1 # Make and install tzdb code and data.
3 # This file is in the public domain, so clarified as of
4 # 2009-05-17 by Arthur David Olson.
6 # Package name for the code distribution.
9 # Version number for the distribution, overridden in the 'tarballs' rule below.
12 # Email address for bug reports.
15 # DATAFORM selects the data format.
16 # Available formats represent essentially the same data, albeit
17 # possibly with minor discrepancies that users are not likely to notice.
18 # To get new features and the best data right away, use:
20 # To wait a while before using new features, to give downstream users
21 # time to upgrade zic (the default), use:
23 # To wait even longer for new features, use:
25 # Rearguard users might also want "ZFLAGS = -b fat"; see below.
28 # Change the line below for your timezone (after finding the one you want in
29 # one of the $(TDATA) source files, or adding it to a source file).
30 # Alternatively, if you discover you've got the wrong timezone, you can just
31 # 'zic -l -' to remove it, or 'zic -l rightzone' to change it.
34 # to get a list of the values you can use for LOCALTIME.
38 # The POSIXRULES macro controls interpretation of POSIX-like TZ
39 # settings like TZ='EET-2EEST' that lack DST transition rules.
40 # If POSIXRULES is '-', no template is installed; this is the default.
41 # Any other value for POSIXRULES is obsolete and should not be relied on, as:
42 # * It does not work correctly in popular implementations such as GNU/Linux.
43 # * It does not work even in tzcode, except for historical timestamps
44 # that precede the last explicit transition in the POSIXRULES file.
45 # Hence it typically does not work for current and future timestamps.
46 # If, despite the above, you want a template for handling these settings,
47 # you can change the line below (after finding the timezone you want in the
48 # one of the $(TDATA) source files, or adding it to a source file).
49 # Alternatively, if you discover you've got the wrong timezone, you can just
50 # 'zic -p -' to remove it, or 'zic -p rightzone' to change it.
53 # to get a list of the values you can use for POSIXRULES.
57 # Also see TZDEFRULESTRING below, which takes effect only
58 # if POSIXRULES is '-' or if the template file cannot be accessed.
61 # Installation locations.
63 # The defaults are suitable for Debian, except that if REDO is
64 # posix_right or right_posix then files that Debian puts under
65 # /usr/share/zoneinfo/posix and /usr/share/zoneinfo/right are instead
66 # put under /usr/share/zoneinfo-posix and /usr/share/zoneinfo-leaps,
67 # respectively. Problems with the Debian approach are discussed in
68 # the commentary for the right_posix rule (below).
70 # Destination directory, which can be used for staging.
71 # 'make DESTDIR=/stage install' installs under /stage (e.g., to
72 # /stage/etc/localtime instead of to /etc/localtime). Files under
73 # /stage are not intended to work as-is, but can be copied by hand to
74 # the root directory later. If DESTDIR is empty, 'make install' does
75 # not stage, but installs directly into production locations.
78 # Everything is installed into subdirectories of TOPDIR, and used there.
79 # TOPDIR should be empty (meaning the root directory),
80 # or a directory name that does not end in "/".
81 # TOPDIR should be empty or an absolute name unless you're just testing.
84 # The default local timezone is taken from the file TZDEFAULT.
85 TZDEFAULT = $(TOPDIR)/etc/localtime
87 # The subdirectory containing installed program and data files, and
88 # likewise for installed files that can be shared among architectures.
89 # These should be relative file names.
91 USRSHAREDIR = $(USRDIR)/share
93 # "Compiled" timezone information is placed in the "TZDIR" directory
94 # (and subdirectories).
95 # TZDIR_BASENAME should not contain "/" and should not be ".", ".." or empty.
96 TZDIR_BASENAME= zoneinfo
97 TZDIR = $(TOPDIR)/$(USRSHAREDIR)/$(TZDIR_BASENAME)
99 # The "tzselect" and (if you do "make INSTALL") "date" commands go in:
100 BINDIR = $(TOPDIR)/$(USRDIR)/bin
102 # The "zdump" command goes in:
105 # The "zic" command goes in:
106 ZICDIR = $(TOPDIR)/$(USRDIR)/sbin
108 # Manual pages go in subdirectories of. . .
109 MANDIR = $(TOPDIR)/$(USRSHAREDIR)/man
111 # Library functions are put in an archive in LIBDIR.
112 LIBDIR = $(TOPDIR)/$(USRDIR)/lib
115 # Types to try, as an alternative to time_t.
116 TIME_T_ALTERNATIVES = $(TIME_T_ALTERNATIVES_HEAD) $(TIME_T_ALTERNATIVES_TAIL)
117 TIME_T_ALTERNATIVES_HEAD = int_least64_t
118 TIME_T_ALTERNATIVES_TAIL = int_least32_t uint_least32_t uint_least64_t
120 # What kind of TZif data files to generate. (TZif is the binary time
121 # zone data format that zic generates; see Internet RFC 8536.)
122 # If you want only POSIX time, with time values interpreted as
123 # seconds since the epoch (not counting leap seconds), use
125 # below. If you want only "right" time, with values interpreted
126 # as seconds since the epoch (counting leap seconds), use
128 # below. If you want both sets of data available, with leap seconds not
129 # counted normally, use
131 # below. If you want both sets of data available, with leap seconds counted
134 # below. POSIX mandates that leap seconds not be counted; for compatibility
135 # with it, use "posix_only" or "posix_right". Use POSIX time on systems with
136 # leap smearing; this can work better than unsmeared "right" time with
137 # applications that are not leap second aware, and is closer to unsmeared
138 # "right" time than unsmeared POSIX time is (e.g., 0.5 vs 1.0 s max error).
142 # Whether to put an "Expires" line in the leapseconds file.
143 # Use EXPIRES_LINE=1 to put the line in, 0 to omit it.
144 # The EXPIRES_LINE value matters only if REDO's value contains "right".
145 # If you change EXPIRES_LINE, remove the leapseconds file before running "make".
146 # zic's support for the Expires line was introduced in tzdb 2020a,
147 # and was modified in tzdb 2021b to generate version 4 TZif files.
148 # EXPIRES_LINE defaults to 0 for now so that the leapseconds file
149 # can be given to pre-2020a zic implementations and so that TZif files
150 # built by newer zic implementations can be read by pre-2021b libraries.
153 # To install data in text form that has all the information of the TZif data,
154 # (optionally incorporating leap second information), use
155 # TZDATA_TEXT= tzdata.zi leapseconds
156 # To install text data without leap second information (e.g., because
157 # REDO='posix_only'), use
158 # TZDATA_TEXT= tzdata.zi
159 # To avoid installing text data, use
162 TZDATA_TEXT= leapseconds tzdata.zi
164 # For backward-compatibility links for old zone names, use
166 # To omit these links, use
171 # If you want out-of-scope and often-wrong data from the file 'backzone',
172 # but only for entries listed in the backward-compatibility file zone.tab, use
173 # PACKRATDATA= backzone
174 # PACKRATLIST= zone.tab
175 # If you want all the 'backzone' data, use
176 # PACKRATDATA= backzone
178 # To omit this data, use
185 # The name of a locale using the UTF-8 encoding, used during self-tests.
186 # The tests are skipped if the name does not appear to work on this system.
188 UTF8_LOCALE= en_US.utf8
190 # Non-default libraries needed to link.
191 # On some hosts, this should have -lintl unless CFLAGS has -DHAVE_GETTEXT=0.
