xref: /freebsd/contrib/tzdata/Makefile (revision 46226b0162ba03986b1de2c790804b37dd8e64d6)
189abb9f8SPhilip Paeps# Make and install tzdb code and data.
2ba2b2efdSGlen Barber# This file is in the public domain, so clarified as of
3ba2b2efdSGlen Barber# 2009-05-17 by Arthur David Olson.
4eebb9c2cSPhilip Paeps# Request POSIX conformance; this must be the first non-comment line.
5eebb9c2cSPhilip Paeps.POSIX:
6e273650fSPhilip Paeps# On older platforms you may need to scrounge for POSIX conformance.
7e273650fSPhilip Paeps# For example, on Solaris 10 (2005) with Sun Studio 12 aka Sun C 5.9 (2007),
8e273650fSPhilip Paeps# use 'PATH=/usr/xpg4/bin:$PATH make CC=c99'.
9eebb9c2cSPhilip Paeps
10eebb9c2cSPhilip Paeps# To affect how this Makefile works, you can run a shell script like this:
11eebb9c2cSPhilip Paeps#
12eebb9c2cSPhilip Paeps#	#!/bin/sh
13e273650fSPhilip Paeps#	make CC='gcc -std=gnu23' "$@"
14eebb9c2cSPhilip Paeps#
15e273650fSPhilip Paeps# This example script is appropriate for a circa 2024 GNU/Linux system
16e273650fSPhilip Paeps# where a non-default setting enables this package's optional use of C23.
17eebb9c2cSPhilip Paeps#
18eebb9c2cSPhilip Paeps# Alternatively, you can simply edit this Makefile to tailor the following
19eebb9c2cSPhilip Paeps# macro definitions.
20eebb9c2cSPhilip Paeps
21eebb9c2cSPhilip Paeps###############################################################################
22eebb9c2cSPhilip Paeps# Start of macros that one plausibly might want to tailor.
23ba2b2efdSGlen Barber
24ba2b2efdSGlen Barber# Package name for the code distribution.
25ba2b2efdSGlen BarberPACKAGE=	tzcode
26ba2b2efdSGlen Barber
27ba2b2efdSGlen Barber# Version number for the distribution, overridden in the 'tarballs' rule below.
28ba2b2efdSGlen BarberVERSION=	unknown
29ba2b2efdSGlen Barber
30ba2b2efdSGlen Barber# Email address for bug reports.
31ba2b2efdSGlen BarberBUGEMAIL=	tz@iana.org
32ba2b2efdSGlen Barber
33ad48359aSPhilip Paeps# DATAFORM selects the data format.
34ad48359aSPhilip Paeps# Available formats represent essentially the same data, albeit
35ad48359aSPhilip Paeps# possibly with minor discrepancies that users are not likely to notice.
36ad48359aSPhilip Paeps# To get new features and the best data right away, use:
3746bee4edSPhilip Paeps#	DATAFORM=	vanguard
3846bee4edSPhilip Paeps# To wait a while before using new features, to give downstream users
3946bee4edSPhilip Paeps# time to upgrade zic (the default), use:
4046bee4edSPhilip Paeps#	DATAFORM=	main
4146bee4edSPhilip Paeps# To wait even longer for new features, use:
4246bee4edSPhilip Paeps#	DATAFORM=	rearguard
4312a899b6SPhilip Paeps# Rearguard users might also want "ZFLAGS = -b fat"; see below.
4446bee4edSPhilip PaepsDATAFORM=		main
4546bee4edSPhilip Paeps
4689abb9f8SPhilip Paeps# Change the line below for your timezone (after finding the one you want in
4789abb9f8SPhilip Paeps# one of the $(TDATA) source files, or adding it to a source file).
48d81c2dd9SPhilip Paeps# Alternatively, if you discover you've got the wrong timezone, you can just
4912a899b6SPhilip Paeps# 'zic -l -' to remove it, or 'zic -l rightzone' to change it.
50ba2b2efdSGlen Barber# Use the command
51ba2b2efdSGlen Barber#	make zonenames
52ba2b2efdSGlen Barber# to get a list of the values you can use for LOCALTIME.
53ba2b2efdSGlen Barber
549f9fc6bbSPhilip PaepsLOCALTIME=	Factory
55ba2b2efdSGlen Barber
56e273650fSPhilip Paeps# The POSIXRULES macro controls interpretation of POSIX-like TZ
57259e2ad7SPhilip Paeps# settings like TZ='EET-2EEST' that lack DST transition rules.
5812a899b6SPhilip Paeps# If POSIXRULES is '-', no template is installed; this is the default.
5912a899b6SPhilip Paeps# Any other value for POSIXRULES is obsolete and should not be relied on, as:
602865ab3fSPhilip Paeps# * It does not work correctly in popular implementations such as GNU/Linux.
6194c2d487SPhilip Paeps# * It does not work even in tzcode, except for historical timestamps
6294c2d487SPhilip Paeps#   that precede the last explicit transition in the POSIXRULES file.
6394c2d487SPhilip Paeps#   Hence it typically does not work for current and future timestamps.
6412a899b6SPhilip Paeps# If, despite the above, you want a template for handling these settings,
6512a899b6SPhilip Paeps# you can change the line below (after finding the timezone you want in the
6612a899b6SPhilip Paeps# one of the $(TDATA) source files, or adding it to a source file).
6712a899b6SPhilip Paeps# Alternatively, if you discover you've got the wrong timezone, you can just
6812a899b6SPhilip Paeps# 'zic -p -' to remove it, or 'zic -p rightzone' to change it.
6912a899b6SPhilip Paeps# Use the command
7012a899b6SPhilip Paeps#	make zonenames
7112a899b6SPhilip Paeps# to get a list of the values you can use for POSIXRULES.
72ba2b2efdSGlen Barber
7312a899b6SPhilip PaepsPOSIXRULES=	-
74ba2b2efdSGlen Barber
75ba2b2efdSGlen Barber# Also see TZDEFRULESTRING below, which takes effect only
76259e2ad7SPhilip Paeps# if POSIXRULES is '-' or if the template file cannot be accessed.
