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1# Make and install tzdb code and data.
2
3# This file is in the public domain, so clarified as of
4# 2009-05-17 by Arthur David Olson.
5
6# Package name for the code distribution.
7PACKAGE=	tzcode
8
9# Version number for the distribution, overridden in the 'tarballs' rule below.
10VERSION=	unknown
11
12# Email address for bug reports.
13BUGEMAIL=	tz@iana.org
14
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:
19#	DATAFORM=	vanguard
20# To wait a while before using new features, to give downstream users
21# time to upgrade zic (the default), use:
22#	DATAFORM=	main
23# To wait even longer for new features, use:
24#	DATAFORM=	rearguard
25# Rearguard users might also want "ZFLAGS = -b fat"; see below.
26DATAFORM=		main
27
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.
32# Use the command
33#	make zonenames
34# to get a list of the values you can use for LOCALTIME.
35
36LOCALTIME=	GMT
37
38# The POSIXRULES macro controls interpretation of nonstandard and obsolete
39# POSIX-like TZ settings like TZ='EET-2EEST' that lack DST transition rules.
40# Such a setting uses the rules in a template file to determine
41# "spring forward" and "fall back" days and times; the environment
42# variable itself specifies UT offsets of standard and daylight saving time.
43#
44# If POSIXRULES is '-', no template is installed; this is the default.
45#
46# Any other value for POSIXRULES is obsolete and should not be relied on, as:
47# * It does not work correctly in popular implementations such as GNU/Linux.
48# * It does not work even in tzcode, except for historical timestamps
49#   that precede the last explicit transition in the POSIXRULES file.
50#   Hence it typically does not work for current and future timestamps.
51# In short, software should avoid ruleless settings like TZ='EET-2EEST'
52# and so should not depend on the value of POSIXRULES.
53#
54# If, despite the above, you want a template for handling these settings,
55# you can change the line below (after finding the timezone you want in the
56# one of the $(TDATA) source files, or adding it to a source file).
57# Alternatively, if you discover you've got the wrong timezone, you can just
58# 'zic -p -' to remove it, or 'zic -p rightzone' to change it.
59# Use the command
60#	make zonenames
61# to get a list of the values you can use for POSIXRULES.
62
63POSIXRULES=	-
64
65# Also see TZDEFRULESTRING below, which takes effect only
66# if the time zone files cannot be accessed.
67
68
69# Installation locations.
70#
71# The defaults are suitable for Debian, except that if REDO is
72# posix_right or right_posix then files that Debian puts under
73# /usr/share/zoneinfo/posix and /usr/share/zoneinfo/right are instead
74# put under /usr/share/zoneinfo-posix and /usr/share/zoneinfo-leaps,
75# respectively.  Problems with the Debian approach are discussed in
76# the commentary for the right_posix rule (below).
77
78# Destination directory, which can be used for staging.
79# 'make DESTDIR=/stage install' installs under /stage (e.g., to
80# /stage/etc/localtime instead of to /etc/localtime).  Files under
81# /stage are not intended to work as-is, but can be copied by hand to
82# the root directory later.  If DESTDIR is empty, 'make install' does
83# not stage, but installs directly into production locations.
84DESTDIR =
85
86# Everything is installed into subdirectories of TOPDIR, and used there.
87# TOPDIR should be empty (meaning the root directory),
88# or a directory name that does not end in "/".
89# TOPDIR should be empty or an absolute name unless you're just testing.
90TOPDIR =
91
92# The default local timezone is taken from the file TZDEFAULT.
93TZDEFAULT = $(TOPDIR)/etc/localtime
94
95# The subdirectory containing installed program and data files, and
96# likewise for installed files that can be shared among architectures.
97# These should be relative file names.
98USRDIR = usr
99USRSHAREDIR = $(USRDIR)/share
100
101# "Compiled" timezone information is placed in the "TZDIR" directory
102# (and subdirectories).
103# TZDIR_BASENAME should not contain "/" and should not be ".", ".." or empty.
104TZDIR_BASENAME=	zoneinfo
105TZDIR = $(TOPDIR)/$(USRSHAREDIR)/$(TZDIR_BASENAME)
106
107# The "tzselect" and (if you do "make INSTALL") "date" commands go in:
108BINDIR = $(TOPDIR)/$(USRDIR)/bin
109
110# The "zdump" command goes in:
111ZDUMPDIR = $(BINDIR)
112
113# The "zic" command goes in:
114ZICDIR = $(TOPDIR)/$(USRDIR)/sbin
115
116# Manual pages go in subdirectories of. . .
117MANDIR = $(TOPDIR)/$(USRSHAREDIR)/man
118
119# Library functions are put in an archive in LIBDIR.
120LIBDIR = $(TOPDIR)/$(USRDIR)/lib
121
122
123# Types to try, as an alternative to time_t.
124TIME_T_ALTERNATIVES = $(TIME_T_ALTERNATIVES_HEAD) $(TIME_T_ALTERNATIVES_TAIL)
125TIME_T_ALTERNATIVES_HEAD = int_least64_t
126TIME_T_ALTERNATIVES_TAIL = int_least32_t uint_least32_t uint_least64_t
127
128# What kind of TZif data files to generate.  (TZif is the binary time
129# zone data format that zic generates; see Internet RFC 8536.)
130# If you want only POSIX time, with time values interpreted as
131# seconds since the epoch (not counting leap seconds), use
132#	REDO=		posix_only
133# below.  If you want only "right" time, with values interpreted
134# as seconds since the epoch (counting leap seconds), use
135#	REDO=		right_only
136# below.  If you want both sets of data available, with leap seconds not
137# counted normally, use
138#	REDO=		posix_right
139# below.  If you want both sets of data available, with leap seconds counted
140# normally, use
141#	REDO=		right_posix
142# below.  POSIX mandates that leap seconds not be counted; for compatibility
143# with it, use "posix_only" or "posix_right".  Use POSIX time on systems with
144# leap smearing; this can work better than unsmeared "right" time with
145# applications that are not leap second aware, and is closer to unsmeared
146# "right" time than unsmeared POSIX time is (e.g., 0.5 vs 1.0 s max error).
147
148REDO=		posix_right
149
150# Whether to put an "Expires" line in the leapseconds file.
151# Use EXPIRES_LINE=1 to put the line in, 0 to omit it.
152# The EXPIRES_LINE value matters only if REDO's value contains "right".
153# If you change EXPIRES_LINE, remove the leapseconds file before running "make".
154# zic's support for the Expires line was introduced in tzdb 2020a,
155# and was modified in tzdb 2021b to generate version 4 TZif files.
156# EXPIRES_LINE defaults to 0 for now so that the leapseconds file
157# can be given to pre-2020a zic implementations and so that TZif files
158# built by newer zic implementations can be read by pre-2021b libraries.
159EXPIRES_LINE=	0
160
161# To install data in text form that has all the information of the TZif data,
162# (optionally incorporating leap second information), use
163#	TZDATA_TEXT=	tzdata.zi leapseconds
164# To install text data without leap second information (e.g., because
165# REDO='posix_only'), use
166#	TZDATA_TEXT=	tzdata.zi
167# To avoid installing text data, use
168#	TZDATA_TEXT=
169
170TZDATA_TEXT=	leapseconds tzdata.zi
171
172# For backward-compatibility links for old zone names, use
173#	BACKWARD=	backward
174# To omit these links, use
175#	BACKWARD=
176
177BACKWARD=	backward
178
179# If you want out-of-scope and often-wrong data from the file 'backzone', use
180#	PACKRATDATA=	backzone
181# To omit this data, use
182#	PACKRATDATA=
183
184PACKRATDATA=
185
186# The name of a locale using the UTF-8 encoding, used during self-tests.
