aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/tools/m4/lib/platform/win64/unistd.h
blob: 3980820c14402521b4b840b5fd954d2f4a8dec33 (plain) (blame)
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
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
/* Substitute for and wrapper around <unistd.h>.
   Copyright (C) 2003-2013 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3, or (at your option)
   any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, see <http://www.gnu.org/licenses/>.  */

#ifndef _GL_M4_UNISTD_H

#if __GNUC__ >= 3

#endif


/* The include_next requires a split double-inclusion guard.  */
#if 0
# include <unistd.h>
#endif

/* Get all possible declarations of gethostname().  */
#if 0 && 0 \
  && !defined _GL_INCLUDING_WINSOCK2_H
# define _GL_INCLUDING_WINSOCK2_H
# include <winsock2.h>
# undef _GL_INCLUDING_WINSOCK2_H
#endif

#if !defined _GL_M4_UNISTD_H && !defined _GL_INCLUDING_WINSOCK2_H
#define _GL_M4_UNISTD_H

/* NetBSD 5.0 mis-defines NULL.  Also get size_t.  */
#include <stddef.h>

/* mingw doesn't define the SEEK_* or *_FILENO macros in <unistd.h>.  */
/* Cygwin 1.7.1 declares symlinkat in <stdio.h>, not in <unistd.h>.  */
/* But avoid namespace pollution on glibc systems.  */
#if (!(defined SEEK_CUR && defined SEEK_END && defined SEEK_SET) \
     || ((0 || defined GNULIB_POSIXCHECK) \
         && defined __CYGWIN__)) \
    && ! defined __GLIBC__
# include <stdio.h>
#endif

/* Cygwin 1.7.1 declares unlinkat in <fcntl.h>, not in <unistd.h>.  */
/* But avoid namespace pollution on glibc systems.  */
#if (0 || defined GNULIB_POSIXCHECK) && defined __CYGWIN__ \
    && ! defined __GLIBC__
# include <fcntl.h>
#endif

/* mingw fails to declare _exit in <unistd.h>.  */
/* mingw, MSVC, BeOS, Haiku declare environ in <stdlib.h>, not in
   <unistd.h>.  */
/* Solaris declares getcwd not only in <unistd.h> but also in <stdlib.h>.  */
/* OSF Tru64 Unix cannot see gnulib rpl_strtod when system <stdlib.h> is
   included here.  */
/* But avoid namespace pollution on glibc systems.  */
#if !defined __GLIBC__ && !defined __osf__
# define __need_system_stdlib_h
# include <stdlib.h>
# undef __need_system_stdlib_h
#endif

/* Native Windows platforms declare chdir, getcwd, rmdir in
   <io.h> and/or <direct.h>, not in <unistd.h>.
   They also declare access(), chmod(), close(), dup(), dup2(), isatty(),
   lseek(), read(), unlink(), write() in <io.h>.  */
#if ((1 || IN_M4_GNULIB_TESTS || 1 \
      || defined GNULIB_POSIXCHECK) \
     && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__))
# include <io.h>     /* mingw32, mingw64 */
# include <direct.h> /* mingw64, MSVC 9 */
#elif (1 || IN_M4_GNULIB_TESTS || 1 || 0 \
       || 1 || 0 || 0 || IN_M4_GNULIB_TESTS \
       || defined GNULIB_POSIXCHECK) \
      && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
# include <io.h>
#endif

/* AIX and OSF/1 5.1 declare getdomainname in <netdb.h>, not in <unistd.h>.
   NonStop Kernel declares gethostname in <netdb.h>, not in <unistd.h>.  */
/* But avoid namespace pollution on glibc systems.  */
#if ((0 && (defined _AIX || defined __osf__)) \
     || (0 && defined __TANDEM)) \
    && !defined __GLIBC__
# include <netdb.h>
#endif

/* MSVC defines off_t in <sys/types.h>.
   May also define off_t to a 64-bit type on native Windows.  */
#if !0 || 1
/* Get off_t.  */
# include <sys/types.h>
#endif

#if (0 || IN_M4_GNULIB_TESTS \
     || 1 || 0 \
     || 0 || 0 || defined GNULIB_POSIXCHECK)
/* Get ssize_t.  */
# include <sys/types.h>
#endif

/* Get getopt(), optarg, optind, opterr, optopt.
   But avoid namespace pollution on glibc systems.  */
#if 01 && !defined __GLIBC__ && !defined _GL_SYSTEM_GETOPT
# define __need_getopt
# include <getopt.h>
#endif

#ifndef _GL_INLINE_HEADER_BEGIN
# error "Please include config.h first."
#endif
_GL_INLINE_HEADER_BEGIN
#ifndef _GL_UNISTD_INLINE
# define _GL_UNISTD_INLINE _GL_INLINE
#endif

/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
#ifndef _GL_CXXDEFS_H
#define _GL_CXXDEFS_H


/* _GL_EXTERN_C declaration;
   performs the declaration with C linkage.  */
#if defined __cplusplus
# define _GL_EXTERN_C extern "C"
#else
# define _GL_EXTERN_C extern
#endif

/* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes);
   declares a replacement function, named rpl_func, with the given prototype,
   consisting of return type, parameters, and attributes.
   Example:
     _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
                                  _GL_ARG_NONNULL ((1)));
 */
#define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \
  _GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes)
#define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \
  _GL_EXTERN_C rettype rpl_func parameters_and_attributes

/* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes);
   declares the system function, named func, with the given prototype,
   consisting of return type, parameters, and attributes.
   Example:
     _GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...)
                                  _GL_ARG_NONNULL ((1)));
 */
#define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \
  _GL_EXTERN_C rettype func parameters_and_attributes

/* _GL_CXXALIAS_RPL (func, rettype, parameters);
   declares a C++ alias called GNULIB_NAMESPACE::func
   that redirects to rpl_func, if GNULIB_NAMESPACE is defined.
   Example:
     _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
 */
#define _GL_CXXALIAS_RPL(func,rettype,parameters) \
  _GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters)
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
    namespace GNULIB_NAMESPACE                                \
    {                                                         \
      rettype (*const func) parameters = ::rpl_func;          \
    }                                                         \
    _GL_EXTERN_C int _gl_cxxalias_dummy
#else
# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
    _GL_EXTERN_C int _gl_cxxalias_dummy
#endif

/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters);
   is like  _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters);
   except that the C function rpl_func may have a slightly different
   declaration.  A cast is used to silence the "invalid conversion" error
   that would otherwise occur.  */
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
    namespace GNULIB_NAMESPACE                                     \
    {                                                              \
      rettype (*const func) parameters =                           \
        reinterpret_cast<rettype(*)parameters>(::rpl_func);        \
    }                                                              \
    _GL_EXTERN_C int _gl_cxxalias_dummy
#else
# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
    _GL_EXTERN_C int _gl_cxxalias_dummy
#endif

/* _GL_CXXALIAS_SYS (func, rettype, parameters);
   declares a C++ alias called GNULIB_NAMESPACE::func
   that redirects to the system provided function func, if GNULIB_NAMESPACE
   is defined.
   Example:
     _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
 */
#if defined __cplusplus && defined GNULIB_NAMESPACE
  /* If we were to write
       rettype (*const func) parameters = ::func;
     like above in _GL_CXXALIAS_RPL_1, the compiler could optimize calls
     better (remove an indirection through a 'static' pointer variable),
     but then the _GL_CXXALIASWARN macro below would cause a warning not only
     for uses of ::func but also for uses of GNULIB_NAMESPACE::func.  */
# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
    namespace GNULIB_NAMESPACE                     \
    {                                              \
      static rettype (*func) parameters = ::func;  \
    }                                              \
    _GL_EXTERN_C int _gl_cxxalias_dummy
#else
# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
    _GL_EXTERN_C int _gl_cxxalias_dummy
#endif