77ba2b2efdSGlen Barber
78ba2b2efdSGlen Barber
79f2fcff28SPhilip Paeps# Installation locations.
80f2fcff28SPhilip Paeps#
81f2fcff28SPhilip Paeps# The defaults are suitable for Debian, except that if REDO is
82f2fcff28SPhilip Paeps# posix_right or right_posix then files that Debian puts under
83f2fcff28SPhilip Paeps# /usr/share/zoneinfo/posix and /usr/share/zoneinfo/right are instead
84f2fcff28SPhilip Paeps# put under /usr/share/zoneinfo-posix and /usr/share/zoneinfo-leaps,
85f2fcff28SPhilip Paeps# respectively.  Problems with the Debian approach are discussed in
86f2fcff28SPhilip Paeps# the commentary for the right_posix rule (below).
87f2fcff28SPhilip Paeps
88f2fcff28SPhilip Paeps# Destination directory, which can be used for staging.
89f2fcff28SPhilip Paeps# 'make DESTDIR=/stage install' installs under /stage (e.g., to
90f2fcff28SPhilip Paeps# /stage/etc/localtime instead of to /etc/localtime).  Files under
91f2fcff28SPhilip Paeps# /stage are not intended to work as-is, but can be copied by hand to
92f2fcff28SPhilip Paeps# the root directory later.  If DESTDIR is empty, 'make install' does
93f2fcff28SPhilip Paeps# not stage, but installs directly into production locations.
94f2fcff28SPhilip PaepsDESTDIR =
95f2fcff28SPhilip Paeps
96f2fcff28SPhilip Paeps# Everything is installed into subdirectories of TOPDIR, and used there.
97f2fcff28SPhilip Paeps# TOPDIR should be empty (meaning the root directory),
98f2fcff28SPhilip Paeps# or a directory name that does not end in "/".
99f2fcff28SPhilip Paeps# TOPDIR should be empty or an absolute name unless you're just testing.
100f2fcff28SPhilip PaepsTOPDIR =
101f2fcff28SPhilip Paeps
102f2fcff28SPhilip Paeps# The default local timezone is taken from the file TZDEFAULT.
103f2fcff28SPhilip PaepsTZDEFAULT = $(TOPDIR)/etc/localtime
104f2fcff28SPhilip Paeps
105f2fcff28SPhilip Paeps# The subdirectory containing installed program and data files, and
106f2fcff28SPhilip Paeps# likewise for installed files that can be shared among architectures.
107f2fcff28SPhilip Paeps# These should be relative file names.
108f2fcff28SPhilip PaepsUSRDIR = usr
109f2fcff28SPhilip PaepsUSRSHAREDIR = $(USRDIR)/share
110ba2b2efdSGlen Barber
111ba2b2efdSGlen Barber# "Compiled" timezone information is placed in the "TZDIR" directory
112ba2b2efdSGlen Barber# (and subdirectories).
1138d7edd17SPhilip Paeps# TZDIR_BASENAME should not contain "/" and should not be ".", ".." or empty.
114ba2b2efdSGlen BarberTZDIR_BASENAME=	zoneinfo
115f2fcff28SPhilip PaepsTZDIR = $(TOPDIR)/$(USRSHAREDIR)/$(TZDIR_BASENAME)
116f2fcff28SPhilip Paeps
117f2fcff28SPhilip Paeps# The "tzselect" and (if you do "make INSTALL") "date" commands go in:
118f2fcff28SPhilip PaepsBINDIR = $(TOPDIR)/$(USRDIR)/bin
119f2fcff28SPhilip Paeps
120f2fcff28SPhilip Paeps# The "zdump" command goes in:
121f2fcff28SPhilip PaepsZDUMPDIR = $(BINDIR)
122f2fcff28SPhilip Paeps
123f2fcff28SPhilip Paeps# The "zic" command goes in:
124f2fcff28SPhilip PaepsZICDIR = $(TOPDIR)/$(USRDIR)/sbin
125f2fcff28SPhilip Paeps
126f2fcff28SPhilip Paeps# Manual pages go in subdirectories of. . .
127f2fcff28SPhilip PaepsMANDIR = $(TOPDIR)/$(USRSHAREDIR)/man
128f2fcff28SPhilip Paeps
129f2fcff28SPhilip Paeps# Library functions are put in an archive in LIBDIR.
130f2fcff28SPhilip PaepsLIBDIR = $(TOPDIR)/$(USRDIR)/lib
131f2fcff28SPhilip Paeps
132ba2b2efdSGlen Barber
13389abb9f8SPhilip Paeps# Types to try, as an alternative to time_t.
13489abb9f8SPhilip PaepsTIME_T_ALTERNATIVES = $(TIME_T_ALTERNATIVES_HEAD) $(TIME_T_ALTERNATIVES_TAIL)
135e273650fSPhilip PaepsTIME_T_ALTERNATIVES_HEAD = int_least64_t.ck
136e273650fSPhilip PaepsTIME_T_ALTERNATIVES_TAIL = int_least32_t.ck uint_least32_t.ck \
137e273650fSPhilip Paeps  uint_least64_t.ck
138ba2b2efdSGlen Barber
139ad48359aSPhilip Paeps# What kind of TZif data files to generate.  (TZif is the binary time
140*46226b01SPhilip Paeps# zone data format that zic generates; see Internet RFC 9636.)