187# The tests are skipped if the name does not appear to work on this system.
188
189UTF8_LOCALE=	en_US.utf8
190
191# Non-default libraries needed to link.
192LDLIBS=
193
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_DIRECT_H if mkdir needs <direct.h> (MS-Windows)
205#  -DHAVE_GENERIC=0 if _Generic does not work
206#  -DHAVE_GETTEXT if 'gettext' works (e.g., GNU/Linux, FreeBSD, Solaris)
207#  -DHAVE_INCOMPATIBLE_CTIME_R if your system's time.h declares
208#	ctime_r and asctime_r incompatibly with the POSIX standard
209#	(Solaris when _POSIX_PTHREAD_SEMANTICS is not defined).
210#  -DHAVE_INTTYPES_H if you have a non-C99 compiler with <inttypes.h>
211#  -DHAVE_LINK=0 if your system lacks a link function
212#  -DHAVE_LOCALTIME_R=0 if your system lacks a localtime_r function
213#  -DHAVE_LOCALTIME_RZ=0 if you do not want zdump to use localtime_rz
214#	localtime_rz can make zdump significantly faster, but is nonstandard.
215#  -DHAVE_MALLOC_ERRNO=0 if malloc etc. do not set errno on failure.
216#  -DHAVE_POSIX_DECLS=0 if your system's include files do not declare
217#	functions like 'link' or variables like 'tzname' required by POSIX
218#  -DHAVE_SNPRINTF=0 if your system lacks the snprintf function
219#  -DHAVE_STDBOOL_H if you have a non-C99 compiler with <stdbool.h>
220#  -DHAVE_STDINT_H if you have a non-C99 compiler with <stdint.h>
221#  -DHAVE_STRFTIME_L if <time.h> declares locale_t and strftime_l
222#  -DHAVE_STRDUP=0 if your system lacks the strdup function
223#  -DHAVE_STRTOLL=0 if your system lacks the strtoll function
224#  -DHAVE_SYMLINK=0 if your system lacks the symlink function
225#  -DHAVE_SYS_STAT_H=0 if your compiler lacks a <sys/stat.h>
226#  -DHAVE_TZSET=0 if your system lacks a tzset function
227#  -DHAVE_UNISTD_H=0 if your compiler lacks a <unistd.h>
228#  -Dlocale_t=XXX if your system uses XXX instead of locale_t
229#  -DRESERVE_STD_EXT_IDS if your platform reserves standard identifiers
230#	with external linkage, e.g., applications cannot define 'localtime'.
231#  -Dssize_t=long on hosts like MS-Windows that lack ssize_t
232#  -DSUPPRESS_TZDIR to not prepend TZDIR to file names; this has
233#	security implications and is not recommended for general use
234#  -DTHREAD_SAFE to make localtime.c thread-safe, as POSIX requires;
235#	not needed by the main-program tz code, which is single-threaded.
236#	Append other compiler flags as needed, e.g., -pthread on GNU/Linux.
237#  -Dtime_tz=\"T\" to use T as the time_t type, rather than the system time_t
238#	This is intended for internal use only; it mangles external names.
239#  -DTZ_DOMAIN=\"foo\" to use "foo" for gettext domain name; default is "tz"
240#  -DTZ_DOMAINDIR=\"/path\" to use "/path" for gettext directory;
241#	the default is system-supplied, typically "/usr/lib/locale"
242#  -DTZDEFRULESTRING=\",date/time,date/time\" to default to the specified
243#	DST transitions if the time zone files cannot be accessed
244#  -DUNINIT_TRAP if reading uninitialized storage can cause problems
245#	other than simply getting garbage data
246#  -DUSE_LTZ=0 to build zdump with the system time zone library
247#	Also set TZDOBJS=zdump.o and CHECK_TIME_T_ALTERNATIVES= below.
248#  -DZIC_BLOAT_DEFAULT=\"fat\" to default zic's -b option to "fat", and
249#	similarly for "slim".  Fat TZif files work around incompatibilities
250#	and bugs in some TZif readers, notably readers that mishandle 64-bit
251#	data in TZif files.  Slim TZif files are more efficient and do not
252#	work around these incompatibilities and bugs.  If not given, the
253#	default is "slim".
254#  -DZIC_MAX_ABBR_LEN_WO_WARN=3
255#	(or some other number) to set the maximum time zone abbreviation length
256#	that zic will accept without a warning (the default is 6)
257#  $(GCC_DEBUG_FLAGS) if you are using recent GCC and want lots of checking
258# Select instrumentation via "make GCC_INSTRUMENT='whatever'".
259GCC_INSTRUMENT = \
260  -fsanitize=undefined -fsanitize-address-use-after-scope \
261  -fsanitize-undefined-trap-on-error -fstack-protector
262# Omit -fanalyzer from GCC_DEBUG_FLAGS, as it makes GCC too slow.
263GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 -fno-common \
264  $(GCC_INSTRUMENT) \
265  -Wall -Wextra \
266  -Walloc-size-larger-than=100000 -Warray-bounds=2 \
267  -Wbad-function-cast -Wcast-align=strict -Wdate-time \
268  -Wdeclaration-after-statement -Wdouble-promotion \
269  -Wduplicated-branches -Wduplicated-cond \
270  -Wformat=2 -Wformat-overflow=2 -Wformat-signedness -Wformat-truncation \
271  -Winit-self -Wlogical-op \
272  -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
273  -Wnull-dereference \
274  -Wold-style-definition -Woverlength-strings -Wpointer-arith \
275  -Wshadow -Wshift-overflow=2 -Wstrict-overflow \
276  -Wstrict-prototypes -Wstringop-overflow=4 \
277  -Wstringop-truncation -Wsuggest-attribute=cold \
278  -Wsuggest-attribute=const -Wsuggest-attribute=format \
279  -Wsuggest-attribute=malloc \
280  -Wsuggest-attribute=noreturn -Wsuggest-attribute=pure \
281  -Wtrampolines -Wundef -Wuninitialized -Wunused-macros \
282  -Wvariadic-macros -Wvla -Wwrite-strings \
283  -Wno-address -Wno-format-nonliteral -Wno-sign-compare \
284  -Wno-type-limits -Wno-unused-parameter
285#
286# If your system has a "GMT offset" field in its "struct tm"s
287# (or if you decide to add such a field in your system's "time.h" file),
288# add the name to a define such as
289#	-DTM_GMTOFF=tm_gmtoff
290# to the end of the "CFLAGS=" line.  If not defined, the code attempts to
291# guess TM_GMTOFF from other macros; define NO_TM_GMTOFF to suppress this.
292# Similarly, if your system has a "zone abbreviation" field, define
293#	-DTM_ZONE=tm_zone
294# and define NO_TM_ZONE to suppress any guessing.  These two fields are not
295# required by POSIX, but are widely available on GNU/Linux and BSD systems.
296#
297# The next batch of options control support for external variables
298# exported by tzcode.  In practice these variables are less useful
299# than TM_GMTOFF and TM_ZONE.  However, most of them are standardized.
