File: configure.ac

package info (click to toggle)
nss-pam-ldapd 0.9.10-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, buster, sid
  • size: 4,768 kB
  • sloc: ansic: 16,287; sh: 6,589; python: 3,368; xml: 1,925; makefile: 294; exp: 146
file content (1048 lines) | stat: -rw-r--r-- 37,429 bytes parent folder | download
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
# configure.ac - process this file with autoconf to produce configure
#
# Copyright (C) 2006 Luke Howard
# Copyright (C) 2006 West Consulting
# Copyright (C) 2006-2018 Arthur de Jong
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301 USA

AC_PREREQ(2.61)
AC_COPYRIGHT(
[Copyright (C) 2006 Luke Howard
Copyright (C) 2006 West Consulting
Copyright (C) 2006-2018 Arthur de Jong

This configure script is derived from configure.ac which is free software;
you can redistribute it and/or modify it under the terms of the GNU Lesser
General Public License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version. See the
configure.ac file for more details.])

# initialize and set version and bugreport address
AC_INIT([nss-pam-ldapd],
        [0.9.10],
        [nss-pam-ldapd-users@lists.arthurdejong.org],,
        [https://arthurdejong.org/nss-pam-ldapd/])
RELEASE_MONTH="Sep 2018"
AC_SUBST(RELEASE_MONTH)
AC_CONFIG_SRCDIR([nslcd.h])
AC_CONFIG_MACRO_DIR([m4])

# some initialisation
AC_CANONICAL_TARGET
AC_PREFIX_DEFAULT()
AC_CONFIG_LIBOBJ_DIR([compat])

# display notice and initialize automake
AC_MSG_NOTICE([configuring AC_PACKAGE_TARNAME AC_PACKAGE_VERSION])
AM_INIT_AUTOMAKE([1.11.2 check-news gnu std-options color-tests --warnings=all])

# create a config.h file (Automake will add -DHAVE_CONFIG_H)
AC_CONFIG_HEADERS([config.h])

# check for programs
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_RANLIB
AM_PROG_CC_C_O
AC_USE_SYSTEM_EXTENSIONS
AC_PROG_LN_S
AM_PROG_AR

# checks for tool to convert docbook to man
genman="no"
AC_PATH_PROGS(DOCBOOK2X_MAN, docbook2x-man)
AC_MSG_CHECKING([for tool to (re)generate man pages])
if test "x${DOCBOOK2X_MAN}" != x
then
  genman="${DOCBOOK2X_MAN}"
fi
AC_MSG_RESULT($genman)
AM_CONDITIONAL([GENMAN], [test "x${genman}" != "xno"])
if test "x${genman}" = "xno"
then
  AC_MSG_WARN([docbook2x-man not found: not (re)generating man pages])
fi

# check whether to install manual pages
AC_MSG_CHECKING([whether to install man pages])
instman="no"
if [test "x${genman}" != "xno" || ls  "${srcdir}/man/"*.? > /dev/null 2>&1]
then
  instman="yes"
fi
AC_MSG_RESULT($instman)
AM_CONDITIONAL([INSTMAN], [test "x${instman}" != "xno"])
if test "x${instman}" = "xno"
then
  AC_MSG_WARN([not installing man pages (no generator and not pre-generated)])
fi

# check for Python and modules
AM_PATH_PYTHON(2.5,, [:])
AM_CONDITIONAL([HAVE_PYTHON], [test "$PYTHON" != ":"])
if test "x$PYTHON" != "x:"
then
  AX_PYTHON_MODULE(argparse)
fi

# check for debugging options
AC_ARG_ENABLE(debug,
              AS_HELP_STRING([--enable-debug],
                             [enable extensive debugging and logging]),
              [if test "x$enableval" != "xno" ; then CFLAGS="-g -DDEBUG $CFLAGS" ; fi])

# check for extra compiler warnings
DESIRED_CFLAGS=""
AC_ARG_ENABLE(warnings,
              AS_HELP_STRING([--enable-warnings],
                             [enable extra compiler warnings (gcc)]),
              [if test "x$enableval" != "no"
               then
                 CFLAGS="$CFLAGS -pedantic -Wall -Wshadow -Wpointer-arith -Wcast-align -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Waggregate-return -Wmissing-declarations -Wunused -Wformat=2 -Wswitch-default -Wswitch-enum -Wfloat-equal -Wbad-function-cast -Wredundant-decls"
                 DESIRED_CFLAGS="$DESIRED_CFLAGS -Wextra -Wdeclaration-after-statement -Werror-implicit-function-declaration -Werror=implicit"
               fi])
test_gcc_flag() {
  AC_LANG_CONFTEST([AC_LANG_PROGRAM()])
  $CC -c conftest.c $CFLAGS $@ > /dev/null 2> /dev/null
  ret=$?
  rm -f conftest.o
  return $ret
}
for flag in $DESIRED_CFLAGS
do
  AC_MSG_CHECKING([whether $CC accepts $flag])
  if test_gcc_flag $flag
  then
    CFLAGS="$CFLAGS $flag"
    AC_MSG_RESULT([yes])
  else
    AC_MSG_RESULT([no])
  fi
done

# check for Position Independent Code compiler option
PIC_CFLAGS=""
if test "$ac_cv_c_compiler_gnu" = "yes"
then
  PIC_CFLAGS="-fPIC"
else
  case "$target_os" in
    sysv5*) PIC_CFLAGS="-KPIC" ;;
  esac
fi
AC_SUBST(PIC_CFLAGS)

# add --disable-maintainer-mode option
AM_MAINTAINER_MODE([enable])

# check whether the NSS module should be built
AC_MSG_CHECKING([whether to build the NSS module])
AC_ARG_ENABLE(nss,
              AS_HELP_STRING([--disable-nss],
                             [build the NSS module @<:@enabled@:>@]),,
              [enable_nss="yes"])
AC_MSG_RESULT($enable_nss)
AM_CONDITIONAL([ENABLE_NSS], [test "x$enable_nss" = "xyes"])