/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters);
   is like  _GL_CXXALIAS_SYS (func, rettype, parameters);
   except that the C function func may have a slightly different declaration.
   A cast is used to silence the "invalid conversion" error that would
   otherwise occur.  */
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
    namespace GNULIB_NAMESPACE                          \
    {                                                   \
      static rettype (*func) parameters =               \
        reinterpret_cast<rettype(*)parameters>(::func); \
    }                                                   \
    _GL_EXTERN_C int _gl_cxxalias_dummy
#else
# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
    _GL_EXTERN_C int _gl_cxxalias_dummy
#endif

/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2);
   is like  _GL_CXXALIAS_SYS (func, rettype, parameters);
   except that the C function is picked among a set of overloaded functions,
   namely the one with rettype2 and parameters2.  Two consecutive casts
   are used to silence the "cannot find a match" and "invalid conversion"
   errors that would otherwise occur.  */
#if defined __cplusplus && defined GNULIB_NAMESPACE
  /* The outer cast must be a reinterpret_cast.
     The inner cast: When the function is defined as a set of overloaded
     functions, it works as a static_cast<>, choosing the designated variant.
     When the function is defined as a single variant, it works as a
     reinterpret_cast<>. The parenthesized cast syntax works both ways.  */
# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
    namespace GNULIB_NAMESPACE                                                \
    {                                                                         \
      static rettype (*func) parameters =                                     \
        reinterpret_cast<rettype(*)parameters>(                               \
          (rettype2(*)parameters2)(::func));                                  \
    }                                                                         \
    _GL_EXTERN_C int _gl_cxxalias_dummy
#else
# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
    _GL_EXTERN_C int _gl_cxxalias_dummy
#endif

/* _GL_CXXALIASWARN (func);
   causes a warning to be emitted when ::func is used but not when
   GNULIB_NAMESPACE::func is used.  func must be defined without overloaded
   variants.  */
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIASWARN(func) \
   _GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE)
# define _GL_CXXALIASWARN_1(func,namespace) \
   _GL_CXXALIASWARN_2 (func, namespace)
/* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
   we enable the warning only when not optimizing.  */
# if !__OPTIMIZE__
#  define _GL_CXXALIASWARN_2(func,namespace) \
    _GL_WARN_ON_USE (func, \
                     "The symbol ::" #func " refers to the system function. " \
                     "Use " #namespace "::" #func " instead.")
# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
#  define _GL_CXXALIASWARN_2(func,namespace) \
     extern __typeof__ (func) func
# else
#  define _GL_CXXALIASWARN_2(func,namespace) \
     _GL_EXTERN_C int _gl_cxxalias_dummy
# endif
#else
# define _GL_CXXALIASWARN(func) \
    _GL_EXTERN_C int _gl_cxxalias_dummy
#endif

/* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes);
   causes a warning to be emitted when the given overloaded variant of ::func
   is used but not when GNULIB_NAMESPACE::func is used.  */
#if defined __cplusplus && defined GNULIB_NAMESPACE
# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
   _GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \
                        GNULIB_NAMESPACE)
# define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \
   _GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace)
/* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
   we enable the warning only when not optimizing.  */
# if !__OPTIMIZE__
#  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
    _GL_WARN_ON_USE_CXX (func, rettype, parameters_and_attributes, \
                         "The symbol ::" #func " refers to the system function. " \
                         "Use " #namespace "::" #func " instead.")
# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
#  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
     extern __typeof__ (func) func
# else
#  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
     _GL_EXTERN_C int _gl_cxxalias_dummy
# endif
#else
# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
    _GL_EXTERN_C int _gl_cxxalias_dummy
#endif

#endif /* _GL_CXXDEFS_H */

/* The definition of _GL_ARG_NONNULL is copied here.  */
/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
   that the values passed as arguments n, ..., m must be non-NULL pointers.
   n = 1 stands for the first argument, n = 2 for the second argument etc.  */
#ifndef _GL_ARG_NONNULL
# if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3
#  define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
# else
#  define _GL_ARG_NONNULL(params)
# endif
#endif

/* The definition of _GL_WARN_ON_USE is copied here.  */
#ifndef _GL_WARN_ON_USE

# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
/* A compiler attribute is available in gcc versions 4.3.0 and later.  */
#  define _GL_WARN_ON_USE(function, message) \
extern __typeof__ (function) function __attribute__ ((__warning__ (message)))
# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
/* Verify the existence of the function.  */
#  define _GL_WARN_ON_USE(function, message) \
extern __typeof__ (function) function
# else /* Unsupported.  */
#  define _GL_WARN_ON_USE(function, message) \
_GL_WARN_EXTERN_C int _gl_warn_on_use
# endif
#endif

/* _GL_WARN_ON_USE_CXX (function, rettype, parameters_and_attributes, "string")
   is like _GL_WARN_ON_USE (function, "string"), except that the function is
   declared with the given prototype, consisting of return type, parameters,
   and attributes.
   This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does
   not work in this case.  */
#ifndef _GL_WARN_ON_USE_CXX
# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
#  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
extern rettype function parameters_and_attributes \
     __attribute__ ((__warning__ (msg)))
# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
/* Verify the existence of the function.  */
#  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
extern rettype function parameters_and_attributes
# else /* Unsupported.  */
#  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
_GL_WARN_EXTERN_C int _gl_warn_on_use
# endif
#endif

/* _GL_WARN_EXTERN_C declaration;
   performs the declaration with C linkage.  */
#ifndef _GL_WARN_EXTERN_C
# if defined __cplusplus
#  define _GL_WARN_EXTERN_C extern "C"
# else
#  define _GL_WARN_EXTERN_C extern
# endif
#endif


/* Hide some function declarations from <winsock2.h>.  */

#if 0 && 0
# if !defined _GL_M4_SYS_SOCKET_H
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef socket
#   define socket              socket_used_without_including_sys_socket_h
#   undef connect
#   define connect             connect_used_without_including_sys_socket_h
#   undef accept
#   define accept              accept_used_without_including_sys_socket_h
#   undef bind
#   define bind                bind_used_without_including_sys_socket_h
#   undef getpeername
#   define getpeername         getpeername_used_without_including_sys_socket_h
#   undef getsockname
#   define getsockname         getsockname_used_without_including_sys_socket_h
#   undef getsockopt
#   define getsockopt          getsockopt_used_without_including_sys_socket_h
#   undef listen
#   define listen              listen_used_without_including_sys_socket_h
#   undef recv
#   define recv                recv_used_without_including_sys_socket_h
#   undef send
#   define send                send_used_without_including_sys_socket_h
#   undef recvfrom
#   define recvfrom            recvfrom_used_without_including_sys_socket_h
#   undef sendto
#   define sendto              sendto_used_without_including_sys_socket_h
#   undef setsockopt
#   define setsockopt          setsockopt_used_without_including_sys_socket_h
#   undef shutdown
#   define shutdown            shutdown_used_without_including_sys_socket_h
#  else
    _GL_WARN_ON_USE (socket,
                     "socket() used without including <sys/socket.h>");
    _GL_WARN_ON_USE (connect,
                     "connect() used without including <sys/socket.h>");
    _GL_WARN_ON_USE (accept,
                     "accept() used without including <sys/socket.h>");
    _GL_WARN_ON_USE (bind,
                     "bind() used without including <sys/socket.h>");
    _GL_WARN_ON_USE (getpeername,
                     "getpeername() used without including <sys/socket.h>");
    _GL_WARN_ON_USE (getsockname,
                     "getsockname() used without including <sys/socket.h>");
    _GL_WARN_ON_USE (getsockopt,
                     "getsockopt() used without including <sys/socket.h>");
    _GL_WARN_ON_USE (listen,
                     "listen() used without including <sys/socket.h>");
    _GL_WARN_ON_USE (recv,
                     "recv() used without including <sys/socket.h>");
    _GL_WARN_ON_USE (send,
                     "send() used without including <sys/socket.h>");
    _GL_WARN_ON_USE (recvfrom,
                     "recvfrom() used without including <sys/socket.h>");
    _GL_WARN_ON_USE (sendto,
                     "sendto() used without including <sys/socket.h>");
    _GL_WARN_ON_USE (setsockopt,
                     "setsockopt() used without including <sys/socket.h>");
    _GL_WARN_ON_USE (shutdown,
                     "shutdown() used without including <sys/socket.h>");
#  endif
# endif
# if !defined _GL_M4_SYS_SELECT_H
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef select
#   define select              select_used_without_including_sys_select_h
#  else
    _GL_WARN_ON_USE (select,
                     "select() used without including <sys/select.h>");
#  endif
# endif
#endif


