summaryrefslogtreecommitdiffstats
path: root/Makefile
blob: d48354c72df46d1d61cebb4181607479cb7875bb (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
# Make and install tzdb code and data.
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.
# Request POSIX conformance; this must be the first non-comment line.
.POSIX:
# On older platforms you may need to scrounge for a POSIX-conforming 'make'.
# For example, on Solaris 10 (2005), use /usr/sfw/bin/gmake or
# /usr/xpg4/bin/make, not /usr/ccs/bin/make.

# To affect how this Makefile works, you can run a shell script like this:
#
#	#!/bin/sh
#	make CC='gcc -std=gnu11' "$@"
#
# This example script is appropriate for a pre-2017 GNU/Linux system
# where a non-default setting is needed to support this package's use of C99.
#
# Alternatively, you can simply edit this Makefile to tailor the following
# macro definitions.

###############################################################################
# Start of macros that one plausibly might want to tailor.

# Package name for the code distribution.
PACKAGE=	tzcode

# Version number for the distribution, overridden in the 'tarballs' rule below.
VERSION=	unknown

# Email address for bug reports.
BUGEMAIL=	tz@iana.org

# DATAFORM selects the data format.
# Available formats represent essentially the same data, albeit
# possibly with minor discrepancies that users are not likely to notice.
# To get new features and the best data right away, use:
#	DATAFORM=	vanguard
# To wait a while before using new features, to give downstream users
# time to upgrade zic (the default), use:
#	DATAFORM=	main
# To wait even longer for new features, use:
#	DATAFORM=	rearguard
# Rearguard users might also want "ZFLAGS = -b fat"; see below.
DATAFORM=		main

# Change the line below for your timezone (after finding the one you want in
# one of the $(TDATA) source files, or adding it to a source file).
# Alternatively, if you discover you've got the wrong timezone, you can just
# 'zic -l -' to remove it, or 'zic -l rightzone' to change it.
# Use the command
#	make zonenames
# to get a list of the values you can use for LOCALTIME.

LOCALTIME=	Factory

# The POSIXRULES macro controls interpretation of POSIX-2017.1-like TZ
# settings like TZ='EET-2EEST' that lack DST transition rules.
# If POSIXRULES is '-', no template is installed; this is the default.
# Any other value for POSIXRULES is obsolete and should not be relied on, as:
# * It does not work correctly in popular implementations such as GNU/Linux.
# * It does not work even in tzcode, except for historical timestamps
#   that precede the last explicit transition in the POSIXRULES file.
#   Hence it typically does not work for current and future timestamps.
# If, despite the above, you want a template for handling these settings,
# you can change the line below (after finding the timezone you want in the
# one of the $(TDATA) source files, or adding it to a source file).
# Alternatively, if you discover you've got the wrong timezone, you can just
# 'zic -p -' to remove it, or 'zic -p rightzone' to change it.
# Use the command
#	make zonenames
# to get a list of the values you can use for POSIXRULES.

POSIXRULES=	-

# Also see TZDEFRULESTRING below, which takes effect only
# if POSIXRULES is '-' or if the template file cannot be accessed.


# Installation locations.
#
# The defaults are suitable for Debian, except that if REDO is
# posix_right or right_posix then files that Debian puts under
# /usr/share/zoneinfo/posix and /usr/share/zoneinfo/right are instead
# put under /usr/share/zoneinfo-posix and /usr/share/zoneinfo-leaps,
# respectively.  Problems with the Debian approach are discussed in
# the commentary for the right_posix rule (below).

# Destination directory, which can be used for staging.
# 'make DESTDIR=/stage install' installs under /stage (e.g., to
# /stage/etc/localtime instead of to /etc/localtime).  Files under
# /stage are not intended to work as-is, but can be copied by hand to
# the root directory later.  If DESTDIR is empty, 'make install' does
# not stage, but installs directly into production locations.
DESTDIR =

# Everything is installed into subdirectories of TOPDIR, and used there.
# TOPDIR should be empty (meaning the root directory),
# or a directory name that does not end in "/".
# TOPDIR should be empty or an absolute name unless you're just testing.
TOPDIR =

# The default local timezone is taken from the file TZDEFAULT.
TZDEFAULT = $(TOPDIR)/etc/localtime

# The subdirectory containing installed program and data files, and
# likewise for installed files that can be shared among architectures.
# These should be relative file names.
USRDIR = usr
USRSHAREDIR = $(USRDIR)/share

# "Compiled" timezone information is placed in the "TZDIR" directory
# (and subdirectories).
# TZDIR_BASENAME should not contain "/" and should not be ".", ".." or empty.
TZDIR_BASENAME=	zoneinfo
TZDIR = $(TOPDIR)/$(USRSHAREDIR)/$(TZDIR_BASENAME)

# The "tzselect" and (if you do "make INSTALL") "date" commands go in:
BINDIR = $(TOPDIR)/$(USRDIR)/bin

# The "zdump" command goes in:
ZDUMPDIR = $(BINDIR)

# The "zic" command goes in:
ZICDIR = $(TOPDIR)/$(USRDIR)/sbin

# Manual pages go in subdirectories of. . .
MANDIR = $(TOPDIR)/$(USRSHAREDIR)/man

# Library functions are put in an archive in LIBDIR.
LIBDIR = $(TOPDIR)/$(USRDIR)/lib


# Types to try, as an alternative to time_t.
TIME_T_ALTERNATIVES = $(TIME_T_ALTERNATIVES_HEAD) $(TIME_T_ALTERNATIVES_TAIL)
TIME_T_ALTERNATIVES_HEAD = int_least64_t
TIME_T_ALTERNATIVES_TAIL = int_least32_t uint_least32_t uint_least64_t

# What kind of TZif data files to generate.  (TZif is the binary time
# zone data format that zic generates; see Internet RFC 8536.)
# If you want only POSIX time, with time values interpreted as
# seconds since the epoch (not counting leap seconds), use
#	REDO=		posix_only
# below.  If you want only "right" time, with values interpreted
# as seconds since the epoch (counting leap seconds), use
#	REDO=		right_only
# below.  If you want both sets of data available, with leap seconds not
# counted normally, use
#	REDO=		posix_right
# below.  If you want both sets of data available, with leap seconds counted
# normally, use
#	REDO=		right_posix
# below.  POSIX mandates that leap seconds not be counted; for compatibility
# with it, use "posix_only" or "posix_right".  Use POSIX time on systems with
# leap smearing; this can work better than unsmeared "right" time with
# applications that are not leap second aware, and is closer to unsmeared
# "right" time than unsmeared POSIX time is (e.g., 0.5 vs 1.0 s max error).

REDO=		posix_right

# Whether to put an "Expires" line in the leapseconds file.
# Use EXPIRES_LINE=1 to put the line in, 0 to omit it.
# The EXPIRES_LINE value matters only if REDO's value contains "right".
# If you change EXPIRES_LINE, remove the leapseconds file before running "make".
# zic's support for the Expires line was introduced in tzdb 2020a,
# and was modified in tzdb 2021b to generate version 4 TZif files.
# EXPIRES_LINE defaults to 0 for now so that the leapseconds file
# can be given to pre-2020a zic implementations and so that TZif files
# built by newer zic implementations can be read by pre-2021b libraries.
EXPIRES_LINE=	0

# To install data in text form that has all the information of the TZif data,
# (optionally incorporating leap second information), use
#	TZDATA_TEXT=	tzdata.zi leapseconds
# To install text data without leap second information (e.g., because
# REDO='posix_only'), use
#	TZDATA_TEXT=	tzdata.zi
# To avoid installing text data, use
#	TZDATA_TEXT=

TZDATA_TEXT=	leapseconds tzdata.zi

# For backward-compatibility links for old zone names, use
#	BACKWARD=	backward
# To omit these links, use
#	BACKWARD=

BACKWARD=	backward

# If you want out-of-scope and often-wrong data from the file 'backzone',
# but only for entries listed in the backward-compatibility file zone.tab, use
#	PACKRATDATA=	backzone
#	PACKRATLIST=	zone.tab
# If you want all the 'backzone' data, use
#	PACKRATDATA=	backzone
#	PACKRATLIST=
# To omit this data, use
#	PACKRATDATA=
#	PACKRATLIST=

PACKRATDATA=
PACKRATLIST=

# The name of a locale using the UTF-8 encoding, used during self-tests.
# The tests are skipped if the name does not appear to work on this system.