141dc135c6eSBaptiste Daroussin# If you want only POSIX time, with time values interpreted as
142dc135c6eSBaptiste Daroussin# seconds since the epoch (not counting leap seconds), use
143ba2b2efdSGlen Barber#	REDO=		posix_only
1448d7edd17SPhilip Paeps# below.  If you want only "right" time, with values interpreted
145dc135c6eSBaptiste Daroussin# as seconds since the epoch (counting leap seconds), use
146ba2b2efdSGlen Barber#	REDO=		right_only
147ba2b2efdSGlen Barber# below.  If you want both sets of data available, with leap seconds not
148ba2b2efdSGlen Barber# counted normally, use
149ba2b2efdSGlen Barber#	REDO=		posix_right
150ba2b2efdSGlen Barber# below.  If you want both sets of data available, with leap seconds counted
151ba2b2efdSGlen Barber# normally, use
152ba2b2efdSGlen Barber#	REDO=		right_posix
153ba2b2efdSGlen Barber# below.  POSIX mandates that leap seconds not be counted; for compatibility
154dc135c6eSBaptiste Daroussin# with it, use "posix_only" or "posix_right".  Use POSIX time on systems with
155dc135c6eSBaptiste Daroussin# leap smearing; this can work better than unsmeared "right" time with
156dc135c6eSBaptiste Daroussin# applications that are not leap second aware, and is closer to unsmeared
157dc135c6eSBaptiste Daroussin# "right" time than unsmeared POSIX time is (e.g., 0.5 vs 1.0 s max error).
158ba2b2efdSGlen Barber
159ba2b2efdSGlen BarberREDO=		posix_right
160ba2b2efdSGlen Barber
161dd5f96c4SPhilip Paeps# Whether to put an "Expires" line in the leapseconds file.
162dd5f96c4SPhilip Paeps# Use EXPIRES_LINE=1 to put the line in, 0 to omit it.
163dd5f96c4SPhilip Paeps# The EXPIRES_LINE value matters only if REDO's value contains "right".
164dd5f96c4SPhilip Paeps# If you change EXPIRES_LINE, remove the leapseconds file before running "make".
165dd5f96c4SPhilip Paeps# zic's support for the Expires line was introduced in tzdb 2020a,
16694c2d487SPhilip Paeps# and was modified in tzdb 2021b to generate version 4 TZif files.
16794c2d487SPhilip Paeps# EXPIRES_LINE defaults to 0 for now so that the leapseconds file
16894c2d487SPhilip Paeps# can be given to pre-2020a zic implementations and so that TZif files
16994c2d487SPhilip Paeps# built by newer zic implementations can be read by pre-2021b libraries.
170dd5f96c4SPhilip PaepsEXPIRES_LINE=	0
171dd5f96c4SPhilip Paeps
17289abb9f8SPhilip Paeps# To install data in text form that has all the information of the TZif data,
1738d7edd17SPhilip Paeps# (optionally incorporating leap second information), use
1748d7edd17SPhilip Paeps#	TZDATA_TEXT=	tzdata.zi leapseconds
1758d7edd17SPhilip Paeps# To install text data without leap second information (e.g., because
1768d7edd17SPhilip Paeps# REDO='posix_only'), use
1778d7edd17SPhilip Paeps#	TZDATA_TEXT=	tzdata.zi
1788d7edd17SPhilip Paeps# To avoid installing text data, use
1798d7edd17SPhilip Paeps#	TZDATA_TEXT=
1808d7edd17SPhilip Paeps
1818d7edd17SPhilip PaepsTZDATA_TEXT=	leapseconds tzdata.zi
1828d7edd17SPhilip Paeps
1838d7edd17SPhilip Paeps# For backward-compatibility links for old zone names, use
184f2fcff28SPhilip Paeps#	BACKWARD=	backward
1858d7edd17SPhilip Paeps# To omit these links, use
1868d7edd17SPhilip Paeps#	BACKWARD=
1878d7edd17SPhilip Paeps
188f2fcff28SPhilip PaepsBACKWARD=	backward
1898d7edd17SPhilip Paeps
1909f9fc6bbSPhilip Paeps# If you want out-of-scope and often-wrong data from the file 'backzone',
1919f9fc6bbSPhilip Paeps# but only for entries listed in the backward-compatibility file zone.tab, use
192ba2b2efdSGlen Barber#	PACKRATDATA=	backzone
1939f9fc6bbSPhilip Paeps#	PACKRATLIST=	zone.tab
1949f9fc6bbSPhilip Paeps# If you want all the 'backzone' data, use
1959f9fc6bbSPhilip Paeps#	PACKRATDATA=	backzone
1969f9fc6bbSPhilip Paeps#	PACKRATLIST=
197ba2b2efdSGlen Barber# To omit this data, use
198ba2b2efdSGlen Barber#	PACKRATDATA=
1999f9fc6bbSPhilip Paeps#	PACKRATLIST=
200ba2b2efdSGlen Barber
201ba2b2efdSGlen BarberPACKRATDATA=
2029f9fc6bbSPhilip PaepsPACKRATLIST=
203ba2b2efdSGlen Barber
2048d7edd17SPhilip Paeps# The name of a locale using the UTF-8 encoding, used during self-tests.
2058d7edd17SPhilip Paeps# The tests are skipped if the name does not appear to work on this system.
2068d7edd17SPhilip Paeps
2078d7edd17SPhilip PaepsUTF8_LOCALE=	en_US.utf8
2088d7edd17SPhilip Paeps
209ba2b2efdSGlen Barber# Non-default libraries needed to link.
210cf1ad535SPhilip Paeps# On some hosts, this should have -lintl unless CFLAGS has -DHAVE_GETTEXT=0.
211ba2b2efdSGlen BarberLDLIBS=
212ba2b2efdSGlen Barber
213eebb9c2cSPhilip Paeps# Add the following to an uncommented "CFLAGS=" line as needed
214eebb9c2cSPhilip Paeps# to override defaults specified in the source code or by the system.
215eebb9c2cSPhilip Paeps# "-DFOO" is equivalent to "-DFOO=1".
2168d7edd17SPhilip Paeps#  -DDEPRECATE_TWO_DIGIT_YEARS for optional runtime warnings about strftime
2178d7edd17SPhilip Paeps#	formats that generate only the last two digits of year numbers
2188d7edd17SPhilip Paeps#  -DEPOCH_LOCAL if the 'time' function returns local time not UT
219ba2b2efdSGlen Barber#  -DEPOCH_OFFSET=N if the 'time' function returns a value N greater
220ba2b2efdSGlen Barber#	than what POSIX specifies, assuming local time is UT.
