summaryrefslogtreecommitdiff
path: root/configure.in
blob: 486c612de9b70c286684edbee32ffd5786b2027d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
dnl -*- mode: m4 -*-
AC_PREREQ(2.52)

m4_define([dbus_major_version], [1])
m4_define([dbus_minor_version], [2])
m4_define([dbus_micro_version], [24])
m4_define([dbus_version],
          [dbus_major_version.dbus_minor_version.dbus_micro_version])
AC_INIT(dbus, [dbus_version])

AC_CANONICAL_HOST

AM_INIT_AUTOMAKE([1.9 tar-ustar])
AM_CONFIG_HEADER(config.h)

# Honor aclocal flags
ACLOCAL="$ACLOCAL $ACLOCAL_FLAGS"

GETTEXT_PACKAGE=dbus-1
AC_SUBST(GETTEXT_PACKAGE)
AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE,"$GETTEXT_PACKAGE",[The name of the gettext domain])

 ## must come before we use the $USE_MAINTAINER_MODE variable later
AM_MAINTAINER_MODE

m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])

# libtool versioning - this applies to libdbus
#
# See http://sources.redhat.com/autobook/autobook/autobook_91.html#SEC91 for details
#

## increment if the interface has additions, changes, removals.
LT_CURRENT=7

## increment any time the source changes; set to
##  0 if you increment CURRENT
LT_REVISION=0

## increment if any interfaces have been added; set to 0
## if any interfaces have been changed or removed. removal has
## precedence over adding, so set to 0 if both happened.
LT_AGE=4

AC_SUBST(LT_CURRENT)
AC_SUBST(LT_REVISION)
AC_SUBST(LT_AGE)

DBUS_MAJOR_VERSION=dbus_major_version
DBUS_MINOR_VERSION=dbus_minor_version
DBUS_MICRO_VERSION=dbus_micro_version
DBUS_VERSION=dbus_major_version.dbus_minor_version.dbus_micro_version

AC_SUBST(DBUS_MAJOR_VERSION)
AC_SUBST(DBUS_MINOR_VERSION)
AC_SUBST(DBUS_MICRO_VERSION)
AC_SUBST(DBUS_VERSION)

AC_PROG_CC
AM_PROG_CC_C_O
AC_PROG_CXX
AC_ISC_POSIX
AC_HEADER_STDC
AC_C_INLINE
AM_PROG_LIBTOOL

AC_ARG_ENABLE(tests, AS_HELP_STRING([--enable-tests],[enable unit test code]),enable_tests=$enableval,enable_tests=$USE_MAINTAINER_MODE)
AC_ARG_ENABLE(ansi, AS_HELP_STRING([--enable-ansi],[enable -ansi -pedantic gcc flags]),enable_ansi=$enableval,enable_ansi=no)
AC_ARG_ENABLE(verbose-mode, AS_HELP_STRING([--enable-verbose-mode],[support verbose debug mode]),enable_verbose_mode=$enableval,enable_verbose_mode=$USE_MAINTAINER_MODE)
AC_ARG_ENABLE(asserts, AS_HELP_STRING([--enable-asserts],[include assertion checks]),enable_asserts=$enableval,enable_asserts=$USE_MAINTAINER_MODE)
AC_ARG_ENABLE(checks, AS_HELP_STRING([--enable-checks],[include sanity checks on public API]),enable_checks=$enableval,enable_checks=yes)
AC_ARG_ENABLE(xml-docs, AS_HELP_STRING([--enable-xml-docs],[build XML documentation (requires xmlto)]),enable_xml_docs=$enableval,enable_xml_docs=auto)
AC_ARG_ENABLE(doxygen-docs, AS_HELP_STRING([--enable-doxygen-docs],[build DOXYGEN documentation (requires Doxygen)]),enable_doxygen_docs=$enableval,enable_doxygen_docs=auto)
AC_ARG_ENABLE(gcov, AS_HELP_STRING([--enable-gcov],[compile with coverage profiling instrumentation (gcc only)]),enable_gcov=$enableval,enable_gcov=no)
AC_ARG_ENABLE(abstract-sockets, AS_HELP_STRING([--enable-abstract-sockets],[use abstract socket namespace (linux only)]),enable_abstract_sockets=$enableval,enable_abstract_sockets=auto)
AC_ARG_ENABLE(selinux, AS_HELP_STRING([--enable-selinux],[build with SELinux support]),enable_selinux=$enableval,enable_selinux=auto)
AC_ARG_ENABLE(libaudit,AS_HELP_STRING([--enable-libaudit],[build audit daemon support for SELinux]),enable_libaudit=$enableval,enable_libaudit=auto)
AC_ARG_ENABLE(dnotify, AS_HELP_STRING([--enable-dnotify],[build with dnotify support (linux only)]),enable_dnotify=$enableval,enable_dnotify=auto)
AC_ARG_ENABLE(inotify, AS_HELP_STRING([--enable-inotify],[build with inotify support (linux only)]),enable_inotify=$enableval,enable_inotify=auto)
AC_ARG_ENABLE(kqueue, AS_HELP_STRING([--enable-kqueue],[build with kqueue support]),enable_kqueue=$enableval,enable_kqueue=auto)
AC_ARG_ENABLE(console-owner-file, AS_HELP_STRING([--enable-console-owner-file],[enable console owner file]),enable_console_owner_file=$enableval,enable_console_owner_file=auto)
AC_ARG_ENABLE(userdb-cache, AS_HELP_STRING([--enable-userdb-cache],[build with userdb-cache support]),enable_userdb_cache=$enableval,enable_userdb_cache=yes)

AC_ARG_WITH(xml, AS_HELP_STRING([--with-xml=[libxml/expat]],[XML library to use]))
AC_ARG_WITH(init-scripts, AS_HELP_STRING([--with-init-scripts=[redhat]],[Style of init scripts to install]))
AC_ARG_WITH(session-socket-dir, AS_HELP_STRING([--with-session-socket-dir=[dirname]],[Where to put sockets for the per-login-session message bus]))
AC_ARG_WITH(test-socket-dir, AS_HELP_STRING([--with-test-socket-dir=[dirname]],[Where to put sockets for make check]))
AC_ARG_WITH(system-pid-file, AS_HELP_STRING([--with-system-pid-file=[pidfile]],[PID file for systemwide daemon]))
AC_ARG_WITH(system-socket, AS_HELP_STRING([--with-system-socket=[filename]],[UNIX domain socket for systemwide daemon]))
AC_ARG_WITH(console-auth-dir, AS_HELP_STRING([--with-console-auth-dir=[dirname]],[directory to check for console ownerhip]))
AC_ARG_WITH(console-owner-file, AS_HELP_STRING([--with-console-owner-file=[filename]],[file whose owner determines current console owner]))
AC_ARG_WITH(dbus_user, AS_HELP_STRING([--with-dbus-user=<user>],[User for running the DBUS daemon (messagebus)]))
AC_ARG_WITH(dbus_daemondir, AS_HELP_STRING([--with-dbus-daemondir=[dirname]],[Directory for installing the DBUS daemon]))

AC_DEFINE(DBUS_UNIX,1,[dbus on unix])

dnl DBUS_BUILD_TESTS controls unit tests built in to .c files 
dnl and also some stuff in the test/ subdir
AM_CONDITIONAL(DBUS_BUILD_TESTS, test x$enable_tests = xyes)
if test x$enable_tests = xyes; then
    AC_DEFINE(DBUS_BUILD_TESTS,1,[Build test code])
fi

if test x$enable_verbose_mode = xyes; then
    AC_DEFINE(DBUS_ENABLE_VERBOSE_MODE,1,[Support a verbose mode])
fi

if test x$enable_asserts = xno; then
    AC_DEFINE(DBUS_DISABLE_ASSERT,1,[Disable assertion checking])
    AC_DEFINE(G_DISABLE_ASSERT,1,[Disable GLib assertion macros])
    R_DYNAMIC_LDFLAG=""
else
    # -rdynamic is needed for glibc's backtrace_symbols to work.
    # No clue how much overhead this adds, but it's useful 
    # to do this on any assertion failure,
    # so for now it's enabled anytime asserts are (currently not
    # in production builds).