UTF8_LOCALE=	en_US.utf8

# Non-default libraries needed to link.
# On some hosts, this should have -lintl unless CFLAGS has -DHAVE_GETTEXT=0.
LDLIBS=

# Add the following to an uncommented "CFLAGS=" line as needed
# to override defaults specified in the source code or by the system.
# "-DFOO" is equivalent to "-DFOO=1".
#  -DDEPRECATE_TWO_DIGIT_YEARS for optional runtime warnings about strftime
#	formats that generate only the last two digits of year numbers
#  -DEPOCH_LOCAL if the 'time' function returns local time not UT
#  -DEPOCH_OFFSET=N if the 'time' function returns a value N greater
#	than what POSIX specifies, assuming local time is UT.
#	For example, N is 252460800 on AmigaOS.
#  -DHAVE_DECL_ASCTIME_R=0 if <time.h> does not declare asctime_r
#  -DHAVE_DECL_ENVIRON if <unistd.h> declares 'environ'
#  -DHAVE_DECL_TIMEGM=0 if <time.h> does not declare timegm
#  -DHAVE_DIRECT_H if mkdir needs <direct.h> (MS-Windows)
#  -DHAVE__GENERIC=0 if _Generic does not work*
#  -DHAVE_GETRANDOM if getrandom works (e.g., GNU/Linux),
#	-DHAVE_GETRANDOM=0 to avoid using getrandom
#  -DHAVE_GETTEXT if gettext works (e.g., GNU/Linux, FreeBSD, Solaris),
#	where LDLIBS also needs to contain -lintl on some hosts;
#	-DHAVE_GETTEXT=0 to avoid using gettext
#  -DHAVE_INCOMPATIBLE_CTIME_R if your system's time.h declares
#	ctime_r and asctime_r incompatibly with the POSIX standard
#	(Solaris when _POSIX_PTHREAD_SEMANTICS is not defined).
#  -DHAVE_INTTYPES_H=0 if <inttypes.h> does not work*+
#  -DHAVE_LINK=0 if your system lacks a link function
#  -DHAVE_LOCALTIME_R=0 if your system lacks a localtime_r function
#  -DHAVE_LOCALTIME_RZ=0 if you do not want zdump to use localtime_rz
#	localtime_rz can make zdump significantly faster, but is nonstandard.
#  -DHAVE_MALLOC_ERRNO=0 if malloc etc. do not set errno on failure.
#  -DHAVE_POSIX_DECLS=0 if your system's include files do not declare
#	functions like 'link' or variables like 'tzname' required by POSIX
#  -DHAVE_SETENV=0 if your system lacks the setenv function
#  -DHAVE_SNPRINTF=0 if your system lacks the snprintf function+
#  -DHAVE_STDCKDINT_H=0 if neither <stdckdint.h> nor substitutes like
#	__builtin_add_overflow work*
#  -DHAVE_STDINT_H=0 if <stdint.h> does not work*+
#  -DHAVE_STRFTIME_L if <time.h> declares locale_t and strftime_l
#  -DHAVE_STRDUP=0 if your system lacks the strdup function
#  -DHAVE_STRTOLL=0 if your system lacks the strtoll function+
#  -DHAVE_SYMLINK=0 if your system lacks the symlink function
#  -DHAVE_SYS_STAT_H=0 if <sys/stat.h> does not work*
#  -DHAVE_TZSET=0 if your system lacks a tzset function
#  -DHAVE_UNISTD_H=0 if <unistd.h> does not work*
#  -DHAVE_UTMPX_H=0 if <utmpx.h> does not work*
#  -Dlocale_t=XXX if your system uses XXX instead of locale_t
#  -DPORT_TO_C89 if tzcode should also run on mostly-C89 platforms+
#	Typically it is better to use a later standard.  For example,
#	with GCC 4.9.4 (2016), prefer '-std=gnu11' to '-DPORT_TO_C89'.
#	Even with -DPORT_TO_C89, the code needs at least one C99
#	feature (integers at least 64 bits wide) and maybe more.
#  -DRESERVE_STD_EXT_IDS if your platform reserves standard identifiers
#	with external linkage, e.g., applications cannot define 'localtime'.
#  -Dssize_t=long on hosts like MS-Windows that lack ssize_t
#  -DSUPPORT_C89 if the tzcode library should support C89 callers+
#	However, this might trigger latent bugs in C99-or-later callers.
#  -DSUPPRESS_TZDIR to not prepend TZDIR to file names; this has
#	security implications and is not recommended for general use
#  -DTHREAD_SAFE to make localtime.c thread-safe, as POSIX requires;
#	not needed by the main-program tz code, which is single-threaded.
#	Append other compiler flags as needed, e.g., -pthread on GNU/Linux.
#  -Dtime_tz=\"T\" to use T as the time_t type, rather than the system time_t
#	This is intended for internal use only; it mangles external names.
#  -DTZ_DOMAIN=\"foo\" to use "foo" for gettext domain name; default is "tz"
#  -DTZ_DOMAINDIR=\"/path\" to use "/path" for gettext directory;
#	the default is system-supplied, typically "/usr/lib/locale"
#  -DTZDEFRULESTRING=\",date/time,date/time\" to default to the specified
#	DST transitions for POSIX.1-2017-style TZ strings lacking them,
#	in the usual case where POSIXRULES is '-'.  If not specified,
#	TZDEFRULESTRING defaults to US rules for future DST transitions.
#	This mishandles some past timestamps, as US DST rules have changed.
#	It also mishandles settings like TZ='EET-2EEST' for eastern Europe,
#	as Europe and US DST rules differ.
#  -DTZNAME_MAXIMUM=N to limit time zone abbreviations to N bytes (default 255)
#  -DUNINIT_TRAP if reading uninitialized storage can cause problems
#	other than simply getting garbage data
#  -DUSE_LTZ=0 to build zdump with the system time zone library
#	Also set TZDOBJS=zdump.o and CHECK_TIME_T_ALTERNATIVES= below.
#  -DZIC_BLOAT_DEFAULT=\"fat\" to default zic's -b option to "fat", and
#	similarly for "slim".  Fat TZif files work around incompatibilities
#	and bugs in some TZif readers, notably older ones that
#	ignore or otherwise mishandle 64-bit data in TZif files;
#	however, fat TZif files may trigger bugs in newer TZif readers.
#	Slim TZif files are more efficient, and are the default.
#  -DZIC_MAX_ABBR_LEN_WO_WARN=3
#	(or some other number) to set the maximum time zone abbreviation length
#	that zic will accept without a warning (the default is 6)
#  -g to generate symbolic debugging info
#  -Idir to include from directory 'dir'
#  -O0 to disable optimization; other -O options to enable more optimization
#  -Uname to remove any definition of the macro 'name'
#  $(GCC_DEBUG_FLAGS) if you are using recent GCC and want lots of checking
#
# * Options marked "*" can be omitted if your compiler is C23 compatible.
# * Options marked "+" are obsolescent and are planned to be removed
#   once the code assumes C99 or later, say in the year 2029.
#
# Select instrumentation via "make GCC_INSTRUMENT='whatever'".
GCC_INSTRUMENT = \
  -fsanitize=undefined -fsanitize-address-use-after-scope \
  -fsanitize-undefined-trap-on-error -fstack-protector
# Omit -fanalyzer from GCC_DEBUG_FLAGS, as it makes GCC too slow.
GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 -fno-common \
  $(GCC_INSTRUMENT) \
  -Wall -Wextra \
  -Walloc-size-larger-than=100000 -Warray-bounds=2 \
  -Wbad-function-cast -Wbidi-chars=any,ucn -Wcast-align=strict -Wdate-time \
  -Wdeclaration-after-statement -Wdouble-promotion \
  -Wduplicated-branches -Wduplicated-cond \
  -Wformat=2 -Wformat-overflow=2 -Wformat-signedness -Wformat-truncation \
  -Wimplicit-fallthrough=5 -Winit-self -Wlogical-op \
  -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
  -Wnull-dereference \
  -Wold-style-definition -Woverlength-strings -Wpointer-arith \
  -Wshadow -Wshift-overflow=2 -Wstrict-overflow \
  -Wstrict-prototypes -Wstringop-overflow=4 \
  -Wstringop-truncation -Wsuggest-attribute=cold \
  -Wsuggest-attribute=const -Wsuggest-attribute=format \
  -Wsuggest-attribute=malloc \
  -Wsuggest-attribute=noreturn -Wsuggest-attribute=pure \
  -Wtrampolines -Wundef -Wuninitialized -Wunused-macros -Wuse-after-free=3 \
  -Wvariadic-macros -Wvla -Wwrite-strings \
  -Wno-address -Wno-format-nonliteral -Wno-sign-compare \
  -Wno-type-limits
#
# If your system has a "GMT offset" field in its "struct tm"s
# (or if you decide to add such a field in your system's "time.h" file),
# add the name to a define such as
#	-DTM_GMTOFF=tm_gmtoff
# to the end of the "CFLAGS=" line.  If not defined, the code attempts to
# guess TM_GMTOFF from other macros; define NO_TM_GMTOFF to suppress this.
# Similarly, if your system has a "zone abbreviation" field, define
#	-DTM_ZONE=tm_zone
# and define NO_TM_ZONE to suppress any guessing.
# Although these two fields are not required by POSIX.1-2017,
# POSIX 202x/D4 requires them and they are widely available
# on GNU/Linux and BSD systems.
#
# The next batch of options control support for external variables
# exported by tzcode.  In practice these variables are less useful
# than TM_GMTOFF and TM_ZONE.  However, most of them are standardized.
# #
# # To omit or support the external variable "tzname", add one of:
# #	-DHAVE_TZNAME=0 # do not support "tzname"
# #	-DHAVE_TZNAME=1 # support "tzname", which is defined by system library
# #	-DHAVE_TZNAME=2 # support and define "tzname"
# # to the "CFLAGS=" line.  "tzname" is required by POSIX.1-1988 and later.
# # If not defined, the code attempts to guess HAVE_TZNAME from other macros.
# # Warning: unless time_tz is also defined, HAVE_TZNAME=1 can cause
# # crashes when combined with some platforms' standard libraries,
# # presumably due to memory allocation issues.
# #
# # To omit or support the external variables "timezone" and "daylight", add
# #	-DUSG_COMPAT=0 # do not support
# #	-DUSG_COMPAT=1 # support, and variables are defined by system library
# #	-DUSG_COMPAT=2 # support and define variables
# # to the "CFLAGS=" line; "timezone" and "daylight" are inspired by Unix
# # Systems Group code and are required by POSIX.1-2008 and later (with XSI).
# # If not defined, the code attempts to guess USG_COMPAT from other macros.
# #
# # To support the external variable "altzone", add
# #	-DALTZONE=0 # do not support
# #	-DALTZONE=1 # support "altzone", which is defined by system library
# #	-DALTZONE=2 # support and define "altzone"
# # to the end of the "CFLAGS=" line; although "altzone" appeared in
# # System V Release 3.1 it has not been standardized.
# # If not defined, the code attempts to guess ALTZONE from other macros.
#
# If you want functions that were inspired by early versions of X3J11's work,
# add
#	-DSTD_INSPIRED
# to the end of the "CFLAGS=" line.  This arranges for the following
# functions to be added to the time conversion library.
# "offtime" is like "gmtime" except that it accepts a second (long) argument
# that gives an offset to add to the time_t when converting it.
# I.e., "offtime" is like calling "localtime_rz" with a fixed-offset zone.
# "timelocal" is nearly equivalent to "mktime".
# "timeoff" is like "timegm" except that it accepts a second (long) argument
# that gives an offset to use when converting to a time_t.
# I.e., "timeoff" is like calling "mktime_z" with a fixed-offset zone.
# "posix2time" and "time2posix" are described in an included manual page.
# X3J11's work does not describe any of these functions.
# These functions may well disappear in future releases of the time
# conversion package.
#
# If you don't want functions that were inspired by NetBSD, add
#	-DNETBSD_INSPIRED=0
# to the end of the "CFLAGS=" line.  Otherwise, the functions
# "localtime_rz", "mktime_z", "tzalloc", and "tzfree" are added to the
# time library, and if STD_INSPIRED is also defined to nonzero the functions
# "posix2time_z" and "time2posix_z" are added as well.
# The functions ending in "_z" (or "_rz") are like their unsuffixed
# (or suffixed-by-"_r") counterparts, except with an extra first
# argument of opaque type timezone_t that specifies the timezone.
# "tzalloc" allocates a timezone_t value, and "tzfree" frees it.
#
# If you want to allocate state structures in localtime, add
#	-DALL_STATE
# to the end of the "CFLAGS=" line.  Storage is obtained by calling malloc.
#
# NIST-PCTS:151-2, Version 1.4, (1993-12-03) is a test suite put
# out by the National Institute of Standards and Technology
# which claims to test C and POSIX conformance.  If you want to pass PCTS, add
#	-DPCTS
# to the end of the "CFLAGS=" line.
#
# If you want strict compliance with XPG4 as of 1994-04-09, add
#	-DXPG4_1994_04_09
# to the end of the "CFLAGS=" line.  This causes "strftime" to always return
# 53 as a week number (rather than 52 or 53) for January days before
# January's first Monday when a "%V" format is used and January 1
# falls on a Friday, Saturday, or Sunday.
#
# POSIX says CFLAGS defaults to "-O 1".
# Uncomment the following line and edit its contents as needed.