/* OS/2 EMX lacks these macros.  */
#ifndef STDIN_FILENO
# define STDIN_FILENO 0
#endif
#ifndef STDOUT_FILENO
# define STDOUT_FILENO 1
#endif
#ifndef STDERR_FILENO
# define STDERR_FILENO 2
#endif

/* Ensure *_OK macros exist.  */
#ifndef F_OK
# define F_OK 0
# define X_OK 1
# define W_OK 2
# define R_OK 4
#endif


/* Declare overridden functions.  */


#if defined GNULIB_POSIXCHECK
/* The access() function is a security risk.  */
_GL_WARN_ON_USE (access, "the access function is a security risk - "
                 "use the gnulib module faccessat instead");
#endif


#if 1
_GL_CXXALIAS_SYS (chdir, int, (const char *file) _GL_ARG_NONNULL ((1)));
_GL_CXXALIASWARN (chdir);
#elif defined GNULIB_POSIXCHECK
# undef chdir
# if HAVE_RAW_DECL_CHDIR
_GL_WARN_ON_USE (chown, "chdir is not always in <unistd.h> - "
                 "use gnulib module chdir for portability");
# endif
#endif


#if 0
/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
   to GID (if GID is not -1).  Follow symbolic links.
   Return 0 if successful, otherwise -1 and errno set.
   See the POSIX:2008 specification
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/chown.html.  */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef chown
#   define chown rpl_chown
#  endif
_GL_FUNCDECL_RPL (chown, int, (const char *file, uid_t uid, gid_t gid)
                              _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (chown, int, (const char *file, uid_t uid, gid_t gid));
# else
#  if !1
_GL_FUNCDECL_SYS (chown, int, (const char *file, uid_t uid, gid_t gid)
                              _GL_ARG_NONNULL ((1)));
#  endif
_GL_CXXALIAS_SYS (chown, int, (const char *file, uid_t uid, gid_t gid));
# endif
_GL_CXXALIASWARN (chown);
#elif defined GNULIB_POSIXCHECK
# undef chown
# if HAVE_RAW_DECL_CHOWN
_GL_WARN_ON_USE (chown, "chown fails to follow symlinks on some systems and "
                 "doesn't treat a uid or gid of -1 on some systems - "
                 "use gnulib module chown for portability");
# endif
#endif


#if 1
# if 1
/* Automatically included by modules that need a replacement for close.  */
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef close
#   define close rpl_close
#  endif
_GL_FUNCDECL_RPL (close, int, (int fd));
_GL_CXXALIAS_RPL (close, int, (int fd));
# else
_GL_CXXALIAS_SYS (close, int, (int fd));
# endif
_GL_CXXALIASWARN (close);
#elif 0
# undef close
# define close close_used_without_requesting_gnulib_module_close
#elif defined GNULIB_POSIXCHECK
# undef close
/* Assume close is always declared.  */
_GL_WARN_ON_USE (close, "close does not portably work on sockets - "
                 "use gnulib module close for portability");
#endif


#if IN_M4_GNULIB_TESTS
# if 1
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   define dup rpl_dup
#  endif
_GL_FUNCDECL_RPL (dup, int, (int oldfd));
_GL_CXXALIAS_RPL (dup, int, (int oldfd));
# else
_GL_CXXALIAS_SYS (dup, int, (int oldfd));
# endif
_GL_CXXALIASWARN (dup);
#elif defined GNULIB_POSIXCHECK
# undef dup
# if HAVE_RAW_DECL_DUP
_GL_WARN_ON_USE (dup, "dup is unportable - "
                 "use gnulib module dup for portability");
# endif
#endif


#if 1
/* Copy the file descriptor OLDFD into file descriptor NEWFD.  Do nothing if
   NEWFD = OLDFD, otherwise close NEWFD first if it is open.
   Return newfd if successful, otherwise -1 and errno set.
   See the POSIX:2008 specification
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/dup2.html>.  */
# if 1
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   define dup2 rpl_dup2
#  endif
_GL_FUNCDECL_RPL (dup2, int, (int oldfd, int newfd));
_GL_CXXALIAS_RPL (dup2, int, (int oldfd, int newfd));
# else
#  if !1
_GL_FUNCDECL_SYS (dup2, int, (int oldfd, int newfd));
#  endif
_GL_CXXALIAS_SYS (dup2, int, (int oldfd, int newfd));
# endif
_GL_CXXALIASWARN (dup2);
#elif defined GNULIB_POSIXCHECK
# undef dup2
# if HAVE_RAW_DECL_DUP2
_GL_WARN_ON_USE (dup2, "dup2 is unportable - "
                 "use gnulib module dup2 for portability");
# endif
#endif


#if 0
/* Copy the file descriptor OLDFD into file descriptor NEWFD, with the
   specified flags.
   The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
   and O_TEXT, O_BINARY (defined in "binary-io.h").
   Close NEWFD first if it is open.
   Return newfd if successful, otherwise -1 and errno set.
   See the Linux man page at
   <http://www.kernel.org/doc/man-pages/online/pages/man2/dup3.2.html>.  */
# if 1
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   define dup3 rpl_dup3
#  endif
_GL_FUNCDECL_RPL (dup3, int, (int oldfd, int newfd, int flags));
_GL_CXXALIAS_RPL (dup3, int, (int oldfd, int newfd, int flags));
# else
_GL_FUNCDECL_SYS (dup3, int, (int oldfd, int newfd, int flags));
_GL_CXXALIAS_SYS (dup3, int, (int oldfd, int newfd, int flags));
# endif
_GL_CXXALIASWARN (dup3);
#elif defined GNULIB_POSIXCHECK
# undef dup3
# if HAVE_RAW_DECL_DUP3
_GL_WARN_ON_USE (dup3, "dup3 is unportable - "
                 "use gnulib module dup3 for portability");
# endif
#endif


#if 1
# if !1
/* Set of environment variables and values.  An array of strings of the form
   "VARIABLE=VALUE", terminated with a NULL.  */
#  if defined __APPLE__ && defined __MACH__
#   include <crt_externs.h>
#   define environ (*_NSGetEnviron ())
#  else
#   ifdef __cplusplus
extern "C" {
#   endif
extern char **environ;
#   ifdef __cplusplus
}
#   endif
#  endif
# endif
#elif defined GNULIB_POSIXCHECK
# if HAVE_RAW_DECL_ENVIRON
_GL_UNISTD_INLINE char ***
rpl_environ (void)
{
  return &environ;
}
_GL_WARN_ON_USE (rpl_environ, "environ is unportable - "
                 "use gnulib module environ for portability");
#  undef environ
#  define environ (*rpl_environ ())
# endif
#endif