# check whether the PAM module should be built
AC_MSG_CHECKING([whether to build the PAM module])
AC_ARG_ENABLE(pam,
              AS_HELP_STRING([--disable-pam],
                             [build the PAM module @<:@enabled@:>@]),,
              [enable_pam="yes"])
AC_MSG_RESULT($enable_pam)
AM_CONDITIONAL([ENABLE_PAM], [test "x$enable_pam" = "xyes"])

# check whether command-line utilities should be built
AC_MSG_CHECKING([whether to build the command-line utilities])
AC_ARG_ENABLE(utils,
              AS_HELP_STRING([--disable-utils],
                             [build the the command-line utilities @<:@auto@:>@]),,
              [enable_utils="auto"])
if test "x$enable_utils" = "xauto"
then
  if test "x$PYTHON" != "x:" && test "$HAVE_PYMOD_ARGPARSE" = "yes"
  then
    enable_utils="yes"
  else
    enable_utils="no"
  fi
fi
AC_MSG_RESULT($enable_utils)
AM_CONDITIONAL([ENABLE_UTILS], [test "x$enable_utils" = "xyes"])

# check whether the nslcd daemon should be built
AC_MSG_CHECKING([whether to build the nslcd daemon])
AC_ARG_ENABLE(nslcd,
              AS_HELP_STRING([--disable-nslcd],
                             [build the nslcd daemon @<:@enabled@:>@]),,
              [enable_nslcd="yes"])
AC_MSG_RESULT($enable_nslcd)
AM_CONDITIONAL([ENABLE_NSLCD], [test "x$enable_nslcd" = "xyes"])

# check whether the Python version of the nslcd daemon should be built
AC_MSG_CHECKING([whether to build the pynslcd daemon])
AC_ARG_ENABLE(pynslcd,
              AS_HELP_STRING([--enable-pynslcd],
                             [build the pynslcd daemon @<:@disabled@:>@]),,
              [enable_pynslcd="no"])
AC_MSG_RESULT($enable_pynslcd)
AM_CONDITIONAL([ENABLE_PYNSLCD], [test "x$enable_pynslcd" = "xyes"])
if test "x$enable_pynslcd" = "xyes"
then
  AC_MSG_WARN([the pynslcd daemon is experimental])
fi

# check whether SASL support should be enabled
AC_MSG_CHECKING([whether to enable SASL support])
AC_ARG_ENABLE(sasl,
              AS_HELP_STRING([--disable-sasl],
                             [disable SASL support @<:@enabled@:>@]),
              [enable_sasl=$enableval],
              [enable_sasl="yes"])
AC_MSG_RESULT($enable_sasl)

# check whether Kerberos support should be enabled
AC_MSG_CHECKING([whether to enable Kerberos support])
AC_ARG_ENABLE(kerberos,
              AS_HELP_STRING([--disable-kerberos],
                             [disable Kerberos support @<:@enabled@:>@]),
              [enable_kerberos=$enableval],
              [enable_kerberos="yes"])
AC_MSG_RESULT($enable_kerberos)

# check whether configfile options should be checked
AC_MSG_CHECKING([whether to check configfile options])
AC_ARG_ENABLE(configfile_checking,
              AS_HELP_STRING([--disable-configfile-checking],
                             [check configfile options @<:@enabled@:>@]),
              [configfile_checking=$enableval],
              [configfile_checking="yes"])
AC_MSG_RESULT($configfile_checking)
if test "x$configfile_checking" = "xyes"
then
  AC_DEFINE(ENABLE_CONFIGFILE_CHECKING, 1 ,[Whether to check configfile options.])
fi

# check the name of the configuration file
AC_ARG_WITH(ldap-conf-file,
            AS_HELP_STRING([--with-ldap-conf-file=PATH],
                           [path to nslcd configuration file @<:@/etc/nslcd.conf@:>@]),
            [ NSLCD_CONF_PATH="$with_ldap_conf_file" ],
            [ NSLCD_CONF_PATH="/etc/nslcd.conf" ])
AC_DEFINE_UNQUOTED(NSLCD_CONF_PATH, "$NSLCD_CONF_PATH", [Path to nslcd configuration file.])
AC_SUBST(NSLCD_CONF_PATH)

# check the name of the file with a bindpw value
AC_ARG_WITH(bindpw-file,
            AS_HELP_STRING([--with-bindpw-file=PATH],
                           [path to file with value for bindpw @<:@disabled@:>@]),
            [ NSLCD_BINDPW_PATH="$with_bindpw_file"
              AC_DEFINE_UNQUOTED(NSLCD_BINDPW_PATH, "$NSLCD_BINDPW_PATH", [Path to bindpw value.])
              AC_SUBST(NSLCD_BINDPW_PATH)
            ])

# where should the pidfile be written
AC_ARG_WITH(nslcd-pidfile,
            AS_HELP_STRING([--with-nslcd-pidfile=PATH],
                           [path to pidfile @<:@/var/run/nslcd/nslcd.pid@:>@]),
            [ NSLCD_PIDFILE="$with_nslcd_pidfile" ],
            [ NSLCD_PIDFILE="/var/run/nslcd/nslcd.pid" ])
AC_DEFINE_UNQUOTED(NSLCD_PIDFILE, "$NSLCD_PIDFILE", [The location of the pidfile used for checking availability of the nslcd.])
AC_SUBST(NSLCD_PIDFILE)

# where is the socket used for communication
AC_ARG_WITH(nslcd-socket,
            AS_HELP_STRING([--with-nslcd-socket=PATH],
                           [path to socket @<:@/var/run/nslcd/socket@:>@]),
            [ NSLCD_SOCKET="$with_nslcd_socket" ],
            [ NSLCD_SOCKET="/var/run/nslcd/socket" ])
AC_DEFINE_UNQUOTED(NSLCD_SOCKET, "$NSLCD_SOCKET", [The location of the socket used for communicating.])
AC_SUBST(NSLCD_SOCKET)