#CFLAGS= -O 1


# The name of a POSIX-like library archiver, its flags, C compiler,
# linker flags, and 'make' utility.  Ordinarily the defaults suffice.
# The commented-out values are the defaults specified by POSIX.1-202x/D4.
#AR = ar
#ARFLAGS = -rv
#CC = c17
#LDFLAGS =
#MAKE = make

# For leap seconds, this Makefile uses LEAPSECONDS='-L leapseconds' in
# submake command lines.  The default is no leap seconds.

LEAPSECONDS=

# Where to fetch leap-seconds.list from.
leaplist_URI = \
  https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list
# The file is generated by the IERS Earth Orientation Centre, in Paris.
leaplist_TZ = Europe/Paris

# The zic command and its arguments.

zic=		./zic
ZIC=		$(zic) $(ZFLAGS)

# To shrink the size of installed TZif files,
# append "-r @N" to omit data before N-seconds-after-the-Epoch.
# To grow the files and work around bugs in older applications,
# possibly at the expense of introducing bugs in newer ones,
# append "-b fat"; see ZIC_BLOAT_DEFAULT above.
# See the zic man page for more about -b and -r.
ZFLAGS=

# How to use zic to install TZif files.

ZIC_INSTALL=	$(ZIC) -d '$(DESTDIR)$(TZDIR)' $(LEAPSECONDS)

# The name of a POSIX-compliant 'awk' on your system.
# mawk 1.3.3 and Solaris 10 /usr/bin/awk do not work.
# Also, it is better (though not essential) if 'awk' supports UTF-8,
# and unfortunately mawk and busybox awk do not support UTF-8.
# Try AWK=gawk or AWK=nawk if your awk has the abovementioned problems.
AWK=		awk

# The full path name of a POSIX-compliant shell, preferably one that supports
# the Korn shell's 'select' statement as an extension.
# These days, Bash is the most popular.
# It should be OK to set this to /bin/sh, on platforms where /bin/sh
# lacks 'select' or doesn't completely conform to POSIX, but /bin/bash
# is typically nicer if it works.
KSHELL=		/bin/bash

# Name of curl <https://curl.haxx.se/>, used for HTML validation
# and to fetch leap-seconds.list from upstream.
CURL=		curl

# Name of GNU Privacy Guard <https://gnupg.org/>, used to sign distributions.
GPG=		gpg

# This expensive test requires USE_LTZ.
# To suppress it, define this macro to be empty.
CHECK_TIME_T_ALTERNATIVES = check_time_t_alternatives

# SAFE_CHAR is a regular expression that matches a safe character.
# Some parts of this distribution are limited to safe characters;
# others can use any UTF-8 character.
# For now, the safe characters are a safe subset of ASCII.
# The caller must set the shell variable 'sharp' to the character '#',
# since Makefile macros cannot contain '#'.
# TAB_CHAR is a single tab character, in single quotes.
TAB_CHAR=	'	'
SAFE_CHARSET1=	$(TAB_CHAR)' !\"'$$sharp'$$%&'\''()*+,./0123456789:;<=>?@'
SAFE_CHARSET2=	'ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\^_`'
SAFE_CHARSET3=	'abcdefghijklmnopqrstuvwxyz{|}~'
SAFE_CHARSET=	$(SAFE_CHARSET1)$(SAFE_CHARSET2)$(SAFE_CHARSET3)
SAFE_CHAR=	'[]'$(SAFE_CHARSET)'-]'