    # To get -rdynamic you pass -export-dynamic to libtool.
    AC_DEFINE(DBUS_BUILT_R_DYNAMIC,1,[whether -export-dynamic was passed to libtool])
    R_DYNAMIC_LDFLAG=-export-dynamic
fi
AC_SUBST(R_DYNAMIC_LDFLAG)

if test x$enable_checks = xno; then
    AC_DEFINE(DBUS_DISABLE_CHECKS,1,[Disable public API sanity checking])
    AC_DEFINE(G_DISABLE_CHECKS,1,[Disable GLib public API sanity checking])
fi

if test x$enable_userdb_cache = xyes; then
    AC_DEFINE(DBUS_ENABLE_USERDB_CACHE,1,[Build with caching of user data])
fi

if test x$enable_gcov = xyes; then
     ## so that config.h changes when you toggle gcov support
     AC_DEFINE_UNQUOTED(DBUS_GCOV_ENABLED, 1, [Defined if gcov is enabled to force a rebuild due to config.h changing])

     AC_MSG_CHECKING([for gcc 3.3 version of gcov file format])
     have_gcc33_gcov=no
     AC_RUN_IFELSE( [AC_LANG_PROGRAM( , [[ if (__GNUC__ >=3 && __GNUC_MINOR__ >= 3) exit (0); else exit (1); ]])],  
                   have_gcc33_gcov=yes)
     if test x$have_gcc33_gcov = xyes ; then
         AC_DEFINE_UNQUOTED(DBUS_HAVE_GCC33_GCOV, 1, [Defined if we have gcc 3.3 and thus the new gcov format])
     fi
     AC_MSG_RESULT($have_gcc33_gcov)
fi
AM_CONDITIONAL(DBUS_GCOV_ENABLED, test x$enable_gcov = xyes)

# glibc21.m4 serial 3
dnl Copyright (C) 2000-2002, 2004 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

# Test for the GNU C Library, version 2.1 or newer.
# From Bruno Haible.

AC_CACHE_CHECK(whether we are using the GNU C Library 2.1 or newer,
  ac_cv_gnu_library_2_1,
  [AC_EGREP_CPP([Lucky GNU user],
    [
#include <features.h>
#ifdef __GNU_LIBRARY__
 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2)
  Lucky GNU user
 #endif
#endif
    ],
    ac_cv_gnu_library_2_1=yes,
    ac_cv_gnu_library_2_1=no)
  ]
)

#### Integer sizes 

AC_CHECK_SIZEOF(char)
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(void *)
AC_CHECK_SIZEOF(long long)
AC_CHECK_SIZEOF(__int64)

### See what our 64 bit type is called
AC_MSG_CHECKING([64-bit integer type])

case 8 in
$ac_cv_sizeof_int)
  dbusint64=int
  dbusint64_constant='(val)'
  dbusuint64_constant='(val)'
  dbusint64_printf_modifier='""'
  ;;
$ac_cv_sizeof_long)
  dbusint64=long
  dbusint64_constant='(val##L)'
  dbusuint64_constant='(val##UL)'
  dbusint64_printf_modifier='"l"'
  ;;
$ac_cv_sizeof_long_long)
  dbusint64='long long'
  dbusint64_constant='(val##LL)'
  dbusuint64_constant='(val##ULL)'
  # Ideally we discover what the format is, but this is
  # only used in verbose mode, so eh...
  if test x"$ac_cv_gnu_library_2_1" = xyes; then
    dbusint64_printf_modifier='"ll"'
  fi
  ;;
$ac_cv_sizeof___int64)
  dbusint64=__int64
  dbusint64_constant='(val##i64)'
  dbusuint64_constant='(val##ui64)'
  # See above case
  if test x"$ac_cv_gnu_library_2_1" = xyes; then
    dbusint64_printf_modifier='"ll"'
  fi
  ;;
esac

if test -z "$dbusint64" ; then
        DBUS_INT64_TYPE="no_int64_type_detected"
        DBUS_HAVE_INT64=0
        DBUS_INT64_CONSTANT=
        DBUS_UINT64_CONSTANT=
        AC_MSG_RESULT([none found])
else
        DBUS_INT64_TYPE="$dbusint64"
        DBUS_HAVE_INT64=1
        DBUS_INT64_CONSTANT="$dbusint64_constant"
        DBUS_UINT64_CONSTANT="$dbusuint64_constant"
	if test x"$dbusint64_printf_modifier" != x; then
		AC_DEFINE_UNQUOTED(DBUS_INT64_PRINTF_MODIFIER, [$dbusint64_printf_modifier], [Define to printf modifier for 64 bit integer type])
	fi
        AC_MSG_RESULT($DBUS_INT64_TYPE)
fi

AC_SUBST(DBUS_INT64_TYPE)
AC_SUBST(DBUS_INT64_CONSTANT)
AC_SUBST(DBUS_UINT64_CONSTANT)
AC_SUBST(DBUS_HAVE_INT64)

### see what 32-bit int is called
AC_MSG_CHECKING([32-bit integer type])

case 4 in
$ac_cv_sizeof_short)
  dbusint32=int
  ;;
$ac_cv_sizeof_int)
  dbusint32=int
  ;;
$ac_cv_sizeof_long)
  dbusint32=long
  ;;
esac

if test -z "$dbusint32" ; then
        DBUS_INT32_TYPE="no_int32_type_detected"
        AC_MSG_ERROR([No 32-bit integer type found])
else
        DBUS_INT32_TYPE="$dbusint32"
        AC_MSG_RESULT($DBUS_INT32_TYPE)
fi

AC_SUBST(DBUS_INT32_TYPE)

### see what 16-bit int is called
AC_MSG_CHECKING([16-bit integer type])

case 2 in
$ac_cv_sizeof_short)
  dbusint16=short
  ;;
$ac_cv_sizeof_int)
  dbusint16=int
  ;;
esac

if test -z "$dbusint16" ; then
        DBUS_INT16_TYPE="no_int16_type_detected"
        AC_MSG_ERROR([No 16-bit integer type found])
else
        DBUS_INT16_TYPE="$dbusint16"
        AC_MSG_RESULT($DBUS_INT16_TYPE)
fi

AC_SUBST(DBUS_INT16_TYPE)

## byte order
case $host_os in
	darwin*)
		# check at compile-time, so that it is possible to build universal
		# (with multiple architectures at once on the compile line)
		AH_VERBATIM([WORDS_BIGENDIAN_DARWIN], [
			/* Use the compiler-provided endianness defines to allow universal compiling. */
			#if defined(__BIG_ENDIAN__)
			#define WORDS_BIGENDIAN 1
			#endif
		])
		;;
	*)
		AC_C_BIGENDIAN
		;;
esac

dnl **********************************
dnl *** va_copy checks (from GLib) ***
dnl **********************************
dnl we currently check for all three va_copy possibilities, so we get
dnl all results in config.log for bug reports.
AC_CACHE_CHECK([for an implementation of va_copy()],dbus_cv_va_copy,[
	AC_LINK_IFELSE([#include <stdarg.h>
#include <stdlib.h>
	static void f (int i, ...) {
	va_list args1, args2;
	va_start (args1, i);
	va_copy (args2, args1);
	if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
	  exit (1);
	va_end (args1); va_end (args2);
	}
	int main() {
	  f (0, 42);
	  return 0;
	}],
	[dbus_cv_va_copy=yes],
	[dbus_cv_va_copy=no])
])
AC_CACHE_CHECK([for an implementation of __va_copy()],dbus_cv___va_copy,[
	AC_LINK_IFELSE([#include <stdarg.h>
#include <stdlib.h>
	static void f (int i, ...) {
	va_list args1, args2;
	va_start (args1, i);
	__va_copy (args2, args1);
	if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
	  exit (1);
	va_end (args1); va_end (args2);
	}
	int main() {
	  f (0, 42);
	  return 0;
	}],
	[dbus_cv___va_copy=yes],
	[dbus_cv___va_copy=no])
])

if test "x$dbus_cv_va_copy" = "xyes"; then
  dbus_va_copy_func=va_copy
else if test "x$dbus_cv___va_copy" = "xyes"; then
  dbus_va_copy_func=__va_copy
fi
fi

if test -n "$dbus_va_copy_func"; then
  AC_DEFINE_UNQUOTED(DBUS_VA_COPY,$dbus_va_copy_func,[A 'va_copy' style function])
fi