# the directory PAM librabries are expected to be placed into
AC_MSG_CHECKING([location for PAM module])
AC_ARG_WITH(pam-seclib-dir,
            AS_HELP_STRING([--with-pam-seclib-dir=PAM_SECLIB_DIR],
                           [path to PAM security library @<:@auto@:>@]),
            [ PAM_SECLIB_DIR="$with_pam_seclib_dir" ],
            [ PAM_SECLIB_DIR="auto" ])
if test "x$PAM_SECLIB_DIR" = "xauto"
then
  case "$target_os" in
    solaris*) PAM_SECLIB_DIR="/usr/lib/security" ;;
    freebsd*|dragonfly*) PAM_SECLIB_DIR="/usr/lib" ;;
    *)        PAM_SECLIB_DIR="/lib/security" ;;
  esac
fi
AC_MSG_RESULT($PAM_SECLIB_DIR)
AC_DEFINE_UNQUOTED(PAM_SECLIB_DIR, "$PAM_SECLIB_DIR", [path to PAM security library])
AC_SUBST(PAM_SECLIB_DIR)

# the name to use for the NSS module
AC_MSG_CHECKING([name of NSS and PAM modules])
AC_ARG_WITH(module-name,
            AS_HELP_STRING([--with-module-name=NAME],
                           [name of NSS and PAM modules @<:@ldap@:>@]),
            [ MODULE_NAME="$with_module_name" ],
            [ MODULE_NAME="ldap" ])
            # FIXME: this does not work
AC_MSG_RESULT($MODULE_NAME)
AC_DEFINE_UNQUOTED(MODULE_NAME, "$MODULE_NAME", [The name of the NSS and PAM modules.])
AC_DEFINE_UNQUOTED(NSS_NAME(NAME), [_nss_${MODULE_NAME}_##NAME], [Expand to NSS symbol name.])
AC_DEFINE_UNQUOTED(PAM_NAME(NAME), [_pam_${MODULE_NAME}_##NAME], [Expand to PAM symbol name.])
AC_SUBST(MODULE_NAME)

# the SONAME to use for the NSS module
AC_MSG_CHECKING([soname of NSS module])
AC_ARG_WITH(nss-ldap-soname,
            AS_HELP_STRING([--with-nss-ldap-soname=SONAME],
                           [name of NSS module @<:@auto@:>@]),
            [ NSS_LDAP_SONAME="$with_nss_ldap_soname" ],
            [ NSS_LDAP_SONAME="auto" ])
if test "x$NSS_LDAP_SONAME" = "xauto"
then
  case "$target_os" in
    solaris*) NSS_LDAP_SONAME="nss_$MODULE_NAME.so.1" ;;
    freebsd*|dragonfly*) NSS_LDAP_SONAME="nss_$MODULE_NAME.so.1" ;;
    *)        NSS_LDAP_SONAME="libnss_$MODULE_NAME.so.2" ;;
  esac
fi
AC_MSG_RESULT($NSS_LDAP_SONAME)
AC_DEFINE_UNQUOTED(NSS_LDAP_SONAME, "$NSS_LDAP_SONAME", [The SONAME of the NSS library module.])
AC_SUBST(NSS_LDAP_SONAME)

# the SONAME to use for the PAM module
AC_MSG_CHECKING([soname of PAM module])
AC_ARG_WITH(pam-ldap-soname,
            AS_HELP_STRING([--with-pam-ldap-soname=SONAME],
                           [name of PAM module @<:@auto@:>@]),
            [ PAM_LDAP_SONAME="$with_pam_ldap_soname" ],
            [ PAM_LDAP_SONAME="auto" ])
if test "x$PAM_LDAP_SONAME" = "xauto"
then
  case "$target_os" in
    solaris*) PAM_LDAP_SONAME="pam_$MODULE_NAME.so.1" ;;
    *)        PAM_LDAP_SONAME="pam_$MODULE_NAME.so" ;;
  esac
fi
AC_MSG_RESULT($PAM_LDAP_SONAME)
AC_SUBST(PAM_LDAP_SONAME)

# check which modules should be build
AC_ARG_WITH(nss-maps,
            AS_HELP_STRING([--with-nss-maps=MAP LIST],
                           [comma separated list of NSS maps to build @<:@all@:>@]),,
            [ with_nss_maps="all" ])

# checks for availability of header files
AC_CHECK_HEADERS([ctype.h strings.h pthread.h pthread_np.h fcntl.h limits.h])
AC_CHECK_HEADERS([nss.h nss_common.h grp.h shadow.h aliases.h netdb.h rpc/rpcent.h])
AC_CHECK_HEADERS([netinet/ether.h arpa/inet.h netinet/in.h])
AC_CHECK_HEADERS([nsswitch.h nss_dbdefs.h])
AC_CHECK_HEADERS([sys/socket.h sys/un.h sys/ucred.h ucred.h sys/param.h sys/time.h])
AC_CHECK_HEADERS([getopt.h syslog.h stddef.h])

# other general checks
AC_C_INLINE
AC_C_CONST

# checks for availability of common functions
AC_CHECK_FUNCS([sigaction snprintf])
AC_SEARCH_LIBS(socket, socket)
AC_CHECK_FUNCS([strcasecmp strncasecmp strchr strcspn strspn strtol strtoul strtoull strndup])
AC_CHECK_FUNCS([malloc realloc atexit])
AC_FUNC_FORK
AC_CHECK_FUNCS(__assert_fail)
AC_SEARCH_LIBS(clock_gettime, rt)
AC_CHECK_FUNCS([setusershell getusershell endusershell getgrouplist])
AC_CHECK_DECLS([setusershell, getusershell, endusershell])

# checks for types
AC_TYPE_MODE_T
AC_TYPE_SIZE_T
AC_TYPE_UID_T
AC_TYPE_PID_T
AC_TYPE_INT32_T
AC_TYPE_UINT8_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_CHECK_SIZEOF(unsigned int)
AC_CHECK_SIZEOF(unsigned long int)
AC_CHECK_SIZEOF(unsigned long long int)
AC_CHECK_SIZEOF(uid_t)
AC_CHECK_SIZEOF(gid_t)
AX_TLS()
AC_CHECK_TYPES(suseconds_t)

# check for support for the struct ether_addr structure
AC_CHECK_TYPES(struct ether_addr,,, [
    #include <sys/types.h>
    #include <sys/socket.h>
    #include <net/if.h>
    #include <netinet/in.h>
    #include <netinet/if_ether.h>
    #ifdef HAVE_NETINET_ETHER_H
    #include <netinet/ether.h>
    #endif])