194 # Add the following to the end of the "CFLAGS=" line as needed to override
195 # defaults specified in the source code. "-DFOO" is equivalent to "-DFOO=1".
196 # -DDEPRECATE_TWO_DIGIT_YEARS for optional runtime warnings about strftime
197 # formats that generate only the last two digits of year numbers
198 # -DEPOCH_LOCAL if the 'time' function returns local time not UT
199 # -DEPOCH_OFFSET=N if the 'time' function returns a value N greater
200 # than what POSIX specifies, assuming local time is UT.
201 # For example, N is 252460800 on AmigaOS.
202 # -DHAVE_DECL_ASCTIME_R=0 if <time.h> does not declare asctime_r
203 # -DHAVE_DECL_ENVIRON if <unistd.h> declares 'environ'
204 # -DHAVE_DECL_TIMEGM=0 if <time.h> does not declare timegm
205 # -DHAVE_DIRECT_H if mkdir needs <direct.h> (MS-Windows)
206 # -DHAVE__GENERIC=0 if _Generic does not work*
207 # -DHAVE_GETRANDOM if getrandom works (e.g., GNU/Linux),
208 # -DHAVE_GETRANDOM=0 to avoid using getrandom
209 # -DHAVE_GETTEXT if gettext works (e.g., GNU/Linux, FreeBSD, Solaris),
210 # where LDLIBS also needs to contain -lintl on some hosts;
211 # -DHAVE_GETTEXT=0 to avoid using gettext
212 # -DHAVE_INCOMPATIBLE_CTIME_R if your system's time.h declares
213 # ctime_r and asctime_r incompatibly with the POSIX standard
214 # (Solaris when _POSIX_PTHREAD_SEMANTICS is not defined).
215 # -DHAVE_INTTYPES_H=0 if <inttypes.h> does not work*+
216 # -DHAVE_LINK=0 if your system lacks a link function
217 # -DHAVE_LOCALTIME_R=0 if your system lacks a localtime_r function
218 # -DHAVE_LOCALTIME_RZ=0 if you do not want zdump to use localtime_rz
219 # localtime_rz can make zdump significantly faster, but is nonstandard.
220 # -DHAVE_MALLOC_ERRNO=0 if malloc etc. do not set errno on failure.
221 # -DHAVE_POSIX_DECLS=0 if your system's include files do not declare
222 # functions like 'link' or variables like 'tzname' required by POSIX
223 # -DHAVE_SETENV=0 if your system lacks the setenv function
224 # -DHAVE_SNPRINTF=0 if your system lacks the snprintf function+
225 # -DHAVE_STDCKDINT_H=0 if neither <stdckdint.h> nor substitutes like
226 # __builtin_add_overflow work*
227 # -DHAVE_STDINT_H=0 if <stdint.h> does not work*+
228 # -DHAVE_STRFTIME_L if <time.h> declares locale_t and strftime_l
229 # -DHAVE_STRDUP=0 if your system lacks the strdup function
230 # -DHAVE_STRTOLL=0 if your system lacks the strtoll function+
231 # -DHAVE_SYMLINK=0 if your system lacks the symlink function
232 # -DHAVE_SYS_STAT_H=0 if <sys/stat.h> does not work*
233 # -DHAVE_TZSET=0 if your system lacks a tzset function
234 # -DHAVE_UNISTD_H=0 if <unistd.h> does not work*
235 # -DHAVE_UTMPX_H=0 if <utmpx.h> does not work*
236 # -Dlocale_t=XXX if your system uses XXX instead of locale_t
237 # -DPORT_TO_C89 if tzcode should also run on C89 platforms+
238 # -DRESERVE_STD_EXT_IDS if your platform reserves standard identifiers
239 # with external linkage, e.g., applications cannot define 'localtime'.
240 # -Dssize_t=long on hosts like MS-Windows that lack ssize_t
241 # -DSUPPORT_C89 if the tzcode library should support C89 callers+
242 # -DSUPPRESS_TZDIR to not prepend TZDIR to file names; this has
243 # security implications and is not recommended for general use
244 # -DTHREAD_SAFE to make localtime.c thread-safe, as POSIX requires;
245 # not needed by the main-program tz code, which is single-threaded.
246 # Append other compiler flags as needed, e.g., -pthread on GNU/Linux.
247 # -Dtime_tz=\"T\" to use T as the time_t type, rather than the system time_t
248 # This is intended for internal use only; it mangles external names.
249 # -DTZ_DOMAIN=\"foo\" to use "foo" for gettext domain name; default is "tz"
250 # -DTZ_DOMAINDIR=\"/path\" to use "/path" for gettext directory;
251 # the default is system-supplied, typically "/usr/lib/locale"
252 # -DTZDEFRULESTRING=\",date/time,date/time\" to default to the specified
253 # DST transitions for POSIX-style TZ strings lacking them,
254 # in the usual case where POSIXRULES is '-'. If not specified,
255 # TZDEFRULESTRING defaults to US rules for future DST transitions.
256 # This mishandles some past timestamps, as US DST rules have changed.
257 # It also mishandles settings like TZ='EET-2EEST' for eastern Europe,
258 # as Europe and US DST rules differ.
259 # -DTZNAME_MAXIMUM=N to limit time zone abbreviations to N bytes (default 255)
260 # -DUNINIT_TRAP if reading uninitialized storage can cause problems
261 # other than simply getting garbage data
262 # -DUSE_LTZ=0 to build zdump with the system time zone library
263 # Also set TZDOBJS=zdump.o and CHECK_TIME_T_ALTERNATIVES= below.
264 # -DZIC_BLOAT_DEFAULT=\"fat\" to default zic's -b option to "fat", and
265 # similarly for "slim". Fat TZif files work around incompatibilities
266 # and bugs in some TZif readers, notably older ones that
267 # ignore or otherwise mishandle 64-bit data in TZif files;
268 # however, fat TZif files may trigger bugs in newer TZif readers.
269 # Slim TZif files are more efficient, and are the default.
270 # -DZIC_MAX_ABBR_LEN_WO_WARN=3
271 # (or some other number) to set the maximum time zone abbreviation length
272 # that zic will accept without a warning (the default is 6)
273 # $(GCC_DEBUG_FLAGS) if you are using recent GCC and want lots of checking
275 # * Options marked "*" can be omitted if your compiler is C23 compatible.
276 # * Options marked "+" are obsolescent and are planned to be removed
277 # once the code assumes C99 or later.
279 # Select instrumentation via "make GCC_INSTRUMENT='whatever'".
281 -fsanitize=undefined -fsanitize-address-use-after-scope \
282 -fsanitize-undefined-trap-on-error -fstack-protector
283 # Omit -fanalyzer from GCC_DEBUG_FLAGS, as it makes GCC too slow.