AC_LANG_PUSH(C)
AC_CACHE_CHECK([whether va_lists can be copied by value],
	dbus_cv_va_val_copy,
	[AC_RUN_IFELSE([AC_LANG_PROGRAM(
[[
	#include <stdarg.h>
	#include <stdlib.h>
]],
[[
	static void f (int i, ...) {
	va_list args1, args2;
	va_start (args1, i);
	args2 = args1;
	if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
	  exit (1);
	va_end (args1); va_end (args2);
	}
	int main() {
	  f (0, 42);
	  return 0;
	}
]])],
	[dbus_cv_va_val_copy=yes],
	[dbus_cv_va_val_copy=no],
	[dbus_cv_va_val_copy=yes])
])
AC_LANG_POP(C)

if test "x$dbus_cv_va_val_copy" = "xno"; then
  AC_DEFINE(DBUS_VA_COPY_AS_ARRAY,1, ['va_lists' cannot be copies as values])
fi


#### Atomic integers (checks by Sebastian Wilhelmi for GLib)
AC_MSG_CHECKING([whether to use inline assembler routines for atomic integers])
have_atomic_inc_cond=0
if test x"$GCC" = xyes; then
  if test "x$enable_ansi" = "xyes"; then
    AC_MSG_RESULT([no])
  else
    case $host_cpu in
      i386)
        AC_MSG_RESULT([no])
        ;;
      i?86)
        case $host_os in
          darwin*)
            AC_MSG_RESULT([darwin])
            # check at compile-time, so that it is possible to build universal
            # (with multiple architectures at once on the compile line)
            have_atomic_inc_cond="(defined(__i386__) || defined(__x86_64__))"
            ;;
          *)
            AC_MSG_RESULT([i486])
            have_atomic_inc_cond=1
            ;;
        esac
        ;;
      *)
        AC_MSG_RESULT([no])
        ;;
    esac
  fi
fi
AC_DEFINE_UNQUOTED([DBUS_USE_ATOMIC_INT_486_COND], [$have_atomic_inc_cond],
                   [Always defined; expands to 1 if we should use atomic integer implementation for 486, else 0])
AC_DEFINE_UNQUOTED(DBUS_HAVE_ATOMIC_INT_COND, [$have_atomic_inc_cond],
                   [Always defined; expands to 1 if we have an atomic integer implementation, else 0])

#### Various functions
AC_SEARCH_LIBS(socket,[socket network])
AC_CHECK_FUNC(gethostbyname,,[AC_CHECK_LIB(nsl,gethostbyname)])

AC_CHECK_FUNCS(vsnprintf vasprintf nanosleep usleep setenv clearenv unsetenv socketpair getgrouplist fpathconf setrlimit poll)

#### Check for broken poll; taken from Glib's configure

AC_MSG_CHECKING([for broken poll])
AC_RUN_IFELSE([AC_LANG_SOURCE([[
    #include <stdlib.h>
    #include <fcntl.h>
    #include <poll.h>
    #ifdef HAVE_SYS_POLL_H
    #include <sys/poll.h>
    #endif
    int main(void) {
      struct pollfd fds[1];
      int fd;
      fd = open("/dev/null", 1);
      fds[0].fd = fd;
      fds[0].events = POLLIN;
      fds[0].revents = 0;
      if (poll(fds, 1, 0) < 0 || (fds[0].revents & POLLNVAL) != 0) {
            exit(1);  /* Does not work for devices -- fail */
      }
      exit(0);
    }]])],
  [broken_poll=no],
  [broken_poll=yes
   AC_DEFINE(BROKEN_POLL,1,[poll doesn't work on devices])],
  [broken_poll="no (cross compiling)"])
AC_MSG_RESULT($broken_poll)

AC_MSG_CHECKING(for dirfd)
AC_TRY_LINK([
#include <sys/types.h>
#include <dirent.h>
],[
DIR *dirp;
dirp = opendir(".");
dirfd(dirp);
closedir(dirp);
], 
dbus_have_dirfd=yes, dbus_have_dirfd=no)
AC_MSG_RESULT($dbus_have_dirfd)
if test "$dbus_have_dirfd" = yes; then
	AC_DEFINE(HAVE_DIRFD,1,[Have dirfd function])
else
	AC_MSG_CHECKING(for DIR *dirp->dd_fd)    
	AC_TRY_LINK([
#include <sys/types.h>
#include <dirent.h>
	],[
DIR *dirp;
int fd;
dirp = opendir(".");
fd = dirp->dd_fd;
closedir(dirp);
	],
	dbus_have_ddfd=yes, dbus_have_ddfd=no)
	AC_MSG_RESULT($dbus_have_ddfd)
	if test "$dbus_have_ddfd" = yes; then
		AC_DEFINE(HAVE_DDFD,1,[Have the ddfd member of DIR])
	fi
fi

AC_CHECK_HEADERS(execinfo.h, [AC_CHECK_FUNCS(backtrace)])

AC_CHECK_HEADERS(errno.h)

AC_CHECK_HEADERS(unistd.h)

# Add -D_POSIX_PTHREAD_SEMANTICS if on Solaris
#
case $host_os in
    solaris*)
       CFLAGS="$CFLAGS -D_POSIX_PTHREAD_SEMANTICS" ;;
esac
    
# checking for a posix version of getpwnam_r
# if we are cross compiling and can not run the test
# assume getpwnam_r is the posix version
# it is up to the person cross compiling to change
# this behavior if desired
AC_LANG_PUSH(C)
AC_CACHE_CHECK([for posix getpwnam_r],
		ac_cv_func_posix_getpwnam_r,
		[AC_RUN_IFELSE([AC_LANG_PROGRAM(
[[
#include <errno.h>
#include <pwd.h>
]],
[[
    char buffer[10000];
    struct passwd pwd, *pwptr = &pwd;
    int error;
    errno = 0;
    error = getpwnam_r ("", &pwd, buffer, 
                        sizeof (buffer), &pwptr);
   return (error < 0 && errno == ENOSYS) 
	   || error == ENOSYS; 
]])],
	[ac_cv_func_posix_getpwnam_r=yes],
	[ac_cv_func_posix_getpwnam_r=no],
        [ac_cv_func_posix_getpwnam_r=yes]
)])
AC_LANG_POP(C)

if test "$ac_cv_func_posix_getpwnam_r" = yes; then
	AC_DEFINE(HAVE_POSIX_GETPWNAM_R,1,
		[Have POSIX function getpwnam_r])
else
	AC_CACHE_CHECK([for nonposix getpwnam_r],
		ac_cv_func_nonposix_getpwnam_r,
		[AC_TRY_LINK([#include <pwd.h>],
                      	[char buffer[10000];
                       	struct passwd pwd;
                       	getpwnam_r ("", &pwd, buffer, 
                               		sizeof (buffer));],
			[ac_cv_func_nonposix_getpwnam_r=yes],
			[ac_cv_func_nonposix_getpwnam_r=no])])
		if test "$ac_cv_func_nonposix_getpwnam_r" = yes; then
		AC_DEFINE(HAVE_NONPOSIX_GETPWNAM_R,1,
			[Have non-POSIX function getpwnam_r])
	fi
fi

dnl check for socklen_t
AC_MSG_CHECKING(whether socklen_t is defined)
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
],[
socklen_t foo;
foo = 1;
],dbus_have_socklen_t=yes,dbus_have_socklen_t=no)
AC_MSG_RESULT($dbus_have_socklen_t)

if test "x$dbus_have_socklen_t" = "xyes"; then
    AC_DEFINE(HAVE_SOCKLEN_T,1,[Have socklen_t type])
fi

dnl check for writev header and writev function so we're 
dnl good to go if HAVE_WRITEV gets defined.
AC_CHECK_HEADERS(sys/uio.h, [AC_CHECK_FUNCS(writev)])

dnl needed on darwin for NAME_MAX
AC_CHECK_HEADERS(sys/syslimits.h)

dnl check for flavours of varargs macros (test from GLib)
AC_MSG_CHECKING(for ISO C99 varargs macros in C)
AC_TRY_COMPILE([],[
int a(int p1, int p2, int p3);
#define call_a(...) a(1,__VA_ARGS__)
call_a(2,3);
],dbus_have_iso_c_varargs=yes,dbus_have_iso_c_varargs=no)
AC_MSG_RESULT($dbus_have_iso_c_varargs)