# check for ether_aton and ether_ntoa functions
AC_CHECK_FUNCS(ether_aton ether_ntoa ether_aton_r ether_ntoa_r)
AC_CHECK_DECLS([ether_aton, ether_ntoa],,, [
    #include <sys/types.h>
    #include <sys/socket.h>
    #include <net/if.h>
    #include <netinet/in.h>
    #include <netinet/if_ether.h>
    #ifdef HAVE_NETINET_ETHER_H
    #include <netinet/ether.h>
    #endif])

# check to see if socklen_t is defined
AC_CHECK_TYPE(socklen_t,,
    AC_DEFINE(socklen_t, size_t, [Define to `size_t' if not defined elswhere.]), [
    #include <sys/types.h>
    #include <sys/socket.h>])

# check the return type of setnetgrent()
AC_CACHE_CHECK(
    [return type of setnetgrent],
    nss_pam_ldapd_cv_setnetgrent_type,
    [AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM([[
            #include <netdb.h>
            ]], [[
            return setnetgrent(0);
            ]])],
        [nss_pam_ldapd_cv_setnetgrent_type=int],
        [nss_pam_ldapd_cv_setnetgrent_type=void]) ])
if test "x$nss_pam_ldapd_cv_setnetgrent_type" = "xvoid"
then
  AC_DEFINE(SETNETGRENT_RETURNS_VOID, 1,
            [Define to 1 if setnetgrent() returns void.])
fi

# NSS module-specific tests
if test "x$enable_nss" = "xyes"
then
  # save CFLAGS and LIBS to restore later
  nss_save_CFLAGS="$CFLAGS"
  nss_save_LIBS="$LIBS"

  # check for a definition of struct aliasent
  AC_CHECK_TYPES(struct aliasent,,, [
      #ifdef HAVE_ALIASES_H
      #include <aliases.h>
      #endif])

  # check for a definition of struct etherent
  AC_CHECK_TYPES(struct etherent,,, [
    #include <sys/socket.h>
    #include <net/if.h>
    #include <netinet/in.h>
    #include <netinet/if_ether.h>
    #ifdef HAVE_NETINET_ETHER_H
    #include <netinet/ether.h>
    #endif])

  # check if struct passwd has a pw_class member
  AC_CHECK_MEMBERS([struct passwd.pw_class],,, [
      #include <pwd.h>])

  # check for a definition of struct rpcent
  AC_CHECK_TYPES(struct rpcent,,, [
      #include <netdb.h>
      #ifdef HAVE_RPC_RPCENT_H
      #include <rpc/rpcent.h>
      #endif])

  # check for a definition of struct spwd
  AC_CHECK_TYPES(struct spwd,,, [
      #ifdef HAVE_NSS_H
      #include <nss.h>
      #endif
      #ifdef HAVE_NSS_COMMON_H
      #include <nss_common.h>
      #endif
      #include <pwd.h>
      #ifdef HAVE_SHADOW_H
      #include <shadow.h>
      #endif])

  # check for a definition of enum nss_status and nss_backend_t
  AC_CHECK_TYPES([enum nss_status, nss_backend_t],,, [
      #ifdef HAVE_NSS_H
      #include <nss.h>
      #endif
      #ifdef HAVE_NSS_COMMON_H
      #include <nss_common.h>
      #endif
      #ifdef HAVE_NSS_DBDEFS_H
      #include <nss_dbdefs.h>
      #endif
      #ifdef HAVE_NSSWITCH_H
      #include <nsswitch.h>
      #endif])

  # check if struct nss_XbyY_args has a returnlen attribute
  AC_CHECK_MEMBERS([struct nss_XbyY_args.returnlen],,, [[
      #ifdef HAVE_NSS_H
      #include <nss.h>
      #endif
      #ifdef HAVE_NSS_COMMON_H
      #include <nss_common.h>
      #endif
      #ifdef HAVE_NSS_DBDEFS_H
      #include <nss_dbdefs.h>
      #endif
      #ifdef HAVE_NSSWITCH_H
      #include <nsswitch.h>
      #endif]])

  # check which NSS flavour to build
  AC_MSG_CHECKING([which NSS flavour to build])
  AC_ARG_WITH(nss-flavour,
              AS_HELP_STRING([--with-nss-flavour=auto|glibc|solaris|freebsd],
                             [the libc flavour to build our NSS module for @<:@auto@:>@]),,
              with_nss_flavour=auto)
  if test "x$with_nss_flavour" = "xauto"
  then
    # do the guessing game
    case "$target_os" in
      solaris*) with_nss_flavour=solaris ;;
      freebsd*|dragonfly*) with_nss_flavour=freebsd ;;
      *)        with_nss_flavour=glibc ;;
    esac
  fi
  AC_MSG_RESULT($with_nss_flavour)
  case "$with_nss_flavour" in
    glibc)   AC_DEFINE(NSS_FLAVOUR_GLIBC, 1, [Whether to use the Glibc NSS interface flavour.]) ;;
    solaris) AC_DEFINE(NSS_FLAVOUR_SOLARIS, 1, [Whether to use the Solaris NSS interface flavour.]) ;;
    freebsd) AC_DEFINE(NSS_FLAVOUR_FREEBSD, 1, [Whether to use the FreeBSD NSS interface flavour.]) ;;
  esac
  NSS_FLAVOUR="$with_nss_flavour"
  AC_SUBST(NSS_FLAVOUR)

  # check which module source files to use
  AC_MSG_CHECKING([which NSS maps to build])
  if test "x$with_nss_maps" = "xall"
  then
    case "$with_nss_flavour" in
      glibc)   with_nss_maps="aliases,ethers,group,hosts,netgroup,networks,passwd,protocols,rpc,services,shadow" ;;
      solaris) with_nss_maps="ethers,group,hosts,netgroup,networks,passwd,protocols,rpc,services,shadow" ;;
      freebsd) with_nss_maps="group,hosts,passwd,netgroup" ;;
    esac
  fi
  AC_MSG_RESULT($with_nss_maps)
  NSS_MODULE_OBJS="$(echo "$with_nss_maps " | sed 's/,/ /g;s/  */.$(OBJEXT) /g')"
  AC_SUBST(NSS_MODULE_OBJS)