284 GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 -fno-common \
287 -Walloc-size-larger-than=100000 -Warray-bounds=2 \
288 -Wbad-function-cast -Wbidi-chars=any,ucn -Wcast-align=strict -Wdate-time \
289 -Wdeclaration-after-statement -Wdouble-promotion \
290 -Wduplicated-branches -Wduplicated-cond \
291 -Wformat=2 -Wformat-overflow=2 -Wformat-signedness -Wformat-truncation \
292 -Wimplicit-fallthrough=5 -Winit-self -Wlogical-op \
293 -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
295 -Wold-style-definition -Woverlength-strings -Wpointer-arith \
296 -Wshadow -Wshift-overflow=2 -Wstrict-overflow \
297 -Wstrict-prototypes -Wstringop-overflow=4 \
298 -Wstringop-truncation -Wsuggest-attribute=cold \
299 -Wsuggest-attribute=const -Wsuggest-attribute=format \
300 -Wsuggest-attribute=malloc \
301 -Wsuggest-attribute=noreturn -Wsuggest-attribute=pure \
302 -Wtrampolines -Wundef -Wuninitialized -Wunused-macros -Wuse-after-free=3 \
303 -Wvariadic-macros -Wvla -Wwrite-strings \
304 -Wno-address -Wno-format-nonliteral -Wno-sign-compare \
307 # If your system has a "GMT offset" field in its "struct tm"s
308 # (or if you decide to add such a field in your system's "time.h" file),
309 # add the name to a define such as
310 # -DTM_GMTOFF=tm_gmtoff
311 # to the end of the "CFLAGS=" line. If not defined, the code attempts to
312 # guess TM_GMTOFF from other macros; define NO_TM_GMTOFF to suppress this.
313 # Similarly, if your system has a "zone abbreviation" field, define
315 # and define NO_TM_ZONE to suppress any guessing. Although these two fields
316 # not required by POSIX, a future version of POSIX is planned to require them
317 # and they are widely available on GNU/Linux and BSD systems.
319 # The next batch of options control support for external variables
320 # exported by tzcode. In practice these variables are less useful
321 # than TM_GMTOFF and TM_ZONE. However, most of them are standardized.
323 # # To omit or support the external variable "tzname", add one of:
324 # # -DHAVE_TZNAME=0 # do not support "tzname"
325 # # -DHAVE_TZNAME=1 # support "tzname", which is defined by system library
326 # # -DHAVE_TZNAME=2 # support and define "tzname"
327 # # to the "CFLAGS=" line. "tzname" is required by POSIX 1988 and later.
328 # # If not defined, the code attempts to guess HAVE_TZNAME from other macros.
329 # # Warning: unless time_tz is also defined, HAVE_TZNAME=1 can cause
330 # # crashes when combined with some platforms' standard libraries,
331 # # presumably due to memory allocation issues.
333 # # To omit or support the external variables "timezone" and "daylight", add
334 # # -DUSG_COMPAT=0 # do not support
335 # # -DUSG_COMPAT=1 # support, and variables are defined by system library
336 # # -DUSG_COMPAT=2 # support and define variables
337 # # to the "CFLAGS=" line; "timezone" and "daylight" are inspired by
338 # # Unix Systems Group code and are required by POSIX 2008 (with XSI) and later.
339 # # If not defined, the code attempts to guess USG_COMPAT from other macros.
341 # # To support the external variable "altzone", add
342 # # -DALTZONE=0 # do not support
343 # # -DALTZONE=1 # support "altzone", which is defined by system library
344 # # -DALTZONE=2 # support and define "altzone"
345 # # to the end of the "CFLAGS=" line; although "altzone" appeared in
346 # # System V Release 3.1 it has not been standardized.
347 # # If not defined, the code attempts to guess ALTZONE from other macros.
349 # If you want functions that were inspired by early versions of X3J11's work,
352 # to the end of the "CFLAGS=" line. This arranges for the following
353 # functions to be added to the time conversion library.
354 # "offtime" is like "gmtime" except that it accepts a second (long) argument
355 # that gives an offset to add to the time_t when converting it.
356 # "timelocal" is equivalent to "mktime".
357 # "timeoff" is like "timegm" except that it accepts a second (long) argument
358 # that gives an offset to use when converting to a time_t.
359 # "posix2time" and "time2posix" are described in an included manual page.
360 # X3J11's work does not describe any of these functions.
361 # These functions may well disappear in future releases of the time
362 # conversion package.
364 # If you don't want functions that were inspired by NetBSD, add
365 # -DNETBSD_INSPIRED=0
366 # to the end of the "CFLAGS=" line. Otherwise, the functions
367 # "localtime_rz", "mktime_z", "tzalloc", and "tzfree" are added to the
368 # time library, and if STD_INSPIRED is also defined to nonzero the functions
369 # "posix2time_z" and "time2posix_z" are added as well.
370 # The functions ending in "_z" (or "_rz") are like their unsuffixed
371 # (or suffixed-by-"_r") counterparts, except with an extra first
372 # argument of opaque type timezone_t that specifies the timezone.
373 # "tzalloc" allocates a timezone_t value, and "tzfree" frees it.
375 # If you want to allocate state structures in localtime, add
377 # to the end of the "CFLAGS=" line. Storage is obtained by calling malloc.
379 # NIST-PCTS:151-2, Version 1.4, (1993-12-03) is a test suite put
380 # out by the National Institute of Standards and Technology
381 # which claims to test C and Posix conformance. If you want to pass PCTS, add
383 # to the end of the "CFLAGS=" line.
385 # If you want strict compliance with XPG4 as of 1994-04-09, add
387 # to the end of the "CFLAGS=" line. This causes "strftime" to always return
388 # 53 as a week number (rather than 52 or 53) for January days before
389 # January's first Monday when a "%V" format is used and January 1
390 # falls on a Friday, Saturday, or Sunday.
394 # Linker flags. Default to $(LFLAGS) for backwards compatibility
395 # to release 2012h and earlier.
399 # For leap seconds, this Makefile uses LEAPSECONDS='-L leapseconds' in
400 # submake command lines. The default is no leap seconds.
404 # The zic command and its arguments.
407 ZIC= $(zic) $(ZFLAGS)
409 # To shrink the size of installed TZif files,
410 # append "-r @N" to omit data before N-seconds-after-the-Epoch.
411 # To grow the files and work around bugs in older applications,
412 # possibly at the expense of introducing bugs in newer ones,
413 # append "-b fat"; see ZIC_BLOAT_DEFAULT above.
414 # See the zic man page for more about -b and -r.
417 # How to use zic to install TZif files.
419 ZIC_INSTALL= $(ZIC) -d '$(DESTDIR)$(TZDIR)' $(LEAPSECONDS)
421 # The name of a Posix-compliant 'awk' on your system.
422 # mawk 1.3.3 and Solaris 10 /usr/bin/awk do not work.
423 # Also, it is better (though not essential) if 'awk' supports UTF-8,
424 # and unfortunately mawk and busybox awk do not support UTF-8.
425 # Try AWK=gawk or AWK=nawk if your awk has the abovementioned problems.
428 # The full path name of a Posix-compliant shell, preferably one that supports
429 # the Korn shell's 'select' statement as an extension.
430 # These days, Bash is the most popular.
431 # It should be OK to set this to /bin/sh, on platforms where /bin/sh
432 # lacks 'select' or doesn't completely conform to Posix, but /bin/bash
433 # is typically nicer if it works.
436 # Name of curl <https://curl.haxx.se/>, used for HTML validation.
439 # Name of GNU Privacy Guard <https://gnupg.org/>, used to sign distributions.
442 # This expensive test requires USE_LTZ.
443 # To suppress it, define this macro to be empty.
444 CHECK_TIME_T_ALTERNATIVES = check_time_t_alternatives
446 # SAFE_CHAR is a regular expression that matches a safe character.
447 # Some parts of this distribution are limited to safe characters;
448 # others can use any UTF-8 character.
449 # For now, the safe characters are a safe subset of ASCII.