221ba2b2efdSGlen Barber#	For example, N is 252460800 on AmigaOS.
2228d7edd17SPhilip Paeps#  -DHAVE_DECL_ASCTIME_R=0 if <time.h> does not declare asctime_r
223e273650fSPhilip Paeps#	on POSIX platforms predating POSIX.1-2024
2248d7edd17SPhilip Paeps#  -DHAVE_DECL_ENVIRON if <unistd.h> declares 'environ'
225cf1ad535SPhilip Paeps#  -DHAVE_DECL_TIMEGM=0 if <time.h> does not declare timegm
2268d7edd17SPhilip Paeps#  -DHAVE_DIRECT_H if mkdir needs <direct.h> (MS-Windows)
227259e2ad7SPhilip Paeps#  -DHAVE__GENERIC=0 if _Generic does not work*
228cf1ad535SPhilip Paeps#  -DHAVE_GETRANDOM if getrandom works (e.g., GNU/Linux),
229cf1ad535SPhilip Paeps#	-DHAVE_GETRANDOM=0 to avoid using getrandom
230cf1ad535SPhilip Paeps#  -DHAVE_GETTEXT if gettext works (e.g., GNU/Linux, FreeBSD, Solaris),
231cf1ad535SPhilip Paeps#	where LDLIBS also needs to contain -lintl on some hosts;
232cf1ad535SPhilip Paeps#	-DHAVE_GETTEXT=0 to avoid using gettext
2338d7edd17SPhilip Paeps#  -DHAVE_INCOMPATIBLE_CTIME_R if your system's time.h declares
234e273650fSPhilip Paeps#	ctime_r and asctime_r incompatibly with POSIX.1-2017 and earlier
2358d7edd17SPhilip Paeps#	(Solaris when _POSIX_PTHREAD_SEMANTICS is not defined).
236259e2ad7SPhilip Paeps#  -DHAVE_INTTYPES_H=0 if <inttypes.h> does not work*+
2378d7edd17SPhilip Paeps#  -DHAVE_LINK=0 if your system lacks a link function
2388d7edd17SPhilip Paeps#  -DHAVE_LOCALTIME_R=0 if your system lacks a localtime_r function
2398d7edd17SPhilip Paeps#  -DHAVE_LOCALTIME_RZ=0 if you do not want zdump to use localtime_rz
2408d7edd17SPhilip Paeps#	localtime_rz can make zdump significantly faster, but is nonstandard.
24194c2d487SPhilip Paeps#  -DHAVE_MALLOC_ERRNO=0 if malloc etc. do not set errno on failure.
2428d7edd17SPhilip Paeps#  -DHAVE_POSIX_DECLS=0 if your system's include files do not declare
2438d7edd17SPhilip Paeps#	functions like 'link' or variables like 'tzname' required by POSIX
2449142a2a3SPhilip Paeps#  -DHAVE_SETENV=0 if your system lacks the setenv function
245259e2ad7SPhilip Paeps#  -DHAVE_SNPRINTF=0 if your system lacks the snprintf function+
246cf1ad535SPhilip Paeps#  -DHAVE_STDCKDINT_H=0 if neither <stdckdint.h> nor substitutes like
247cf1ad535SPhilip Paeps#	__builtin_add_overflow work*
248259e2ad7SPhilip Paeps#  -DHAVE_STDINT_H=0 if <stdint.h> does not work*+
2498d7edd17SPhilip Paeps#  -DHAVE_STRFTIME_L if <time.h> declares locale_t and strftime_l
2508d7edd17SPhilip Paeps#  -DHAVE_STRDUP=0 if your system lacks the strdup function
251259e2ad7SPhilip Paeps#  -DHAVE_STRTOLL=0 if your system lacks the strtoll function+
2528d7edd17SPhilip Paeps#  -DHAVE_SYMLINK=0 if your system lacks the symlink function
253cf1ad535SPhilip Paeps#  -DHAVE_SYS_STAT_H=0 if <sys/stat.h> does not work*
2548d7edd17SPhilip Paeps#  -DHAVE_TZSET=0 if your system lacks a tzset function
255cf1ad535SPhilip Paeps#  -DHAVE_UNISTD_H=0 if <unistd.h> does not work*
256cf1ad535SPhilip Paeps#  -DHAVE_UTMPX_H=0 if <utmpx.h> does not work*
2578d7edd17SPhilip Paeps#  -Dlocale_t=XXX if your system uses XXX instead of locale_t
258*46226b01SPhilip Paeps#  -DMKTIME_MIGHT_OVERFLOW if mktime might fail due to time_t overflow
259eebb9c2cSPhilip Paeps#  -DPORT_TO_C89 if tzcode should also run on mostly-C89 platforms+
260eebb9c2cSPhilip Paeps#	Typically it is better to use a later standard.  For example,
261eebb9c2cSPhilip Paeps#	with GCC 4.9.4 (2016), prefer '-std=gnu11' to '-DPORT_TO_C89'.
262eebb9c2cSPhilip Paeps#	Even with -DPORT_TO_C89, the code needs at least one C99
263eebb9c2cSPhilip Paeps#	feature (integers at least 64 bits wide) and maybe more.
26446bee4edSPhilip Paeps#  -DRESERVE_STD_EXT_IDS if your platform reserves standard identifiers
26546bee4edSPhilip Paeps#	with external linkage, e.g., applications cannot define 'localtime'.
266*46226b01SPhilip Paeps#  -Dssize_t=int on hosts like MS-Windows that lack ssize_t
267e273650fSPhilip Paeps#  -DSUPPORT_C89=0 if the tzcode library should not support C89 callers
268e273650fSPhilip Paeps#	Although -DSUPPORT_C89=0 might work around latent bugs in callers,
269e273650fSPhilip Paeps#	it does not conform to POSIX.