  # find out how to link the library
  nss_ldap_so_LINK="\$(CCLD) \$(AM_CFLAGS) \$(CFLAGS) \$(nss_ldap_so_LDFLAGS) \$(LDFLAGS) -o \$@"
  case "$target_os" in
  solaris*)
    if test "x$GCC" = xyes
    then
      nss_ldap_so_LINK="/usr/ccs/bin/ld -Bdirect -z nodelete -Bdynamic -M exports.map -G -o \$@"
    else
      nss_ldap_so_LDFLAGS="-Wl,-Bdirect -Wl,-z,nodelete -Wl,-Bdynamic -Wl,-M,exports.map -Wl,-G"
    fi
    ;;
  *)
    nss_ldap_so_LDFLAGS="-shared -Wl,-h,\$(NSS_LDAP_SONAME) -Wl,--version-script,exports.map"
    ;;
  esac
  AC_SUBST(nss_ldap_so_LDFLAGS)
  AC_SUBST(nss_ldap_so_LINK)

  # restore CFLAGS and LIBS
  CFLAGS="$nss_save_CFLAGS"
  LIBS="$nss_save_LIBS"
fi

# PAM module-specific tests
if test "x$enable_pam" = "xyes"
then
  # save CFLAGS and LIBS to restore later
  pam_save_CFLAGS="$CFLAGS"
  pam_save_LIBS="$LIBS"

  # check for headers
  AC_CHECK_HEADERS(security/pam_appl.h)
  AC_CHECK_HEADERS(security/pam_modules.h,,, [
      #ifdef HAVE_SECURITY_PAM_APPL_H
      #include <security/pam_appl.h>
      #endif
      ])
  AC_CHECK_HEADERS(pam/pam_modules.h)
  AC_CHECK_HEADERS(security/pam_ext.h)
  AC_CHECK_HEADERS(security/pam_modutil.h)

  # at least one of security/pam_modules.h or pam/pam_modules.h is required
  if test "x$ac_cv_header_security_pam_modules_h" != "xyes" && \
     test "x$ac_cv_header_pam_pam_modules_h" != "xyes"
  then
    AC_MSG_ERROR(PAM header files are missing)
  fi

  # find pam library
  AC_SEARCH_LIBS(pam_get_data, pam,, AC_MSG_ERROR(no PAM library available))

  # replace some PAM functions if they are unavailable
  AC_REPLACE_FUNCS(pam_get_authtok pam_prompt)
  AC_CHECK_FUNCS(pam_modutil_getpwnam pam_syslog)
  AC_CHECK_DECLS([pam_info, pam_error],,, [
     #ifdef HAVE_SECURITY_PAM_APPL_H
     #include <security/pam_appl.h>
     #endif
     #ifndef HAVE_PAM_PAM_MODULES_H
     #include <security/pam_modules.h>
     #ifdef HAVE_SECURITY_PAM_EXT_H
     #include <security/pam_ext.h>
     #endif
     #else
     #include <pam/pam_modules.h>
     #endif
     #ifdef HAVE_SECURITY_PAM_MODUTIL_H
     #include <security/pam_modutil.h>
     #endif])

  # find out how to link the library
  pam_ldap_so_LINK="\$(CCLD) \$(AM_CFLAGS) \$(CFLAGS) \$(pam_ldap_so_LDFLAGS) \$(LDFLAGS) -o \$@"
  case "$target_os" in
  solaris*)
    if test "x$GCC" = xyes
    then
      pam_ldap_so_LINK="/usr/ccs/bin/ld -Bdirect -z nodelete -Bdynamic -M \$(srcdir)/pam_ldap.map -G -o \$@"
    else
      pam_ldap_so_LDFLAGS="-shared -Wl,-Bdirect -Wl,-z,nodelete -Wl,-Bdynamic -Wl,-M,\$(srcdir)/pam_ldap.map -Wl,-G"
    fi
    ;;
  *)
    pam_ldap_so_LDFLAGS="-shared -Wl,--version-script,\$(srcdir)/pam_ldap.map"
    ;;
  esac
  AC_SUBST(pam_ldap_so_LDFLAGS)
  AC_SUBST(pam_ldap_so_LINK)

  # check argument type of pam_get_item()
  AC_CACHE_CHECK(
      [argument type of pam_get_item],
      nss_pam_ldapd_cv_pam_get_item_arg3_type,
      [AC_COMPILE_IFELSE(
          [AC_LANG_PROGRAM([[
              #ifdef HAVE_SECURITY_PAM_APPL_H
              #include <security/pam_appl.h>
              #endif
              #ifndef HAVE_PAM_PAM_MODULES_H
              #include <security/pam_modules.h>
              #ifdef HAVE_SECURITY_PAM_EXT_H
              #include <security/pam_ext.h>
              #endif
              #else
              #include <pam/pam_modules.h>
              #endif
              #ifdef HAVE_SECURITY_PAM_MODUTIL_H
              #include <security/pam_modutil.h>
              #endif
              extern int pam_get_item(const pam_handle_t *pamh, int item_type, const void **item);
              ]], [])],
          [nss_pam_ldapd_cv_pam_get_item_arg3_type="const void **"],
          [nss_pam_ldapd_cv_pam_get_item_arg3_type="void **"]) ])
  PAM_ITEM_CONST=""
  if test "$nss_pam_ldapd_cv_pam_get_item_arg3_type" = "const void **"
  then
    PAM_ITEM_CONST="const"
  fi
  AC_DEFINE_UNQUOTED(PAM_ITEM_CONST, [$PAM_ITEM_CONST],
                     [Define to empty if pam_get_item() doesn't take `const` parameter.])