300# #
301# # To omit or support the external variable "tzname", add one of:
302# #	-DHAVE_TZNAME=0 # do not support "tzname"
303# #	-DHAVE_TZNAME=1 # support "tzname", which is defined by system library
304# #	-DHAVE_TZNAME=2 # support and define "tzname"
305# # to the "CFLAGS=" line.  "tzname" is required by POSIX 1988 and later.
306# # If not defined, the code attempts to guess HAVE_TZNAME from other macros.
307# # Warning: unless time_tz is also defined, HAVE_TZNAME=1 can cause
308# # crashes when combined with some platforms' standard libraries,
309# # presumably due to memory allocation issues.
310# #
311# # To omit or support the external variables "timezone" and "daylight", add
312# #	-DUSG_COMPAT=0 # do not support
313# #	-DUSG_COMPAT=1 # support, and variables are defined by system library
314# #	-DUSG_COMPAT=2 # support and define variables
315# # to the "CFLAGS=" line; "timezone" and "daylight" are inspired by
316# # Unix Systems Group code and are required by POSIX 2008 (with XSI) and later.
317# # If not defined, the code attempts to guess USG_COMPAT from other macros.
318# #
319# # To support the external variable "altzone", add
320# #	-DALTZONE=0 # do not support
321# #	-DALTZONE=1 # support "altzone", which is defined by system library
322# #	-DALTZONE=2 # support and define "altzone"
323# # to the end of the "CFLAGS=" line; although "altzone" appeared in
324# # System V Release 3.1 it has not been standardized.
325# # If not defined, the code attempts to guess ALTZONE from other macros.
326#
327# If you want functions that were inspired by early versions of X3J11's work,
328# add
329#	-DSTD_INSPIRED
330# to the end of the "CFLAGS=" line.  This arranges for the functions
331# "offtime", "timelocal", "timegm", "timeoff",
332# "posix2time", and "time2posix" to be added to the time conversion library.
333# "offtime" is like "gmtime" except that it accepts a second (long) argument
334# that gives an offset to add to the time_t when converting it.
335# "timelocal" is equivalent to "mktime".
336# "timegm" is like "timelocal" except that it turns a struct tm into
337# a time_t using UT (rather than local time as "timelocal" does).
338# "timeoff" is like "timegm" except that it accepts a second (long) argument
339# that gives an offset to use when converting to a time_t.
340# "posix2time" and "time2posix" are described in an included manual page.
341# X3J11's work does not describe any of these functions.
342# These functions may well disappear in future releases of the time
343# conversion package.
344#
345# If you don't want functions that were inspired by NetBSD, add
346#	-DNETBSD_INSPIRED=0
347# to the end of the "CFLAGS=" line.  Otherwise, the functions
348# "localtime_rz", "mktime_z", "tzalloc", and "tzfree" are added to the
349# time library, and if STD_INSPIRED is also defined the functions
350# "posix2time_z" and "time2posix_z" are added as well.
351# The functions ending in "_z" (or "_rz") are like their unsuffixed
352# (or suffixed-by-"_r") counterparts, except with an extra first
353# argument of opaque type timezone_t that specifies the timezone.
354# "tzalloc" allocates a timezone_t value, and "tzfree" frees it.
355#
356# If you want to allocate state structures in localtime, add
357#	-DALL_STATE
358# to the end of the "CFLAGS=" line.  Storage is obtained by calling malloc.
359#
360# NIST-PCTS:151-2, Version 1.4, (1993-12-03) is a test suite put
361# out by the National Institute of Standards and Technology
362# which claims to test C and Posix conformance.  If you want to pass PCTS, add
363#	-DPCTS
364# to the end of the "CFLAGS=" line.
365#
366# If you want strict compliance with XPG4 as of 1994-04-09, add
367#	-DXPG4_1994_04_09
368# to the end of the "CFLAGS=" line.  This causes "strftime" to always return
369# 53 as a week number (rather than 52 or 53) for January days before
370# January's first Monday when a "%V" format is used and January 1
371# falls on a Friday, Saturday, or Sunday.
372
373CFLAGS=
374
375# Linker flags.  Default to $(LFLAGS) for backwards compatibility
376# to release 2012h and earlier.
377
378LDFLAGS=	$(LFLAGS)
379
380# For leap seconds, this Makefile uses LEAPSECONDS='-L leapseconds' in
381# submake command lines.  The default is no leap seconds.
382
383LEAPSECONDS=
384
385# The zic command and its arguments.
386
387zic=		./zic
388ZIC=		$(zic) $(ZFLAGS)
389
390# To shrink the size of installed TZif files,
391# append "-r @N" to omit data before N-seconds-after-the-Epoch.
392# To grow the files and work around older application bugs, append "-b fat";
393# see ZIC_BLOAT_DEFAULT above.
394# See the zic man page for more about -b and -r.
395ZFLAGS=
396
397# How to use zic to install TZif files.
398
399ZIC_INSTALL=	$(ZIC) -d '$(DESTDIR)$(TZDIR)' $(LEAPSECONDS)
400
401# The name of a Posix-compliant 'awk' on your system.
402# mawk 1.3.3 and Solaris 10 /usr/bin/awk do not work.
403# Also, it is better (though not essential) if 'awk' supports UTF-8,
404# and unfortunately mawk and busybox awk do not support UTF-8.
405# Try AWK=gawk or AWK=nawk if your awk has the abovementioned problems.
406AWK=		awk
407
408# The full path name of a Posix-compliant shell, preferably one that supports
409# the Korn shell's 'select' statement as an extension.
410# These days, Bash is the most popular.
411# It should be OK to set this to /bin/sh, on platforms where /bin/sh
412# lacks 'select' or doesn't completely conform to Posix, but /bin/bash
413# is typically nicer if it works.
414KSHELL=		/bin/bash
415
416# Name of curl <https://curl.haxx.se/>, used for HTML validation.
417CURL=		curl
418
419# Name of GNU Privacy Guard <https://gnupg.org/>, used to sign distributions.
420GPG=		gpg
421
422# This expensive test requires USE_LTZ.
423# To suppress it, define this macro to be empty.
424CHECK_TIME_T_ALTERNATIVES = check_time_t_alternatives
425
426# SAFE_CHAR is a regular expression that matches a safe character.
427# Some parts of this distribution are limited to safe characters;
428# others can use any UTF-8 character.
429# For now, the safe characters are a safe subset of ASCII.
430# The caller must set the shell variable 'sharp' to the character '#',
431# since Makefile macros cannot contain '#'.
432# TAB_CHAR is a single tab character, in single quotes.
433TAB_CHAR=	'	'
434SAFE_CHARSET1=	$(TAB_CHAR)' !\"'$$sharp'$$%&'\''()*+,./0123456789:;<=>?@'
435SAFE_CHARSET2=	'ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\^_`'
436SAFE_CHARSET3=	'abcdefghijklmnopqrstuvwxyz{|}~'
437SAFE_CHARSET=	$(SAFE_CHARSET1)$(SAFE_CHARSET2)$(SAFE_CHARSET3)
438SAFE_CHAR=	'[]'$(SAFE_CHARSET)'-]'
439
440# These characters are Latin-1, and so are likely to be displayable
441# even in editors with limited character sets.
442UNUSUAL_OK_LATIN_1 = «°±»½¾×
443# This IPA symbol is represented in Unicode as the composition of
444# U+0075 and U+032F, and U+032F is not considered alphabetic by some
445# grep implementations that do not grok composition.