AC_MSG_CHECKING(for GNUC varargs macros)
AC_TRY_COMPILE([],[
int a(int p1, int p2, int p3);
#define call_a(params...) a(1,params)
call_a(2,3);
],dbus_have_gnuc_varargs=yes,dbus_have_gnuc_varargs=no)
AC_MSG_RESULT($dbus_have_gnuc_varargs)

dnl Output varargs tests
if test x$dbus_have_iso_c_varargs = xyes; then
    AC_DEFINE(HAVE_ISO_VARARGS,1,[Have ISO C99 varargs macros])
fi
if test x$dbus_have_gnuc_varargs = xyes; then
    AC_DEFINE(HAVE_GNUC_VARARGS,1,[Have GNU-style varargs macros])
fi

dnl Check for various credentials.
AC_MSG_CHECKING(for struct cmsgcred)
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
],[
struct cmsgcred cred;

cred.cmcred_pid = 0;
],dbus_have_struct_cmsgcred=yes,dbus_have_struct_cmsgcred=no)
AC_MSG_RESULT($dbus_have_struct_cmsgcred)

if test x$dbus_have_struct_cmsgcred = xyes; then
    AC_DEFINE(HAVE_CMSGCRED,1,[Have cmsgcred structure])
fi

AC_CHECK_FUNCS(getpeerucred getpeereid)

#### Abstract sockets

if test x$enable_abstract_sockets = xauto; then
AC_LANG_PUSH(C)
warn_on_xcompile=no
AC_CACHE_CHECK([abstract socket namespace],
		ac_cv_have_abstract_sockets,
		[AC_RUN_IFELSE([AC_LANG_PROGRAM(
[[
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <errno.h>
]],
[[
  int listen_fd;
  struct sockaddr_un addr;
  
  listen_fd = socket (PF_UNIX, SOCK_STREAM, 0);
  
  if (listen_fd < 0)
    {
      fprintf (stderr, "socket() failed: %s\n", strerror (errno));
      exit (1);
    }

  memset (&addr, '\0', sizeof (addr));
  addr.sun_family = AF_UNIX;
  strcpy (addr.sun_path, "X/tmp/dbus-fake-socket-path-used-in-configure-test");
  addr.sun_path[0] = '\0'; /* this is what makes it abstract */
  
  if (bind (listen_fd, (struct sockaddr*) &addr, SUN_LEN (&addr)) < 0)
    {
       fprintf (stderr, "Abstract socket namespace bind() failed: %s\n", 
                strerror (errno));
       exit (1);
    }
  else 
    exit (0);
]])],
              [ac_cv_have_abstract_sockets=yes],
              [ac_cv_have_abstract_sockets=no],
              [
                ac_cv_have_abstract_sockets=no
                warn_on_xcompile=yes
              ]
)])
if test x$warn_on_xcompile = xyes ; then
  AC_MSG_WARN([Cannot check for abstract sockets when cross-compiling, please use --enable-abstract-sockets])
fi
AC_LANG_POP(C)
fi

if test x$enable_abstract_sockets = xyes; then
    if test x$ac_cv_have_abstract_sockets = xno; then
	AC_MSG_ERROR([Abstract sockets explicitly required, and support not detected.])
    fi
fi

if test x$enable_abstract_sockets = xno; then
   ac_cv_have_abstract_sockets=no;
fi

if test x$ac_cv_have_abstract_sockets = xyes ; then
   DBUS_PATH_OR_ABSTRACT=abstract
   AC_DEFINE(HAVE_ABSTRACT_SOCKETS,1,[Have abstract socket namespace])
else
   DBUS_PATH_OR_ABSTRACT=path
fi

# this is used in addresses to prefer abstract, e.g. 
# unix:path=/foo or unix:abstract=/foo 
AC_SUBST(DBUS_PATH_OR_ABSTRACT)

#### Sort out XML library

# see what we have
AC_CHECK_LIB(expat, XML_ParserCreate_MM,
             [ AC_CHECK_HEADERS(expat.h, have_expat=true, have_expat=false) ],
             have_expat=false)

# see what we want to use
dbus_use_libxml=false
dbus_use_expat=false
if test x$with_xml = xexpat; then
        if ! $have_expat ; then
           AC_MSG_ERROR([Explicitly requested expat but expat not found])
        fi
        dbus_use_expat=true
elif test x$with_xml = xlibxml; then
        PKG_CHECK_MODULES(LIBXML, libxml-2.0 >= 2.6.0, have_libxml=true, have_libxml=false)
        if ! $have_libxml ; then
           AC_MSG_ERROR([Explicitly requested libxml but libxml not found])
        fi
        dbus_use_libxml=true
else
        ### expat is the default because libxml can't currently survive 
        ### our brutal OOM-handling unit test setup.
        ### http://bugzilla.gnome.org/show_bug.cgi?id=109368
        if test x$have_expat = xfalse; then
                AC_MSG_ERROR([Could not find expat.h, check config.log for failed attempts])
        fi
	### By default, only use Expat since it's tested and known to work.  If you're a
	### general-purpose OS vendor, please don't enable libxml.  For embedded use
	### if your OS is built around libxml, that's another case.
	dbus_use_expat=true
fi

AM_CONDITIONAL(DBUS_USE_EXPAT, $dbus_use_expat)
AM_CONDITIONAL(DBUS_USE_LIBXML, $dbus_use_libxml)

if $dbus_use_expat; then
   XML_LIBS=-lexpat
   XML_CFLAGS=
fi
if $dbus_use_libxml; then
   XML_LIBS=$LIBXML_LIBS
   XML_CFLAGS=$LIBXML_CFLAGS
fi

# Thread lib detection
AC_CHECK_FUNC(pthread_cond_timedwait,[AC_CHECK_LIB(pthread,pthread_cond_timedwait,
                                                    [THREAD_LIBS="-lpthread"])])
save_libs="$LIBS"
LIBS="$LIBS $THREAD_LIBS"
AC_CHECK_FUNC(pthread_condattr_setclock,have_pthread_condattr_setclock=true,have_pthread_condattr_setclock=false)
if test x$have_pthread_condattr_setclock = xtrue; then
    AC_SEARCH_LIBS([clock_getres],[rt],[THREAD_LIBS="$THREAD_LIBS -lrt"])
    AC_MSG_CHECKING([for CLOCK_MONOTONIC])
    AC_TRY_COMPILE([#include <time.h>
#include <pthread.h>
], [
struct timespec monotonic_timer;
pthread_condattr_t attr;
pthread_condattr_init (&attr);
pthread_condattr_setclock (&attr, CLOCK_MONOTONIC);
clock_getres (CLOCK_MONOTONIC,&monotonic_timer);
], have_clock_monotonic=true, have_clock_monotonic=false)
if test x$have_clock_monotonic = xtrue; then
    AC_MSG_RESULT([found])
    AC_DEFINE(HAVE_MONOTONIC_CLOCK, 1, [Define if we have CLOCK_MONOTONIC])
else
    AC_MSG_RESULT([not found])
fi
fi
LIBS="$save_libs"