# These non-alphabetic, non-ASCII printable characters are Latin-1,
# and so are likely displayable even in editors like XEmacs 21
# that have limited display capabilities.
UNUSUAL_OK_LATIN_1 = ¡¢£¤¥¦§¨©«¬®¯°±²³´¶·¸¹»¼½¾¿×÷
# Non-ASCII non-letters that OK_CHAR allows, as these characters are
# useful in commentary.
UNUSUAL_OK_CHARSET= $(UNUSUAL_OK_LATIN_1)

# Put this in a bracket expression to match spaces.
s = [:space:]

# OK_CHAR matches any character allowed in the distributed files.
# This is the same as SAFE_CHAR, except that UNUSUAL_OK_CHARSET and
# multibyte letters are also allowed so that commentary can contain a
# few safe symbols and people's names and can quote non-English sources.
# Other non-letters are limited to ASCII renderings for the
# convenience of maintainers using XEmacs 21.5.34, which by default
# mishandles Unicode characters U+0100 and greater.
OK_CHAR=	'[][:alpha:]$(UNUSUAL_OK_CHARSET)'$(SAFE_CHARSET)'-]'

# SAFE_LINE matches a line of safe characters.
# SAFE_SHARP_LINE is similar, except any OK character can follow '#';
# this is so that comments can contain non-ASCII characters.
# OK_LINE matches a line of OK characters.
SAFE_LINE=	'^'$(SAFE_CHAR)'*$$'
SAFE_SHARP_LINE='^'$(SAFE_CHAR)'*('$$sharp$(OK_CHAR)'*)?$$'
OK_LINE=	'^'$(OK_CHAR)'*$$'

# Flags to give 'tar' when making a distribution.
# Try to use flags appropriate for GNU tar.
GNUTARFLAGS= --format=pax --pax-option='delete=atime,delete=ctime' \
  --numeric-owner --owner=0 --group=0 \
  --mode=go+u,go-w --sort=name
TARFLAGS=	`if tar $(GNUTARFLAGS) --version >/dev/null 2>&1; \
		 then echo $(GNUTARFLAGS); \
		 else :; \
		 fi`

# Flags to give 'gzip' when making a distribution.
GZIPFLAGS=	-9n

# When comparing .tzs files, use GNU diff's -F'^TZ=' option if supported.
# This makes it easier to see which Zone has been affected.
DIFF_TZS=	 diff -u$$(! diff -u -F'^TZ=' - - <>/dev/null >&0 2>&1 \
			   || echo ' -F^TZ=')

# ':' on typical hosts; 'ranlib' on the ancient hosts that still need ranlib.
RANLIB=		:

# POSIX prohibits defining or using SHELL.  However, csh users on systems
# that use the user shell for Makefile commands may need to define SHELL.
#SHELL=		/bin/sh

# End of macros that one plausibly might want to tailor.
###############################################################################


TZCOBJS=	zic.o
TZDOBJS=	zdump.o localtime.o asctime.o strftime.o
DATEOBJS=	date.o localtime.o strftime.o asctime.o
LIBSRCS=	localtime.c asctime.c difftime.c strftime.c
LIBOBJS=	localtime.o asctime.o difftime.o strftime.o
HEADERS=	tzfile.h private.h
NONLIBSRCS=	zic.c zdump.c
NEWUCBSRCS=	date.c
SOURCES=	$(HEADERS) $(LIBSRCS) $(NONLIBSRCS) $(NEWUCBSRCS) \
			tzselect.ksh workman.sh
MANS=		newctime.3 newstrftime.3 newtzset.3 time2posix.3 \
			tzfile.5 tzselect.8 zic.8 zdump.8
MANTXTS=	newctime.3.txt newstrftime.3.txt newtzset.3.txt \
			time2posix.3.txt \
			tzfile.5.txt tzselect.8.txt zic.8.txt zdump.8.txt \
			date.1.txt
COMMON=		calendars CONTRIBUTING LICENSE Makefile \
			NEWS README SECURITY theory.html version
WEB_PAGES=	tz-art.html tz-how-to.html tz-link.html
CHECK_WEB_PAGES=check_theory.html check_tz-art.html \
			check_tz-how-to.html check_tz-link.html
DOCS=		$(MANS) date.1 $(MANTXTS) $(WEB_PAGES)
PRIMARY_YDATA=	africa antarctica asia australasia \
		europe northamerica southamerica
YDATA=		$(PRIMARY_YDATA) etcetera
NDATA=		factory
TDATA_TO_CHECK=	$(YDATA) $(NDATA) backward
TDATA=		$(YDATA) $(NDATA) $(BACKWARD)
ZONETABLES=	zone.tab zone1970.tab zonenow.tab
TABDATA=	iso3166.tab $(TZDATA_TEXT) $(ZONETABLES)
LEAP_DEPS=	leapseconds.awk leap-seconds.list
TZDATA_ZI_DEPS=	ziguard.awk zishrink.awk version $(TDATA) \
		  $(PACKRATDATA) $(PACKRATLIST)
DSTDATA_ZI_DEPS= ziguard.awk $(TDATA) $(PACKRATDATA) $(PACKRATLIST)
DATA=		$(TDATA_TO_CHECK) backzone iso3166.tab leap-seconds.list \
			leapseconds $(ZONETABLES)
AWK_SCRIPTS=	checklinks.awk checknow.awk checktab.awk leapseconds.awk \
			ziguard.awk zishrink.awk
MISC=		$(AWK_SCRIPTS)
TZS_YEAR=	2050
TZS_CUTOFF_FLAG=	-c $(TZS_YEAR)
TZS=		to$(TZS_YEAR).tzs
TZS_NEW=	to$(TZS_YEAR)new.tzs
TZS_DEPS=	$(YDATA) asctime.c localtime.c \
			private.h tzfile.h zdump.c zic.c
TZDATA_DIST = $(COMMON) $(DATA) $(MISC)
# EIGHT_YARDS is just a yard short of the whole ENCHILADA.
EIGHT_YARDS = $(TZDATA_DIST) $(DOCS) $(SOURCES) tzdata.zi
ENCHILADA = $(EIGHT_YARDS) $(TZS)

# Consult these files when deciding whether to rebuild the 'version' file.
# This list is not the same as the output of 'git ls-files', since
# .gitignore is not distributed.
VERSION_DEPS= \
		calendars CONTRIBUTING LICENSE Makefile NEWS README SECURITY \
		africa antarctica asctime.c asia australasia \
		backward backzone \
		checklinks.awk checknow.awk checktab.awk \
		date.1 date.c difftime.c \
		etcetera europe factory iso3166.tab \
		leap-seconds.list leapseconds.awk localtime.c \
		newctime.3 newstrftime.3 newtzset.3 northamerica \
		private.h southamerica strftime.c theory.html \
		time2posix.3 tz-art.html tz-how-to.html tz-link.html \
		tzfile.5 tzfile.h tzselect.8 tzselect.ksh \
		workman.sh zdump.8 zdump.c zic.8 zic.c \
		ziguard.awk zishrink.awk \
		zone.tab zone1970.tab zonenow.tab

all:		tzselect zic zdump libtz.a $(TABDATA) \
		  vanguard.zi main.zi rearguard.zi

ALL:		all date $(ENCHILADA)

install:	all $(DATA) $(REDO) $(MANS)
		mkdir -p '$(DESTDIR)$(BINDIR)' \
			'$(DESTDIR)$(ZDUMPDIR)' '$(DESTDIR)$(ZICDIR)' \
			'$(DESTDIR)$(LIBDIR)' \
			'$(DESTDIR)$(MANDIR)/man3' '$(DESTDIR)$(MANDIR)/man5' \
			'$(DESTDIR)$(MANDIR)/man8'
		$(ZIC_INSTALL) -l $(LOCALTIME) \
			`case '$(POSIXRULES)' in ?*) echo '-p';; esac \
			` $(POSIXRULES) \
			-t '$(DESTDIR)$(TZDEFAULT)'
		cp -f $(TABDATA) '$(DESTDIR)$(TZDIR)/.'
		cp tzselect '$(DESTDIR)$(BINDIR)/.'
		cp zdump '$(DESTDIR)$(ZDUMPDIR)/.'
		cp zic '$(DESTDIR)$(ZICDIR)/.'
		cp libtz.a '$(DESTDIR)$(LIBDIR)/.'
		$(RANLIB) '$(DESTDIR)$(LIBDIR)/libtz.a'
		cp -f newctime.3 newtzset.3 '$(DESTDIR)$(MANDIR)/man3/.'
		cp -f tzfile.5 '$(DESTDIR)$(MANDIR)/man5/.'
		cp -f tzselect.8 zdump.8 zic.8 '$(DESTDIR)$(MANDIR)/man8/.'