#if 0
/* Like access(), except that it uses the effective user id and group id of
   the current process.  */
# if !1
_GL_FUNCDECL_SYS (euidaccess, int, (const char *filename, int mode)
                                   _GL_ARG_NONNULL ((1)));
# endif
_GL_CXXALIAS_SYS (euidaccess, int, (const char *filename, int mode));
_GL_CXXALIASWARN (euidaccess);
# if defined GNULIB_POSIXCHECK
/* Like access(), this function is a security risk.  */
_GL_WARN_ON_USE (euidaccess, "the euidaccess function is a security risk - "
                 "use the gnulib module faccessat instead");
# endif
#elif defined GNULIB_POSIXCHECK
# undef euidaccess
# if HAVE_RAW_DECL_EUIDACCESS
_GL_WARN_ON_USE (euidaccess, "euidaccess is unportable - "
                 "use gnulib module euidaccess for portability");
# endif
#endif


#if 0
# if !1
_GL_FUNCDECL_SYS (faccessat, int,
                  (int fd, char const *file, int mode, int flag)
                  _GL_ARG_NONNULL ((2)));
# endif
_GL_CXXALIAS_SYS (faccessat, int,
                  (int fd, char const *file, int mode, int flag));
_GL_CXXALIASWARN (faccessat);
#elif defined GNULIB_POSIXCHECK
# undef faccessat
# if HAVE_RAW_DECL_FACCESSAT
_GL_WARN_ON_USE (faccessat, "faccessat is not portable - "
                 "use gnulib module faccessat for portability");
# endif
#endif


#if 0
/* Change the process' current working directory to the directory on which
   the given file descriptor is open.
   Return 0 if successful, otherwise -1 and errno set.
   See the POSIX:2008 specification
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fchdir.html>.  */
# if ! 1
_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));

/* Gnulib internal hooks needed to maintain the fchdir metadata.  */
_GL_EXTERN_C int _gl_register_fd (int fd, const char *filename)
     _GL_ARG_NONNULL ((2));
_GL_EXTERN_C void _gl_unregister_fd (int fd);
_GL_EXTERN_C int _gl_register_dup (int oldfd, int newfd);
_GL_EXTERN_C const char *_gl_directory_name (int fd);

# else
#  if !1
_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));
#  endif
# endif
_GL_CXXALIAS_SYS (fchdir, int, (int /*fd*/));
_GL_CXXALIASWARN (fchdir);
#elif defined GNULIB_POSIXCHECK
# undef fchdir
# if HAVE_RAW_DECL_FCHDIR
_GL_WARN_ON_USE (fchdir, "fchdir is unportable - "
                 "use gnulib module fchdir for portability");
# endif
#endif


#if 0
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef fchownat
#   define fchownat rpl_fchownat
#  endif
_GL_FUNCDECL_RPL (fchownat, int, (int fd, char const *file,
                                  uid_t owner, gid_t group, int flag)
                                 _GL_ARG_NONNULL ((2)));
_GL_CXXALIAS_RPL (fchownat, int, (int fd, char const *file,
                                  uid_t owner, gid_t group, int flag));
# else
#  if !1
_GL_FUNCDECL_SYS (fchownat, int, (int fd, char const *file,
                                  uid_t owner, gid_t group, int flag)
                                 _GL_ARG_NONNULL ((2)));
#  endif
_GL_CXXALIAS_SYS (fchownat, int, (int fd, char const *file,
                                  uid_t owner, gid_t group, int flag));
# endif
_GL_CXXALIASWARN (fchownat);
#elif defined GNULIB_POSIXCHECK
# undef fchownat
# if HAVE_RAW_DECL_FCHOWNAT
_GL_WARN_ON_USE (fchownat, "fchownat is not portable - "
                 "use gnulib module openat for portability");
# endif
#endif


#if 0
/* Synchronize changes to a file.
   Return 0 if successful, otherwise -1 and errno set.
   See POSIX:2008 specification
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fdatasync.html>.  */
# if !1 || !1
_GL_FUNCDECL_SYS (fdatasync, int, (int fd));
# endif
_GL_CXXALIAS_SYS (fdatasync, int, (int fd));
_GL_CXXALIASWARN (fdatasync);
#elif defined GNULIB_POSIXCHECK
# undef fdatasync
# if HAVE_RAW_DECL_FDATASYNC
_GL_WARN_ON_USE (fdatasync, "fdatasync is unportable - "
                 "use gnulib module fdatasync for portability");
# endif
#endif


#if 0
/* Synchronize changes, including metadata, to a file.
   Return 0 if successful, otherwise -1 and errno set.
   See POSIX:2008 specification
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fsync.html>.  */
# if !1
_GL_FUNCDECL_SYS (fsync, int, (int fd));
# endif
_GL_CXXALIAS_SYS (fsync, int, (int fd));
_GL_CXXALIASWARN (fsync);
#elif defined GNULIB_POSIXCHECK
# undef fsync
# if HAVE_RAW_DECL_FSYNC
_GL_WARN_ON_USE (fsync, "fsync is unportable - "
                 "use gnulib module fsync for portability");
# endif
#endif


#if 0
/* Change the size of the file to which FD is opened to become equal to LENGTH.
   Return 0 if successful, otherwise -1 and errno set.
   See the POSIX:2008 specification
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html>.  */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef ftruncate
#   define ftruncate rpl_ftruncate
#  endif
_GL_FUNCDECL_RPL (ftruncate, int, (int fd, off_t length));
_GL_CXXALIAS_RPL (ftruncate, int, (int fd, off_t length));
# else
#  if !1
_GL_FUNCDECL_SYS (ftruncate, int, (int fd, off_t length));
#  endif
_GL_CXXALIAS_SYS (ftruncate, int, (int fd, off_t length));
# endif
_GL_CXXALIASWARN (ftruncate);
#elif defined GNULIB_POSIXCHECK
# undef ftruncate
# if HAVE_RAW_DECL_FTRUNCATE
_GL_WARN_ON_USE (ftruncate, "ftruncate is unportable - "
                 "use gnulib module ftruncate for portability");
# endif
#endif


#if IN_M4_GNULIB_TESTS
/* Get the name of the current working directory, and put it in SIZE bytes
   of BUF.
   Return BUF if successful, or NULL if the directory couldn't be determined
   or SIZE was too small.
   See the POSIX:2008 specification
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/getcwd.html>.
   Additionally, the gnulib module 'getcwd' guarantees the following GNU
   extension: If BUF is NULL, an array is allocated with 'malloc'; the array
   is SIZE bytes long, unless SIZE == 0, in which case it is as big as
   necessary.  */
# if 1
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   define getcwd rpl_getcwd
#  endif
_GL_FUNCDECL_RPL (getcwd, char *, (char *buf, size_t size));
_GL_CXXALIAS_RPL (getcwd, char *, (char *buf, size_t size));
# else
/* Need to cast, because on mingw, the second parameter is
                                                   int size.  */
_GL_CXXALIAS_SYS_CAST (getcwd, char *, (char *buf, size_t size));
# endif
_GL_CXXALIASWARN (getcwd);
#elif defined GNULIB_POSIXCHECK
# undef getcwd
# if HAVE_RAW_DECL_GETCWD
_GL_WARN_ON_USE (getcwd, "getcwd is unportable - "
                 "use gnulib module getcwd for portability");
# endif
#endif


#if 0
/* Return the NIS domain name of the machine.
   WARNING! The NIS domain name is unrelated to the fully qualified host name
            of the machine.  It is also unrelated to email addresses.
   WARNING! The NIS domain name is usually the empty string or "(none)" when
            not using NIS.

