=IPREFIX  GNU libiconv are installed in IPREFIX [PREFIX]],
	libiconv=$withval)
case "$libiconv" in
unspec)
    ;;
no)
    ICONVINC=
    ICONVLIB=
    ;;
yes)
    if test "$liteonly" = yes ; then
	AC_MSG_ERROR([you can't set iconv options at all when you set value \"yes\" to --enable-liteonly, because lite library does not have iconv support.])
    fi
    if test X$prefix = XNONE ; then
	libiconv=$ac_default_prefix
    else
	libiconv=$prefix
    fi
    ICONVINC="-I$libiconv/include"
    ICONVLIB="-L$libiconv/lib -R$libiconv/lib -liconv"
    ;;
*)
    if test "$liteonly" = yes ; then
	AC_MSG_ERROR([you can't set iconv options at all when you set value \"yes\" to --enable-liteonly, because lite library does not have iconv support.])
    fi
    ICONVINC="-I$libiconv/include"
    ICONVLIB="-L$libiconv/lib -R$libiconv/lib -liconv"
    ;;
esac

iconv_include=unspec
AC_ARG_WITH(iconv-include,
[  --with-iconv-include=DIR  iconv include files are in DIR []],
	iconv_include=$withval)
case "$iconv_include" in
unspec)
    ;;
no)
    ICONVINC=
    ;;
yes)
    if test "$liteonly" = yes ; then
	AC_MSG_ERROR([you can't set iconv options at all when you set value \"yes\" to --enable-liteonly, because lite library does not have iconv support.])
    fi
    AC_MSG_WARN([You must supply DIR to --with-iconv-include option.
  Ignored.])
    ICONVINC=
    ;;
*)
    if test "$liteonly" = yes ; then
	AC_MSG_ERROR([you can't set iconv options at all when you set value \"yes\" to --enable-liteonly, because lite library does not have iconv support.])
    fi
    ICONVINC="-I$iconv_include"
    ;;
esac

if test "X$ICONVINC" != X ; then
    iconv_include="`echo X$ICONVINC | sed -e 's/^X-I//'`"
    if test ! -f "$iconv_include/iconv.h" ; then
	AC_MSG_ERROR([iconv.h doesn't exist in $iconv_include])
    fi
fi

AC_SUBST(ICONVINC)

iconv=unspec
AC_ARG_WITH(iconv,
[  --with-iconv=LIB        special library for iconv []],
	iconv=$withval)
case "$iconv" in
unspec)
    ;;
no)
    ICONVLIB=
    ;;
yes)
    if test "$liteonly" = yes ; then
	AC_MSG_ERROR([you can't set iconv options at all when you set value \"yes\" to --enable-liteonly, because lite library does not have iconv support.])
    fi
    AC_MSG_WARN([You must supply LIB to --with-iconv option.
  -liconv is assumed.])
    ICONVLIB=-liconv
    ;;
*)
    if test "$liteonly" = yes ; then
	AC_MSG_ERROR([you can't set iconv options at all when you set value \"yes\" to --enable-liteonly, because lite library does not have iconv support.])
    fi
    ICONVLIB=$iconv
    ;;
esac
AC_SUBST(ICONVLIB)