# SELinux detection
if test x$enable_selinux = xno ; then
    have_selinux=no;
else
    # See if we have SELinux library
    AC_CHECK_LIB(selinux, is_selinux_enabled, 
                 have_selinux=yes, have_selinux=no)

    # see if we have the SELinux header with the new D-Bus stuff in it
    if test x$have_selinux = xyes ; then
        AC_MSG_CHECKING([for DBUS Flask permissions in selinux/av_permissions.h])
	AC_TRY_COMPILE([#include <selinux/av_permissions.h>],
			[#ifdef DBUS__ACQUIRE_SVC return 0;
			 #else
			 #error DBUS__ACQUIRE_SVC not defined
			 #endif],
                        have_selinux=yes, have_selinux=no)
	AC_MSG_RESULT($have_selinux)
    fi

    if test x$enable_selinux = xauto ; then
        if test x$have_selinux = xno ; then
                AC_MSG_WARN([Sufficiently new SELinux library not found])
        fi
    else 
        if test x$have_selinux = xno ; then
                AC_MSG_ERROR([SElinux explicitly required, and SELinux library not found])
        fi
    fi
fi

AM_CONDITIONAL(HAVE_SELINUX, test x$have_selinux = xyes)

if test x$have_selinux = xyes ; then
    # the selinux code creates threads
    # which requires libpthread even on linux
    AC_CHECK_FUNC(pthread_create,,[AC_CHECK_LIB(pthread,pthread_create,
                                                [SELINUX_THREAD_LIBS="-lpthread"])])

    SELINUX_LIBS="-lselinux $SELINUX_THREAD_LIBS"
    AC_DEFINE(HAVE_SELINUX,1,[SELinux support])
else
    SELINUX_LIBS=
fi

# inotify checks
if test x$enable_inotify = xno ; then
    have_inotify=no;
else
    AC_CHECK_HEADERS(sys/inotify.h, have_inotify=yes, have_inotify=no)
fi

dnl check if inotify backend is enabled
if test x$have_inotify = xyes; then
   AC_DEFINE(DBUS_BUS_ENABLE_INOTIFY,1,[Use inotify])
   AC_CHECK_FUNCS(inotify_init1)
fi

AM_CONDITIONAL(DBUS_BUS_ENABLE_INOTIFY, test x$have_inotify = xyes)

# dnotify checks
if test x$enable_dnotify = xno ; then
    have_dnotify=no;
else
    if test x$have_inotify = xno -a x$host_os = xlinux-gnu -o x$host_os = xlinux; then
        have_dnotify=yes;	
    else
        have_dnotify=no;
    fi
fi

dnl check if dnotify backend is enabled
if test x$have_dnotify = xyes; then
   AC_DEFINE(DBUS_BUS_ENABLE_DNOTIFY_ON_LINUX,1,[Use dnotify on Linux])
fi

AM_CONDITIONAL(DBUS_BUS_ENABLE_DNOTIFY_ON_LINUX, test x$have_dnotify = xyes)

# kqueue checks
if test x$enable_kqueue = xno ; then
    have_kqueue=no
else
    have_kqueue=yes
    AC_CHECK_HEADER(sys/event.h, , have_kqueue=no)
    AC_CHECK_FUNC(kqueue, , have_kqueue=no)

    if test x$enable_kqueue = xyes -a x$have_kqueue = xno; then
        AC_MSG_ERROR(kqueue support explicitly enabled but not available)
    fi
fi

dnl check if kqueue backend is enabled
if test x$have_kqueue = xyes; then
   AC_DEFINE(DBUS_BUS_ENABLE_KQUEUE,1,[Use kqueue])
fi

AM_CONDITIONAL(DBUS_BUS_ENABLE_KQUEUE, test x$have_kqueue = xyes) 

dnl console owner file
if test x$enable_console_owner_file = xno ; then
    have_console_owner_file=no;
else
    case $host_os in
    solaris*)
        have_console_owner_file=yes;
        AC_DEFINE(HAVE_CONSOLE_OWNER_FILE,1,[Have console owner file])
        ;;
    *)
        have_console_owner_file=no;;
    esac
fi

AM_CONDITIONAL(HAVE_CONSOLE_OWNER_FILE, test x$have_console_owner_file = xyes)

# libaudit detection
if test x$enable_libaudit = xno ; then
    have_libaudit=no;
else
    # See if we have audit daemon & capabilities library
    AC_CHECK_LIB(audit, audit_log_user_avc_message, 
                 have_libaudit=yes, have_libaudit=no)
    if test x$have_libaudit = xyes ; then
        AC_CHECK_LIB(cap-ng, capng_clear,
                 have_libaudit=yes, have_libaudit=no)
    fi
fi

AM_CONDITIONAL(HAVE_LIBAUDIT, test x$have_libaudit = xyes)

if test x$have_libaudit = xyes ; then
    SELINUX_LIBS="$SELINUX_LIBS -laudit -lcap-ng"
    AC_DEFINE(HAVE_LIBAUDIT,1,[audit daemon SELinux support])
fi

# Check for ADT API
AC_MSG_CHECKING(for ADT API)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <bsm/adt.h>
adt_user_context = ADT_USER;
]], [[]])], [ check_adt_audit=yes ], [ check_adt_audit=no ])

if test ${check_adt_audit} = yes
then
   AC_DEFINE([HAVE_ADT], [], [Adt audit API])
   ADT_LIBS="-lbsm"
   LIBS="-lbsm $LIBS"
   AC_MSG_RESULT(yes)
else
   AC_MSG_RESULT(no)
fi


#### Set up final flags
DBUS_CLIENT_CFLAGS=
DBUS_CLIENT_LIBS="$THREAD_LIBS"
AC_SUBST(DBUS_CLIENT_CFLAGS)
AC_SUBST(DBUS_CLIENT_LIBS)

DBUS_BUS_CFLAGS="$XML_CFLAGS"
DBUS_BUS_LIBS="$XML_LIBS $SELINUX_LIBS $INTLLIBS $THREAD_LIBS $ADT_LIBS"
AC_SUBST(DBUS_BUS_CFLAGS)
AC_SUBST(DBUS_BUS_LIBS)

DBUS_LAUNCHER_CFLAGS="$XML_CFLAGS"
DBUS_LAUNCHER_LIBS="$XML_LIBS $THREAD_LIBS"
AC_SUBST(DBUS_LAUNCHER_CFLAGS)
AC_SUBST(DBUS_LAUNCHER_LIBS)

DBUS_TEST_CFLAGS=
DBUS_TEST_LIBS="$THREAD_LIBS"
AC_SUBST(DBUS_TEST_CFLAGS)
AC_SUBST(DBUS_TEST_LIBS)

### X11 detection
AC_PATH_XTRA

## for now enable_x11 just tracks have_x11, 
## there's no --enable-x11
if test x$no_x = xyes ; then
   have_x11=no
   enable_x11=no
else
   have_x11=yes
   enable_x11=yes
fi

if test x$enable_x11 = xyes ; then
   AC_DEFINE(DBUS_BUILD_X11,1,[Build X11-dependent code])
   DBUS_X_LIBS="$X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
   DBUS_X_CFLAGS="$X_CFLAGS"
else
   DBUS_X_LIBS=
   DBUS_X_CFLAGS=
fi

AC_SUBST(DBUS_X_CFLAGS)
AC_SUBST(DBUS_X_LIBS)