INSTALL:	ALL install date.1
		mkdir -p '$(DESTDIR)$(BINDIR)' '$(DESTDIR)$(MANDIR)/man1'
		cp date '$(DESTDIR)$(BINDIR)/.'
		cp -f date.1 '$(DESTDIR)$(MANDIR)/man1/.'

# Calculate version number from git, if available.
# Otherwise, use $(VERSION) unless it is "unknown" and there is already
# a 'version' file, in which case reuse the existing 'version' contents
# and append "-dirty" if the contents do not already end in "-dirty".
version:	$(VERSION_DEPS)
		{ (type git) >/dev/null 2>&1 && \
		  V=`git describe --match '[0-9][0-9][0-9][0-9][a-z]*' \
				--abbrev=7 --dirty` || \
		  if test '$(VERSION)' = unknown && V=`cat $@`; then \
		    case $$V in *-dirty);; *) V=$$V-dirty;; esac; \
		  else \
		    V='$(VERSION)'; \
		  fi; } && \
		printf '%s\n' "$$V" >$@.out
		mv $@.out $@

# These files can be tailored by setting BACKWARD, PACKRATDATA, PACKRATLIST.
vanguard.zi main.zi rearguard.zi: $(DSTDATA_ZI_DEPS)
		$(AWK) \
		  -v DATAFORM=`expr $@ : '\(.*\).zi'` \
		  -v PACKRATDATA='$(PACKRATDATA)' \
		  -v PACKRATLIST='$(PACKRATLIST)' \
		  -f ziguard.awk \
		  $(TDATA) $(PACKRATDATA) >$@.out
		mv $@.out $@
# This file has a version comment that attempts to capture any tailoring
# via BACKWARD, DATAFORM, PACKRATDATA, PACKRATLIST, and REDO.
tzdata.zi:	$(DATAFORM).zi version zishrink.awk
		version=`sed 1q version` && \
		  LC_ALL=C $(AWK) \
		    -v dataform='$(DATAFORM)' \
		    -v deps='$(DSTDATA_ZI_DEPS) zishrink.awk' \
		    -v redo='$(REDO)' \
		    -v version="$$version" \
		    -f zishrink.awk \
		    $(DATAFORM).zi >$@.out
		mv $@.out $@

tzdir.h:
		printf '%s\n' >$@.out \
		  '#ifndef TZDEFAULT' \
		  '# define TZDEFAULT "$(TZDEFAULT)" /* default zone */' \
		  '#endif' \
		  '#ifndef TZDIR' \
		  '# define TZDIR "$(TZDIR)" /* TZif directory */' \
		  '#endif'
		mv $@.out $@

version.h:	version
		VERSION=`cat version` && printf '%s\n' \
		  'static char const PKGVERSION[]="($(PACKAGE)) ";' \
		  "static char const TZVERSION[]=\"$$VERSION\";" \
		  'static char const REPORT_BUGS_TO[]="$(BUGEMAIL)";' \
		  >$@.out
		mv $@.out $@

zdump:		$(TZDOBJS)
		$(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZDOBJS) $(LDLIBS)

zic:		$(TZCOBJS)
		$(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZCOBJS) $(LDLIBS)

leapseconds:	$(LEAP_DEPS)
		$(AWK) -v EXPIRES_LINE=$(EXPIRES_LINE) \
		  -f leapseconds.awk leap-seconds.list >$@.out
		mv $@.out $@

# Awk script to extract a Git-style author from leap-seconds.list comments.
EXTRACT_AUTHOR = \
  author_line { sub(/^.[[:space:]]*/, ""); \
      sub(/:[[:space:]]*/, " <"); \
      printf "%s>\n", $$0; \
      success = 1; \
      exit \
  } \
  /Questions or comments to:/ { author_line = 1 } \
  END { exit !success }

# Fetch leap-seconds.list from upstream.
fetch-leap-seconds.list:
		$(CURL) -OR $(leaplist_URI)

# Fetch leap-seconds.list from upstream and commit it to the local repository.
commit-leap-seconds.list: fetch-leap-seconds.list
		author=$$($(AWK) '$(EXTRACT_AUTHOR)' leap-seconds.list) && \
		date=$$(TZ=$(leaplist_TZ) stat -c%y leap-seconds.list) && \
		git commit --author="$$author" --date="$$date" -m'make $@' \
		  leap-seconds.list

# Arguments to pass to submakes of install_data.
# They can be overridden by later submake arguments.
INSTALLARGS = \
 BACKWARD='$(BACKWARD)' \
 DESTDIR='$(DESTDIR)' \
 LEAPSECONDS='$(LEAPSECONDS)' \
 PACKRATDATA='$(PACKRATDATA)' \
 PACKRATLIST='$(PACKRATLIST)' \
 TZDEFAULT='$(TZDEFAULT)' \
 TZDIR='$(TZDIR)' \
 ZIC='$(ZIC)'

INSTALL_DATA_DEPS = zic leapseconds tzdata.zi

# 'make install_data' installs one set of TZif files.
install_data: $(INSTALL_DATA_DEPS)
		$(ZIC_INSTALL) tzdata.zi

posix_only: $(INSTALL_DATA_DEPS)
		$(MAKE) $(INSTALLARGS) LEAPSECONDS= install_data

right_only: $(INSTALL_DATA_DEPS)
		$(MAKE) $(INSTALLARGS) LEAPSECONDS='-L leapseconds' \
			install_data

# In earlier versions of this makefile, the other two directories were
# subdirectories of $(TZDIR).  However, this led to configuration errors.
# For example, with posix_right under the earlier scheme,
# TZ='right/Australia/Adelaide' got you localtime with leap seconds,
# but gmtime without leap seconds, which led to problems with applications
# like sendmail that subtract gmtime from localtime.
# Therefore, the other two directories are now siblings of $(TZDIR).
# You must replace all of $(TZDIR) to switch from not using leap seconds
# to using them, or vice versa.
right_posix:	right_only
		rm -fr '$(DESTDIR)$(TZDIR)-leaps'
		ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-leaps' || \
		  $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only
		$(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only

posix_right:	posix_only
		rm -fr '$(DESTDIR)$(TZDIR)-posix'
		ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-posix' || \
		  $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only
		$(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only

zones:		$(REDO)

# dummy.zd is not a real file; it is mentioned here only so that the
# top-level 'make' does not have a syntax error.
ZDS = dummy.zd
# Rule used only by submakes invoked by the $(TZS_NEW) rule.
# It is separate so that GNU 'make -j' can run instances in parallel.
$(ZDS): zdump
		./zdump -i $(TZS_CUTOFF_FLAG) '$(wd)/'$$(expr $@ : '\(.*\).zd') \
		  >$@

TZS_NEW_DEPS = tzdata.zi zdump zic
$(TZS_NEW): $(TZS_NEW_DEPS)
		rm -fr tzs$(TZS_YEAR).dir
		mkdir tzs$(TZS_YEAR).dir
		$(zic) -d tzs$(TZS_YEAR).dir tzdata.zi
		$(AWK) '/^L/{print "Link\t" $$2 "\t" $$3}' \
		   tzdata.zi | LC_ALL=C sort >$@.out
		wd=`pwd` && \
		x=`$(AWK) '/^Z/{print "tzs$(TZS_YEAR).dir/" $$2 ".zd"}' \
				tzdata.zi \
			| LC_ALL=C sort -t . -k 2,2` && \
		set x $$x && \
		shift && \
		ZDS=$$* && \
		$(MAKE) wd="$$wd" TZS_CUTOFF_FLAG="$(TZS_CUTOFF_FLAG)" \
		  ZDS="$$ZDS" $$ZDS && \
		sed 's,^TZ=".*\.dir/,TZ=",' $$ZDS >>$@.out
		rm -fr tzs$(TZS_YEAR).dir
		mv $@.out $@