AC_ARG_WITH(iconv-sofile,
[  --with-iconv-sofile=PATH  shared library file for libiconv []],
	iconv_file=$withval, iconv_file=guess)
ICONVSOFILE=
case "$iconv_file" in
no)
    ICONVSOFILE=none
    ;;
yes)
    if test "$liteonly" = yes ; then
	AC_MSG_ERROR([you can't set iconv options at all when you set value \"yes\" to --enable-liteonly, because lite library does not have iconv support.])
    fi
    AC_MSG_ERROR([You must supply PATH to --with-iconv-sofile option.])
    ;;
guess)
    if test "$liteonly" != yes ; then
	if test "$ICONVLIB" = ""; then
	    ICONVSOFILE=none
	else
	    AC_MSG_CHECKING(pathname of iconv shared library)
	    ic_libdir=
	    ic_libname=
	    case "$host" in
	    *-hpux*)
		SO=sl
		;;
	    *)
		SO=so
		;;
	    esac
	    for arg in $ICONVLIB; do
		case "$arg" in
		-L*) ic_libdir="$ic_libdir `echo $arg | sed s/-L//`" ;;
		-l*) ic_libname=`echo $arg | sed s/-l//` ;;
		/*.$SO*) ICONVSOFILE=$arg ;;
		esac
	    done
	    if test "$ICONVSOFILE" = ""; then
		if test "$ic_libname" = ""; then
		    AC_MSG_RESULT(unknown)
		    AC_MSG_WARN([use --with-iconv-sofile for specifying iconv shared library file])
		    ICONVSOFILE=none
		else
		    if test "$ic_libdir" = ""; then
			# Standard (and semi-standard) library directories
			ic_libdir="/lib /usr/lib /usr/local/lib"
		    fi
		    for dir in $ic_libdir; do
			ICONVSOFILE=`ls -r $dir/lib$ic_libname.$SO* 2>/dev/null | head -1`
			if test "$ICONVSOFILE" != ""; then
			    break
			fi
		    done
		    if test "$ICONVSOFILE" != ""; then
			AC_MSG_RESULT($ICONVSOFILE)
		    else
			AC_MSG_RESULT(unknown)
			AC_MSG_WARN([use --with-iconv-sofile for specifying iconv shared library file])
			ICONVSOFILE=none
		    fi
		fi
	    fi
	fi
    else
	ICONVSOFILE=none
    fi
    ;;
*)
    if test "$liteonly" = yes ; then
	AC_MSG_ERROR([you can't set iconv options at all when you set value \"yes\" to --enable-liteonly, because lite library does not have iconv support.])
    fi
    ICONVSOFILE=$iconv_file
    ;;
esac
AC_SUBST(ICONVSOFILE)

dnl Figure out preload stuff.
PRELOAD_VAR="LD_PRELOAD"
PRELOAD_SEP=":"
PRELOAD_LAST=""
case "$host" in
*-solaris*)
    PRELOAD_SEP=" "
    ;;
*-linux*)
    PRELOAD_SEP=" "
    ;;
*-osf*)
    PRELOAD_VAR="_RLD_LIST"
    PRELOAD_LAST=":DEFAULT"
    ;;
*-netbsd*)
    if test -x /usr/bin/file -a -x /usr/bin/grep ; then
        case "`/usr/bin/file /usr/bin/grep`" in
	*ELF*)
	    PRELOAD_SEP=" "
	    ;;
	esac
    fi
    ;;
esac

AC_SUBST(PRELOAD_VAR)
AC_SUBST(PRELOAD_SEP)
AC_SUBST(PRELOAD_LAST)

dnl Checks for standard tools.
AC_PROG_CC
AC_PROG_INSTALL
AM_PROG_LIBTOOL

AC_PATH_PROGS(PERL, perl, perl)

dnl Checks for header files.
AC_CHECK_HEADERS(unistd.h locale.h langinfo.h pwd.h)
if test "$install_runidn" = yes ; then
    AC_CHECK_HEADERS(dlfcn.h)
fi

saved_CPPFLAGS=$CPPFLAGS
CPPFLAGS="$CPPFLAGS $ICONVINC"
if test "$liteonly" != yes ; then
    AC_CHECK_HEADER(iconv.h, , [AC_MSG_ERROR([iconv.h doesn't exist])])
fi
CPPFLAGS=$saved_CPPFLAGS

dnl Checks for data types.
AC_TYPE_UID_T
dnl for dnsproxy.
AC_CHECK_TYPE(BOOL, int)

dnl Checks for libraries.
if test "$install_runidn" = yes ; then
    AC_CHECK_LIB(socket, socket)
    AC_CHECK_LIB(nsl, inet_addr)
    AC_CHECK_LIB(dl, dlopen, [
	LIBS="-ldl $LIBS"
	LIBDL="-ldl"
	AC_DEFINE(HAVE_LIBDL, 1, [Define if you have the dl library (-ldl).])
	AC_SUBST(LIBDL)
    ])
fi