446UNUSUAL_OK_IPA = u̯
447# Non-ASCII non-letters that OK_CHAR allows, as these characters are
448# useful in commentary.
449UNUSUAL_OK_CHARSET= $(UNUSUAL_OK_LATIN_1)$(UNUSUAL_OK_IPA)
450
451# OK_CHAR matches any character allowed in the distributed files.
452# This is the same as SAFE_CHAR, except that UNUSUAL_OK_CHARSET and
453# multibyte letters are also allowed so that commentary can contain a
454# few safe symbols and people's names and can quote non-English sources.
455# Other non-letters are limited to ASCII renderings for the
456# convenience of maintainers using XEmacs 21.5.34, which by default
457# mishandles Unicode characters U+0100 and greater.
458OK_CHAR=	'[][:alpha:]$(UNUSUAL_OK_CHARSET)'$(SAFE_CHARSET)'-]'
459
460# SAFE_LINE matches a line of safe characters.
461# SAFE_SHARP_LINE is similar, except any OK character can follow '#';
462# this is so that comments can contain non-ASCII characters.
463# OK_LINE matches a line of OK characters.
464SAFE_LINE=	'^'$(SAFE_CHAR)'*$$'
465SAFE_SHARP_LINE='^'$(SAFE_CHAR)'*('$$sharp$(OK_CHAR)'*)?$$'
466OK_LINE=	'^'$(OK_CHAR)'*$$'
467
468# Flags to give 'tar' when making a distribution.
469# Try to use flags appropriate for GNU tar.
470GNUTARFLAGS= --format=pax --pax-option='delete=atime,delete=ctime' \
471  --numeric-owner --owner=0 --group=0 \
472  --mode=go+u,go-w --sort=name
473TARFLAGS=	`if tar $(GNUTARFLAGS) --version >/dev/null 2>&1; \
474		 then echo $(GNUTARFLAGS); \
475		 else :; \
476		 fi`
477
478# Flags to give 'gzip' when making a distribution.
479GZIPFLAGS=	-9n
480
481###############################################################################
482
483#MAKE=		make
484
485cc=		cc
486CC=		$(cc) -DTZDIR='"$(TZDIR)"'
487
488AR=		ar
489
490# ':' on typical hosts; 'ranlib' on the ancient hosts that still need ranlib.
491RANLIB=		:
492
493TZCOBJS=	zic.o
494TZDOBJS=	zdump.o localtime.o asctime.o strftime.o
495DATEOBJS=	date.o localtime.o strftime.o asctime.o
496LIBSRCS=	localtime.c asctime.c difftime.c strftime.c
497LIBOBJS=	localtime.o asctime.o difftime.o strftime.o
498HEADERS=	tzfile.h private.h
499NONLIBSRCS=	zic.c zdump.c
500NEWUCBSRCS=	date.c
501SOURCES=	$(HEADERS) $(LIBSRCS) $(NONLIBSRCS) $(NEWUCBSRCS) \
502			tzselect.ksh workman.sh
503MANS=		newctime.3 newstrftime.3 newtzset.3 time2posix.3 \
504			tzfile.5 tzselect.8 zic.8 zdump.8
505MANTXTS=	newctime.3.txt newstrftime.3.txt newtzset.3.txt \
506			time2posix.3.txt \
507			tzfile.5.txt tzselect.8.txt zic.8.txt zdump.8.txt \
508			date.1.txt
509COMMON=		calendars CONTRIBUTING LICENSE Makefile \
510			NEWS README SECURITY theory.html version
511WEB_PAGES=	tz-art.html tz-how-to.html tz-link.html
512CHECK_WEB_PAGES=check_theory.html check_tz-art.html \
513			check_tz-how-to.html check_tz-link.html
514DOCS=		$(MANS) date.1 $(MANTXTS) $(WEB_PAGES)
515PRIMARY_YDATA=	africa antarctica asia australasia \
516		europe northamerica southamerica
517YDATA=		$(PRIMARY_YDATA) etcetera
518NDATA=		factory
519TDATA_TO_CHECK=	$(YDATA) $(NDATA) backward
520TDATA=		$(YDATA) $(NDATA) $(BACKWARD)
521ZONETABLES=	zone1970.tab zone.tab
522TABDATA=	iso3166.tab $(TZDATA_TEXT) $(ZONETABLES)
523LEAP_DEPS=	leapseconds.awk leap-seconds.list
524TZDATA_ZI_DEPS=	ziguard.awk zishrink.awk version $(TDATA) $(PACKRATDATA)
525DSTDATA_ZI_DEPS= ziguard.awk $(TDATA) $(PACKRATDATA)
526DATA=		$(TDATA_TO_CHECK) backzone iso3166.tab leap-seconds.list \
527			leapseconds $(ZONETABLES)
528AWK_SCRIPTS=	checklinks.awk checktab.awk leapseconds.awk \
529			ziguard.awk zishrink.awk
530MISC=		$(AWK_SCRIPTS) zoneinfo2tdf.pl
531TZS_YEAR=	2050
532TZS_CUTOFF_FLAG=	-c $(TZS_YEAR)
533TZS=		to$(TZS_YEAR).tzs
534TZS_NEW=	to$(TZS_YEAR)new.tzs
535TZS_DEPS=	$(YDATA) asctime.c localtime.c \
536			private.h tzfile.h zdump.c zic.c
537# EIGHT_YARDS is just a yard short of the whole ENCHILADA.
538EIGHT_YARDS = $(COMMON) $(DOCS) $(SOURCES) $(DATA) $(MISC) tzdata.zi
539ENCHILADA = $(EIGHT_YARDS) $(TZS)
540
541# Consult these files when deciding whether to rebuild the 'version' file.
542# This list is not the same as the output of 'git ls-files', since
543# .gitignore is not distributed.
544VERSION_DEPS= \
545		calendars CONTRIBUTING LICENSE Makefile NEWS README SECURITY \
546		africa antarctica asctime.c asia australasia \
547		backward backzone \
548		checklinks.awk checktab.awk \
549		date.1 date.c difftime.c \
550		etcetera europe factory iso3166.tab \
551		leap-seconds.list leapseconds.awk localtime.c \
552		newctime.3 newstrftime.3 newtzset.3 northamerica \
553		private.h southamerica strftime.c theory.html \
554		time2posix.3 tz-art.html tz-how-to.html tz-link.html \
555		tzfile.5 tzfile.h tzselect.8 tzselect.ksh \
556		workman.sh zdump.8 zdump.c zic.8 zic.c \
557		ziguard.awk zishrink.awk \
558		zone.tab zone1970.tab zoneinfo2tdf.pl
559
560# And for the benefit of csh users on systems that assume the user
561# shell should be used to handle commands in Makefiles. . .
562
563SHELL=		/bin/sh
564
565all:		tzselect zic zdump libtz.a $(TABDATA) \
566		  vanguard.zi main.zi rearguard.zi
567
568ALL:		all date $(ENCHILADA)
569
570install:	all $(DATA) $(REDO) $(MANS)
571		mkdir -p '$(DESTDIR)$(BINDIR)' \
572			'$(DESTDIR)$(ZDUMPDIR)' '$(DESTDIR)$(ZICDIR)' \
573			'$(DESTDIR)$(LIBDIR)' \
574			'$(DESTDIR)$(MANDIR)/man3' '$(DESTDIR)$(MANDIR)/man5' \
575			'$(DESTDIR)$(MANDIR)/man8'
576		$(ZIC_INSTALL) -l $(LOCALTIME) \
577			`case '$(POSIXRULES)' in ?*) echo '-p';; esac \
578			` $(POSIXRULES) \
579			-t '$(DESTDIR)$(TZDEFAULT)'
580		cp -f $(TABDATA) '$(DESTDIR)$(TZDIR)/.'