# If $(TZS) exists but 'make check_tzs' fails, a maintainer should inspect the
# failed output and fix the inconsistency, perhaps by running 'make force_tzs'.
$(TZS):
		touch $@

force_tzs:	$(TZS_NEW)
		cp $(TZS_NEW) $(TZS)

libtz.a:	$(LIBOBJS)
		rm -f $@
		$(AR) $(ARFLAGS) $@ $(LIBOBJS)
		$(RANLIB) $@

date:		$(DATEOBJS)
		$(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(DATEOBJS) $(LDLIBS)

tzselect:	tzselect.ksh version
		VERSION=`cat version` && sed \
		  -e "s'#!/bin/bash'#!"'$(KSHELL)'\' \
		  -e s\''\(AWK\)=[^}]*'\''\1=\'\''$(AWK)\'\'\' \
		  -e s\''\(PKGVERSION\)=.*'\''\1=\'\''($(PACKAGE)) \'\'\' \
		  -e s\''\(REPORT_BUGS_TO\)=.*'\''\1=\'\''$(BUGEMAIL)\'\'\' \
		  -e s\''\(TZDIR\)=[^}]*'\''\1=\'\''$(TZDIR)\'\'\' \
		  -e s\''\(TZVERSION\)=.*'\''\1=\'"'$$VERSION\\''" \
		  <$@.ksh >$@.out
		chmod +x $@.out
		mv $@.out $@

check: check_back check_mild
check_mild:	check_character_set check_white_space check_links \
		  check_name_lengths check_now \
		  check_slashed_abbrs check_sorted \
		  check_tables check_web check_ziguard check_zishrink check_tzs

# True if UTF8_LOCALE does not work;
# otherwise, false but with LC_ALL set to $(UTF8_LOCALE).
UTF8_LOCALE_MISSING = \
  { test ! '$(UTF8_LOCALE)' \
    || ! printf 'A\304\200B\n' \
         | LC_ALL='$(UTF8_LOCALE)' grep -q '^A.B$$' >/dev/null 2>&1 \
    || { LC_ALL='$(UTF8_LOCALE)'; export LC_ALL; false; }; }

check_character_set: $(ENCHILADA)
	$(UTF8_LOCALE_MISSING) || { \
		sharp='#' && \
		! grep -Env $(SAFE_LINE) $(MANS) date.1 $(MANTXTS) \
			$(MISC) $(SOURCES) $(WEB_PAGES) \
			CONTRIBUTING LICENSE README SECURITY \
			version tzdata.zi && \
		! grep -Env $(SAFE_LINE)'|^UNUSUAL_OK_'$(OK_CHAR)'*$$' \
			Makefile && \
		! grep -Env $(SAFE_SHARP_LINE) $(TDATA_TO_CHECK) backzone \
			leapseconds zone.tab && \
		! grep -Env $(OK_LINE) $(ENCHILADA); \
	}
	touch $@

check_white_space: $(ENCHILADA)
	$(UTF8_LOCALE_MISSING) || { \
		patfmt=' \t|[\f\r\v]' && pat=`printf "$$patfmt\\n"` && \
		! grep -En "$$pat|[$s]\$$" \
			$$(ls $(ENCHILADA) | grep -Fvx leap-seconds.list); \
	}
	touch $@

PRECEDES_FILE_NAME = ^(Zone|Link[$s]+[^$s]+)[$s]+
FILE_NAME_COMPONENT_TOO_LONG = $(PRECEDES_FILE_NAME)[^$s]*[^/$s]{15}

check_name_lengths: $(TDATA_TO_CHECK) backzone
		! grep -En '$(FILE_NAME_COMPONENT_TOO_LONG)' \
			$(TDATA_TO_CHECK) backzone
		touch $@

PRECEDES_STDOFF = ^(Zone[$s]+[^$s]+)?[$s]+
STDOFF = [-+]?[0-9:.]+
RULELESS_SAVE = (-|$(STDOFF)[sd]?)
RULELESS_SLASHED_ABBRS = \
  $(PRECEDES_STDOFF)$(STDOFF)[$s]+$(RULELESS_SAVE)[$s]+[^$s]*/

check_slashed_abbrs: $(TDATA_TO_CHECK)
		! grep -En '$(RULELESS_SLASHED_ABBRS)' $(TDATA_TO_CHECK)
		touch $@

CHECK_CC_LIST = { n = split($$1,a,/,/); for (i=2; i<=n; i++) print a[1], a[i]; }

check_sorted: backward backzone
		$(AWK) '/^Link/ {printf "%.5d %s\n", g, $$3} !/./ {g++}' \
		  backward | LC_ALL=C sort -cu
		$(AWK) '/^Zone/ {print $$2}' backzone | LC_ALL=C sort -cu
		touch $@

check_back:	checklinks.awk $(TDATA_TO_CHECK)
		$(AWK) \
		  -v DATAFORM=$(DATAFORM) \
		  -v backcheck=backward \
		  -f checklinks.awk $(TDATA_TO_CHECK)
		touch $@

check_links:	checklinks.awk tzdata.zi
		$(AWK) \
		  -v DATAFORM=$(DATAFORM) \
		  -f checklinks.awk tzdata.zi
		touch $@

# Check timestamps from now through 28 years from now, to make sure
# that zonenow.tab contains all sequences of planned timestamps,
# without any duplicate sequences.  In theory this might require
# 2800 years but that would take a long time to check.
CHECK_NOW_TIMESTAMP = `./date +%s`
CHECK_NOW_FUTURE_YEARS = 28
CHECK_NOW_FUTURE_SECS = $(CHECK_NOW_FUTURE_YEARS) '*' 366 '*' 24 '*' 60 '*' 60
check_now:	checknow.awk date tzdata.zi zdump zic zone1970.tab zonenow.tab
		rm -fr $@.dir
		mkdir $@.dir
		./zic -d $@.dir tzdata.zi
		now=$(CHECK_NOW_TIMESTAMP) && \
		  future=`expr $(CHECK_NOW_FUTURE_SECS) + $$now` && \
		  ./zdump -i -t $$now,$$future \
		     $$(find $$PWD/$@.dir/????*/ -type f) \
		     >$@.dir/zdump.tab
		$(AWK) \
		  -v zdump_table=$@.dir/zdump.tab \
		  -f checknow.awk zonenow.tab
		rm -fr $@.dir
		touch $@

check_tables:	checktab.awk $(YDATA) backward zone.tab zone1970.tab
		for tab in $(ZONETABLES); do \
		  test "$$tab" = zone.tab && links='$(BACKWARD)' || links=''; \
		  $(AWK) -f checktab.awk -v zone_table=$$tab $(YDATA) $$links \
		    || exit; \
		done
		touch $@

check_tzs:	$(TZS) $(TZS_NEW)
		if test -s $(TZS); then \
		  $(DIFF_TZS) $(TZS) $(TZS_NEW); \
		else \
		  cp $(TZS_NEW) $(TZS); \
		fi
		touch $@

check_web:	$(CHECK_WEB_PAGES)
check_theory.html: theory.html
check_tz-art.html: tz-art.html
check_tz-how-to.html: tz-how-to.html
check_tz-link.html: tz-link.html
check_theory.html check_tz-art.html check_tz-how-to.html check_tz-link.html:
		$(CURL) -sS --url https://validator.w3.org/nu/ -F out=gnu \
		    -F file=@$$(expr $@ : 'check_\(.*\)') -o $@.out && \
		  test ! -s $@.out || { cat $@.out; exit 1; }
		mv $@.out $@

check_ziguard: rearguard.zi vanguard.zi ziguard.awk
		$(AWK) -v DATAFORM=rearguard -f ziguard.awk vanguard.zi | \
		  diff -u rearguard.zi -
		$(AWK) -v DATAFORM=vanguard -f ziguard.awk rearguard.zi | \
		  diff -u vanguard.zi -
		touch $@