#### gcc warning flags

cc_supports_flag() {
  AC_MSG_CHECKING(whether $CC supports "$@")
  Cfile=/tmp/foo${$}
  touch ${Cfile}.c
  $CC -c "$@" ${Cfile}.c -o ${Cfile}.o >/dev/null 2>&1
  rc=$?
  rm -f ${Cfile}.c ${Cfile}.o
  case $rc in
    0) AC_MSG_RESULT(yes);;
    *) AC_MSG_RESULT(no);;
  esac
  return $rc
}

ld_supports_flag() {
  AC_MSG_CHECKING([whether $LD supports "$@"])
  AC_TRY_LINK([
    int one(void) { return 1; }
    int two(void) { return 2; }
  ], [ two(); ] , [_ac_ld_flag_supported=yes], [_ac_ld_flag_supported=no])

  if test "$_ac_ld_flag_supported" = "yes"; then
    rm -f conftest.c
    touch conftest.c
    if $CC -c conftest.c; then
      ld_out=`$LD $@ -o conftest conftest.o 2>&1`
      ld_ret=$?
      if test $ld_ret -ne 0 ; then
        _ac_ld_flag_supported=no
      elif echo "$ld_out" | egrep 'option ignored|^usage:|unrecognized option|illegal option' >/dev/null ; then
        _ac_ld_flag_supported=no
      fi
    fi
    rm -f conftest.c conftest.o conftest
  fi

  AC_MSG_RESULT($_ac_ld_flag_supported)
  if test "$_ac_ld_flag_supported" = "yes" ; then
    return 0
  else
    return 1
  fi
}

if test x$USE_MAINTAINER_MODE = xyes; then
  if cc_supports_flag "-Werror"; then
    CFLAGS="$CFLAGS -Werror"
  fi
fi

if test "x$GCC" = "xyes"; then
  changequote(,)dnl
  case " $CFLAGS " in
  *[\ \	]-Wall[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wall" ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-Wchar-subscripts[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wchar-subscripts" ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-Wmissing-declarations[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wmissing-declarations" ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-Wmissing-prototypes[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wmissing-prototypes" ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-Wnested-externs[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wnested-externs" ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-Wpointer-arith[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wpointer-arith" ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-Wcast-align[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wcast-align" ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-Wfloat-equal[\ \	]*) ;;
  *) if cc_supports_flag -Wfloat-equals; then
        CFLAGS="$CFLAGS -Wfloat-equal" 
     fi
     ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-Wdeclaration-after-statement[\ \	]*) ;;
  *) if cc_supports_flag -Wdeclaration-after-statement; then
        CFLAGS="$CFLAGS -Wdeclaration-after-statement"
     fi
     ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-fno-common[\ \	]*) ;;
  *) if cc_supports_flag -fno-common; then
        CFLAGS="$CFLAGS -fno-common"
     fi
     ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-fPIC[\ \	]*) ;;
  *) if cc_supports_flag -fPIC; then
        PIC_CFLAGS="-fPIC"
        if ld_supports_flag -z,relro; then
           PIC_LDFLAGS="-Wl,-z,relro"
        fi
     fi
     ;;
  esac

  case " $CFLAGS " in
  *[\ \	]-fPIE[\ \	]*) ;;
  *) if cc_supports_flag -fPIE; then
        PIE_CFLAGS="-fPIE"
        if ld_supports_flag -z,relro; then
           PIE_LDFLAGS="-pie -Wl,-z,relro"
        else
           PIE_LDFLAGS="-pie"
        fi
     fi
     ;;
  esac
  
  ### Disabled warnings, and compiler flag overrides
  
  # Let's just ignore unused for now
  case " $CFLAGS " in
  *[\ \	]-Wno-unused[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wno-unused" ;;
  esac  
  
  # This group is for warnings we currently don't pass.
  # We would like to, however.  Please fix.
  
  # http://bugs.freedesktop.org/show_bug.cgi?id=17433
  case " $CFLAGS " in
  *[\ \	]-Wno-sign-compare[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -Wno-sign-compare" ;;
  esac
  case " $CFLAGS " in
  *[\ \	]-Wno-pointer-sign[\ \	]*) ;;
  *) if cc_supports_flag -Wno-pointer-sign; then
        CFLAGS="$CFLAGS -Wno-pointer-sign"
     fi
     ;;
  esac
  
  # This one is special - it's not a warning override.
  # http://bugs.freedesktop.org/show_bug.cgi?id=10599
  case " $CFLAGS " in
  *[\ \	]-fno-strict-aliasing[\ \	]*) ;;
  *) CFLAGS="$CFLAGS -fno-strict-aliasing" ;;
  esac
  ### End disabled warnings

  if test "x$enable_ansi" = "xyes"; then
    case " $CFLAGS " in
    *[\ \	]-ansi[\ \	]*) ;;
    *) CFLAGS="$CFLAGS -ansi" ;;
    esac

    case " $CFLAGS " in
    *[\ \	]-D_POSIX_C_SOURCE*) ;;
    *) CFLAGS="$CFLAGS -D_POSIX_C_SOURCE=199309L" ;;
    esac

    case " $CFLAGS " in
    *[\ \	]-D_BSD_SOURCE[\ \	]*) ;;
    *) CFLAGS="$CFLAGS -D_BSD_SOURCE" ;;
    esac

    case " $CFLAGS " in
    *[\ \	]-pedantic[\ \	]*) ;;
    *) CFLAGS="$CFLAGS -pedantic" ;;
    esac    
  fi
  if test x$enable_gcov = xyes; then
    case " $CFLAGS " in
    *[\ \	]-fprofile-arcs[\ \	]*) ;;
    *) CFLAGS="$CFLAGS -fprofile-arcs" ;;
    esac
    case " $CFLAGS " in
    *[\ \	]-ftest-coverage[\ \	]*) ;;
    *) CFLAGS="$CFLAGS -ftest-coverage" ;;
    esac

    ## remove optimization
    CFLAGS=`echo "$CFLAGS" | sed -e 's/-O[0-9]*//g'`
  fi
  changequote([,])dnl
else
  if test x$enable_gcov = xyes; then
    AC_MSG_ERROR([--enable-gcov can only be used with gcc])
  fi
fi

AC_SUBST(PIC_CFLAGS)
AC_SUBST(PIC_LDFLAGS)  
AC_SUBST(PIE_CFLAGS)
AC_SUBST(PIE_LDFLAGS)  

if ld_supports_flag --gc-sections; then
  SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
  CFLAGS="-ffunction-sections -fdata-sections $CFLAGS"
fi
AC_SUBST(SECTION_FLAGS)
AC_SUBST(SECTION_LDFLAGS)
AC_MSG_RESULT($ac_gcsections)

changequote(,)dnl
# compress spaces in flags
CFLAGS=`echo "$CFLAGS" | sed -e 's/ +/ /g'`
CXXFLAGS=`echo "$CXXFLAGS" | sed -e 's/ +/ /g'`
CPPFLAGS=`echo "$CPPFLAGS" | sed -e 's/ +/ /g'`
changequote([,])dnl

### Doxygen Documentation

AC_PATH_PROG(DOXYGEN, doxygen, no)

AC_MSG_CHECKING([whether to build Doxygen documentation])

if test x$DOXYGEN = xno ; then
    have_doxygen=no
else
    have_doxygen=yes
fi

if test x$enable_doxygen_docs = xauto ; then
    if test x$have_doxygen = xno ; then
        enable_doxygen_docs=no
    else
        enable_doxygen_docs=yes
    fi
fi

if test x$enable_doxygen_docs = xyes; then
    if test x$have_doxygen = xno; then
	AC_MSG_ERROR([Building Doxygen docs explicitly required, but Doxygen not found])
    fi
fi

AM_CONDITIONAL(DBUS_DOXYGEN_DOCS_ENABLED, test x$enable_doxygen_docs = xyes)
AC_MSG_RESULT(yes)

### XML Documentation

AC_PATH_PROG(XMLTO, xmlto, no)

AC_MSG_CHECKING([whether to build XML documentation])

if test x$XMLTO = xno ; then
    have_xmlto=no
else
    have_xmlto=yes
fi

if test x$enable_xml_docs = xauto ; then
    if test x$have_xmlto = xno ; then
        enable_xml_docs=no
    else
        enable_xml_docs=yes
    fi
fi

if test x$enable_xml_docs = xyes; then
    if test x$have_xmlto = xno; then
	AC_MSG_ERROR([Building XML docs explicitly required, but xmlto not found])
    fi
fi

AM_CONDITIONAL(DBUS_XML_DOCS_ENABLED, test x$enable_xml_docs = xyes)
AC_MSG_RESULT(yes)