dnl Checks for library functions.
AC_CHECK_FUNCS(vsnprintf setvbuf setlocale nl_langinfo memmove bcopy setenv \
    unsetenv)
if test "$install_runidn" = yes ; then
    AC_CHECK_FUNCS(gethostbyname gethostbyname2 gethostbyaddr)
    AC_CHECK_FUNCS(gethostbyname_r gethostbyname2_r gethostbyaddr_r, find_gethost_r=yes)
    AC_CHECK_FUNCS(getipnodebyname getipnodebyaddr freehostent)
    AC_CHECK_FUNCS(getaddrinfo freeaddrinfo getnameinfo)
    AC_CHECK_FUNCS(dlopen dlsym)
fi

if test "$install_runidn" = yes ; then
dnl Checks the flavor of gethostbyaddr* functions.
    AC_CACHE_CHECK(flavor of gethostbyaddr, ac_cv_flavor_gethostbyaddr,
    [ac_cv_flavor_gethostbyaddr=unknown
    AC_TRY_RUN(
    [
    #include <stddef.h>
    #include <sys/types.h>
    #include <sys/socket.h>
    #include <netdb.h>
    struct hostent *gethostbyaddr(const void *addr, socklen_t len, int type) {
	return NULL;
    }
    int main() {
	(void)gethostbyaddr(NULL, 0, 0);
	return 0;
    }
    ], ac_cv_flavor_gethostbyaddr=glibc2_2,,
       ac_cv_flavor_gethostbyaddr=unknown)
    AC_TRY_RUN(
    [
    #include <stddef.h>
    #include <sys/types.h>
    #include <sys/socket.h>
    #include <netdb.h>
    struct hostent *gethostbyaddr(const char *addr, size_t len, int type) {
	return NULL;
    }
    int main() {
	(void)gethostbyaddr(NULL, 0, 0);
	return 0;
    }
    ], ac_cv_flavor_gethostbyaddr=glibc,,
       ac_cv_flavor_gethostbyaddr=unknown)
    AC_TRY_RUN(
    [
    #include <stddef.h>
    #include <sys/types.h>
    #include <sys/socket.h>
    #include <netdb.h>
    struct hostent *gethostbyaddr(const char *addr, int len, int type) {
	return NULL;
    }
    int main() {
	(void)gethostbyaddr(NULL, 0, 0);
	return 0;
    }
    ], ac_cv_flavor_gethostbyaddr=traditional,,
       ac_cv_flavor_gethostbyaddr=unknown)
    if test "$ac_cv_func_gethostbyaddr" = no ; then
	ac_cv_flavor_gethostbyaddr=none
    fi])

    case "$ac_cv_flavor_gethostbyaddr" in
    glibc2_2)
	ac_cv_type_ghba_addr_t='const void *'
	ac_cv_type_ghba_addrlen_t='socklen_t'
	;;
    glibc)
	ac_cv_type_ghba_addr_t='const char *'
	ac_cv_type_ghba_addrlen_t='size_t'
	;;
    traditional | none)
	ac_cv_type_ghba_addr_t='const char *'
	ac_cv_type_ghba_addrlen_t='int'
	;;
    *)
	AC_MSG_ERROR([can't build runidn, since parameter type list of gethostbyaddr() is unknown to configure.])
	;;
    esac
    AC_DEFINE_UNQUOTED(GHBA_ADDR_T, $ac_cv_type_ghba_addr_t,
	[Define as the type of the 1st argument of gethostbyaddr.])
    AC_DEFINE_UNQUOTED(GHBA_ADDRLEN_T, $ac_cv_type_ghba_addrlen_t,
	[Define as the type of the 2nd argument of gethostbyaddr.])