450 # The caller must set the shell variable 'sharp' to the character '#',
451 # since Makefile macros cannot contain '#'.
452 # TAB_CHAR is a single tab character, in single quotes.
454 SAFE_CHARSET1= $(TAB_CHAR)' !\"'$$sharp'$$%&'\''()*+,./0123456789:;<=>?@'
455 SAFE_CHARSET2= 'ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\^_`'
456 SAFE_CHARSET3= 'abcdefghijklmnopqrstuvwxyz{|}~'
457 SAFE_CHARSET= $(SAFE_CHARSET1)$(SAFE_CHARSET2)$(SAFE_CHARSET3)
458 SAFE_CHAR= '[]'$(SAFE_CHARSET)'-]'
460 # These non-alphabetic, non-ASCII printable characters are Latin-1,
461 # and so are likely displayable even in editors like XEmacs 21
462 # that have limited display capabilities.
463 UNUSUAL_OK_LATIN_1 = ¡¢£¤¥¦§¨©«¬®¯°±²³´¶·¸¹»¼½¾¿×÷
464 # Non-ASCII non-letters that OK_CHAR allows, as these characters are
465 # useful in commentary.
466 UNUSUAL_OK_CHARSET= $(UNUSUAL_OK_LATIN_1)
468 # Put this in a bracket expression to match spaces.
471 # OK_CHAR matches any character allowed in the distributed files.
472 # This is the same as SAFE_CHAR, except that UNUSUAL_OK_CHARSET and
473 # multibyte letters are also allowed so that commentary can contain a
474 # few safe symbols and people's names and can quote non-English sources.
475 # Other non-letters are limited to ASCII renderings for the
476 # convenience of maintainers using XEmacs 21.5.34, which by default
477 # mishandles Unicode characters U+0100 and greater.
478 OK_CHAR= '[][:alpha:]$(UNUSUAL_OK_CHARSET)'$(SAFE_CHARSET)'-]'
480 # SAFE_LINE matches a line of safe characters.
481 # SAFE_SHARP_LINE is similar, except any OK character can follow '#';
482 # this is so that comments can contain non-ASCII characters.
483 # OK_LINE matches a line of OK characters.
484 SAFE_LINE= '^'$(SAFE_CHAR)'*$$'
485 SAFE_SHARP_LINE='^'$(SAFE_CHAR)'*('$$sharp$(OK_CHAR)'*)?$$'
486 OK_LINE= '^'$(OK_CHAR)'*$$'
488 # Flags to give 'tar' when making a distribution.
489 # Try to use flags appropriate for GNU tar.
490 GNUTARFLAGS= --format=pax --pax-option='delete=atime,delete=ctime' \
491 --numeric-owner --owner=0 --group=0 \
492 --mode=go+u,go-w --sort=name
493 TARFLAGS= `if tar $(GNUTARFLAGS) --version >/dev/null 2>&1; \
494 then echo $(GNUTARFLAGS); \
498 # Flags to give 'gzip' when making a distribution.
501 # When comparing .tzs files, use GNU diff's -F'^TZ=' option if supported.
502 # This makes it easier to see which Zone has been affected.
503 DIFF_TZS= diff -u$$(! diff -u -F'^TZ=' - - <>/dev/null >&0 2>&1 \
506 ###############################################################################
511 CC= $(cc) -DTZDIR='"$(TZDIR)"'
515 # ':' on typical hosts; 'ranlib' on the ancient hosts that still need ranlib.
519 TZDOBJS= zdump.o localtime.o asctime.o strftime.o
520 DATEOBJS= date.o localtime.o strftime.o asctime.o
521 LIBSRCS= localtime.c asctime.c difftime.c strftime.c
522 LIBOBJS= localtime.o asctime.o difftime.o strftime.o
523 HEADERS= tzfile.h private.h
524 NONLIBSRCS= zic.c zdump.c
526 SOURCES= $(HEADERS) $(LIBSRCS) $(NONLIBSRCS) $(NEWUCBSRCS) \
527 tzselect.ksh workman.sh
528 MANS= newctime.3 newstrftime.3 newtzset.3 time2posix.3 \
529 tzfile.5 tzselect.8 zic.8 zdump.8
530 MANTXTS= newctime.3.txt newstrftime.3.txt newtzset.3.txt \
532 tzfile.5.txt tzselect.8.txt zic.8.txt zdump.8.txt \
534 COMMON= calendars CONTRIBUTING LICENSE Makefile \
535 NEWS README SECURITY theory.html version
536 WEB_PAGES= tz-art.html tz-how-to.html tz-link.html
537 CHECK_WEB_PAGES=check_theory.html check_tz-art.html \
538 check_tz-how-to.html check_tz-link.html
539 DOCS= $(MANS) date.1 $(MANTXTS) $(WEB_PAGES)
540 PRIMARY_YDATA= africa antarctica asia australasia \
541 europe northamerica southamerica
542 YDATA= $(PRIMARY_YDATA) etcetera
544 TDATA_TO_CHECK= $(YDATA) $(NDATA) backward
545 TDATA= $(YDATA) $(NDATA) $(BACKWARD)
546 ZONETABLES= zone1970.tab zone.tab
547 TABDATA= iso3166.tab $(TZDATA_TEXT) $(ZONETABLES)
548 LEAP_DEPS= leapseconds.awk leap-seconds.list
549 TZDATA_ZI_DEPS= ziguard.awk zishrink.awk version $(TDATA) \
550 $(PACKRATDATA) $(PACKRATLIST)
551 DSTDATA_ZI_DEPS= ziguard.awk $(TDATA) $(PACKRATDATA) $(PACKRATLIST)
552 DATA= $(TDATA_TO_CHECK) backzone iso3166.tab leap-seconds.list \
553 leapseconds $(ZONETABLES)
554 AWK_SCRIPTS= checklinks.awk checktab.awk leapseconds.awk \
555 ziguard.awk zishrink.awk
558 TZS_CUTOFF_FLAG= -c $(TZS_YEAR)
559 TZS= to$(TZS_YEAR).tzs
560 TZS_NEW= to$(TZS_YEAR)new.tzs
561 TZS_DEPS= $(YDATA) asctime.c localtime.c \
562 private.h tzfile.h zdump.c zic.c
563 TZDATA_DIST = $(COMMON) $(DATA) $(MISC)
564 # EIGHT_YARDS is just a yard short of the whole ENCHILADA.
565 EIGHT_YARDS = $(TZDATA_DIST) $(DOCS) $(SOURCES) tzdata.zi
566 ENCHILADA = $(EIGHT_YARDS) $(TZS)
568 # Consult these files when deciding whether to rebuild the 'version' file.
569 # This list is not the same as the output of 'git ls-files', since
570 # .gitignore is not distributed.
572 calendars CONTRIBUTING LICENSE Makefile NEWS README SECURITY \
573 africa antarctica asctime.c asia australasia \
575 checklinks.awk checktab.awk \
576 date.1 date.c difftime.c \
577 etcetera europe factory iso3166.tab \
578 leap-seconds.list leapseconds.awk localtime.c \
579 newctime.3 newstrftime.3 newtzset.3 northamerica \
580 private.h southamerica strftime.c theory.html \
581 time2posix.3 tz-art.html tz-how-to.html tz-link.html \
582 tzfile.5 tzfile.h tzselect.8 tzselect.ksh \
583 workman.sh zdump.8 zdump.c zic.8 zic.c \
584 ziguard.awk zishrink.awk \
585 zone.tab zone1970.tab
587 # And for the benefit of csh users on systems that assume the user
588 # shell should be used to handle commands in Makefiles. . .