581		cp tzselect '$(DESTDIR)$(BINDIR)/.'
582		cp zdump '$(DESTDIR)$(ZDUMPDIR)/.'
583		cp zic '$(DESTDIR)$(ZICDIR)/.'
584		cp libtz.a '$(DESTDIR)$(LIBDIR)/.'
585		$(RANLIB) '$(DESTDIR)$(LIBDIR)/libtz.a'
586		cp -f newctime.3 newtzset.3 '$(DESTDIR)$(MANDIR)/man3/.'
587		cp -f tzfile.5 '$(DESTDIR)$(MANDIR)/man5/.'
588		cp -f tzselect.8 zdump.8 zic.8 '$(DESTDIR)$(MANDIR)/man8/.'
589
590INSTALL:	ALL install date.1
591		mkdir -p '$(DESTDIR)$(BINDIR)' '$(DESTDIR)$(MANDIR)/man1'
592		cp date '$(DESTDIR)$(BINDIR)/.'
593		cp -f date.1 '$(DESTDIR)$(MANDIR)/man1/.'
594
595# Calculate version number from git, if available.
596# Otherwise, use $(VERSION) unless it is "unknown" and there is already
597# a 'version' file, in which case reuse the existing 'version' contents
598# and append "-dirty" if the contents do not already end in "-dirty".
599version:	$(VERSION_DEPS)
600		{ (type git) >/dev/null 2>&1 && \
601		  V=`git describe --match '[0-9][0-9][0-9][0-9][a-z]*' \
602				--abbrev=7 --dirty` || \
603		  if test '$(VERSION)' = unknown && V=`cat $@`; then \
604		    case $$V in *-dirty);; *) V=$$V-dirty;; esac; \
605		  else \
606		    V='$(VERSION)'; \
607		  fi; } && \
608		printf '%s\n' "$$V" >$@.out
609		mv $@.out $@
610
611# These files can be tailored by setting BACKWARD and PACKRATDATA.
612vanguard.zi main.zi rearguard.zi: $(DSTDATA_ZI_DEPS)
613		$(AWK) -v DATAFORM=`expr $@ : '\(.*\).zi'` -f ziguard.awk \
614		  $(TDATA) $(PACKRATDATA) >$@.out
615		mv $@.out $@
616# This file has a version comment that attempts to capture any tailoring
617# via BACKWARD, DATAFORM, PACKRATDATA, and REDO.
618tzdata.zi:	$(DATAFORM).zi version zishrink.awk
619		version=`sed 1q version` && \
620		  LC_ALL=C $(AWK) \
621		    -v dataform='$(DATAFORM)' \
622		    -v deps='$(DSTDATA_ZI_DEPS) zishrink.awk' \
623		    -v redo='$(REDO)' \
624		    -v version="$$version" \
625		    -f zishrink.awk \
626		    $(DATAFORM).zi >$@.out
627		mv $@.out $@
628
629version.h:	version
630		VERSION=`cat version` && printf '%s\n' \
631		  'static char const PKGVERSION[]="($(PACKAGE)) ";' \
632		  "static char const TZVERSION[]=\"$$VERSION\";" \
633		  'static char const REPORT_BUGS_TO[]="$(BUGEMAIL)";' \
634		  >$@.out
635		mv $@.out $@
636
637zdump:		$(TZDOBJS)
638		$(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZDOBJS) $(LDLIBS)
639
640zic:		$(TZCOBJS)
641		$(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZCOBJS) $(LDLIBS)
642
643leapseconds:	$(LEAP_DEPS)
644		$(AWK) -v EXPIRES_LINE=$(EXPIRES_LINE) \
645		  -f leapseconds.awk leap-seconds.list >$@.out
646		mv $@.out $@
647
648# Arguments to pass to submakes of install_data.
649# They can be overridden by later submake arguments.
650INSTALLARGS = \
651 BACKWARD='$(BACKWARD)' \
652 DESTDIR='$(DESTDIR)' \
653 LEAPSECONDS='$(LEAPSECONDS)' \
654 PACKRATDATA='$(PACKRATDATA)' \
655 TZDEFAULT='$(TZDEFAULT)' \
656 TZDIR='$(TZDIR)' \
657 ZIC='$(ZIC)'
658
659INSTALL_DATA_DEPS = zic leapseconds tzdata.zi
660
661# 'make install_data' installs one set of TZif files.
662install_data: $(INSTALL_DATA_DEPS)
663		$(ZIC_INSTALL) tzdata.zi
664
665posix_only: $(INSTALL_DATA_DEPS)
666		$(MAKE) $(INSTALLARGS) LEAPSECONDS= install_data
667
668right_only: $(INSTALL_DATA_DEPS)
669		$(MAKE) $(INSTALLARGS) LEAPSECONDS='-L leapseconds' \
670			install_data
671
672# In earlier versions of this makefile, the other two directories were
673# subdirectories of $(TZDIR).  However, this led to configuration errors.
674# For example, with posix_right under the earlier scheme,
675# TZ='right/Australia/Adelaide' got you localtime with leap seconds,
676# but gmtime without leap seconds, which led to problems with applications
677# like sendmail that subtract gmtime from localtime.
678# Therefore, the other two directories are now siblings of $(TZDIR).
679# You must replace all of $(TZDIR) to switch from not using leap seconds
680# to using them, or vice versa.
681right_posix:	right_only
682		rm -fr '$(DESTDIR)$(TZDIR)-leaps'
683		ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-leaps' || \
684		  $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only
685		$(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only
686
687posix_right:	posix_only
688		rm -fr '$(DESTDIR)$(TZDIR)-posix'
689		ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-posix' || \
690		  $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only
691		$(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only
692
693# This obsolescent rule is present for backwards compatibility with
694# tz releases 2014g through 2015g.  It should go away eventually.
695posix_packrat: $(INSTALL_DATA_DEPS)
696		$(MAKE) $(INSTALLARGS) PACKRATDATA=backzone posix_only
697
698zones:		$(REDO)
699
700# dummy.zd is not a real file; it is mentioned here only so that the
701# top-level 'make' does not have a syntax error.
702ZDS = dummy.zd
703# Rule used only by submakes invoked by the $(TZS_NEW) rule.
704# It is separate so that GNU 'make -j' can run instances in parallel.
705$(ZDS): zdump
706		./zdump -i $(TZS_CUTOFF_FLAG) '$(wd)/'$$(expr $@ : '\(.*\).zd') \
707		  >$@
708
709TZS_NEW_DEPS = tzdata.zi zdump zic
710$(TZS_NEW): $(TZS_NEW_DEPS)
711		rm -fr tzs$(TZS_YEAR).dir
712		mkdir tzs$(TZS_YEAR).dir
713		$(zic) -d tzs$(TZS_YEAR).dir tzdata.zi
714		$(AWK) '/^L/{print "Link\t" $$2 "\t" $$3}' \
715		   tzdata.zi | LC_ALL=C sort >$@.out
716		wd=`pwd` && \
717		x=`$(AWK) '/^Z/{print "tzs$(TZS_YEAR).dir/" $$2 ".zd"}' \
718				tzdata.zi \
719			| LC_ALL=C sort -t . -k 2,2` && \
720		set x $$x && \
721		shift && \
722		ZDS=$$* && \
723		$(MAKE) wd="$$wd" TZS_CUTOFF_FLAG="$(TZS_CUTOFF_FLAG)" \
724		  ZDS="$$ZDS" $$ZDS && \
725		sed 's,^TZ=".*\.dir/,TZ=",' $$ZDS >>$@.out
726		rm -fr tzs$(TZS_YEAR).dir
727		mv $@.out $@
728
729# If $(TZS) exists but 'make check_tzs' fails, a maintainer should inspect the
730# failed output and fix the inconsistency, perhaps by running 'make force_tzs'.