  # restore CFLAGS and LIBS
  CFLAGS="$pam_save_CFLAGS"
  LIBS="$pam_save_LIBS"
fi

# utils-specific tests
if test "x$enable_utils" = "xyes"
then
  # check Python interpreter
  AM_PATH_PYTHON(2.5,, AC_MSG_ERROR([Python is required]))
  AX_PYTHON_MODULE(argparse)
  if test "x$HAVE_PYMOD_ARGPARSE" != "xyes"
  then
    AC_MSG_WARN(Required Python modules missing)
  fi
fi

# nslcd daemon-specific tests
if test "x$enable_nslcd" = "xyes"
then
  # save CFLAGS and LIBS to restore later
  nslcd_save_CFLAGS="$CFLAGS"
  nslcd_save_LIBS="$LIBS"

  # check header files
  AC_CHECK_HEADERS(lber.h)
  AC_CHECK_HEADERS(ldap.h,, test "x$enable_nslcd" = "xyes" && AC_MSG_ERROR([could not locate <ldap.h>]), [
      #if HAVE_LBER_H
      #include <lber.h>
      #endif
      ])
  AC_CHECK_HEADERS(ldap_ssl.h)
  AC_CHECK_HEADERS(gssldap.h)
  if test "x$enable_sasl" = "xyes"
  then
    AC_CHECK_HEADERS(sasl.h sasl/sasl.h)
    AC_CHECK_HEADERS(gsssasl.h)
  fi
  if test "x$enable_kerberos" = "xyes"
  then
    AC_CHECK_HEADERS(gssapi/gssapi.h gssapi/gssapi_generic.h gssapi/gssapi_krb5.h gssapi.h krb5.h)
  fi
  AC_CHECK_HEADERS(regex.h)

  # checks for availability of system libraries for nslcd
  AC_SEARCH_LIBS(gethostbyname, nsl socket)
  AC_SEARCH_LIBS(hstrerror, resolv)
  AC_SEARCH_LIBS(dlopen, dl)

  # check for availability of functions
  AC_CHECK_FUNCS(initgroups setgroups execvp execvpe)
  AC_CHECK_FUNCS(getpeereid)
  AC_CHECK_FUNCS(getpeerucred)
  AC_CHECK_FUNCS(__nss_configure_lookup)
  AC_CHECK_FUNCS(getenv putenv clearenv)
  AC_CHECK_FUNCS(dlopen dlsym dlerror)
  AC_CHECK_FUNCS(regcomp regexec regerror)
  AC_CHECK_FUNCS(hstrerror)

  # replace some functions if they are not on the system
  AC_REPLACE_FUNCS(getopt_long)
  AC_REPLACE_FUNCS(strndup)

  # replace ether_aton_r() if not found
  AC_CHECK_FUNCS(ether_aton_r,, [AC_LIBOBJ(ether)])

  # check to see if struct sockaddr_storage is defined
  AC_CHECK_TYPE(struct sockaddr_storage,,
      AC_DEFINE(sockaddr_storage, sockaddr_in, [Define to `sockaddr_in' if not defined elsewhere.]), [
      #include <sys/types.h>
      #include <sys/socket.h>])

  # check for support for the struct ucred structure
  AC_CHECK_TYPE(struct ucred,
      AC_DEFINE(HAVE_STRUCT_UCRED, 1, [Define to 1 if you have a `struct ucred' definition.]),, [
      #include <sys/socket.h>
      #include <sys/un.h>
      #include <sys/types.h>])

  # check threading stuff
  AX_PTHREAD(, AC_MSG_ERROR([no support for pthreads]))
  pthread_save_CFLAGS="$CFLAGS"
  pthread_save_LIBS="$LIBS"
  CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
  LIBS="$LIBS $PTHREAD_LIBS"
  AC_CHECK_FUNCS([pthread_mutex_lock pthread_join pthread_timedjoin_np pthread_atfork])
  CFLAGS="$pthread_save_CFLAGS"
  LIBS="$pthread_save_LIBS"

  # also use deprecated LDAP functions
  AC_DEFINE(LDAP_DEPRECATED, 1, Define to activate deprecated features in OpenLDAP)
  # for compatibility on Solaris
  AC_DEFINE(LDAP_REFERRALS, 1, Define to get some functions on Solaris)

  # search for an LDAP library (only OpenLDAP is tested)
  AC_ARG_WITH(ldap-lib,
              AS_HELP_STRING([--with-ldap-lib=TYPE],
                             [select ldap library (auto|netscape5|netscape4|netscape3|umich|openldap) @<:@auto@:>@]))
  if test -z "$with_ldap_lib"
  then
    with_ldap_lib=auto
  fi
  if test -z "$found_ldap_lib" -a \( $with_ldap_lib = auto -o $with_ldap_lib = umich -o $with_ldap_lib = openldap \)
  then
    AC_SEARCH_LIBS(ldap_search_ext, [ldap_r ldap], found_ldap_lib=yes,, )
  fi
  if test -z "$found_ldap_lib" -a \( $with_ldap_lib = auto -o $with_ldap_lib = netscape5 \)
  then
    AC_CHECK_LIB(ldap50, main, LIBS="-lldap50 -lssldap50 -lssl3 -lnss3 -lnspr4 -lprldap50 -lplc4 -lplds4 $LIBS" found_ldap_lib=yes,, -lpthread)
  fi
  if test -z "$found_ldap_lib" -a \( $with_ldap_lib = auto -o $with_ldap_lib = netscape4 \)
  then
    AC_CHECK_LIB(ldapssl41, main, LIBS="-lldapssl41 -lplc3 -lplds3 -lnspr3 $LIBS" found_ldap_lib=yes,, -lpthread)
    if test -z "$found_ldap_lib"
    then
      AC_CHECK_LIB(ldapssl40, main, LIBS="-lldapssl40 $LIBS" found_ldap_lib=yes,, -lpthread)
    fi
    if test -z "$found_ldap_lib"
    then
      AC_CHECK_LIB(ldap41, main, LIBS="-lldap41 $LIBS" found_ldap_lib=yes,, )
    fi
    if test -z "$found_ldap_lib"
    then
      AC_CHECK_LIB(ldap40, main, LIBS="-lldap40 $LIBS" found_ldap_lib=yes,, )
    fi
  fi
  if test -z "$found_ldap_lib" -a \( $with_ldap_lib = auto -o $with_ldap_lib = netscape3 \)
  then
    AC_CHECK_LIB(ldapssl30, main, LIBS="-lldapssl30 $LIBS" found_ldap_lib=yes,, -lpthread)
  fi
  AC_CHECK_FUNCS(ldap_search_ext,, AC_MSG_ERROR([could not locate a valid LDAP library]))