#### Have to go $localstatedir->$prefix/var->/usr/local/var

#### find the actual value for $prefix that we'll end up with
##   (I know this is broken and should be done in the Makefile, but
##    that's a major pain and almost nobody actually seems to care)
AS_AC_EXPAND(EXPANDED_LOCALSTATEDIR, "$localstatedir")
AS_AC_EXPAND(EXPANDED_SYSCONFDIR, "$sysconfdir")
AS_AC_EXPAND(EXPANDED_BINDIR, "$bindir")
AS_AC_EXPAND(EXPANDED_LIBDIR, "$libdir")
AS_AC_EXPAND(EXPANDED_LIBEXECDIR, "$libexecdir")
AS_AC_EXPAND(EXPANDED_DATADIR, "$datadir")

#### Check our operating system
operating_system=unknown
if test -f /etc/redhat-release || test -f $EXPANDED_SYSCONFDIR/redhat-release ; then
   operating_system=redhat
fi

if test -f /etc/slackware-version || test -f $EXPANDED_SYSCONFDIR/slackware-version ; then
   operating_system=slackware
fi

#### Sort out init scripts

if test x$with_init_scripts = x; then
    if test xredhat = x$operating_system ; then
        with_init_scripts=redhat
    else
        if test xslackware = x$operating_system ; then
        	with_init_scripts=slackware
	    else
        	with_init_scripts=none
        fi
    fi
fi

AM_CONDITIONAL(DBUS_INIT_SCRIPTS_RED_HAT, test x$with_init_scripts = xredhat)

AM_CONDITIONAL(DBUS_INIT_SCRIPTS_SLACKWARE, test x$with_init_scripts = xslackware)

##### Set up location for system bus socket
if ! test -z "$with_system_socket"; then
   DBUS_SYSTEM_SOCKET=$with_system_socket
else
   DBUS_SYSTEM_SOCKET=${EXPANDED_LOCALSTATEDIR}/run/dbus/system_bus_socket
fi

AC_SUBST(DBUS_SYSTEM_SOCKET)
AC_DEFINE_UNQUOTED(DBUS_SYSTEM_SOCKET,"$DBUS_SYSTEM_SOCKET",[The name of the socket the system bus listens on by default])

## system bus only listens on local domain sockets, and never 
## on an abstract socket (so only root can create the socket)
DBUS_SYSTEM_BUS_DEFAULT_ADDRESS="unix:path=$DBUS_SYSTEM_SOCKET"
AC_SUBST(DBUS_SYSTEM_BUS_DEFAULT_ADDRESS)
AC_DEFINE_UNQUOTED(DBUS_SYSTEM_BUS_DEFAULT_ADDRESS, "$DBUS_SYSTEM_BUS_DEFAULT_ADDRESS",[The default D-Bus address of the system bus])

#### Set up the pid file
if ! test -z "$with_system_pid_file"; then
   DBUS_SYSTEM_PID_FILE=$with_system_pid_file
elif test x$with_init_scripts = xredhat ; then
   DBUS_SYSTEM_PID_FILE=${EXPANDED_LOCALSTATEDIR}/run/messagebus.pid
else
   DBUS_SYSTEM_PID_FILE=${EXPANDED_LOCALSTATEDIR}/run/dbus/pid
fi

AC_SUBST(DBUS_SYSTEM_PID_FILE)

#### Directory to check for console ownership
if ! test -z "$with_console_auth_dir"; then
   DBUS_CONSOLE_AUTH_DIR=$with_console_auth_dir
else
   DBUS_CONSOLE_AUTH_DIR=/var/run/console/
fi

AC_SUBST(DBUS_CONSOLE_AUTH_DIR)
AC_DEFINE_UNQUOTED(DBUS_CONSOLE_AUTH_DIR, "$DBUS_CONSOLE_AUTH_DIR", [Directory to check for console ownerhip])

#### File to check for console ownership
if test x$have_console_owner_file = xyes; then
   if ! test -z "$with_console_owner_file"; then
      DBUS_CONSOLE_OWNER_FILE=$with_console_owner_file
   else
      DBUS_CONSOLE_OWNER_FILE=/dev/console
   fi
else
  DBUS_CONSOLE_OWNER_FILE=
fi

AC_SUBST(DBUS_CONSOLE_OWNER_FILE)
AC_DEFINE_UNQUOTED(DBUS_CONSOLE_OWNER_FILE, "$DBUS_CONSOLE_OWNER_FILE", [File to check for console ownerhip])

#### User to start the system bus as
if test -z "$with_dbus_user" ; then
    DBUS_USER=messagebus
else
    DBUS_USER=$with_dbus_user
fi
AC_SUBST(DBUS_USER)
AC_DEFINE_UNQUOTED(DBUS_USER,"$DBUS_USER", [User for running the system BUS daemon])

#### Direcotry to install data files into
DBUS_DATADIR=$EXPANDED_DATADIR
AC_SUBST(DBUS_DATADIR)
AC_DEFINE_UNQUOTED(DBUS_DATADIR,"$DBUS_DATADIR", [Directory for installing DBUS data files])

#### Directory to install dbus-daemon
if test -z "$with_dbus_daemondir" ; then
    DBUS_DAEMONDIR=$EXPANDED_BINDIR
else
    DBUS_DAEMONDIR=$with_dbus_daemondir
fi
AC_SUBST(DBUS_DAEMONDIR)
AC_DEFINE_UNQUOTED(DBUS_DAEMONDIR,"$DBUS_DAEMONDIR", [Directory for installing the DBUS daemon])

#### Directory to install the other binaries
DBUS_BINDIR="$EXPANDED_BINDIR"
AC_SUBST(DBUS_BINDIR)
AC_DEFINE_UNQUOTED(DBUS_BINDIR,"$DBUS_BINDIR", [Directory for installing the binaries])

#### Directory to install the libexec binaries
DBUS_LIBEXECDIR="$EXPANDED_LIBEXECDIR"
AC_SUBST(DBUS_LIBEXECDIR)
AC_DEFINE_UNQUOTED(DBUS_LIBEXECDIR,"$DBUS_LIBEXECDIR", [Directory for installing the libexec binaries])

#### Tell tests where to find certain stuff in builddir

DBUS_PWD=`pwd`
AC_DEFUN([TEST_PATH], [
TEST_$1=${DBUS_PWD}/test/$2
AC_DEFINE_UNQUOTED(TEST_$1, "$TEST_$1",
                   [Full path to test file test/$2 in builddir])
AC_SUBST(TEST_$1)
])

TEST_PATH(VALID_SERVICE_DIR, data/valid-service-files)
TEST_PATH(INVALID_SERVICE_DIR, data/invalid-service-files)
TEST_PATH(VALID_SERVICE_SYSTEM_DIR, data/valid-service-files-system)
TEST_PATH(INVALID_SERVICE_SYSTEM_DIR, data/invalid-service-files-system)
TEST_PATH(SERVICE_BINARY, test-service)
TEST_PATH(SHELL_SERVICE_BINARY, test-shell-service)
TEST_PATH(EXIT_BINARY, test-exit)
TEST_PATH(SEGFAULT_BINARY, test-segfault)
TEST_PATH(SLEEP_FOREVER_BINARY, test-sleep-forever)
TEST_PATH(PRIVSERVER_BINARY, name-test/test-privserver)

AC_DEFINE_UNQUOTED(TEST_BUS_BINARY, "$DBUS_PWD/bus/dbus-daemon",
                   [Full path to the daemon in the builddir])
AC_SUBST(TEST_BUS_BINARY)

## Export the non-setuid external helper
TEST_LAUNCH_HELPER_BINARY="$DBUS_PWD/bus/dbus-daemon-launch-helper-test"
AC_SUBST(TEST_LAUNCH_HELPER_BINARY)
AC_DEFINE_UNQUOTED(DBUS_TEST_LAUNCH_HELPER_BINARY, "$TEST_LAUNCH_HELPER_BINARY",
                   [Full path to the launch helper test program in the builddir])