# Check that zishrink.awk does not alter the data, and that ziguard.awk
# preserves main-format data.
check_zishrink: check_zishrink_posix check_zishrink_right
check_zishrink_posix check_zishrink_right: \
  zic leapseconds $(PACKRATDATA) $(PACKRATLIST) \
  $(TDATA) $(DATAFORM).zi tzdata.zi
		rm -fr $@.dir $@-t.dir $@-shrunk.dir
		mkdir $@.dir $@-t.dir $@-shrunk.dir
		case $@ in \
		  *_right) leap='-L leapseconds';; \
		  *) leap=;; \
		esac && \
		  $(ZIC) $$leap -d $@.dir $(DATAFORM).zi && \
		  $(ZIC) $$leap -d $@-shrunk.dir tzdata.zi && \
		  case $(DATAFORM),$(PACKRATLIST) in \
		    main,) \
		      $(ZIC) $$leap -d $@-t.dir $(TDATA) && \
		      $(AWK) '/^Rule/' $(TDATA) | \
			$(ZIC) $$leap -d $@-t.dir - $(PACKRATDATA) && \
		      diff -r $@.dir $@-t.dir;; \
		  esac
		diff -r $@.dir $@-shrunk.dir
		rm -fr $@.dir $@-t.dir $@-shrunk.dir
		touch $@

clean_misc:
		rm -fr check_*.dir typecheck_*.dir
		rm -f *.o *.out $(TIME_T_ALTERNATIVES) \
		  check_* core typecheck_* \
		  date tzdir.h tzselect version.h zdump zic libtz.a
clean:		clean_misc
		rm -fr *.dir tzdb-*/
		rm -f *.zi $(TZS_NEW)

maintainer-clean: clean
		@echo 'This command is intended for maintainers to use; it'
		@echo 'deletes files that may need special tools to rebuild.'
		rm -f leapseconds version $(MANTXTS) $(TZS) *.asc *.tar.*

names:
		@echo $(ENCHILADA)

public:		check check_public $(CHECK_TIME_T_ALTERNATIVES) \
		tarballs signatures

date.1.txt:	date.1
newctime.3.txt:	newctime.3
newstrftime.3.txt: newstrftime.3
newtzset.3.txt:	newtzset.3
time2posix.3.txt: time2posix.3
tzfile.5.txt:	tzfile.5
tzselect.8.txt:	tzselect.8
zdump.8.txt:	zdump.8
zic.8.txt:	zic.8

$(MANTXTS):	workman.sh
		LC_ALL=C sh workman.sh `expr $@ : '\(.*\)\.txt$$'` >$@.out
		mv $@.out $@

# Set file timestamps deterministically if possible,
# so that tarballs containing the timestamps are reproducible.
#
# '$(SET_TIMESTAMP_N) N DEST A B C ...' sets the timestamp of the
# file DEST to the maximum of the timestamps of the files A B C ...,
# plus N if GNU ls and touch are available.
SET_TIMESTAMP_N = sh -c '\
  n=$$0 dest=$$1; shift; \
  <"$$dest" && \
  if test $$n != 0 && \
     lsout=`ls -nt --time-style="+%s" "$$@" 2>/dev/null`; then \
    set x $$lsout && \
    timestamp=`expr $$7 + $$n` && \
    echo "+ touch -md @$$timestamp $$dest" && \
    touch -md @$$timestamp "$$dest"; \
  else \
    newest=`ls -t "$$@" | sed 1q` && \
    echo "+ touch -mr $$newest $$dest" && \
    touch -mr "$$newest" "$$dest"; \
  fi'
# If DEST depends on A B C ... in this Makefile, callers should use
# $(SET_TIMESTAMP_DEP) DEST A B C ..., for the benefit of any
# downstream 'make' that considers equal timestamps to be out of date.
# POSIX allows this 'make' behavior, and HP-UX 'make' does it.
# If all that matters is that the timestamp be reproducible
# and plausible, use $(SET_TIMESTAMP).
SET_TIMESTAMP = $(SET_TIMESTAMP_N) 0
SET_TIMESTAMP_DEP = $(SET_TIMESTAMP_N) 1

# Set the timestamps to those of the git repository, if available,
# and if the files have not changed since then.
# This uses GNU 'ls --time-style=+%s', which outputs the seconds count,
# and GNU 'touch -d@N FILE', where N is the number of seconds since 1970.
# If git or GNU is absent, don't bother to sync with git timestamps.
# Also, set the timestamp of each prebuilt file like 'leapseconds'
# to be the maximum of the files it depends on.
set-timestamps.out: $(EIGHT_YARDS)
		rm -f $@
		if (type git) >/dev/null 2>&1 && \
		   files=`git ls-files $(EIGHT_YARDS)` && \
		   touch -md @1 test.out; then \
		  rm -f test.out && \
		  for file in $$files; do \
		    if git diff --quiet $$file; then \
		      time=`TZ=UTC0 git log -1 \
			--format='tformat:%cd' \
			--date='format:%Y-%m-%dT%H:%M:%SZ' \
			$$file` && \
		      echo "+ touch -md $$time $$file" && \
		      touch -md $$time $$file; \
		    else \
		      echo >&2 "$$file: warning: does not match repository"; \
		    fi || exit; \
		  done; \
		fi
		$(SET_TIMESTAMP_DEP) leapseconds $(LEAP_DEPS)
		for file in `ls $(MANTXTS) | sed 's/\.txt$$//'`; do \
		  $(SET_TIMESTAMP_DEP) $$file.txt $$file workman.sh || \
		    exit; \
		done
		$(SET_TIMESTAMP_DEP) version $(VERSION_DEPS)
		$(SET_TIMESTAMP_DEP) tzdata.zi $(TZDATA_ZI_DEPS)
		touch $@
set-tzs-timestamp.out: $(TZS)
		$(SET_TIMESTAMP_DEP) $(TZS) $(TZS_DEPS)
		touch $@

# The zics below ensure that each data file can stand on its own.
# We also do an all-files run to catch links to links.

check_public: $(VERSION_DEPS)
		rm -fr public.dir
		mkdir public.dir
		ln $(VERSION_DEPS) public.dir
		cd public.dir \
		  && $(MAKE) CFLAGS='$(GCC_DEBUG_FLAGS)' TZDIR='$(TZDIR)' ALL
		for i in $(TDATA_TO_CHECK) public.dir/tzdata.zi \
		    public.dir/vanguard.zi public.dir/main.zi \
		    public.dir/rearguard.zi; \
		do \
		  public.dir/zic -v -d public.dir/zoneinfo $$i 2>&1 || exit; \
		done
		public.dir/zic -v -d public.dir/zoneinfo-all $(TDATA_TO_CHECK)
		:
		: Also check 'backzone' syntax.
		rm public.dir/main.zi
		cd public.dir && $(MAKE) PACKRATDATA=backzone main.zi
		public.dir/zic -d public.dir/zoneinfo main.zi
		rm public.dir/main.zi
		cd public.dir && \
		  $(MAKE) PACKRATDATA=backzone PACKRATLIST=zone.tab main.zi
		public.dir/zic -d public.dir/zoneinfo main.zi
		:
		rm -fr public.dir
		touch $@

# Check that the code works under various alternative
# implementations of time_t.
check_time_t_alternatives: $(TIME_T_ALTERNATIVES)
$(TIME_T_ALTERNATIVES_TAIL): $(TIME_T_ALTERNATIVES_HEAD)
$(TIME_T_ALTERNATIVES): $(VERSION_DEPS)
		rm -fr $@.dir
		mkdir $@.dir
		ln $(VERSION_DEPS) $@.dir
		case $@ in \
		  int*32_t) range=-2147483648,2147483648;; \
		  u*) range=0,4294967296;; \
		  *) range=-4294967296,4294967296;; \
		esac && \
		wd=`pwd` && \
		zones=`$(AWK) '/^[^#]/ { print $$3 }' <zone1970.tab` && \
		if test $@ = $(TIME_T_ALTERNATIVES_HEAD); then \
		  range_target=; \
		else \
		  range_target=to$$range.tzs; \
		fi && \
		(cd $@.dir && \
		  $(MAKE) TOPDIR="$$wd/$@.dir" \
		    CFLAGS='$(CFLAGS) -Dtime_tz='"'$@'" \
		    REDO='$(REDO)' \
			D=$$wd/$@.dir \
		    TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \
		    install $$range_target) && \
		test $@ = $(TIME_T_ALTERNATIVES_HEAD) || { \
		  (cd $(TIME_T_ALTERNATIVES_HEAD).dir && \
		    $(MAKE) TOPDIR="$$wd/$@.dir" \
		      TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \
			D=$$wd/$@.dir \
		      to$$range.tzs) && \
		  $(DIFF_TZS) $(TIME_T_ALTERNATIVES_HEAD).dir/to$$range.tzs \
			  $@.dir/to$$range.tzs && \
		  if diff -q Makefile Makefile 2>/dev/null; then \
		    quiet_option='-q'; \
		  else \
		    quiet_option=''; \
		  fi && \
		    diff $$quiet_option -r $(TIME_T_ALTERNATIVES_HEAD).dir/etc \
					   $@.dir/etc && \
		    diff $$quiet_option -r \
		      $(TIME_T_ALTERNATIVES_HEAD).dir/usr/share \
		      $@.dir/usr/share; \
		}
		touch $@