731$(TZS):
732		touch $@
733
734force_tzs:	$(TZS_NEW)
735		cp $(TZS_NEW) $(TZS)
736
737libtz.a:	$(LIBOBJS)
738		rm -f $@
739		$(AR) -rc $@ $(LIBOBJS)
740		$(RANLIB) $@
741
742date:		$(DATEOBJS)
743		$(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(DATEOBJS) $(LDLIBS)
744
745tzselect:	tzselect.ksh version
746		VERSION=`cat version` && sed \
747			-e 's|#!/bin/bash|#!$(KSHELL)|g' \
748			-e 's|AWK=[^}]*|AWK='\''$(AWK)'\''|g' \
749			-e 's|\(PKGVERSION\)=.*|\1='\''($(PACKAGE)) '\''|' \
750			-e 's|\(REPORT_BUGS_TO\)=.*|\1=$(BUGEMAIL)|' \
751			-e 's|TZDIR=[^}]*|TZDIR=$(TZDIR)|' \
752			-e 's|\(TZVERSION\)=.*|\1='"$$VERSION"'|' \
753			<$@.ksh >$@.out
754		chmod +x $@.out
755		mv $@.out $@
756
757check:		check_character_set check_white_space check_links \
758		  check_name_lengths check_sorted \
759		  check_tables check_web check_zishrink check_tzs
760
761check_character_set: $(ENCHILADA)
762	test ! '$(UTF8_LOCALE)' || \
763	! printf 'A\304\200B\n' | \
764	  LC_ALL='$(UTF8_LOCALE)' grep -q '^A.B$$' >/dev/null 2>&1 || { \
765		LC_ALL='$(UTF8_LOCALE)' && export LC_ALL && \
766		sharp='#' && \
767		! grep -Env $(SAFE_LINE) $(MANS) date.1 $(MANTXTS) \
768			$(MISC) $(SOURCES) $(WEB_PAGES) \
769			CONTRIBUTING LICENSE README SECURITY \
770			version tzdata.zi && \
771		! grep -Env $(SAFE_LINE)'|^UNUSUAL_OK_'$(OK_CHAR)'*$$' \
772			Makefile && \
773		! grep -Env $(SAFE_SHARP_LINE) $(TDATA_TO_CHECK) backzone \
774			leapseconds zone.tab && \
775		! grep -Env $(OK_LINE) $(ENCHILADA); \
776	}
777	touch $@
778
779check_white_space: $(ENCHILADA)
780		patfmt=' \t|[\f\r\v]' && pat=`printf "$$patfmt\\n"` && \
781		! grep -En "$$pat" \
782			$$(ls $(ENCHILADA) | grep -Fvx leap-seconds.list)
783		! grep -n '[[:space:]]$$' \
784			$$(ls $(ENCHILADA) | grep -Fvx leap-seconds.list)
785		touch $@
786
787PRECEDES_FILE_NAME = ^(Zone|Link[[:space:]]+[^[:space:]]+)[[:space:]]+
788FILE_NAME_COMPONENT_TOO_LONG = \
789  $(PRECEDES_FILE_NAME)[^[:space:]]*[^/[:space:]]{15}
790
791check_name_lengths: $(TDATA_TO_CHECK) backzone
792		! grep -En '$(FILE_NAME_COMPONENT_TOO_LONG)' \
793			$(TDATA_TO_CHECK) backzone
794		touch $@
795
796CHECK_CC_LIST = { n = split($$1,a,/,/); for (i=2; i<=n; i++) print a[1], a[i]; }
797
798check_sorted: backward backzone iso3166.tab zone.tab zone1970.tab
799		$(AWK) '/^Link/ {print $$3}' backward | LC_ALL=C sort -cu
800		$(AWK) '/^Zone/ {print $$2}' backzone | LC_ALL=C sort -cu
801		touch $@
802
803check_links:	checklinks.awk $(TDATA_TO_CHECK) tzdata.zi
804		$(AWK) -f checklinks.awk $(TDATA_TO_CHECK)
805		$(AWK) -f checklinks.awk tzdata.zi
806		touch $@
807
808check_tables:	checktab.awk $(YDATA) backward $(ZONETABLES)
809		for tab in $(ZONETABLES); do \
810		  test "$$tab" = zone.tab && links='$(BACKWARD)' || links=''; \
811		  $(AWK) -f checktab.awk -v zone_table=$$tab $(YDATA) $$links \
812		    || exit; \
813		done
814		touch $@
815
816check_tzs:	$(TZS) $(TZS_NEW)
817		if test -s $(TZS); then \
818		  diff -u $(TZS) $(TZS_NEW); \
819		else \
820		  cp $(TZS_NEW) $(TZS); \
821		fi
822		touch $@
823
824check_web:	$(CHECK_WEB_PAGES)
825check_theory.html: theory.html
826check_tz-art.html: tz-art.html
827check_tz-how-to.html: tz-how-to.html
828check_tz-link.html: tz-link.html
829check_theory.html check_tz-art.html check_tz-how-to.html check_tz-link.html:
830		$(CURL) -sS --url https://validator.w3.org/nu/ -F out=gnu \
831		    -F file=@$$(expr $@ : 'check_\(.*\)') -o $@.out && \
832		  test ! -s $@.out || { cat $@.out; exit 1; }
833		mv $@.out $@
834
835# Check that zishrink.awk does not alter the data, and that ziguard.awk
836# preserves main-format data.
837check_zishrink: check_zishrink_posix check_zishrink_right
838check_zishrink_posix check_zishrink_right: \
839  zic leapseconds $(PACKRATDATA) $(TDATA) $(DATAFORM).zi tzdata.zi
840		rm -fr $@.dir $@-t.dir $@-shrunk.dir
841		mkdir $@.dir $@-t.dir $@-shrunk.dir
842		case $@ in \
843		  *_right) leap='-L leapseconds';; \
844		  *) leap=;; \
845		esac && \
846		  $(ZIC) $$leap -d $@.dir $(DATAFORM).zi && \
847		  $(ZIC) $$leap -d $@-shrunk.dir tzdata.zi && \
848		  case $(DATAFORM) in \
849		    main) \
850		      $(ZIC) $$leap -d $@-t.dir $(TDATA) && \
851		      $(AWK) '/^Rule/' $(TDATA) | \
852			$(ZIC) $$leap -d $@-t.dir - $(PACKRATDATA) && \
853		      diff -r $@.dir $@-t.dir;; \
854		  esac
855		diff -r $@.dir $@-shrunk.dir
856		rm -fr $@.dir $@-t.dir $@-shrunk.dir
857		touch $@
858
859clean_misc:
860		rm -fr check_*.dir
861		rm -f *.o *.out $(TIME_T_ALTERNATIVES) \
862		  check_* core typecheck_* \
863		  date tzselect version.h zdump zic libtz.a
864clean:		clean_misc
865		rm -fr *.dir tzdb-*/
866		rm -f *.zi $(TZS_NEW)
867
868maintainer-clean: clean
869		@echo 'This command is intended for maintainers to use; it'
870		@echo 'deletes files that may need special tools to rebuild.'