#### Find socket directories
if ! test -z "$TMPDIR" ; then
   DEFAULT_SOCKET_DIR=$TMPDIR
elif ! test -z "$TEMP" ; then
   DEFAULT_SOCKET_DIR=$TEMP
elif ! test -z "$TMP" ; then
   DEFAULT_SOCKET_DIR=$TMP
else
   DEFAULT_SOCKET_DIR=/tmp
fi

if ! test -z "$with_test_socket_dir" ; then
   TEST_SOCKET_DIR="$with_test_socket_dir"
else
   TEST_SOCKET_DIR=$DEFAULT_SOCKET_DIR
fi
AC_SUBST(TEST_SOCKET_DIR)
AC_DEFINE_UNQUOTED(DBUS_TEST_SOCKET_DIR, "$TEST_SOCKET_DIR", [Where to put test sockets])

if ! test -z "$with_session_socket_dir" ; then
   DBUS_SESSION_SOCKET_DIR="$with_session_socket_dir"
else
   DBUS_SESSION_SOCKET_DIR=$DEFAULT_SOCKET_DIR
fi
AC_DEFINE_UNQUOTED(DBUS_SESSION_SOCKET_DIR, "$DBUS_SESSION_SOCKET_DIR", [Where per-session bus puts its sockets])
AC_SUBST(DBUS_SESSION_SOCKET_DIR)

AC_DEFINE_UNQUOTED(DBUS_UNIX, "1", [Defined on UNIX and Linux systems and not on Windows])

# darwin needs this to initialize the environment
AC_CHECK_HEADERS(crt_externs.h)
AC_CHECK_FUNC(_NSGetEnviron, [AC_DEFINE(HAVE_NSGETENVIRON, 1, [Define if your system needs _NSGetEnviron to set up the environment])])
AH_VERBATIM(_DARWIN_ENVIRON,
[
#if defined(HAVE_NSGETENVIRON) && defined(HAVE_CRT_EXTERNS_H)
# include <sys/time.h>
# include <crt_externs.h>
# define environ (*_NSGetEnviron())
#endif
])

AC_OUTPUT([
Doxyfile
dbus/dbus-arch-deps.h
bus/system.conf
bus/session.conf
bus/messagebus
bus/rc.messagebus
bus/dbus-daemon.1
Makefile
dbus/Makefile
bus/Makefile
tools/Makefile
test/Makefile
test/name-test/Makefile
doc/Makefile
dbus-1.pc
test/data/valid-config-files/debug-allow-all.conf
test/data/valid-config-files/debug-allow-all-sha1.conf
test/data/valid-config-files-system/debug-allow-all-pass.conf
test/data/valid-config-files-system/debug-allow-all-fail.conf
test/data/valid-service-files/org.freedesktop.DBus.TestSuite.PrivServer.service
test/data/valid-service-files/org.freedesktop.DBus.TestSuiteEchoService.service
test/data/valid-service-files/org.freedesktop.DBus.TestSuiteForkingEchoService.service
test/data/valid-service-files/org.freedesktop.DBus.TestSuiteSegfaultService.service
test/data/valid-service-files/org.freedesktop.DBus.TestSuiteShellEchoServiceSuccess.service
test/data/valid-service-files/org.freedesktop.DBus.TestSuiteShellEchoServiceFail.service
test/data/valid-service-files-system/org.freedesktop.DBus.TestSuiteEchoService.service
test/data/valid-service-files-system/org.freedesktop.DBus.TestSuiteSegfaultService.service
test/data/valid-service-files-system/org.freedesktop.DBus.TestSuiteShellEchoServiceSuccess.service
test/data/valid-service-files-system/org.freedesktop.DBus.TestSuiteShellEchoServiceFail.service
test/data/invalid-service-files-system/org.freedesktop.DBus.TestSuiteNoExec.service
test/data/invalid-service-files-system/org.freedesktop.DBus.TestSuiteNoUser.service
test/data/invalid-service-files-system/org.freedesktop.DBus.TestSuiteNoService.service
])

dnl ==========================================================================
echo "
                    D-Bus $VERSION
                  ==============

	prefix:                   ${prefix}
	exec_prefix:              ${exec_prefix}
        libdir:                   ${EXPANDED_LIBDIR}
        libexecdir:               ${EXPANDED_LIBEXECDIR}
        bindir:                   ${EXPANDED_BINDIR}
        sysconfdir:               ${EXPANDED_SYSCONFDIR}
        localstatedir:            ${EXPANDED_LOCALSTATEDIR}
	datadir:                  ${EXPANDED_DATADIR}
	source code location:	  ${srcdir}
	compiler:		  ${CC}
	cflags:		          ${CFLAGS}
	cppflags:		  ${CPPFLAGS}
	cxxflags:		  ${CXXFLAGS}
	64-bit int:		  ${DBUS_INT64_TYPE}
	32-bit int:		  ${DBUS_INT32_TYPE}
	16-bit int:		  ${DBUS_INT16_TYPE}
        Doxygen:                  ${DOXYGEN}
        xmlto:                    ${XMLTO}"

echo "
        Maintainer mode:          ${USE_MAINTAINER_MODE}
        gcc coverage profiling:   ${enable_gcov}
        Building unit tests:      ${enable_tests}
        Building verbose mode:    ${enable_verbose_mode}
        Building assertions:      ${enable_asserts}
        Building checks:          ${enable_checks}
        Building SELinux support: ${have_selinux}
        Building inotify support: ${have_inotify}
        Building dnotify support: ${have_dnotify}
        Building kqueue support:  ${have_kqueue}
        Building X11 code:        ${enable_x11}
        Building Doxygen docs:    ${enable_doxygen_docs}
        Building XML docs:        ${enable_xml_docs}
        Building cache support:   ${enable_userdb_cache}
        Gettext libs (empty OK):  ${INTLLIBS}
        Using XML parser:         ${with_xml}
        Init scripts style:       ${with_init_scripts}
        Abstract socket names:    ${ac_cv_have_abstract_sockets}
        System bus socket:        ${DBUS_SYSTEM_SOCKET}
        System bus address:       ${DBUS_SYSTEM_BUS_DEFAULT_ADDRESS}
        System bus PID file:      ${DBUS_SYSTEM_PID_FILE}
        Session bus socket dir:   ${DBUS_SESSION_SOCKET_DIR}
        Console auth dir:         ${DBUS_CONSOLE_AUTH_DIR}
        Console owner file:       ${have_console_owner_file}
        Console owner file path:  ${DBUS_CONSOLE_OWNER_FILE}
	System bus user:          ${DBUS_USER}
	Session bus services dir: ${EXPANDED_DATADIR}/dbus-1/services
        'make check' socket dir:  ${TEST_SOCKET_DIR}
"

if test x$enable_tests = xyes; then
        echo "NOTE: building with unit tests increases the size of the installed library and renders it insecure."
fi
if test x$enable_tests = xyes -a x$enable_asserts = xno; then
        echo "NOTE: building with unit tests but without assertions means tests may not properly report failures (this configuration is only useful when doing something like profiling the tests)"
fi
if test x$enable_gcov = xyes; then
        echo "NOTE: building with coverage profiling is definitely for developers only."
fi
if test x$enable_verbose_mode = xyes; then
        echo "NOTE: building with verbose mode increases library size, may slightly increase security risk, and decreases performance."
fi
if test x$enable_asserts = xyes; then
        echo "NOTE: building with assertions increases library size and decreases performance."
fi
if test x$enable_checks = xno; then
        echo "NOTE: building without checks for arguments passed to public API makes it harder to debug apps using D-Bus, but will slightly decrease D-Bus library size and _very_ slightly improve performance."
fi
if test x$dbus_use_libxml = xtrue; then
        echo
	echo "WARNING: You have chosen to use libxml as your xml parser however this code path is not maintained by the D-Bus developers and if it breaks you get to keep the pieces.  If you have selected this option in err please reconfigure with expat (e.g. --with-xml=expat)."
fi