270e273650fSPhilip Paeps#  -DSUPPORT_POSIX2008 if the library should support older POSIX callers+
271e273650fSPhilip Paeps#	However, this might cause problems in POSIX.1-2024-or-later callers.
27246bee4edSPhilip Paeps#  -DSUPPRESS_TZDIR to not prepend TZDIR to file names; this has
27346bee4edSPhilip Paeps#	security implications and is not recommended for general use
2748d7edd17SPhilip Paeps#  -DTHREAD_SAFE to make localtime.c thread-safe, as POSIX requires;
275ba2b2efdSGlen Barber#	not needed by the main-program tz code, which is single-threaded.
276ba2b2efdSGlen Barber#	Append other compiler flags as needed, e.g., -pthread on GNU/Linux.
277ba2b2efdSGlen Barber#  -Dtime_tz=\"T\" to use T as the time_t type, rather than the system time_t
2788d7edd17SPhilip Paeps#	This is intended for internal use only; it mangles external names.
279ba2b2efdSGlen Barber#  -DTZ_DOMAIN=\"foo\" to use "foo" for gettext domain name; default is "tz"
280ba2b2efdSGlen Barber#  -DTZ_DOMAINDIR=\"/path\" to use "/path" for gettext directory;
281ba2b2efdSGlen Barber#	the default is system-supplied, typically "/usr/lib/locale"
282ba2b2efdSGlen Barber#  -DTZDEFRULESTRING=\",date/time,date/time\" to default to the specified
283e273650fSPhilip Paeps#	DST transitions for proleptic format TZ strings lacking them,
284259e2ad7SPhilip Paeps#	in the usual case where POSIXRULES is '-'.  If not specified,
285259e2ad7SPhilip Paeps#	TZDEFRULESTRING defaults to US rules for future DST transitions.
286259e2ad7SPhilip Paeps#	This mishandles some past timestamps, as US DST rules have changed.
287259e2ad7SPhilip Paeps#	It also mishandles settings like TZ='EET-2EEST' for eastern Europe,
288259e2ad7SPhilip Paeps#	as Europe and US DST rules differ.
289*46226b01SPhilip Paeps#  -DTZNAME_MAXIMUM=N to limit time zone abbreviations to N bytes (default 254)
2908d7edd17SPhilip Paeps#  -DUNINIT_TRAP if reading uninitialized storage can cause problems
291ba2b2efdSGlen Barber#	other than simply getting garbage data
292ba2b2efdSGlen Barber#  -DUSE_LTZ=0 to build zdump with the system time zone library
293ba2b2efdSGlen Barber#	Also set TZDOBJS=zdump.o and CHECK_TIME_T_ALTERNATIVES= below.
29412a899b6SPhilip Paeps#  -DZIC_BLOAT_DEFAULT=\"fat\" to default zic's -b option to "fat", and
29512a899b6SPhilip Paeps#	similarly for "slim".  Fat TZif files work around incompatibilities
2969142a2a3SPhilip Paeps#	and bugs in some TZif readers, notably older ones that
2979142a2a3SPhilip Paeps#	ignore or otherwise mishandle 64-bit data in TZif files;
2989142a2a3SPhilip Paeps#	however, fat TZif files may trigger bugs in newer TZif readers.
2999142a2a3SPhilip Paeps#	Slim TZif files are more efficient, and are the default.
300ba2b2efdSGlen Barber#  -DZIC_MAX_ABBR_LEN_WO_WARN=3
301ba2b2efdSGlen Barber#	(or some other number) to set the maximum time zone abbreviation length
302ba2b2efdSGlen Barber#	that zic will accept without a warning (the default is 6)
303eebb9c2cSPhilip Paeps#  -g to generate symbolic debugging info
304eebb9c2cSPhilip Paeps#  -Idir to include from directory 'dir'
305eebb9c2cSPhilip Paeps#  -O0 to disable optimization; other -O options to enable more optimization
306eebb9c2cSPhilip Paeps#  -Uname to remove any definition of the macro 'name'
307ba2b2efdSGlen Barber#  $(GCC_DEBUG_FLAGS) if you are using recent GCC and want lots of checking
3089142a2a3SPhilip Paeps#
3099142a2a3SPhilip Paeps# * Options marked "*" can be omitted if your compiler is C23 compatible.
310259e2ad7SPhilip Paeps# * Options marked "+" are obsolescent and are planned to be removed
311e273650fSPhilip Paeps#   once the code assumes C99 or later (say in the year 2029)
312e273650fSPhilip Paeps#   and POSIX.1-2024 or later (say in the year 2034).
3139142a2a3SPhilip Paeps#
3148d7edd17SPhilip Paeps# Select instrumentation via "make GCC_INSTRUMENT='whatever'".
3158d7edd17SPhilip PaepsGCC_INSTRUMENT = \
3168d7edd17SPhilip Paeps  -fsanitize=undefined -fsanitize-address-use-after-scope \
3178d7edd17SPhilip Paeps  -fsanitize-undefined-trap-on-error -fstack-protector
31894c2d487SPhilip Paeps# Omit -fanalyzer from GCC_DEBUG_FLAGS, as it makes GCC too slow.