   Put up to LEN bytes of the NIS domain name into NAME.
   Null terminate it if the name is shorter than LEN.
   If the NIS domain name is longer than LEN, set errno = EINVAL and return -1.
   Return 0 if successful, otherwise set errno and return -1.  */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef getdomainname
#   define getdomainname rpl_getdomainname
#  endif
_GL_FUNCDECL_RPL (getdomainname, int, (char *name, size_t len)
                                      _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (getdomainname, int, (char *name, size_t len));
# else
#  if !1
_GL_FUNCDECL_SYS (getdomainname, int, (char *name, size_t len)
                                      _GL_ARG_NONNULL ((1)));
#  endif
_GL_CXXALIAS_SYS (getdomainname, int, (char *name, size_t len));
# endif
_GL_CXXALIASWARN (getdomainname);
#elif defined GNULIB_POSIXCHECK
# undef getdomainname
# if HAVE_RAW_DECL_GETDOMAINNAME
_GL_WARN_ON_USE (getdomainname, "getdomainname is unportable - "
                 "use gnulib module getdomainname for portability");
# endif
#endif


#if 1
/* Return the maximum number of file descriptors in the current process.
   In POSIX, this is same as sysconf (_SC_OPEN_MAX).  */
# if !0
_GL_FUNCDECL_SYS (getdtablesize, int, (void));
# endif
_GL_CXXALIAS_SYS (getdtablesize, int, (void));
_GL_CXXALIASWARN (getdtablesize);
#elif defined GNULIB_POSIXCHECK
# undef getdtablesize
# if HAVE_RAW_DECL_GETDTABLESIZE
_GL_WARN_ON_USE (getdtablesize, "getdtablesize is unportable - "
                 "use gnulib module getdtablesize for portability");
# endif
#endif


#if 0
/* Return the supplemental groups that the current process belongs to.
   It is unspecified whether the effective group id is in the list.
   If N is 0, return the group count; otherwise, N describes how many
   entries are available in GROUPS.  Return -1 and set errno if N is
   not 0 and not large enough.  Fails with ENOSYS on some systems.  */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef getgroups
#   define getgroups rpl_getgroups
#  endif
_GL_FUNCDECL_RPL (getgroups, int, (int n, gid_t *groups));
_GL_CXXALIAS_RPL (getgroups, int, (int n, gid_t *groups));
# else
#  if !1
_GL_FUNCDECL_SYS (getgroups, int, (int n, gid_t *groups));
#  endif
_GL_CXXALIAS_SYS (getgroups, int, (int n, gid_t *groups));
# endif
_GL_CXXALIASWARN (getgroups);
#elif defined GNULIB_POSIXCHECK
# undef getgroups
# if HAVE_RAW_DECL_GETGROUPS
_GL_WARN_ON_USE (getgroups, "getgroups is unportable - "
                 "use gnulib module getgroups for portability");
# endif
#endif


#if 0
/* Return the standard host name of the machine.
   WARNING! The host name may or may not be fully qualified.

   Put up to LEN bytes of the host name into NAME.
   Null terminate it if the name is shorter than LEN.
   If the host name is longer than LEN, set errno = EINVAL and return -1.
   Return 0 if successful, otherwise set errno and return -1.  */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef gethostname
#   define gethostname rpl_gethostname
#  endif
_GL_FUNCDECL_RPL (gethostname, int, (char *name, size_t len)
                                    _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (gethostname, int, (char *name, size_t len));
# else
#  if !1
_GL_FUNCDECL_SYS (gethostname, int, (char *name, size_t len)
                                    _GL_ARG_NONNULL ((1)));
#  endif
/* Need to cast, because on Solaris 10 and OSF/1 5.1 systems, the second
   parameter is
                                                      int len.  */
_GL_CXXALIAS_SYS_CAST (gethostname, int, (char *name, size_t len));
# endif
_GL_CXXALIASWARN (gethostname);
#elif 0
# undef gethostname
# define gethostname gethostname_used_without_requesting_gnulib_module_gethostname
#elif defined GNULIB_POSIXCHECK
# undef gethostname
# if HAVE_RAW_DECL_GETHOSTNAME
_GL_WARN_ON_USE (gethostname, "gethostname is unportable - "
                 "use gnulib module gethostname for portability");
# endif
#endif


#if 0
/* Returns the user's login name, or NULL if it cannot be found.  Upon error,
   returns NULL with errno set.

   See <http://www.opengroup.org/susv3xsh/getlogin.html>.

   Most programs don't need to use this function, because the information is
   available through environment variables:
     ${LOGNAME-$USER}        on Unix platforms,
     $USERNAME               on native Windows platforms.
 */
# if !1
_GL_FUNCDECL_SYS (getlogin, char *, (void));
# endif
_GL_CXXALIAS_SYS (getlogin, char *, (void));
_GL_CXXALIASWARN (getlogin);
#elif defined GNULIB_POSIXCHECK
# undef getlogin
# if HAVE_RAW_DECL_GETLOGIN
_GL_WARN_ON_USE (getlogin, "getlogin is unportable - "
                 "use gnulib module getlogin for portability");
# endif
#endif


#if 0
/* Copies the user's login name to NAME.
   The array pointed to by NAME has room for SIZE bytes.

   Returns 0 if successful.  Upon error, an error number is returned, or -1 in
   the case that the login name cannot be found but no specific error is
   provided (this case is hopefully rare but is left open by the POSIX spec).

   See <http://www.opengroup.org/susv3xsh/getlogin.html>.

   Most programs don't need to use this function, because the information is
   available through environment variables:
     ${LOGNAME-$USER}        on Unix platforms,
     $USERNAME               on native Windows platforms.
 */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   define getlogin_r rpl_getlogin_r
#  endif
_GL_FUNCDECL_RPL (getlogin_r, int, (char *name, size_t size)
                                   _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (getlogin_r, int, (char *name, size_t size));
# else
#  if !1
_GL_FUNCDECL_SYS (getlogin_r, int, (char *name, size_t size)
                                   _GL_ARG_NONNULL ((1)));
#  endif
/* Need to cast, because on Solaris 10 systems, the second argument is
                                                     int size.  */
_GL_CXXALIAS_SYS_CAST (getlogin_r, int, (char *name, size_t size));
# endif
_GL_CXXALIASWARN (getlogin_r);
#elif defined GNULIB_POSIXCHECK
# undef getlogin_r
# if HAVE_RAW_DECL_GETLOGIN_R
_GL_WARN_ON_USE (getlogin_r, "getlogin_r is unportable - "
                 "use gnulib module getlogin_r for portability");
# endif
#endif


#if IN_M4_GNULIB_TESTS
# if 1
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   define getpagesize rpl_getpagesize
#  endif
_GL_FUNCDECL_RPL (getpagesize, int, (void));
_GL_CXXALIAS_RPL (getpagesize, int, (void));
# else
#  if !0
#   if !defined getpagesize
/* This is for POSIX systems.  */
#    if !defined _gl_getpagesize && defined _SC_PAGESIZE
#     if ! (defined __VMS && __VMS_VER < 70000000)
#      define _gl_getpagesize() sysconf (_SC_PAGESIZE)
#     endif
#    endif
/* This is for older VMS.  */
#    if !defined _gl_getpagesize && defined __VMS
#     ifdef __ALPHA
#      define _gl_getpagesize() 8192
#     else
#      define _gl_getpagesize() 512
#     endif
#    endif
/* This is for BeOS.  */
#    if !defined _gl_getpagesize && 0
#     error #include <OS.h>
#     if defined B_PAGE_SIZE
#      define _gl_getpagesize() B_PAGE_SIZE
#     endif
#    endif
/* This is for AmigaOS4.0.  */
#    if !defined _gl_getpagesize && defined __amigaos4__
#     define _gl_getpagesize() 2048
#    endif
/* This is for older Unix systems.  */
#    if !defined _gl_getpagesize && 0
#     include <sys/param.h>
#     ifdef EXEC_PAGESIZE
#      define _gl_getpagesize() EXEC_PAGESIZE
#     else
#      ifdef NBPG
#       ifndef CLSIZE
#        define CLSIZE 1
#       endif
#       define _gl_getpagesize() (NBPG * CLSIZE)
#      else
#       ifdef NBPC
#        define _gl_getpagesize() NBPC
#       endif
#      endif
#     endif
#    endif
#    if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#     define getpagesize() _gl_getpagesize ()
#    else
#     if !GNULIB_defined_getpagesize_function
_GL_UNISTD_INLINE int
getpagesize ()
{
  return _gl_getpagesize ();
}
#      define GNULIB_defined_getpagesize_function 1
#     endif
#    endif
#   endif
#  endif
/* Need to cast, because on Cygwin 1.5.x systems, the return type is size_t.  */
_GL_CXXALIAS_SYS_CAST (getpagesize, int, (void));
# endif
# if 0
_GL_CXXALIASWARN (getpagesize);
# endif
#elif defined GNULIB_POSIXCHECK
# undef getpagesize
# if HAVE_RAW_DECL_GETPAGESIZE
_GL_WARN_ON_USE (getpagesize, "getpagesize is unportable - "
                 "use gnulib module getpagesize for portability");
# endif
#endif