dnl Checks the flavor of getnameinfo functions.
    AC_CACHE_CHECK(flavor of getnameinfo, ac_cv_flavor_getnameinfo,
    [ac_cv_flavor_getnameinfo=unknown
    AC_TRY_RUN(
    [
    #include <stddef.h>
    #include <sys/types.h>
    #include <sys/socket.h>
    #include <netdb.h>
    int getnameinfo(const struct sockaddr *sa, socklen_t salen, char *host,
                    socklen_t hostlen, char *serv, socklen_t servlen,
                    unsigned int flags) {
	return NULL;
    }
    int main() {
	(void)getnameinfo(NULL, 0, NULL, 0, NULL, 0, 0);
	return 0;
    }
    ], ac_cv_flavor_getnameinfo=glibc2_2_2,,
       ac_cv_flavor_getnameinfo=unknown)
    AC_TRY_RUN(
    [
    #include <stddef.h>
    #include <sys/types.h>
    #include <sys/socket.h>
    #include <netdb.h>
    int getnameinfo(const struct sockaddr *sa, socklen_t salen, char *host,
                    socklen_t hostlen, char *serv, socklen_t servlen,
                    int flags) {
	return NULL;
    }
    int main() {
	(void)getnameinfo(NULL, 0, NULL, 0, NULL, 0, 0);
	return 0;
    }
    ], ac_cv_flavor_getnameinfo=rfc2553bis_03,,
       ac_cv_flavor_getnameinfo=unknown)
    AC_TRY_RUN(
    [
    #include <stddef.h>
    #include <sys/types.h>
    #include <sys/socket.h>
    #include <netdb.h>
    int getnameinfo(const struct sockaddr *sa, socklen_t salen, char *host,
                    size_t hostlen, char *serv, size_t servlen, int flags) {
	return NULL;
    }
    int main() {
	(void)getnameinfo(NULL, 0, NULL, 0, NULL, 0, 0);
	return 0;
    }
    ], ac_cv_flavor_getnameinfo=rfc2553,,
       ac_cv_flavor_getnameinfo=unknown)
    AC_TRY_RUN(
    [
    #include <stddef.h>
    #include <sys/types.h>
    #include <sys/socket.h>
    #include <netdb.h>
    int getnameinfo(const struct sockaddr *sa, size_t salen, char *host,
                    size_t hostlen, char *serv, size_t servlen, int flags) {
	return NULL;
    }
    int main() {
	(void)getnameinfo(NULL, 0, NULL, 0, NULL, 0, 0);
	return 0;
    }
    ], ac_cv_flavor_getnameinfo=rfc2133,,
       ac_cv_flavor_getnameinfo=unknown)
    if test "$ac_cv_func_getnameinfo" = no ; then
	ac_cv_flavor_getnameinfo=none
    fi])

    case "$ac_cv_flavor_getnameinfo" in
    glibc2_2_2)
	ac_cv_type_gni_salen_t='socklen_t'
	ac_cv_type_gni_hostlen_t='socklen_t'
	ac_cv_type_gni_servlen_t='socklen_t'
	ac_cv_type_gni_flags_t='unsigned int'
	;;
    rfc2553bis_03)
	ac_cv_type_gni_salen_t='socklen_t'
	ac_cv_type_gni_hostlen_t='socklen_t'
	ac_cv_type_gni_servlen_t='socklen_t'
	ac_cv_type_gni_flags_t='int'
	;;
    rfc2553)
	ac_cv_type_gni_salen_t='socklen_t'
	ac_cv_type_gni_hostlen_t='size_t'
	ac_cv_type_gni_servlen_t='size_t'
	ac_cv_type_gni_flags_t='int'
	;;
    rfc2133 | none)
	ac_cv_type_gni_salen_t='size_t'
	ac_cv_type_gni_hostlen_t='size_t'
	ac_cv_type_gni_servlen_t='size_t'
	ac_cv_type_gni_flags_t='int'
	;;
    *)
	AC_MSG_ERROR([can't build runidn, since parameter type list of getnameinfo() is unknown to configure.])
    esac
    AC_DEFINE_UNQUOTED(GNI_SALEN_T, $ac_cv_type_gni_salen_t,
	[Define as the type of the 2nd argument of getnameinfo.])
    AC_DEFINE_UNQUOTED(GNI_HOSTLEN_T, $ac_cv_type_gni_hostlen_t,
	[Define as the type of the 4th argument of getnameinfo.])
    AC_DEFINE_UNQUOTED(GNI_SERVLEN_T, $ac_cv_type_gni_servlen_t,
	[Define as the type of the 6th argument of getnameinfo.])
    AC_DEFINE_UNQUOTED(GNI_FLAGS_T, $ac_cv_type_gni_flags_t,
	[Define as the type of the 7th argument of getnameinfo.])
fi