319e273650fSPhilip PaepsGCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 \
3208d7edd17SPhilip Paeps  $(GCC_INSTRUMENT) \
321ba2b2efdSGlen Barber  -Wall -Wextra \
3228d7edd17SPhilip Paeps  -Walloc-size-larger-than=100000 -Warray-bounds=2 \
323*46226b01SPhilip Paeps  -Wbad-function-cast -Wbidi-chars=any,ucn -Wcast-align=strict -Wcast-qual \
324*46226b01SPhilip Paeps  -Wdate-time \
3258d7edd17SPhilip Paeps  -Wdeclaration-after-statement -Wdouble-promotion \
326e273650fSPhilip Paeps  -Wduplicated-branches -Wduplicated-cond -Wflex-array-member-not-at-end \
3278d7edd17SPhilip Paeps  -Wformat=2 -Wformat-overflow=2 -Wformat-signedness -Wformat-truncation \
328cf1ad535SPhilip Paeps  -Wimplicit-fallthrough=5 -Winit-self -Wlogical-op \
329e273650fSPhilip Paeps  -Wmissing-declarations -Wmissing-prototypes \
330e273650fSPhilip Paeps  -Wmissing-variable-declarations -Wnested-externs \
33194c2d487SPhilip Paeps  -Wnull-dereference \
332ba2b2efdSGlen Barber  -Wold-style-definition -Woverlength-strings -Wpointer-arith \
33394c2d487SPhilip Paeps  -Wshadow -Wshift-overflow=2 -Wstrict-overflow \
33494c2d487SPhilip Paeps  -Wstrict-prototypes -Wstringop-overflow=4 \
335d81c2dd9SPhilip Paeps  -Wstringop-truncation -Wsuggest-attribute=cold \
3368d7edd17SPhilip Paeps  -Wsuggest-attribute=const -Wsuggest-attribute=format \
337d81c2dd9SPhilip Paeps  -Wsuggest-attribute=malloc \
3388d7edd17SPhilip Paeps  -Wsuggest-attribute=noreturn -Wsuggest-attribute=pure \
339e273650fSPhilip Paeps  -Wtrampolines -Wundef -Wunused-macros -Wuse-after-free=3 \
3408d7edd17SPhilip Paeps  -Wvariadic-macros -Wvla -Wwrite-strings \
341*46226b01SPhilip Paeps  -Wno-format-nonliteral -Wno-sign-compare -Wno-type-limits
342ba2b2efdSGlen Barber#
343ba2b2efdSGlen Barber# If your system has a "GMT offset" field in its "struct tm"s
344ba2b2efdSGlen Barber# (or if you decide to add such a field in your system's "time.h" file),
345ba2b2efdSGlen Barber# add the name to a define such as
346ba2b2efdSGlen Barber#	-DTM_GMTOFF=tm_gmtoff
347ba2b2efdSGlen Barber# to the end of the "CFLAGS=" line.  If not defined, the code attempts to
348ba2b2efdSGlen Barber# guess TM_GMTOFF from other macros; define NO_TM_GMTOFF to suppress this.
349ba2b2efdSGlen Barber# Similarly, if your system has a "zone abbreviation" field, define
350ba2b2efdSGlen Barber#	-DTM_ZONE=tm_zone
3512723c7ffSPhilip Paeps# and define NO_TM_ZONE to suppress any guessing.
352e273650fSPhilip Paeps# Although POSIX.1-2024 requires these fields and they are widely available
353e273650fSPhilip Paeps# on GNU/Linux and BSD systems, some older systems lack them.
354ba2b2efdSGlen Barber#
3558d7edd17SPhilip Paeps# The next batch of options control support for external variables
3568d7edd17SPhilip Paeps# exported by tzcode.  In practice these variables are less useful
3578d7edd17SPhilip Paeps# than TM_GMTOFF and TM_ZONE.  However, most of them are standardized.
3588d7edd17SPhilip Paeps# #
3598d7edd17SPhilip Paeps# # To omit or support the external variable "tzname", add one of:
360dd5f96c4SPhilip Paeps# #	-DHAVE_TZNAME=0 # do not support "tzname"
361dd5f96c4SPhilip Paeps# #	-DHAVE_TZNAME=1 # support "tzname", which is defined by system library
362dd5f96c4SPhilip Paeps# #	-DHAVE_TZNAME=2 # support and define "tzname"
363e273650fSPhilip Paeps# # to the "CFLAGS=" line.  Although "tzname" is required by POSIX.1-1988
364e273650fSPhilip Paeps# # and later, its contents are unspecified if you use a geographical TZ
365e273650fSPhilip Paeps# # and the variable is planned to be removed in a future POSIX edition.
3668d7edd17SPhilip Paeps# # If not defined, the code attempts to guess HAVE_TZNAME from other macros.
3678d7edd17SPhilip Paeps# # Warning: unless time_tz is also defined, HAVE_TZNAME=1 can cause
3688d7edd17SPhilip Paeps# # crashes when combined with some platforms' standard libraries,
3698d7edd17SPhilip Paeps# # presumably due to memory allocation issues.
3708d7edd17SPhilip Paeps# #
3718d7edd17SPhilip Paeps# # To omit or support the external variables "timezone" and "daylight", add
372dd5f96c4SPhilip Paeps# #	-DUSG_COMPAT=0 # do not support
373dd5f96c4SPhilip Paeps# #	-DUSG_COMPAT=1 # support, and variables are defined by system library
374dd5f96c4SPhilip Paeps# #	-DUSG_COMPAT=2 # support and define variables
3752723c7ffSPhilip Paeps# # to the "CFLAGS=" line; "timezone" and "daylight" are inspired by Unix
376e273650fSPhilip Paeps# # Systems Group code and are required by POSIX.1-2008 and later (with XSI),
377e273650fSPhilip Paeps# # although their contents are unspecified if you use a geographical TZ
378e273650fSPhilip Paeps# # and the variables are planned to be removed in a future edition of POSIX.
3798d7edd17SPhilip Paeps# # If not defined, the code attempts to guess USG_COMPAT from other macros.
3808d7edd17SPhilip Paeps# #
3818d7edd17SPhilip Paeps# # To support the external variable "altzone", add
382dd5f96c4SPhilip Paeps# #	-DALTZONE=0 # do not support
383dd5f96c4SPhilip Paeps# #	-DALTZONE=1 # support "altzone", which is defined by system library
384dd5f96c4SPhilip Paeps# #	-DALTZONE=2 # support and define "altzone"
3858d7edd17SPhilip Paeps# # to the end of the "CFLAGS=" line; although "altzone" appeared in
3868d7edd17SPhilip Paeps# # System V Release 3.1 it has not been standardized.