592 all: tzselect zic zdump libtz.a $(TABDATA) \
593 vanguard.zi main.zi rearguard.zi
595 ALL: all date $(ENCHILADA)
597 install: all $(DATA) $(REDO) $(MANS)
598 mkdir -p '$(DESTDIR)$(BINDIR)' \
599 '$(DESTDIR)$(ZDUMPDIR)' '$(DESTDIR)$(ZICDIR)' \
600 '$(DESTDIR)$(LIBDIR)' \
601 '$(DESTDIR)$(MANDIR)/man3' '$(DESTDIR)$(MANDIR)/man5' \
602 '$(DESTDIR)$(MANDIR)/man8'
603 $(ZIC_INSTALL) -l $(LOCALTIME) \
604 `case '$(POSIXRULES)' in ?*) echo '-p';; esac \
606 -t '$(DESTDIR)$(TZDEFAULT)'
607 cp -f $(TABDATA) '$(DESTDIR)$(TZDIR)/.'
608 cp tzselect '$(DESTDIR)$(BINDIR)/.'
609 cp zdump '$(DESTDIR)$(ZDUMPDIR)/.'
610 cp zic '$(DESTDIR)$(ZICDIR)/.'
611 cp libtz.a '$(DESTDIR)$(LIBDIR)/.'
612 $(RANLIB) '$(DESTDIR)$(LIBDIR)/libtz.a'
613 cp -f newctime.3 newtzset.3 '$(DESTDIR)$(MANDIR)/man3/.'
614 cp -f tzfile.5 '$(DESTDIR)$(MANDIR)/man5/.'
615 cp -f tzselect.8 zdump.8 zic.8 '$(DESTDIR)$(MANDIR)/man8/.'
617 INSTALL: ALL install date.1
618 mkdir -p '$(DESTDIR)$(BINDIR)' '$(DESTDIR)$(MANDIR)/man1'
619 cp date '$(DESTDIR)$(BINDIR)/.'
620 cp -f date.1 '$(DESTDIR)$(MANDIR)/man1/.'
622 # Calculate version number from git, if available.
623 # Otherwise, use $(VERSION) unless it is "unknown" and there is already
624 # a 'version' file, in which case reuse the existing 'version' contents
625 # and append "-dirty" if the contents do not already end in "-dirty".
626 version: $(VERSION_DEPS)
627 { (type git) >/dev/null 2>&1 && \
628 V=`git describe --match '[0-9][0-9][0-9][0-9][a-z]*' \
629 --abbrev=7 --dirty` || \
630 if test '$(VERSION)' = unknown && V=`cat $@`; then \
631 case $$V in *-dirty);; *) V=$$V-dirty;; esac; \
635 printf '%s\n' "$$V" >$@.out
638 # These files can be tailored by setting BACKWARD, PACKRATDATA, PACKRATLIST.
639 vanguard.zi main.zi rearguard.zi: $(DSTDATA_ZI_DEPS)
641 -v DATAFORM=`expr $@ : '\(.*\).zi'` \
642 -v PACKRATDATA='$(PACKRATDATA)' \
643 -v PACKRATLIST='$(PACKRATLIST)' \
645 $(TDATA) $(PACKRATDATA) >$@.out
647 # This file has a version comment that attempts to capture any tailoring
648 # via BACKWARD, DATAFORM, PACKRATDATA, PACKRATLIST, and REDO.
649 tzdata.zi: $(DATAFORM).zi version zishrink.awk
650 version=`sed 1q version` && \
652 -v dataform='$(DATAFORM)' \
653 -v deps='$(DSTDATA_ZI_DEPS) zishrink.awk' \
655 -v version="$$version" \
657 $(DATAFORM).zi >$@.out
661 VERSION=`cat version` && printf '%s\n' \
662 'static char const PKGVERSION[]="($(PACKAGE)) ";' \
663 "static char const TZVERSION[]=\"$$VERSION\";" \
664 'static char const REPORT_BUGS_TO[]="$(BUGEMAIL)";' \
669 $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZDOBJS) $(LDLIBS)
672 $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZCOBJS) $(LDLIBS)
674 leapseconds: $(LEAP_DEPS)
675 $(AWK) -v EXPIRES_LINE=$(EXPIRES_LINE) \
676 -f leapseconds.awk leap-seconds.list >$@.out
679 # Arguments to pass to submakes of install_data.
680 # They can be overridden by later submake arguments.
682 BACKWARD='$(BACKWARD)' \
683 DESTDIR='$(DESTDIR)' \
684 LEAPSECONDS='$(LEAPSECONDS)' \
685 PACKRATDATA='$(PACKRATDATA)' \
686 PACKRATLIST='$(PACKRATLIST)' \
687 TZDEFAULT='$(TZDEFAULT)' \
691 INSTALL_DATA_DEPS = zic leapseconds tzdata.zi
693 # 'make install_data' installs one set of TZif files.
694 install_data: $(INSTALL_DATA_DEPS)
695 $(ZIC_INSTALL) tzdata.zi
697 posix_only: $(INSTALL_DATA_DEPS)
698 $(MAKE) $(INSTALLARGS) LEAPSECONDS= install_data
700 right_only: $(INSTALL_DATA_DEPS)
701 $(MAKE) $(INSTALLARGS) LEAPSECONDS='-L leapseconds' \
704 # In earlier versions of this makefile, the other two directories were
705 # subdirectories of $(TZDIR). However, this led to configuration errors.
706 # For example, with posix_right under the earlier scheme,
707 # TZ='right/Australia/Adelaide' got you localtime with leap seconds,
708 # but gmtime without leap seconds, which led to problems with applications
709 # like sendmail that subtract gmtime from localtime.
710 # Therefore, the other two directories are now siblings of $(TZDIR).
711 # You must replace all of $(TZDIR) to switch from not using leap seconds
712 # to using them, or vice versa.
713 right_posix: right_only
714 rm -fr '$(DESTDIR)$(TZDIR)-leaps'
715 ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-leaps' || \
716 $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only
717 $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only
719 posix_right: posix_only
720 rm -fr '$(DESTDIR)$(TZDIR)-posix'
721 ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-posix' || \
722 $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only
723 $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only
727 # dummy.zd is not a real file; it is mentioned here only so that the
728 # top-level 'make' does not have a syntax error.
730 # Rule used only by submakes invoked by the $(TZS_NEW) rule.
731 # It is separate so that GNU 'make -j' can run instances in parallel.
733 ./zdump -i $(TZS_CUTOFF_FLAG) '$(wd)/'$$(expr $@ : '\(.*\).zd') \
736 TZS_NEW_DEPS = tzdata.zi zdump zic
737 $(TZS_NEW): $(TZS_NEW_DEPS)
738 rm -fr tzs$(TZS_YEAR).dir
739 mkdir tzs$(TZS_YEAR).dir
740 $(zic) -d tzs$(TZS_YEAR).dir tzdata.zi
741 $(AWK) '/^L/{print "Link\t" $$2 "\t" $$3}' \
742 tzdata.zi | LC_ALL=C sort >$@.out
744 x=`$(AWK) '/^Z/{print "tzs$(TZS_YEAR).dir/" $$2 ".zd"}' \
746 | LC_ALL=C sort -t . -k 2,2` && \
750 $(MAKE) wd="$$wd" TZS_CUTOFF_FLAG="$(TZS_CUTOFF_FLAG)" \
751 ZDS="$$ZDS" $$ZDS && \
752 sed 's,^TZ=".*\.dir/,TZ=",' $$ZDS >>$@.out
753 rm -fr tzs$(TZS_YEAR).dir
756 # If $(TZS) exists but 'make check_tzs' fails, a maintainer should inspect the
757 # failed output and fix the inconsistency, perhaps by running 'make force_tzs'.