#if 0
/* Return the next valid login shell on the system, or NULL when the end of
   the list has been reached.  */
# if !1
_GL_FUNCDECL_SYS (getusershell, char *, (void));
# endif
_GL_CXXALIAS_SYS (getusershell, char *, (void));
_GL_CXXALIASWARN (getusershell);
#elif defined GNULIB_POSIXCHECK
# undef getusershell
# if HAVE_RAW_DECL_GETUSERSHELL
_GL_WARN_ON_USE (getusershell, "getusershell is unportable - "
                 "use gnulib module getusershell for portability");
# endif
#endif

#if 0
/* Rewind to pointer that is advanced at each getusershell() call.  */
# if !1
_GL_FUNCDECL_SYS (setusershell, void, (void));
# endif
_GL_CXXALIAS_SYS (setusershell, void, (void));
_GL_CXXALIASWARN (setusershell);
#elif defined GNULIB_POSIXCHECK
# undef setusershell
# if HAVE_RAW_DECL_SETUSERSHELL
_GL_WARN_ON_USE (setusershell, "setusershell is unportable - "
                 "use gnulib module getusershell for portability");
# endif
#endif

#if 0
/* Free the pointer that is advanced at each getusershell() call and
   associated resources.  */
# if !1
_GL_FUNCDECL_SYS (endusershell, void, (void));
# endif
_GL_CXXALIAS_SYS (endusershell, void, (void));
_GL_CXXALIASWARN (endusershell);
#elif defined GNULIB_POSIXCHECK
# undef endusershell
# if HAVE_RAW_DECL_ENDUSERSHELL
_GL_WARN_ON_USE (endusershell, "endusershell is unportable - "
                 "use gnulib module getusershell for portability");
# endif
#endif


#if 0
/* Determine whether group id is in calling user's group list.  */
# if !1
_GL_FUNCDECL_SYS (group_member, int, (gid_t gid));
# endif
_GL_CXXALIAS_SYS (group_member, int, (gid_t gid));
_GL_CXXALIASWARN (group_member);
#elif defined GNULIB_POSIXCHECK
# undef group_member
# if HAVE_RAW_DECL_GROUP_MEMBER
_GL_WARN_ON_USE (group_member, "group_member is unportable - "
                 "use gnulib module group-member for portability");
# endif
#endif


#if 0
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef isatty
#   define isatty rpl_isatty
#  endif
_GL_FUNCDECL_RPL (isatty, int, (int fd));
_GL_CXXALIAS_RPL (isatty, int, (int fd));
# else
_GL_CXXALIAS_SYS (isatty, int, (int fd));
# endif
_GL_CXXALIASWARN (isatty);
#elif defined GNULIB_POSIXCHECK
# undef isatty
# if HAVE_RAW_DECL_ISATTY
_GL_WARN_ON_USE (isatty, "isatty has portability problems on native Windows - "
                 "use gnulib module isatty for portability");
# endif
#endif


#if 0
/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
   to GID (if GID is not -1).  Do not follow symbolic links.
   Return 0 if successful, otherwise -1 and errno set.
   See the POSIX:2008 specification
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lchown.html>.  */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef lchown
#   define lchown rpl_lchown
#  endif
_GL_FUNCDECL_RPL (lchown, int, (char const *file, uid_t owner, gid_t group)
                               _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (lchown, int, (char const *file, uid_t owner, gid_t group));
# else
#  if !1
_GL_FUNCDECL_SYS (lchown, int, (char const *file, uid_t owner, gid_t group)
                               _GL_ARG_NONNULL ((1)));
#  endif
_GL_CXXALIAS_SYS (lchown, int, (char const *file, uid_t owner, gid_t group));
# endif
_GL_CXXALIASWARN (lchown);
#elif defined GNULIB_POSIXCHECK
# undef lchown
# if HAVE_RAW_DECL_LCHOWN
_GL_WARN_ON_USE (lchown, "lchown is unportable to pre-POSIX.1-2001 systems - "
                 "use gnulib module lchown for portability");
# endif
#endif


#if IN_M4_GNULIB_TESTS
/* Create a new hard link for an existing file.
   Return 0 if successful, otherwise -1 and errno set.
   See POSIX:2008 specification
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/link.html>.  */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   define link rpl_link
#  endif
_GL_FUNCDECL_RPL (link, int, (const char *path1, const char *path2)
                             _GL_ARG_NONNULL ((1, 2)));
_GL_CXXALIAS_RPL (link, int, (const char *path1, const char *path2));
# else
#  if !0
_GL_FUNCDECL_SYS (link, int, (const char *path1, const char *path2)
                             _GL_ARG_NONNULL ((1, 2)));
#  endif
_GL_CXXALIAS_SYS (link, int, (const char *path1, const char *path2));
# endif
_GL_CXXALIASWARN (link);
#elif defined GNULIB_POSIXCHECK
# undef link
# if HAVE_RAW_DECL_LINK
_GL_WARN_ON_USE (link, "link is unportable - "
                 "use gnulib module link for portability");
# endif
#endif


#if 0
/* Create a new hard link for an existing file, relative to two
   directories.  FLAG controls whether symlinks are followed.
   Return 0 if successful, otherwise -1 and errno set.  */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef linkat
#   define linkat rpl_linkat
#  endif
_GL_FUNCDECL_RPL (linkat, int,
                  (int fd1, const char *path1, int fd2, const char *path2,
                   int flag)
                  _GL_ARG_NONNULL ((2, 4)));
_GL_CXXALIAS_RPL (linkat, int,
                  (int fd1, const char *path1, int fd2, const char *path2,
                   int flag));
# else
#  if !1
_GL_FUNCDECL_SYS (linkat, int,
                  (int fd1, const char *path1, int fd2, const char *path2,
                   int flag)
                  _GL_ARG_NONNULL ((2, 4)));
#  endif
_GL_CXXALIAS_SYS (linkat, int,
                  (int fd1, const char *path1, int fd2, const char *path2,
                   int flag));
# endif
_GL_CXXALIASWARN (linkat);
#elif defined GNULIB_POSIXCHECK
# undef linkat
# if HAVE_RAW_DECL_LINKAT
_GL_WARN_ON_USE (linkat, "linkat is unportable - "
                 "use gnulib module linkat for portability");
# endif
#endif


#if 1
/* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END.
   Return the new offset if successful, otherwise -1 and errno set.
   See the POSIX:2008 specification
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lseek.html>.  */
# if 1
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   define lseek rpl_lseek
#  endif
_GL_FUNCDECL_RPL (lseek, off_t, (int fd, off_t offset, int whence));
_GL_CXXALIAS_RPL (lseek, off_t, (int fd, off_t offset, int whence));
# else
_GL_CXXALIAS_SYS (lseek, off_t, (int fd, off_t offset, int whence));
# endif
_GL_CXXALIASWARN (lseek);
#elif defined GNULIB_POSIXCHECK
# undef lseek
# if HAVE_RAW_DECL_LSEEK
_GL_WARN_ON_USE (lseek, "lseek does not fail with ESPIPE on pipes on some "
                 "systems - use gnulib module lseek for portability");
# endif
#endif