871		rm -f leapseconds version $(MANTXTS) $(TZS) *.asc *.tar.*
872
873names:
874		@echo $(ENCHILADA)
875
876public:		check check_public $(CHECK_TIME_T_ALTERNATIVES) \
877		tarballs signatures
878
879date.1.txt:	date.1
880newctime.3.txt:	newctime.3
881newstrftime.3.txt: newstrftime.3
882newtzset.3.txt:	newtzset.3
883time2posix.3.txt: time2posix.3
884tzfile.5.txt:	tzfile.5
885tzselect.8.txt:	tzselect.8
886zdump.8.txt:	zdump.8
887zic.8.txt:	zic.8
888
889$(MANTXTS):	workman.sh
890		LC_ALL=C sh workman.sh `expr $@ : '\(.*\)\.txt$$'` >$@.out
891		mv $@.out $@
892
893# Set file timestamps deterministically if possible,
894# so that tarballs containing the timestamps are reproducible.
895#
896# '$(SET_TIMESTAMP_N) N DEST A B C ...' sets the timestamp of the
897# file DEST to the maximum of the timestamps of the files A B C ...,
898# plus N if GNU ls and touch are available.
899SET_TIMESTAMP_N = sh -c '\
900  n=$$0 dest=$$1; shift; \
901  touch -cmr `ls -t "$$@" | sed 1q` "$$dest" && \
902  if test $$n != 0 && \
903     lsout=`ls -n --time-style="+%s" "$$dest" 2>/dev/null`; then \
904    set x $$lsout && \
905    touch -cmd @`expr $$7 + $$n` "$$dest"; \
906  else :; fi'
907# If DEST depends on A B C ... in this Makefile, callers should use
908# $(SET_TIMESTAMP_DEP) DEST A B C ..., for the benefit of any
909# downstream 'make' that considers equal timestamps to be out of date.
910# POSIX allows this 'make' behavior, and HP-UX 'make' does it.
911# If all that matters is that the timestamp be reproducible
912# and plausible, use $(SET_TIMESTAMP).
913SET_TIMESTAMP = $(SET_TIMESTAMP_N) 0
914SET_TIMESTAMP_DEP = $(SET_TIMESTAMP_N) 1
915
916# Set the timestamps to those of the git repository, if available,
917# and if the files have not changed since then.
918# This uses GNU 'ls --time-style=+%s', which outputs the seconds count,
919# and GNU 'touch -d@N FILE', where N is the number of seconds since 1970.
920# If git or GNU is absent, don't bother to sync with git timestamps.
921# Also, set the timestamp of each prebuilt file like 'leapseconds'
922# to be the maximum of the files it depends on.
923set-timestamps.out: $(EIGHT_YARDS)
924		rm -f $@
925		if (type git) >/dev/null 2>&1 && \
926		   files=`git ls-files $(EIGHT_YARDS)` && \
927		   touch -md @1 test.out; then \
928		  rm -f test.out && \
929		  for file in $$files; do \
930		    if git diff --quiet $$file; then \
931		      time=`git log -1 --format='tformat:%ct' $$file` && \
932		      touch -cmd @$$time $$file; \
933		    else \
934		      echo >&2 "$$file: warning: does not match repository"; \
935		    fi || exit; \
936		  done; \
937		fi
938		$(SET_TIMESTAMP_DEP) leapseconds $(LEAP_DEPS)
939		for file in `ls $(MANTXTS) | sed 's/\.txt$$//'`; do \
940		  $(SET_TIMESTAMP_DEP) $$file.txt $$file workman.sh || \
941		    exit; \
942		done
943		$(SET_TIMESTAMP_DEP) version $(VERSION_DEPS)
944		$(SET_TIMESTAMP_DEP) tzdata.zi $(TZDATA_ZI_DEPS)
945		touch $@
946set-tzs-timestamp.out: $(TZS)
947		$(SET_TIMESTAMP_DEP) $(TZS) $(TZS_DEPS)
948		touch $@
949
950# The zics below ensure that each data file can stand on its own.
951# We also do an all-files run to catch links to links.
952
953check_public: $(VERSION_DEPS)
954		rm -fr public.dir
955		mkdir public.dir
956		ln $(VERSION_DEPS) public.dir
957		cd public.dir && $(MAKE) CFLAGS='$(GCC_DEBUG_FLAGS)' ALL
958		for i in $(TDATA_TO_CHECK) public.dir/tzdata.zi \
959		    public.dir/vanguard.zi public.dir/main.zi \
960		    public.dir/rearguard.zi; \
961		do \
962		  public.dir/zic -v -d public.dir/zoneinfo $$i 2>&1 || exit; \
963		done
964		public.dir/zic -v -d public.dir/zoneinfo-all $(TDATA_TO_CHECK)
965		:
966		: Also check 'backzone' syntax.
967		rm public.dir/main.zi
968		cd public.dir && $(MAKE) PACKRATDATA=backzone main.zi
969		public.dir/zic -d public.dir/zoneinfo main.zi
970		:
971		rm -fr public.dir
972		touch $@
973
974# Check that the code works under various alternative
975# implementations of time_t.
976check_time_t_alternatives: $(TIME_T_ALTERNATIVES)
977$(TIME_T_ALTERNATIVES_TAIL): $(TIME_T_ALTERNATIVES_HEAD)
978$(TIME_T_ALTERNATIVES): $(VERSION_DEPS)
979		rm -fr $@.dir
980		mkdir $@.dir
981		ln $(VERSION_DEPS) $@.dir
982		case $@ in \
983		  int*32_t) range=-2147483648,2147483648;; \
984		  u*) range=0,4294967296;; \
985		  *) range=-4294967296,4294967296;; \
986		esac && \
987		wd=`pwd` && \
988		zones=`$(AWK) '/^[^#]/ { print $$3 }' <zone1970.tab` && \
989		if test $@ = $(TIME_T_ALTERNATIVES_HEAD); then \
990		  range_target=; \
991		else \
992		  range_target=to$$range.tzs; \
993		fi && \
994		(cd $@.dir && \
995		  $(MAKE) TOPDIR="$$wd/$@.dir" \
996		    CFLAGS='$(CFLAGS) -Dtime_tz='"'$@'" \
997		    REDO='$(REDO)' \
998			D=$$wd/$@.dir \
999		    TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \
1000		    install $$range_target) && \
1001		test $@ = $(TIME_T_ALTERNATIVES_HEAD) || { \
1002		  (cd $(TIME_T_ALTERNATIVES_HEAD).dir && \
1003		    $(MAKE) TOPDIR="$$wd/$@.dir" \
1004		      TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \
1005			D=$$wd/$@.dir \
1006		      to$$range.tzs) && \
1007		  diff -u $(TIME_T_ALTERNATIVES_HEAD).dir/to$$range.tzs \
1008			  $@.dir/to$$range.tzs && \
1009		  if diff -q Makefile Makefile 2>/dev/null; then \
1010		    quiet_option='-q'; \
1011		  else \
1012		    quiet_option=''; \
1013		  fi && \
1014		    diff $$quiet_option -r $(TIME_T_ALTERNATIVES_HEAD).dir/etc \
1015					   $@.dir/etc && \
1016		    diff $$quiet_option -r \
1017		      $(TIME_T_ALTERNATIVES_HEAD).dir/usr/share \
1018		      $@.dir/usr/share; \
1019		}
1020		touch $@
1021
1022TRADITIONAL_ASC = \
1023  tzcode$(VERSION).tar.gz.asc \
1024  tzdata$(VERSION).tar.gz.asc
1025REARGUARD_ASC = \
1026  tzdata$(VERSION)-rearguard.tar.gz.asc
1027ALL_ASC = $(TRADITIONAL_ASC) $(REARGUARD_ASC) \
1028  tzdb-$(VERSION).tar.lz.asc
1029
1030tarballs rearguard_tarballs traditional_tarballs \
1031signatures rearguard_signatures traditional_signatures: \
1032  version set-timestamps.out rearguard.zi
1033		VERSION=`cat version` && \
1034		$(MAKE) AWK='$(AWK)' VERSION="$$VERSION" $@_version
1035
1036# These *_version rules are intended for use if VERSION is set by some
1037# other means.  Ordinarily these rules are used only by the above
1038# non-_version rules, which set VERSION on the 'make' command line.