761 force_tzs: $(TZS_NEW)
766 $(AR) -rc $@ $(LIBOBJS)
770 $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(DATEOBJS) $(LDLIBS)
772 tzselect: tzselect.ksh version
773 VERSION=`cat version` && sed \
774 -e 's|#!/bin/bash|#!$(KSHELL)|g' \
775 -e 's|AWK=[^}]*|AWK='\''$(AWK)'\''|g' \
776 -e 's|\(PKGVERSION\)=.*|\1='\''($(PACKAGE)) '\''|' \
777 -e 's|\(REPORT_BUGS_TO\)=.*|\1=$(BUGEMAIL)|' \
778 -e 's|TZDIR=[^}]*|TZDIR=$(TZDIR)|' \
779 -e 's|\(TZVERSION\)=.*|\1='"$$VERSION"'|' \
784 check: check_back check_mild
785 check_mild: check_character_set check_white_space check_links \
786 check_name_lengths check_slashed_abbrs check_sorted \
787 check_tables check_web check_ziguard check_zishrink check_tzs
789 check_character_set: $(ENCHILADA)
790 test ! '$(UTF8_LOCALE)' || \
791 ! printf 'A\304\200B\n' | \
792 LC_ALL='$(UTF8_LOCALE)' grep -q '^A.B$$' >/dev/null 2>&1 || { \
793 LC_ALL='$(UTF8_LOCALE)' && export LC_ALL && \
795 ! grep -Env $(SAFE_LINE) $(MANS) date.1 $(MANTXTS) \
796 $(MISC) $(SOURCES) $(WEB_PAGES) \
797 CONTRIBUTING LICENSE README SECURITY \
798 version tzdata.zi && \
799 ! grep -Env $(SAFE_LINE)'|^UNUSUAL_OK_'$(OK_CHAR)'*$$' \
801 ! grep -Env $(SAFE_SHARP_LINE) $(TDATA_TO_CHECK) backzone \
802 leapseconds zone.tab && \
803 ! grep -Env $(OK_LINE) $(ENCHILADA); \
807 check_white_space: $(ENCHILADA)
808 patfmt=' \t|[\f\r\v]' && pat=`printf "$$patfmt\\n"` && \
810 $$(ls $(ENCHILADA) | grep -Fvx leap-seconds.list)
812 $$(ls $(ENCHILADA) | grep -Fvx leap-seconds.list)
815 PRECEDES_FILE_NAME = ^(Zone|Link[$s]+[^$s]+)[$s]+
816 FILE_NAME_COMPONENT_TOO_LONG = $(PRECEDES_FILE_NAME)[^$s]*[^/$s]{15}
818 check_name_lengths: $(TDATA_TO_CHECK) backzone
819 ! grep -En '$(FILE_NAME_COMPONENT_TOO_LONG)' \
820 $(TDATA_TO_CHECK) backzone
823 PRECEDES_STDOFF = ^(Zone[$s]+[^$s]+)?[$s]+
824 STDOFF = [-+]?[0-9:.]+
825 RULELESS_SAVE = (-|$(STDOFF)[sd]?)
826 RULELESS_SLASHED_ABBRS = \
827 $(PRECEDES_STDOFF)$(STDOFF)[$s]+$(RULELESS_SAVE)[$s]+[^$s]*/
829 check_slashed_abbrs: $(TDATA_TO_CHECK)
830 ! grep -En '$(RULELESS_SLASHED_ABBRS)' $(TDATA_TO_CHECK)
833 CHECK_CC_LIST = { n = split($$1,a,/,/); for (i=2; i<=n; i++) print a[1], a[i]; }
835 check_sorted: backward backzone
836 $(AWK) '/^Link/ {printf "%.5d %s\n", g, $$3} !/./ {g++}' \
837 backward | LC_ALL=C sort -cu
838 $(AWK) '/^Zone/ {print $$2}' backzone | LC_ALL=C sort -cu
841 check_back: checklinks.awk $(TDATA_TO_CHECK)
843 -v DATAFORM=$(DATAFORM) \
844 -v backcheck=backward \
845 -f checklinks.awk $(TDATA_TO_CHECK)
848 check_links: checklinks.awk tzdata.zi
850 -v DATAFORM=$(DATAFORM) \
851 -f checklinks.awk tzdata.zi
854 check_tables: checktab.awk $(YDATA) backward $(ZONETABLES)
855 for tab in $(ZONETABLES); do \
856 test "$$tab" = zone.tab && links='$(BACKWARD)' || links=''; \
857 $(AWK) -f checktab.awk -v zone_table=$$tab $(YDATA) $$links \
862 check_tzs: $(TZS) $(TZS_NEW)
863 if test -s $(TZS); then \
864 $(DIFF_TZS) $(TZS) $(TZS_NEW); \
866 cp $(TZS_NEW) $(TZS); \
870 check_web: $(CHECK_WEB_PAGES)
871 check_theory.html: theory.html
872 check_tz-art.html: tz-art.html
873 check_tz-how-to.html: tz-how-to.html
874 check_tz-link.html: tz-link.html
875 check_theory.html check_tz-art.html check_tz-how-to.html check_tz-link.html:
876 $(CURL) -sS --url https://validator.w3.org/nu/ -F out=gnu \
877 -F file=@$$(expr $@ : 'check_\(.*\)') -o $@.out && \
878 test ! -s $@.out || { cat $@.out; exit 1; }
881 check_ziguard: rearguard.zi vanguard.zi ziguard.awk
882 $(AWK) -v DATAFORM=rearguard -f ziguard.awk vanguard.zi | \
883 diff -u rearguard.zi -
884 $(AWK) -v DATAFORM=vanguard -f ziguard.awk rearguard.zi | \
885 diff -u vanguard.zi -
888 # Check that zishrink.awk does not alter the data, and that ziguard.awk
889 # preserves main-format data.
890 check_zishrink: check_zishrink_posix check_zishrink_right
891 check_zishrink_posix check_zishrink_right: \
892 zic leapseconds $(PACKRATDATA) $(PACKRATLIST) \
893 $(TDATA) $(DATAFORM).zi tzdata.zi
894 rm -fr $@.dir $@-t.dir $@-shrunk.dir
895 mkdir $@.dir $@-t.dir $@-shrunk.dir
897 *_right) leap='-L leapseconds';; \
900 $(ZIC) $$leap -d $@.dir $(DATAFORM).zi && \
901 $(ZIC) $$leap -d $@-shrunk.dir tzdata.zi && \
902 case $(DATAFORM),$(PACKRATLIST) in \
904 $(ZIC) $$leap -d $@-t.dir $(TDATA) && \
905 $(AWK) '/^Rule/' $(TDATA) | \
906 $(ZIC) $$leap -d $@-t.dir - $(PACKRATDATA) && \
907 diff -r $@.dir $@-t.dir;; \
909 diff -r $@.dir $@-shrunk.dir
910 rm -fr $@.dir $@-t.dir $@-shrunk.dir
915 rm -f *.o *.out $(TIME_T_ALTERNATIVES) \
916 check_* core typecheck_* \
917 date tzselect version.h zdump zic libtz.a
920 rm -f *.zi $(TZS_NEW)
922 maintainer-clean: clean
923 @echo 'This command is intended for maintainers to use; it'
924 @echo 'deletes files that may need special tools to rebuild.'