#if 0
/* Create a pipe, defaulting to O_BINARY mode.
   Store the read-end as fd[0] and the write-end as fd[1].
   Return 0 upon success, or -1 with errno set upon failure.  */
# if !1
_GL_FUNCDECL_SYS (pipe, int, (int fd[2]) _GL_ARG_NONNULL ((1)));
# endif
_GL_CXXALIAS_SYS (pipe, int, (int fd[2]));
_GL_CXXALIASWARN (pipe);
#elif defined GNULIB_POSIXCHECK
# undef pipe
# if HAVE_RAW_DECL_PIPE
_GL_WARN_ON_USE (pipe, "pipe is unportable - "
                 "use gnulib module pipe-posix for portability");
# endif
#endif


#if 1
/* Create a pipe, applying the given flags when opening the read-end of the
   pipe and the write-end of the pipe.
   The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
   and O_TEXT, O_BINARY (defined in "binary-io.h").
   Store the read-end as fd[0] and the write-end as fd[1].
   Return 0 upon success, or -1 with errno set upon failure.
   See also the Linux man page at
   <http://www.kernel.org/doc/man-pages/online/pages/man2/pipe2.2.html>.  */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   define pipe2 rpl_pipe2
#  endif
_GL_FUNCDECL_RPL (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (pipe2, int, (int fd[2], int flags));
# else
_GL_FUNCDECL_SYS (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_SYS (pipe2, int, (int fd[2], int flags));
# endif
_GL_CXXALIASWARN (pipe2);
#elif defined GNULIB_POSIXCHECK
# undef pipe2
# if HAVE_RAW_DECL_PIPE2
_GL_WARN_ON_USE (pipe2, "pipe2 is unportable - "
                 "use gnulib module pipe2 for portability");
# endif
#endif


#if 0
/* Read at most BUFSIZE bytes from FD into BUF, starting at OFFSET.
   Return the number of bytes placed into BUF if successful, otherwise
   set errno and return -1.  0 indicates EOF.
   See the POSIX:2008 specification
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pread.html>.  */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef pread
#   define pread rpl_pread
#  endif
_GL_FUNCDECL_RPL (pread, ssize_t,
                  (int fd, void *buf, size_t bufsize, off_t offset)
                  _GL_ARG_NONNULL ((2)));
_GL_CXXALIAS_RPL (pread, ssize_t,
                  (int fd, void *buf, size_t bufsize, off_t offset));
# else
#  if !1
_GL_FUNCDECL_SYS (pread, ssize_t,
                  (int fd, void *buf, size_t bufsize, off_t offset)
                  _GL_ARG_NONNULL ((2)));
#  endif
_GL_CXXALIAS_SYS (pread, ssize_t,
                  (int fd, void *buf, size_t bufsize, off_t offset));
# endif
_GL_CXXALIASWARN (pread);
#elif defined GNULIB_POSIXCHECK
# undef pread
# if HAVE_RAW_DECL_PREAD
_GL_WARN_ON_USE (pread, "pread is unportable - "
                 "use gnulib module pread for portability");
# endif
#endif


#if 0
/* Write at most BUFSIZE bytes from BUF into FD, starting at OFFSET.
   Return the number of bytes written if successful, otherwise
   set errno and return -1.  0 indicates nothing written.  See the
   POSIX:2008 specification
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html>.  */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef pwrite
#   define pwrite rpl_pwrite
#  endif
_GL_FUNCDECL_RPL (pwrite, ssize_t,
                  (int fd, const void *buf, size_t bufsize, off_t offset)
                  _GL_ARG_NONNULL ((2)));
_GL_CXXALIAS_RPL (pwrite, ssize_t,
                  (int fd, const void *buf, size_t bufsize, off_t offset));
# else
#  if !1
_GL_FUNCDECL_SYS (pwrite, ssize_t,
                  (int fd, const void *buf, size_t bufsize, off_t offset)
                  _GL_ARG_NONNULL ((2)));
#  endif
_GL_CXXALIAS_SYS (pwrite, ssize_t,
                  (int fd, const void *buf, size_t bufsize, off_t offset));
# endif
_GL_CXXALIASWARN (pwrite);
#elif defined GNULIB_POSIXCHECK
# undef pwrite
# if HAVE_RAW_DECL_PWRITE
_GL_WARN_ON_USE (pwrite, "pwrite is unportable - "
                 "use gnulib module pwrite for portability");
# endif
#endif


#if 0
/* Read up to COUNT bytes from file descriptor FD into the buffer starting
   at BUF.  See the POSIX:2008 specification
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html>.  */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef read
#   define read rpl_read
#  endif
_GL_FUNCDECL_RPL (read, ssize_t, (int fd, void *buf, size_t count)
                                 _GL_ARG_NONNULL ((2)));
_GL_CXXALIAS_RPL (read, ssize_t, (int fd, void *buf, size_t count));
# else
/* Need to cast, because on mingw, the third parameter is
                                                          unsigned int count
   and the return type is 'int'.  */
_GL_CXXALIAS_SYS_CAST (read, ssize_t, (int fd, void *buf, size_t count));
# endif
_GL_CXXALIASWARN (read);
#endif


#if 1
/* Read the contents of the symbolic link FILE and place the first BUFSIZE
   bytes of it into BUF.  Return the number of bytes placed into BUF if
   successful, otherwise -1 and errno set.
   See the POSIX:2008 specification
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>.  */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   define readlink rpl_readlink
#  endif
_GL_FUNCDECL_RPL (readlink, ssize_t,
                  (const char *file, char *buf, size_t bufsize)
                  _GL_ARG_NONNULL ((1, 2)));
_GL_CXXALIAS_RPL (readlink, ssize_t,
                  (const char *file, char *buf, size_t bufsize));
# else
#  if !0
_GL_FUNCDECL_SYS (readlink, ssize_t,
                  (const char *file, char *buf, size_t bufsize)
                  _GL_ARG_NONNULL ((1, 2)));
#  endif
_GL_CXXALIAS_SYS (readlink, ssize_t,
                  (const char *file, char *buf, size_t bufsize));
# endif
_GL_CXXALIASWARN (readlink);
#elif defined GNULIB_POSIXCHECK
# undef readlink
# if HAVE_RAW_DECL_READLINK
_GL_WARN_ON_USE (readlink, "readlink is unportable - "
                 "use gnulib module readlink for portability");
# endif
#endif


#if 0
# if !1
_GL_FUNCDECL_SYS (readlinkat, ssize_t,
                  (int fd, char const *file, char *buf, size_t len)
                  _GL_ARG_NONNULL ((2, 3)));
# endif
_GL_CXXALIAS_SYS (readlinkat, ssize_t,
                  (int fd, char const *file, char *buf, size_t len));
_GL_CXXALIASWARN (readlinkat);
#elif defined GNULIB_POSIXCHECK
# undef readlinkat
# if HAVE_RAW_DECL_READLINKAT
_GL_WARN_ON_USE (readlinkat, "readlinkat is not portable - "
                 "use gnulib module readlinkat for portability");
# endif
#endif


#if 1
/* Remove the directory DIR.  */
# if 1
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   define rmdir rpl_rmdir
#  endif
_GL_FUNCDECL_RPL (rmdir, int, (char const *name) _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (rmdir, int, (char const *name));
# else
_GL_CXXALIAS_SYS (rmdir, int, (char const *name));
# endif
_GL_CXXALIASWARN (rmdir);
#elif defined GNULIB_POSIXCHECK
# undef rmdir
# if HAVE_RAW_DECL_RMDIR
_GL_WARN_ON_USE (rmdir, "rmdir is unportable - "
                 "use gnulib module rmdir for portability");
# endif
#endif


#if 0
/* Set the host name of the machine.
   The host name may or may not be fully qualified.

   Put LEN bytes of NAME into the host name.
   Return 0 if successful, otherwise, set errno and return -1.