  # see if we need a BER library
  AC_SEARCH_LIBS(ber_bvfree, lber)

  # check for extra SASL libraries
  if test "$enable_sasl" = "yes"
  then
    AC_CHECK_TYPE(sasl_interact_t,
        AC_DEFINE(HAVE_SASL_INTERACT_T, 1, [Define to 1 if you have a `sasl_interact_t' definition.]),, [
        #ifdef HAVE_SASL_SASL_H
        #include <sasl/sasl.h>
        #elif defined(HAVE_SASL_H)
        #include <sasl.h>
        #endif])
    AC_SEARCH_LIBS(ldap_sasl_interactive_bind_s, sasl2)
    AC_CHECK_FUNCS(ldap_sasl_interactive_bind_s)
  fi

  # check for extra Kerberos libraries
  if test "$enable_kerberos" = "yes"
  then
    AC_SEARCH_LIBS(gss_krb5_ccache_name, gssapi gssapi_krb5)
    AC_CHECK_FUNCS(gss_krb5_ccache_name)

    # save CFLAGS and LIBS to restore later
    krb5_save_CFLAGS="$CFLAGS"
    krb5_save_LIBS="$LIBS"

    # find library that contains krb5_is_thread_safe
    AC_SEARCH_LIBS(krb5_sendauth, [krb5 'krb5 -lcrypto -ldes -lasn1 -lroken'])
    AC_CHECK_FUNCS(krb5_is_thread_safe)

    # see if krb5 is thread safe
    if test "x$ac_cv_func_krb5_is_thread_safe" == "xyes"
    then
      AC_CACHE_CHECK(
          [krb5 thread safety],
          nslcd_cv_krb5_is_thread_safe,
              [AC_RUN_IFELSE(
                  [AC_LANG_PROGRAM([[
                      #include <krb5.h>
                      ]], [[
                      if (!krb5_is_thread_safe())
                        return 1;
                      ]])],
                  [nslcd_cv_krb5_is_thread_safe=yes],
                  [nslcd_cv_krb5_is_thread_safe=no],
                  [nslcd_cv_krb5_is_thread_safe=unknown])])
      if test "x$nslcd_cv_krb5_is_thread_safe" == "xno"
      then
        AC_MSG_WARN([krb5 is NOT thread safe])
      fi
    fi

    # restore CFLAGS and LIBS because we don't directly use krb5
    CFLAGS="$krb5_save_CFLAGS"
    LIBS="$krb5_save_LIBS"

  fi

  # check for ldap function availability
  AC_CHECK_FUNCS(ber_bvfree ber_free ber_set_option ber_get_enum)
  AC_CHECK_FUNCS(ldap_initialize ldap_start_tls_s)
  AC_CHECK_FUNCS(ldap_get_option ldap_set_option ldap_set_rebind_proc)
  AC_CHECK_FUNCS(ldap_simple_bind_s ldap_sasl_bind ldap_sasl_bind_s ldap_unbind)
  AC_CHECK_FUNCS(ldap_search_ext ldap_modify_ext_s ldap_extended_operation_s)
  AC_CHECK_FUNCS(ldap_explode_dn ldap_explode_rdn)
  AC_CHECK_FUNCS(ldap_domain2hostlist ldap_domain2dn)
  AC_CHECK_FUNCS(ldap_result ldap_parse_result ldap_msgfree ldap_memfree)
  AC_CHECK_FUNCS(ldap_get_dn ldap_first_attribute ldap_next_attribute)
  AC_CHECK_FUNCS(ldap_get_values ldap_value_free)
  AC_CHECK_FUNCS(ldap_get_values_len ldap_count_values_len ldap_value_free_len)
  AC_CHECK_FUNCS(ldap_err2string ldap_abandon)
  AC_CHECK_FUNCS(ldap_control_create ldap_create_control ldap_control_find)
  AC_CHECK_FUNCS(ldap_controls_free ldap_control_free ldap_get_entry_controls)
  AC_CHECK_FUNCS(ldap_parse_passwordpolicy_control ldap_passwordpolicy_err2txt)
  AC_CHECK_FUNCS(ldap_create_deref_control ldap_create_deref_control_value)
  AC_CHECK_FUNCS(ldap_parse_deref_control ldap_derefresponse_free)

  # replace ldap_create_page_control() and ldap_parse_page_control()
  AC_CHECK_FUNCS(ldap_create_page_control ldap_parse_page_control,, [AC_LIBOBJ(pagectrl)])
  AC_CHECK_DECLS(ldap_extended_operation_s,,, [
      #if HAVE_LBER_H
      #include <lber.h>
      #endif
      #include <ldap.h>])

  # replace other ldap functions
  AC_REPLACE_FUNCS(ldap_passwd_s)
  AC_REPLACE_FUNCS(ldap_initialize)
  AC_REPLACE_FUNCS(ldap_parse_passwordpolicy_control)
  AC_REPLACE_FUNCS(ldap_passwordpolicy_err2txt)

  # check the number of arguments that ldap_set_rebind_proc() uses
  AC_CACHE_CHECK(
      [number of arguments to ldap_set_rebind_proc],
      nss_ldapd_cv_ldap_set_rebind_proc_args,
      [AC_COMPILE_IFELSE(
          [AC_LANG_PROGRAM([[
              #include <lber.h>
              #include <ldap.h>
              ]], [[
              ldap_set_rebind_proc(0, 0, 0);
              ]])],
          [nss_ldapd_cv_ldap_set_rebind_proc_args=3],
          [nss_ldapd_cv_ldap_set_rebind_proc_args=2]) ])
  AC_DEFINE_UNQUOTED(LDAP_SET_REBIND_PROC_ARGS, $nss_ldapd_cv_ldap_set_rebind_proc_args,
                     [Define to the number of arguments to ldap_set_rebindproc.])