925 rm -f leapseconds version $(MANTXTS) $(TZS) *.asc *.tar.*
930 public: check check_public $(CHECK_TIME_T_ALTERNATIVES) \
934 newctime.3.txt: newctime.3
935 newstrftime.3.txt: newstrftime.3
936 newtzset.3.txt: newtzset.3
937 time2posix.3.txt: time2posix.3
938 tzfile.5.txt: tzfile.5
939 tzselect.8.txt: tzselect.8
943 $(MANTXTS): workman.sh
944 LC_ALL=C sh workman.sh `expr $@ : '\(.*\)\.txt$$'` >$@.out
947 # Set file timestamps deterministically if possible,
948 # so that tarballs containing the timestamps are reproducible.
950 # '$(SET_TIMESTAMP_N) N DEST A B C ...' sets the timestamp of the
951 # file DEST to the maximum of the timestamps of the files A B C ...,
952 # plus N if GNU ls and touch are available.
953 SET_TIMESTAMP_N = sh -c '\
954 n=$$0 dest=$$1; shift; \
955 touch -cmr `ls -t "$$@" | sed 1q` "$$dest" && \
956 if test $$n != 0 && \
957 lsout=`ls -n --time-style="+%s" "$$dest" 2>/dev/null`; then \
959 touch -cmd @`expr $$7 + $$n` "$$dest"; \
961 # If DEST depends on A B C ... in this Makefile, callers should use
962 # $(SET_TIMESTAMP_DEP) DEST A B C ..., for the benefit of any
963 # downstream 'make' that considers equal timestamps to be out of date.
964 # POSIX allows this 'make' behavior, and HP-UX 'make' does it.
965 # If all that matters is that the timestamp be reproducible
966 # and plausible, use $(SET_TIMESTAMP).
967 SET_TIMESTAMP = $(SET_TIMESTAMP_N) 0
968 SET_TIMESTAMP_DEP = $(SET_TIMESTAMP_N) 1
970 # Set the timestamps to those of the git repository, if available,
971 # and if the files have not changed since then.
972 # This uses GNU 'ls --time-style=+%s', which outputs the seconds count,
973 # and GNU 'touch -d@N FILE', where N is the number of seconds since 1970.
974 # If git or GNU is absent, don't bother to sync with git timestamps.
975 # Also, set the timestamp of each prebuilt file like 'leapseconds'
976 # to be the maximum of the files it depends on.
977 set-timestamps.out: $(EIGHT_YARDS)
979 if (type git) >/dev/null 2>&1 && \
980 files=`git ls-files $(EIGHT_YARDS)` && \
981 touch -md @1 test.out; then \
983 for file in $$files; do \
984 if git diff --quiet $$file; then \
985 time=`git log -1 --format='tformat:%ct' $$file` && \
986 touch -cmd @$$time $$file; \
988 echo >&2 "$$file: warning: does not match repository"; \
992 $(SET_TIMESTAMP_DEP) leapseconds $(LEAP_DEPS)
993 for file in `ls $(MANTXTS) | sed 's/\.txt$$//'`; do \
994 $(SET_TIMESTAMP_DEP) $$file.txt $$file workman.sh || \
997 $(SET_TIMESTAMP_DEP) version $(VERSION_DEPS)
998 $(SET_TIMESTAMP_DEP) tzdata.zi $(TZDATA_ZI_DEPS)
1000 set-tzs-timestamp.out: $(TZS)
1001 $(SET_TIMESTAMP_DEP) $(TZS) $(TZS_DEPS)
1004 # The zics below ensure that each data file can stand on its own.
1005 # We also do an all-files run to catch links to links.
1007 check_public: $(VERSION_DEPS)
1010 ln $(VERSION_DEPS) public.dir
1011 cd public.dir && $(MAKE) CFLAGS='$(GCC_DEBUG_FLAGS)' ALL
1012 for i in $(TDATA_TO_CHECK) public.dir/tzdata.zi \
1013 public.dir/vanguard.zi public.dir/main.zi \
1014 public.dir/rearguard.zi; \
1016 public.dir/zic -v -d public.dir/zoneinfo $$i 2>&1 || exit; \
1018 public.dir/zic -v -d public.dir/zoneinfo-all $(TDATA_TO_CHECK)
1020 : Also check 'backzone' syntax.
1021 rm public.dir/main.zi
1022 cd public.dir && $(MAKE) PACKRATDATA=backzone main.zi
1023 public.dir/zic -d public.dir/zoneinfo main.zi
1024 rm public.dir/main.zi
1026 $(MAKE) PACKRATDATA=backzone PACKRATLIST=zone.tab main.zi
1027 public.dir/zic -d public.dir/zoneinfo main.zi
1032 # Check that the code works under various alternative
1033 # implementations of time_t.
1034 check_time_t_alternatives: $(TIME_T_ALTERNATIVES)
1035 $(TIME_T_ALTERNATIVES_TAIL): $(TIME_T_ALTERNATIVES_HEAD)
1036 $(TIME_T_ALTERNATIVES): $(VERSION_DEPS)
1039 ln $(VERSION_DEPS) $@.dir
1041 int*32_t) range=-2147483648,2147483648;; \
1042 u*) range=0,4294967296;; \
1043 *) range=-4294967296,4294967296;; \
1046 zones=`$(AWK) '/^[^#]/ { print $$3 }' <zone1970.tab` && \
1047 if test $@ = $(TIME_T_ALTERNATIVES_HEAD); then \
1050 range_target=to$$range.tzs; \
1053 $(MAKE) TOPDIR="$$wd/$@.dir" \
1054 CFLAGS='$(CFLAGS) -Dtime_tz='"'$@'" \
1057 TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \
1058 install $$range_target) && \
1059 test $@ = $(TIME_T_ALTERNATIVES_HEAD) || { \
1060 (cd $(TIME_T_ALTERNATIVES_HEAD).dir && \
1061 $(MAKE) TOPDIR="$$wd/$@.dir" \
1062 TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \
1065 $(DIFF_TZS) $(TIME_T_ALTERNATIVES_HEAD).dir/to$$range.tzs \
1066 $@.dir/to$$range.tzs && \
1067 if diff -q Makefile Makefile 2>/dev/null; then \
1068 quiet_option='-q'; \
1072 diff $$quiet_option -r $(TIME_T_ALTERNATIVES_HEAD).dir/etc \
1074 diff $$quiet_option -r \
1075 $(TIME_T_ALTERNATIVES_HEAD).dir/usr/share \
1081 tzcode$(VERSION).tar.gz.asc \
1082 tzdata$(VERSION).tar.gz.asc
1084 tzdata$(VERSION)-rearguard.tar.gz.asc
1085 ALL_ASC = $(TRADITIONAL_ASC) $(REARGUARD_ASC) \
1086 tzdb-$(VERSION).tar.lz.asc
1088 tarballs rearguard_tarballs tailored_tarballs traditional_tarballs \
1089 signatures rearguard_signatures traditional_signatures: \
1090 version set-timestamps.out rearguard.zi vanguard.zi
1091 VERSION=`cat version` && \
1092 $(MAKE) AWK='$(AWK)' VERSION="$$VERSION" $@_version
1094 # These *_version rules are intended for use if VERSION is set by some
1095 # other means. Ordinarily these rules are used only by the above
1096 # non-_version rules, which set VERSION on the 'make' command line.