   Platforms with no ability to set the hostname return -1 and set
   errno = ENOSYS.  */
# if !1 || !1
_GL_FUNCDECL_SYS (sethostname, int, (const char *name, size_t len)
                                    _GL_ARG_NONNULL ((1)));
# endif
/* Need to cast, because on Solaris 11 2011-10, Mac OS X 10.5, IRIX 6.5
   and FreeBSD 6.4 the second parameter is int.  On Solaris 11
   2011-10, the first parameter is not const.  */
_GL_CXXALIAS_SYS_CAST (sethostname, int, (const char *name, size_t len));
_GL_CXXALIASWARN (sethostname);
#elif defined GNULIB_POSIXCHECK
# undef sethostname
# if HAVE_RAW_DECL_SETHOSTNAME
_GL_WARN_ON_USE (sethostname, "sethostname is unportable - "
                 "use gnulib module sethostname for portability");
# endif
#endif


#if IN_M4_GNULIB_TESTS
/* Pause the execution of the current thread for N seconds.
   Returns the number of seconds left to sleep.
   See the POSIX:2008 specification
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/sleep.html>.  */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef sleep
#   define sleep rpl_sleep
#  endif
_GL_FUNCDECL_RPL (sleep, unsigned int, (unsigned int n));
_GL_CXXALIAS_RPL (sleep, unsigned int, (unsigned int n));
# else
#  if !0
_GL_FUNCDECL_SYS (sleep, unsigned int, (unsigned int n));
#  endif
_GL_CXXALIAS_SYS (sleep, unsigned int, (unsigned int n));
# endif
_GL_CXXALIASWARN (sleep);
#elif defined GNULIB_POSIXCHECK
# undef sleep
# if HAVE_RAW_DECL_SLEEP
_GL_WARN_ON_USE (sleep, "sleep is unportable - "
                 "use gnulib module sleep for portability");
# endif
#endif


#if IN_M4_GNULIB_TESTS
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef symlink
#   define symlink rpl_symlink
#  endif
_GL_FUNCDECL_RPL (symlink, int, (char const *contents, char const *file)
                                _GL_ARG_NONNULL ((1, 2)));
_GL_CXXALIAS_RPL (symlink, int, (char const *contents, char const *file));
# else
#  if !0
_GL_FUNCDECL_SYS (symlink, int, (char const *contents, char const *file)
                                _GL_ARG_NONNULL ((1, 2)));
#  endif
_GL_CXXALIAS_SYS (symlink, int, (char const *contents, char const *file));
# endif
_GL_CXXALIASWARN (symlink);
#elif defined GNULIB_POSIXCHECK
# undef symlink
# if HAVE_RAW_DECL_SYMLINK
_GL_WARN_ON_USE (symlink, "symlink is not portable - "
                 "use gnulib module symlink for portability");
# endif
#endif


#if 0
# if !1
_GL_FUNCDECL_SYS (symlinkat, int,
                  (char const *contents, int fd, char const *file)
                  _GL_ARG_NONNULL ((1, 3)));
# endif
_GL_CXXALIAS_SYS (symlinkat, int,
                  (char const *contents, int fd, char const *file));
_GL_CXXALIASWARN (symlinkat);
#elif defined GNULIB_POSIXCHECK
# undef symlinkat
# if HAVE_RAW_DECL_SYMLINKAT
_GL_WARN_ON_USE (symlinkat, "symlinkat is not portable - "
                 "use gnulib module symlinkat for portability");
# endif
#endif


#if 0
/* Store at most BUFLEN characters of the pathname of the terminal FD is
   open on in BUF.  Return 0 on success, otherwise an error number.  */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef ttyname_r
#   define ttyname_r rpl_ttyname_r
#  endif
_GL_FUNCDECL_RPL (ttyname_r, int,
                  (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2)));
_GL_CXXALIAS_RPL (ttyname_r, int,
                  (int fd, char *buf, size_t buflen));
# else
#  if !1
_GL_FUNCDECL_SYS (ttyname_r, int,
                  (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2)));
#  endif
_GL_CXXALIAS_SYS (ttyname_r, int,
                  (int fd, char *buf, size_t buflen));
# endif
_GL_CXXALIASWARN (ttyname_r);
#elif defined GNULIB_POSIXCHECK
# undef ttyname_r
# if HAVE_RAW_DECL_TTYNAME_R
_GL_WARN_ON_USE (ttyname_r, "ttyname_r is not portable - "
                 "use gnulib module ttyname_r for portability");
# endif
#endif


#if 0
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef unlink
#   define unlink rpl_unlink
#  endif
_GL_FUNCDECL_RPL (unlink, int, (char const *file) _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (unlink, int, (char const *file));
# else
_GL_CXXALIAS_SYS (unlink, int, (char const *file));
# endif
_GL_CXXALIASWARN (unlink);
#elif defined GNULIB_POSIXCHECK
# undef unlink
# if HAVE_RAW_DECL_UNLINK
_GL_WARN_ON_USE (unlink, "unlink is not portable - "
                 "use gnulib module unlink for portability");
# endif
#endif


#if 0
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef unlinkat
#   define unlinkat rpl_unlinkat
#  endif
_GL_FUNCDECL_RPL (unlinkat, int, (int fd, char const *file, int flag)
                                 _GL_ARG_NONNULL ((2)));
_GL_CXXALIAS_RPL (unlinkat, int, (int fd, char const *file, int flag));
# else
#  if !1
_GL_FUNCDECL_SYS (unlinkat, int, (int fd, char const *file, int flag)
                                 _GL_ARG_NONNULL ((2)));
#  endif
_GL_CXXALIAS_SYS (unlinkat, int, (int fd, char const *file, int flag));
# endif
_GL_CXXALIASWARN (unlinkat);
#elif defined GNULIB_POSIXCHECK
# undef unlinkat
# if HAVE_RAW_DECL_UNLINKAT
_GL_WARN_ON_USE (unlinkat, "unlinkat is not portable - "
                 "use gnulib module openat for portability");
# endif
#endif


#if 0
/* Pause the execution of the current thread for N microseconds.
   Returns 0 on completion, or -1 on range error.
   See the POSIX:2001 specification
   <http://www.opengroup.org/susv3xsh/usleep.html>.  */
# if 0
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef usleep
#   define usleep rpl_usleep
#  endif
_GL_FUNCDECL_RPL (usleep, int, (useconds_t n));
_GL_CXXALIAS_RPL (usleep, int, (useconds_t n));
# else
#  if !1
_GL_FUNCDECL_SYS (usleep, int, (useconds_t n));
#  endif
_GL_CXXALIAS_SYS (usleep, int, (useconds_t n));
# endif
_GL_CXXALIASWARN (usleep);
#elif defined GNULIB_POSIXCHECK
# undef usleep
# if HAVE_RAW_DECL_USLEEP
_GL_WARN_ON_USE (usleep, "usleep is unportable - "
                 "use gnulib module usleep for portability");
# endif
#endif


#if IN_M4_GNULIB_TESTS
/* Write up to COUNT bytes starting at BUF to file descriptor FD.
   See the POSIX:2008 specification
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html>.  */
# if 1
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef write
#   define write rpl_write
#  endif
_GL_FUNCDECL_RPL (write, ssize_t, (int fd, const void *buf, size_t count)
                                  _GL_ARG_NONNULL ((2)));
_GL_CXXALIAS_RPL (write, ssize_t, (int fd, const void *buf, size_t count));
# else
/* Need to cast, because on mingw, the third parameter is
                                                             unsigned int count
   and the return type is 'int'.  */
_GL_CXXALIAS_SYS_CAST (write, ssize_t, (int fd, const void *buf, size_t count));
# endif
_GL_CXXALIASWARN (write);
#endif

_GL_INLINE_HEADER_END

#endif /* _GL_M4_UNISTD_H */
#endif /* _GL_M4_UNISTD_H */