387dd5f96c4SPhilip Paeps# # If not defined, the code attempts to guess ALTZONE from other macros.
3888d7edd17SPhilip Paeps#
389ba2b2efdSGlen Barber# If you want functions that were inspired by early versions of X3J11's work,
390ba2b2efdSGlen Barber# add
391ba2b2efdSGlen Barber#	-DSTD_INSPIRED
392cf1ad535SPhilip Paeps# to the end of the "CFLAGS=" line.  This arranges for the following
393cf1ad535SPhilip Paeps# functions to be added to the time conversion library.
394ba2b2efdSGlen Barber# "offtime" is like "gmtime" except that it accepts a second (long) argument
395ba2b2efdSGlen Barber# that gives an offset to add to the time_t when converting it.
396eebb9c2cSPhilip Paeps# I.e., "offtime" is like calling "localtime_rz" with a fixed-offset zone.
397eebb9c2cSPhilip Paeps# "timelocal" is nearly equivalent to "mktime".
398ba2b2efdSGlen Barber# "timeoff" is like "timegm" except that it accepts a second (long) argument
399ba2b2efdSGlen Barber# that gives an offset to use when converting to a time_t.
400eebb9c2cSPhilip Paeps# I.e., "timeoff" is like calling "mktime_z" with a fixed-offset zone.
401ba2b2efdSGlen Barber# "posix2time" and "time2posix" are described in an included manual page.
402ba2b2efdSGlen Barber# X3J11's work does not describe any of these functions.
403ba2b2efdSGlen Barber# These functions may well disappear in future releases of the time
404ba2b2efdSGlen Barber# conversion package.
405ba2b2efdSGlen Barber#
406ba2b2efdSGlen Barber# If you don't want functions that were inspired by NetBSD, add
407ba2b2efdSGlen Barber#	-DNETBSD_INSPIRED=0
408ba2b2efdSGlen Barber# to the end of the "CFLAGS=" line.  Otherwise, the functions
409ba2b2efdSGlen Barber# "localtime_rz", "mktime_z", "tzalloc", and "tzfree" are added to the
410259e2ad7SPhilip Paeps# time library, and if STD_INSPIRED is also defined to nonzero the functions
411ba2b2efdSGlen Barber# "posix2time_z" and "time2posix_z" are added as well.
412ba2b2efdSGlen Barber# The functions ending in "_z" (or "_rz") are like their unsuffixed
413ba2b2efdSGlen Barber# (or suffixed-by-"_r") counterparts, except with an extra first
414ba2b2efdSGlen Barber# argument of opaque type timezone_t that specifies the timezone.
415ba2b2efdSGlen Barber# "tzalloc" allocates a timezone_t value, and "tzfree" frees it.
416ba2b2efdSGlen Barber#
417ba2b2efdSGlen Barber# If you want to allocate state structures in localtime, add
418ba2b2efdSGlen Barber#	-DALL_STATE
419ba2b2efdSGlen Barber# to the end of the "CFLAGS=" line.  Storage is obtained by calling malloc.
420ba2b2efdSGlen Barber#
421ba2b2efdSGlen Barber# NIST-PCTS:151-2, Version 1.4, (1993-12-03) is a test suite put
422ba2b2efdSGlen Barber# out by the National Institute of Standards and Technology
423eebb9c2cSPhilip Paeps# which claims to test C and POSIX conformance.  If you want to pass PCTS, add
424ba2b2efdSGlen Barber#	-DPCTS
425ba2b2efdSGlen Barber# to the end of the "CFLAGS=" line.
426ba2b2efdSGlen Barber#
427ba2b2efdSGlen Barber# If you want strict compliance with XPG4 as of 1994-04-09, add
428ba2b2efdSGlen Barber#	-DXPG4_1994_04_09
429ba2b2efdSGlen Barber# to the end of the "CFLAGS=" line.  This causes "strftime" to always return
4308d7edd17SPhilip Paeps# 53 as a week number (rather than 52 or 53) for January days before
4318d7edd17SPhilip Paeps# January's first Monday when a "%V" format is used and January 1
432ba2b2efdSGlen Barber# falls on a Friday, Saturday, or Sunday.
433eebb9c2cSPhilip Paeps#
434eebb9c2cSPhilip Paeps# POSIX says CFLAGS defaults to "-O 1".
435eebb9c2cSPhilip Paeps# Uncomment the following line and edit its contents as needed.
436ba2b2efdSGlen Barber
437eebb9c2cSPhilip Paeps#CFLAGS= -O 1
438ba2b2efdSGlen Barber
439ba2b2efdSGlen Barber
440eebb9c2cSPhilip Paeps# The name of a POSIX-like library archiver, its flags, C compiler,
441eebb9c2cSPhilip Paeps# linker flags, and 'make' utility.  Ordinarily the defaults suffice.
442e273650fSPhilip Paeps# The commented-out values are the defaults specified by POSIX.1-2024.
443eebb9c2cSPhilip Paeps#AR = ar
444eebb9c2cSPhilip Paeps#ARFLAGS = -rv
445eebb9c2cSPhilip Paeps#CC = c17
446eebb9c2cSPhilip Paeps#LDFLAGS =
447eebb9c2cSPhilip Paeps#MAKE = make
448ba2b2efdSGlen Barber
4492723c7ffSPhilip Paeps# Where to fetch leap-seconds.list from.
4502723c7ffSPhilip Paepsleaplist_URI = \
4512723c7ffSPhilip Paeps  https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list
4522723c7ffSPhilip Paeps# The file is generated by the IERS Earth Orientation Centre, in Paris.
4532723c7ffSPhilip Paepsleaplist_TZ = Europe/Paris
4542723c7ffSPhilip Paeps
455ba2b2efdSGlen Barber# The zic command and its arguments.