1097 tarballs_version: traditional_tarballs_version rearguard_tarballs_version \
1098 tzdb-$(VERSION).tar.lz
1099 rearguard_tarballs_version: \
1100 tzdata$(VERSION)-rearguard.tar.gz
1101 traditional_tarballs_version: \
1102 tzcode$(VERSION).tar.gz tzdata$(VERSION).tar.gz
1103 tailored_tarballs_version: \
1104 tzdata$(VERSION)-tailored.tar.gz
1105 signatures_version: $(ALL_ASC)
1106 rearguard_signatures_version: $(REARGUARD_ASC)
1107 traditional_signatures_version: $(TRADITIONAL_ASC)
1109 tzcode$(VERSION).tar.gz: set-timestamps.out
1110 LC_ALL=C && export LC_ALL && \
1111 tar $(TARFLAGS) -cf - \
1112 $(COMMON) $(DOCS) $(SOURCES) | \
1113 gzip $(GZIPFLAGS) >$@.out
1116 tzdata$(VERSION).tar.gz: set-timestamps.out
1117 LC_ALL=C && export LC_ALL && \
1118 tar $(TARFLAGS) -cf - $(TZDATA_DIST) | \
1119 gzip $(GZIPFLAGS) >$@.out
1122 # Create empty files with a reproducible timestamp.
1123 CREATE_EMPTY = TZ=UTC0 touch -mt 202010122253.00
1125 # The obsolescent *rearguard* targets and related macros are present
1126 # for backwards compatibility with tz releases 2018e through 2022a.
1127 # They should go away eventually. To build rearguard tarballs you
1128 # can instead use 'make DATAFORM=rearguard tailored_tarballs'.
1129 tzdata$(VERSION)-rearguard.tar.gz: rearguard.zi set-timestamps.out
1132 ln $(TZDATA_DIST) $@.dir
1133 cd $@.dir && rm -f $(TDATA) $(PACKRATDATA) version
1134 for f in $(TDATA) $(PACKRATDATA); do \
1136 $(AWK) -v DATAFORM=rearguard -f ziguard.awk $$f >$$rearf && \
1137 $(SET_TIMESTAMP_DEP) $$rearf ziguard.awk $$f || exit; \
1139 sed '1s/$$/-rearguard/' <version >$@.dir/version
1140 : The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier.
1141 $(CREATE_EMPTY) $@.dir/pacificnew
1142 touch -cmr version $@.dir/version
1143 LC_ALL=C && export LC_ALL && \
1145 tar $(TARFLAGS) -cf - \
1146 $(TZDATA_DIST) pacificnew | \
1147 gzip $(GZIPFLAGS)) >$@.out
1150 # Create a tailored tarball suitable for TZUpdater and compatible tools.
1151 # For example, 'make DATAFORM=vanguard tailored_tarballs' makes a tarball
1152 # useful for testing whether TZUpdater supports vanguard form.
1153 # The generated tarball is not byte-for-byte equivalent to a hand-tailored
1154 # traditional tarball, as data entries are put into 'etcetera' even if they
1155 # came from some other source file. However, the effect should be the same
1156 # for ordinary use, which reads all the source files.
1157 tzdata$(VERSION)-tailored.tar.gz: set-timestamps.out
1160 : The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier.
1162 $(CREATE_EMPTY) $(PRIMARY_YDATA) $(NDATA) backward \
1163 `test $(DATAFORM) = vanguard || echo pacificnew`
1164 (grep '^#' tzdata.zi && echo && cat $(DATAFORM).zi) \
1166 touch -cmr tzdata.zi $@.dir/etcetera
1168 -e '/^# *version *\(.*\)/h' \
1169 -e '/^# *ddeps */H' \
1172 -e 's/^# *version *//' \
1173 -e 's/\n# *ddeps */-/' \
1176 <tzdata.zi >$@.dir/version
1177 touch -cmr version $@.dir/version
1179 for file in $(TZDATA_DIST); do \
1180 test -f $@.dir/$$file || links="$$links $$file"; \
1183 LC_ALL=C && export LC_ALL && \
1185 tar $(TARFLAGS) -cf - * | gzip $(GZIPFLAGS)) >$@.out
1188 tzdb-$(VERSION).tar.lz: set-timestamps.out set-tzs-timestamp.out
1189 rm -fr tzdb-$(VERSION)
1190 mkdir tzdb-$(VERSION)
1191 ln $(ENCHILADA) tzdb-$(VERSION)
1192 $(SET_TIMESTAMP) tzdb-$(VERSION) tzdb-$(VERSION)/*
1193 LC_ALL=C && export LC_ALL && \
1194 tar $(TARFLAGS) -cf - tzdb-$(VERSION) | lzip -9 >$@.out
1197 tzcode$(VERSION).tar.gz.asc: tzcode$(VERSION).tar.gz
1198 tzdata$(VERSION).tar.gz.asc: tzdata$(VERSION).tar.gz
1199 tzdata$(VERSION)-rearguard.tar.gz.asc: tzdata$(VERSION)-rearguard.tar.gz
1200 tzdb-$(VERSION).tar.lz.asc: tzdb-$(VERSION).tar.lz
1202 $(GPG) --armor --detach-sign $?
1204 TYPECHECK_CFLAGS = $(CFLAGS) -DTYPECHECK -D__time_t_defined -D_TIME_T
1205 typecheck: typecheck_long_long typecheck_unsigned
1206 typecheck_long_long typecheck_unsigned: $(VERSION_DEPS)
1209 ln $(VERSION_DEPS) $@.dir
1212 *_long_long) i="long long";; \
1213 *_unsigned ) i="unsigned" ;; \
1215 typecheck_cflags='' && \
1217 CFLAGS="$(TYPECHECK_CFLAGS) \"-Dtime_t=$$i\"" \
1220 $@.dir/zdump -i -c 1970,1971 Europe/Rome
1223 zonenames: tzdata.zi
1224 @$(AWK) '/^Z/ { print $$2 } /^L/ { print $$3 }' tzdata.zi
1226 asctime.o: private.h tzfile.h
1228 difftime.o: private.h
1229 localtime.o: private.h tzfile.h
1230 strftime.o: private.h tzfile.h
1232 zic.o: private.h tzfile.h version.h
1234 .PHONY: ALL INSTALL all
1235 .PHONY: check check_mild check_time_t_alternatives
1236 .PHONY: check_web check_zishrink
1237 .PHONY: clean clean_misc dummy.zd force_tzs
1238 .PHONY: install install_data maintainer-clean names
1239 .PHONY: posix_only posix_right public
1240 .PHONY: rearguard_signatures rearguard_signatures_version
1241 .PHONY: rearguard_tarballs rearguard_tarballs_version
1242 .PHONY: right_only right_posix signatures signatures_version
1243 .PHONY: tarballs tarballs_version
1244 .PHONY: traditional_signatures traditional_signatures_version
1245 .PHONY: traditional_tarballs traditional_tarballs_version
1246 .PHONY: tailored_tarballs tailored_tarballs_version
1248 .PHONY: zonenames zones