1039tarballs_version: traditional_tarballs_version rearguard_tarballs_version \
1040  tzdb-$(VERSION).tar.lz
1041rearguard_tarballs_version: \
1042  tzdata$(VERSION)-rearguard.tar.gz
1043traditional_tarballs_version: \
1044  tzcode$(VERSION).tar.gz tzdata$(VERSION).tar.gz
1045signatures_version: $(ALL_ASC)
1046rearguard_signatures_version: $(REARGUARD_ASC)
1047traditional_signatures_version: $(TRADITIONAL_ASC)
1048
1049tzcode$(VERSION).tar.gz: set-timestamps.out
1050		LC_ALL=C && export LC_ALL && \
1051		tar $(TARFLAGS) -cf - \
1052		    $(COMMON) $(DOCS) $(SOURCES) | \
1053		  gzip $(GZIPFLAGS) >$@.out
1054		mv $@.out $@
1055
1056tzdata$(VERSION).tar.gz: set-timestamps.out
1057		LC_ALL=C && export LC_ALL && \
1058		tar $(TARFLAGS) -cf - $(COMMON) $(DATA) $(MISC) | \
1059		  gzip $(GZIPFLAGS) >$@.out
1060		mv $@.out $@
1061
1062tzdata$(VERSION)-rearguard.tar.gz: rearguard.zi set-timestamps.out
1063		rm -fr tzdata$(VERSION)-rearguard.dir
1064		mkdir tzdata$(VERSION)-rearguard.dir
1065		ln $(COMMON) $(DATA) $(MISC) tzdata$(VERSION)-rearguard.dir
1066		cd tzdata$(VERSION)-rearguard.dir && \
1067		  rm -f $(TDATA) $(PACKRATDATA) version
1068		for f in $(TDATA) $(PACKRATDATA); do \
1069		  rearf=tzdata$(VERSION)-rearguard.dir/$$f; \
1070		  $(AWK) -v DATAFORM=rearguard -f ziguard.awk $$f >$$rearf && \
1071		  $(SET_TIMESTAMP_DEP) $$rearf ziguard.awk $$f || exit; \
1072		done
1073		sed '1s/$$/-rearguard/' \
1074		  <version >tzdata$(VERSION)-rearguard.dir/version
1075		: The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier.
1076		TZ=UTC0 touch -mt 202010122253.00 \
1077		  tzdata$(VERSION)-rearguard.dir/pacificnew
1078		touch -cmr version tzdata$(VERSION)-rearguard.dir/version
1079		LC_ALL=C && export LC_ALL && \
1080		  (cd tzdata$(VERSION)-rearguard.dir && \
1081		   tar $(TARFLAGS) -cf - \
1082			$(COMMON) $(DATA) $(MISC) pacificnew | \
1083		     gzip $(GZIPFLAGS)) >$@.out
1084		mv $@.out $@
1085
1086tzdb-$(VERSION).tar.lz: set-timestamps.out set-tzs-timestamp.out
1087		rm -fr tzdb-$(VERSION)
1088		mkdir tzdb-$(VERSION)
1089		ln $(ENCHILADA) tzdb-$(VERSION)
1090		$(SET_TIMESTAMP) tzdb-$(VERSION) tzdb-$(VERSION)/*
1091		LC_ALL=C && export LC_ALL && \
1092		tar $(TARFLAGS) -cf - tzdb-$(VERSION) | lzip -9 >$@.out
1093		mv $@.out $@
1094
1095tzcode$(VERSION).tar.gz.asc: tzcode$(VERSION).tar.gz
1096tzdata$(VERSION).tar.gz.asc: tzdata$(VERSION).tar.gz
1097tzdata$(VERSION)-rearguard.tar.gz.asc: tzdata$(VERSION)-rearguard.tar.gz
1098tzdb-$(VERSION).tar.lz.asc: tzdb-$(VERSION).tar.lz
1099$(ALL_ASC):
1100		$(GPG) --armor --detach-sign $?
1101
1102TYPECHECK_CFLAGS = $(CFLAGS) -DTYPECHECK -D__time_t_defined -D_TIME_T
1103typecheck: typecheck_long_long typecheck_unsigned
1104typecheck_long_long typecheck_unsigned: $(VERSION_DEPS)
1105		rm -fr $@.dir
1106		mkdir $@.dir
1107		ln $(VERSION_DEPS) $@.dir
1108		cd $@.dir && \
1109		  case $@ in \
1110		    *_long_long) i="long long";; \
1111		    *_unsigned ) i="unsigned" ;; \
1112		  esac && \
1113		  typecheck_cflags='' && \
1114		  $(MAKE) \
1115		    CFLAGS="$(TYPECHECK_CFLAGS) \"-Dtime_t=$$i\"" \
1116		    TOPDIR="`pwd`" \
1117		    install
1118		$@.dir/zdump -i -c 1970,1971 Europe/Rome
1119		touch $@
1120
1121zonenames:	tzdata.zi
1122		@$(AWK) '/^Z/ { print $$2 } /^L/ { print $$3 }' tzdata.zi
1123
1124asctime.o:	private.h tzfile.h
1125date.o:		private.h
1126difftime.o:	private.h
1127localtime.o:	private.h tzfile.h
1128strftime.o:	private.h tzfile.h
1129zdump.o:	version.h
1130zic.o:		private.h tzfile.h version.h
1131
1132.PHONY: ALL INSTALL all
1133.PHONY: check check_time_t_alternatives
1134.PHONY: check_web check_zishrink
1135.PHONY: clean clean_misc dummy.zd force_tzs
1136.PHONY: install install_data maintainer-clean names
1137.PHONY: posix_only posix_packrat posix_right public
1138.PHONY: rearguard_signatures rearguard_signatures_version
1139.PHONY: rearguard_tarballs rearguard_tarballs_version
1140.PHONY: right_only right_posix signatures signatures_version
1141.PHONY: tarballs tarballs_version
1142.PHONY: traditional_signatures traditional_signatures_version
1143.PHONY: traditional_tarballs traditional_tarballs_version
1144.PHONY: typecheck
1145.PHONY: zonenames zones
1146.PHONY: $(ZDS)
1147