  # check the return type of ldap_set_rebind_proc()
  AC_CACHE_CHECK(
      [return type of ldap_set_rebind_proc],
      nss_ldapd_cv_ldap_set_rebind_proc_type,
      [AC_COMPILE_IFELSE(
          [AC_LANG_PROGRAM([[
              #include <lber.h>
              #include <ldap.h>
              ]], [[
              #if LDAP_SET_REBIND_PROC_ARGS == 3
              return ldap_set_rebind_proc(0, 0, 0);
              #else
              return ldap_set_rebind_proc(0, 0);
              #endif
              ]])],
          [nss_ldapd_cv_ldap_set_rebind_proc_type=int],
          [nss_ldapd_cv_ldap_set_rebind_proc_type=void]) ])
  if test "x$nss_ldapd_cv_ldap_set_rebind_proc_type" = "xvoid"
  then
    AC_DEFINE(LDAP_SET_REBIND_PROC_RETURNS_VOID, 1,
              [Define to 1 if ldap_set_rebind_proc() returns void.])
  fi

  # check for broken implementations of ldap_create_deref_control()
  if test "x$ac_cv_func_ldap_create_deref_control" = "xyes"
  then
    # this bug cannot be determined on compile time so we run a
    # small test program
    AC_CACHE_CHECK(
        [ldap_create_deref_control() implementation],
        nslcd_cv_ldap_create_deref_control_working,
            [AC_RUN_IFELSE(
                [AC_LANG_PROGRAM([[
                    #include <stdio.h>
                    #include <lber.h>
                    #include <ldap.h>
                    ]], [[
                    int rc;
                    LDAP *ld;
                    LDAPControl *ctrls[2] = {NULL, NULL};
                    struct LDAPDerefSpec ds[2];
                    char *attrs[2] = {"uid", NULL};
                    ld = ldap_init("localhost", LDAP_PORT);
                    if (ld == NULL)
                    {
                      fprintf(stderr, "ldap_init() failed\n");
                      return 2;
                    }
                    ds[0].derefAttr = "member";
                    ds[0].attributes = attrs;
                    ds[1].derefAttr = NULL;
                    rc = ldap_create_deref_control(ld, ds, 0, &ctrls[0]);
                    if (rc != LDAP_SUCCESS)
                    {
                      fprintf(stderr, "ldap_create_deref_control() failed: %s\n",
                              ldap_err2string(rc));
                      return 2;
                    }
                    if (ldap_control_find(LDAP_CONTROL_X_DEREF, ctrls, NULL) != NULL)
                      return 0;
                    if (ldap_control_find(LDAP_CONTROL_PAGEDRESULTS, ctrls, NULL) != NULL)
                    {
                      fprintf(stderr, "ldap_create_deref_control() created LDAP_CONTROL_PAGEDRESULTS control\n");
                      return 3;
                    }
                    fprintf(stderr, "ldap_create_deref_control() created unknown control\n");
                    return 2;
                    ]])],
                [nslcd_cv_ldap_create_deref_control_working=ok],
                [if test "$?" -eq 3; then nslcd_cv_ldap_create_deref_control_working=broken
                 else nslcd_cv_ldap_create_deref_control_working=unknown; fi],
                [nslcd_cv_ldap_create_deref_control_working=cross])])
    if test "x$nslcd_cv_ldap_create_deref_control_working" != "xok"
    then
      AC_MSG_NOTICE([using replacement ldap_create_deref_control()])
      AC_LIBOBJ(derefctrl)
      AC_DEFINE(REPLACE_LDAP_CREATE_DEREF_CONTROL, 1,
                [Define to 1 if ldap_create_deref_control() is broken.])
    fi
  fi

  # save nslcd LIBS and CFLAGS and restore originals
  nslcd_CFLAGS="$CFLAGS"
  nslcd_LIBS="$LIBS"
  CFLAGS="$nslcd_save_CFLAGS"
  LIBS="$nslcd_save_LIBS"

  AC_SUBST(nslcd_LIBS)
fi

# pynslcd-specific tests
if test "x$enable_pynslcd" = "xyes"
then
  # check Python interpreter
  AM_PATH_PYTHON(2.5,, AC_MSG_ERROR([Python is required]))
  AX_PYTHON_MODULE(daemon)
  AX_PYTHON_MODULE(fcntl)
  AX_PYTHON_MODULE(fnmatch)
  AX_PYTHON_MODULE(ldap)
  AX_PYTHON_MODULE(sqlite3)
  # required by ldap.controls.ppolicy:
  AX_PYTHON_MODULE(pyasn1)
  AX_PYTHON_MODULE(pyasn1_modules)
  if test "x$HAVE_PYMOD_DAEMON" != "xyes" || \
     test "x$HAVE_PYMOD_FCNTL" != "xyes" || \
     test "x$HAVE_PYMOD_FNMATCH" != "xyes" || \
     test "x$HAVE_PYMOD_LDAP" != "xyes" || \
     test "x$HAVE_PYMOD_SQLITE3" != "xyes" || \
     test "x$HAVE_PYMOD_PYASN1" != "xyes" || \
     test "x$HAVE_PYMOD_PYASN1_MODULES" != "xyes"
  then
    AC_MSG_WARN(Required Python modules missing)
  fi
  # optional modules
  AX_PYTHON_MODULE(setproctitle)
fi

AM_CONDITIONAL([NSS_FLAVOUR_GLIBC], [test "x${with_nss_flavour}" = xglibc])
AM_CONDITIONAL([NSS_FLAVOUR_SOLARIS], [test "x${with_nss_flavour}" = xsolaris])
AM_CONDITIONAL([NSS_FLAVOUR_FREEBSD], [test "x${with_nss_flavour}" = xfreebsd])

# generate files
AC_CONFIG_FILES([Makefile compat/Makefile common/Makefile nss/Makefile
                 pam/Makefile utils/Makefile nslcd/Makefile pynslcd/Makefile
                 man/Makefile tests/Makefile])
AC_CONFIG_FILES([pynslcd/constants.py], [[
(
  echo ''
  echo '# The following is automatically generated from nslcd.h.'
  echo '# See that file for details.'
  echo ''
  sed -n 's| */\*.*\*/ *||;s/^.define  *\(NSLCD_[A-Z_]*\)  */\1 = /p' "$srcdir"/nslcd.h
) >> pynslcd/constants.py]])
AC_OUTPUT