TRADITIONAL_ASC = \
  tzcode$(VERSION).tar.gz.asc \
  tzdata$(VERSION).tar.gz.asc
REARGUARD_ASC = \
  tzdata$(VERSION)-rearguard.tar.gz.asc
ALL_ASC = $(TRADITIONAL_ASC) $(REARGUARD_ASC) \
  tzdb-$(VERSION).tar.lz.asc

tarballs rearguard_tarballs tailored_tarballs traditional_tarballs \
signatures rearguard_signatures traditional_signatures: \
  version set-timestamps.out rearguard.zi vanguard.zi
		VERSION=`cat version` && \
		$(MAKE) AWK='$(AWK)' VERSION="$$VERSION" $@_version

# These *_version rules are intended for use if VERSION is set by some
# other means.  Ordinarily these rules are used only by the above
# non-_version rules, which set VERSION on the 'make' command line.
tarballs_version: traditional_tarballs_version rearguard_tarballs_version \
  tzdb-$(VERSION).tar.lz
rearguard_tarballs_version: \
  tzdata$(VERSION)-rearguard.tar.gz
traditional_tarballs_version: \
  tzcode$(VERSION).tar.gz tzdata$(VERSION).tar.gz
tailored_tarballs_version: \
  tzdata$(VERSION)-tailored.tar.gz
signatures_version: $(ALL_ASC)
rearguard_signatures_version: $(REARGUARD_ASC)
traditional_signatures_version: $(TRADITIONAL_ASC)

tzcode$(VERSION).tar.gz: set-timestamps.out
		LC_ALL=C && export LC_ALL && \
		tar $(TARFLAGS) -cf - \
		    $(COMMON) $(DOCS) $(SOURCES) | \
		  gzip $(GZIPFLAGS) >$@.out
		mv $@.out $@

tzdata$(VERSION).tar.gz: set-timestamps.out
		LC_ALL=C && export LC_ALL && \
		tar $(TARFLAGS) -cf - $(TZDATA_DIST) | \
		  gzip $(GZIPFLAGS) >$@.out
		mv $@.out $@

# Create empty files with a reproducible timestamp.
CREATE_EMPTY = TZ=UTC0 touch -mt 202010122253.00

# The obsolescent *rearguard* targets and related macros are present
# for backwards compatibility with tz releases 2018e through 2022a.
# They should go away eventually.  To build rearguard tarballs you
# can instead use 'make DATAFORM=rearguard tailored_tarballs'.
tzdata$(VERSION)-rearguard.tar.gz: rearguard.zi set-timestamps.out
		rm -fr $@.dir
		mkdir $@.dir
		ln $(TZDATA_DIST) $@.dir
		cd $@.dir && rm -f $(TDATA) $(PACKRATDATA) version
		for f in $(TDATA) $(PACKRATDATA); do \
		  rearf=$@.dir/$$f; \
		  $(AWK) -v DATAFORM=rearguard -f ziguard.awk $$f >$$rearf && \
		  $(SET_TIMESTAMP_DEP) $$rearf ziguard.awk $$f || exit; \
		done
		sed '1s/$$/-rearguard/' <version >$@.dir/version
		: The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier.
		$(CREATE_EMPTY) $@.dir/pacificnew
		touch -mr version $@.dir/version
		LC_ALL=C && export LC_ALL && \
		  (cd $@.dir && \
		   tar $(TARFLAGS) -cf - \
			$(TZDATA_DIST) pacificnew | \
		     gzip $(GZIPFLAGS)) >$@.out
		mv $@.out $@

# Create a tailored tarball suitable for TZUpdater and compatible tools.
# For example, 'make DATAFORM=vanguard tailored_tarballs' makes a tarball
# useful for testing whether TZUpdater supports vanguard form.
# The generated tarball is not byte-for-byte equivalent to a hand-tailored
# traditional tarball, as data entries are put into 'etcetera' even if they
# came from some other source file.  However, the effect should be the same
# for ordinary use, which reads all the source files.
tzdata$(VERSION)-tailored.tar.gz: set-timestamps.out
		rm -fr $@.dir
		mkdir $@.dir
		: The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier.
		cd $@.dir && \
		  $(CREATE_EMPTY) $(PRIMARY_YDATA) $(NDATA) backward \
		  `test $(DATAFORM) = vanguard || echo pacificnew`
		(grep '^#' tzdata.zi && echo && cat $(DATAFORM).zi) \
		  >$@.dir/etcetera
		touch -mr tzdata.zi $@.dir/etcetera
		sed -n \
		  -e '/^# *version  *\(.*\)/h' \
		  -e '/^# *ddeps  */H' \
		  -e '$$!d' \
		  -e 'g' \
		  -e 's/^# *version  *//' \
		  -e 's/\n# *ddeps  */-/' \
		  -e 's/ /-/g' \
		  -e 'p' \
		  <tzdata.zi >$@.dir/version
		touch -mr version $@.dir/version
		links= && \
		  for file in $(TZDATA_DIST); do \
		    test -f $@.dir/$$file || links="$$links $$file"; \
		  done && \
		  ln $$links $@.dir
		LC_ALL=C && export LC_ALL && \
		  (cd $@.dir && \
		   tar $(TARFLAGS) -cf - * | gzip $(GZIPFLAGS)) >$@.out
		mv $@.out $@

tzdb-$(VERSION).tar.lz: set-timestamps.out set-tzs-timestamp.out
		rm -fr tzdb-$(VERSION)
		mkdir tzdb-$(VERSION)
		ln $(ENCHILADA) tzdb-$(VERSION)
		$(SET_TIMESTAMP) tzdb-$(VERSION) tzdb-$(VERSION)/*
		LC_ALL=C && export LC_ALL && \
		tar $(TARFLAGS) -cf - tzdb-$(VERSION) | lzip -9 >$@.out
		mv $@.out $@

tzcode$(VERSION).tar.gz.asc: tzcode$(VERSION).tar.gz
tzdata$(VERSION).tar.gz.asc: tzdata$(VERSION).tar.gz
tzdata$(VERSION)-rearguard.tar.gz.asc: tzdata$(VERSION)-rearguard.tar.gz
tzdb-$(VERSION).tar.lz.asc: tzdb-$(VERSION).tar.lz
$(ALL_ASC):
		$(GPG) --armor --detach-sign $?

TYPECHECK_CFLAGS = $(CFLAGS) -DTYPECHECK -D__time_t_defined -D_TIME_T
typecheck: typecheck_long_long typecheck_unsigned
typecheck_long_long typecheck_unsigned: $(VERSION_DEPS)
		rm -fr $@.dir
		mkdir $@.dir
		ln $(VERSION_DEPS) $@.dir
		cd $@.dir && \
		  case $@ in \
		    *_long_long) i="long long";; \
		    *_unsigned ) i="unsigned" ;; \
		  esac && \
		  typecheck_cflags='' && \
		  $(MAKE) \
		    CFLAGS="$(TYPECHECK_CFLAGS) \"-Dtime_t=$$i\"" \
		    TOPDIR="`pwd`" \
		    install
		$@.dir/zdump -i -c 1970,1971 Europe/Rome
		touch $@

zonenames:	tzdata.zi
		@$(AWK) '/^Z/ { print $$2 } /^L/ { print $$3 }' tzdata.zi

asctime.o:	private.h tzfile.h
date.o:		private.h
difftime.o:	private.h
localtime.o:	private.h tzfile.h tzdir.h
strftime.o:	private.h tzfile.h
zdump.o:	version.h
zic.o:		private.h tzfile.h tzdir.h version.h

.PHONY: ALL INSTALL all
.PHONY: check check_mild check_time_t_alternatives
.PHONY: check_web check_zishrink
.PHONY: clean clean_misc commit-leap-seconds.list dummy.zd
.PHONY: fetch-leap-seconds.list force_tzs
.PHONY: install install_data maintainer-clean names
.PHONY: posix_only posix_right public
.PHONY: rearguard_signatures rearguard_signatures_version
.PHONY: rearguard_tarballs rearguard_tarballs_version
.PHONY: right_only right_posix signatures signatures_version
.PHONY: tarballs tarballs_version
.PHONY: traditional_signatures traditional_signatures_version
.PHONY: traditional_tarballs traditional_tarballs_version
.PHONY: tailored_tarballs tailored_tarballs_version
.PHONY: typecheck
.PHONY: zonenames zones
.PHONY: $(ZDS)