dnl resume here.
dnl Checks the flavor of gethost*_r functions.
if test "$find_gethost_r" = yes; then
    AC_CACHE_CHECK(flavor of gethostbyname_r, ac_cv_flavor_gethost_r,
    [AC_TRY_RUN(
changequote(<<, >>)dnl
<<
#include <stddef.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <stdio.h>
int main()
{
    int err = 0;
    struct hostent hebuf, *hp;
    char buf[10];
    /* Try resolving a invalid name using glibc flavor. */
    (void)gethostbyname_r("@#!", &hebuf, buf, sizeof(buf), &hp, &err);
    if (err != 0)
	return 0;	/* glibc flavor */
    else
	return 1;	/* Sun flavor */
}
>>,
changequote([, ])dnl
	ac_cv_flavor_gethost_r=glibc,
	ac_cv_flavor_gethost_r=sun,
	ac_cv_flavor_gethost_r=sun)])
    if test "$ac_cv_flavor_gethost_r" = "glibc"; then
	AC_DEFINE(GETHOST_R_GLIBC_FLAVOR, 1,
	    [Define if the prototype of gethost*_r is glibc flavor.])
    fi
fi

dnl Find system shared object paths.
AC_FIND_SYSTEM_SHOBJ(libc)
if test "$install_runidn" = yes ; then
    AC_FIND_SYSTEM_SHOBJ(libnsl)
fi

dnl Checks for iconv library.
if test "$liteonly" != yes ; then
    AC_MSG_CHECKING(for iconv)
    saved_CPPFLAGS=$CPPFLAGS
    saved_LIBS=$LIBS
    CPPFLAGS="$CPPFLAGS $ICONVINC"
    LIBS="$LIBS $ICONVLIB"
    AC_TRY_LINK([
    #include <iconv.h>
    ], [
	iconv_t i;
	i = iconv_open("ISO-8859-1", "UTF-8");
    ], [iconv_try_link=yes], [iconv_try_link=no])
    LIBS=$saved_LIBS
    CPPFLAGS=$saved_CPPFLAGS
    AC_MSG_RESULT($iconv_try_link)
    if test "$iconv_try_link" = no ; then
	AC_MSG_ERROR(iconv function not available)
    fi
fi

dnl Check for codeset name for UTF-8.
if test "$liteonly" != yes ; then
    AC_MSG_CHECKING([for codeset name $UTF8_NAME])
    saved_CPPFLAGS=$CPPFLAGS
    saved_LIBS=$LIBS
    CPPFLAGS="$CPPFLAGS $ICONVINC"
    LIBS="$LIBS $ICONVLIB"
    AC_TRY_RUN([
    #include <stddef.h>
    #include <stdlib.h>
    #include <iconv.h>
    #define UTF8_NAME "$UTF8_NAME"
    #define ICONV_FAIL ((iconv_t)(-1))
    /* Check if the codeset name UTF8_NAME is valid by performing iconv_open(). */
    int main() {
	int i;
	/* list of codeset names likely to exist */
	static char *codeset[] = {
	    "ASCII", "ISO-8859-1", "ISO8859-1", "iso8859_1", "8859-1",
	    "Shift_JIS", "SJIS", "sjis", NULL,
	};

	/* First try null conversion. */
	if (iconv_open(UTF8_NAME, UTF8_NAME) != ICONV_FAIL) return 0;

	/* Unfortunately, above check fails on certain systems, such as Solaris. */
	for (i = 0; codeset[i] != NULL; i++) {
	    if (iconv_open(UTF8_NAME, codeset[i]) != ICONV_FAIL) return 0;
	}
	return 1;
    }
    ], utf8_name_valid=yes, utf8_name_valid=no, utf8_name_valid=unknown)
    LIBS=$saved_LIBS
    CPPFLAGS=$saved_CPPFLAGS
    AC_MSG_RESULT($utf8_name_valid)
fi

dnl Output.
AC_CONFIG_HEADER(include/config.h)
AC_OUTPUT(
	Makefile
	include/Makefile
	include/idn/Makefile
	include/mdn/Makefile
	lib/Makefile
	man/Makefile
	tools/Makefile
	tools/idnconv/Makefile
	tools/runidn/Makefile
	tools/runidn/runidn
	map/Makefile
	lib/tests/Makefile
)