456ba2b2efdSGlen Barber
457ba2b2efdSGlen Barberzic=		./zic
458ba2b2efdSGlen BarberZIC=		$(zic) $(ZFLAGS)
459ba2b2efdSGlen Barber
460ad48359aSPhilip Paeps# To shrink the size of installed TZif files,
461ad48359aSPhilip Paeps# append "-r @N" to omit data before N-seconds-after-the-Epoch.
4629142a2a3SPhilip Paeps# To grow the files and work around bugs in older applications,
4639142a2a3SPhilip Paeps# possibly at the expense of introducing bugs in newer ones,
4649142a2a3SPhilip Paeps# append "-b fat"; see ZIC_BLOAT_DEFAULT above.
4652865ab3fSPhilip Paeps# See the zic man page for more about -b and -r.
466ba2b2efdSGlen BarberZFLAGS=
467ba2b2efdSGlen Barber
46889abb9f8SPhilip Paeps# How to use zic to install TZif files.
469ba2b2efdSGlen Barber
470e273650fSPhilip PaepsZIC_INSTALL=	$(ZIC) -d '$(DESTDIR)$(TZDIR)'
471ba2b2efdSGlen Barber
472eebb9c2cSPhilip Paeps# The name of a POSIX-compliant 'awk' on your system.
4738ea5af2bSPhilip Paeps# mawk 1.3.3 and Solaris 10 /usr/bin/awk do not work.
4748ea5af2bSPhilip Paeps# Also, it is better (though not essential) if 'awk' supports UTF-8,
4758ea5af2bSPhilip Paeps# and unfortunately mawk and busybox awk do not support UTF-8.
4768ea5af2bSPhilip Paeps# Try AWK=gawk or AWK=nawk if your awk has the abovementioned problems.
477ba2b2efdSGlen BarberAWK=		awk
478ba2b2efdSGlen Barber
479eebb9c2cSPhilip Paeps# The full path name of a POSIX-compliant shell, preferably one that supports
480ba2b2efdSGlen Barber# the Korn shell's 'select' statement as an extension.
481ba2b2efdSGlen Barber# These days, Bash is the most popular.
482ba2b2efdSGlen Barber# It should be OK to set this to /bin/sh, on platforms where /bin/sh
483eebb9c2cSPhilip Paeps# lacks 'select' or doesn't completely conform to POSIX, but /bin/bash
484ba2b2efdSGlen Barber# is typically nicer if it works.
485ba2b2efdSGlen BarberKSHELL=		/bin/bash
486ba2b2efdSGlen Barber
4872723c7ffSPhilip Paeps# Name of curl <https://curl.haxx.se/>, used for HTML validation
4882723c7ffSPhilip Paeps# and to fetch leap-seconds.list from upstream.
489e273650fSPhilip Paeps# Set CURL=: to disable use of the Internet.
4902c5e84ccSPhilip PaepsCURL=		curl
4912c5e84ccSPhilip Paeps
4922865ab3fSPhilip Paeps# Name of GNU Privacy Guard <https://gnupg.org/>, used to sign distributions.
4932865ab3fSPhilip PaepsGPG=		gpg
4942865ab3fSPhilip Paeps
495ba2b2efdSGlen Barber# This expensive test requires USE_LTZ.
496ba2b2efdSGlen Barber# To suppress it, define this macro to be empty.
497ba2b2efdSGlen BarberCHECK_TIME_T_ALTERNATIVES = check_time_t_alternatives
498ba2b2efdSGlen Barber
499ba2b2efdSGlen Barber# SAFE_CHAR is a regular expression that matches a safe character.
500ba2b2efdSGlen Barber# Some parts of this distribution are limited to safe characters;
501ba2b2efdSGlen Barber# others can use any UTF-8 character.
502ba2b2efdSGlen Barber# For now, the safe characters are a safe subset of ASCII.
503ba2b2efdSGlen Barber# The caller must set the shell variable 'sharp' to the character '#',
504ba2b2efdSGlen Barber# since Makefile macros cannot contain '#'.
505ba2b2efdSGlen Barber# TAB_CHAR is a single tab character, in single quotes.
506ba2b2efdSGlen BarberTAB_CHAR=	'	'
507ba2b2efdSGlen BarberSAFE_CHARSET1=	$(TAB_CHAR)' !\"'$$sharp'$$%&'\''()*+,./0123456789:;<=>?@'
508ba2b2efdSGlen BarberSAFE_CHARSET2=	'ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\^_`'
509ba2b2efdSGlen BarberSAFE_CHARSET3=	'abcdefghijklmnopqrstuvwxyz{|}~'
510ba2b2efdSGlen BarberSAFE_CHARSET=	$(SAFE_CHARSET1)$(SAFE_CHARSET2)$(SAFE_CHARSET3)
511ba2b2efdSGlen BarberSAFE_CHAR=	'[]'$(SAFE_CHARSET)'-]'
512ba2b2efdSGlen Barber
513259e2ad7SPhilip Paeps# These non-alphabetic, non-ASCII printable characters are Latin-1,
514259e2ad7SPhilip Paeps# and so are likely displayable even in editors like XEmacs 21
515259e2ad7SPhilip Paeps# that have limited display capabilities.
516259e2ad7SPhilip PaepsUNUSUAL_OK_LATIN_1 = ¡¢£¤¥¦§¨©«¬®¯°±²³´¶·¸¹»¼½¾¿×÷
51746bee4edSPhilip Paeps# Non-ASCII non-letters that OK_CHAR allows, as these characters are
51889abb9f8SPhilip Paeps# useful in commentary.
519259e2ad7SPhilip PaepsUNUSUAL_OK_CHARSET= $(UNUSUAL_OK_LATIN_1)
52046bee4edSPhilip Paeps
5219f9fc6bbSPhilip Paeps# Put this in a bracket expression to match spaces.
5229f9fc6bbSPhilip Paepss = [:space:]
5239f9fc6bbSPhilip Paeps
524ba2b2efdSGlen Barber# OK_CHAR matches any character allowed in the distributed files.
52546bee4edSPhilip Paeps# This is the same as SAFE_CHAR, except that UNUSUAL_OK_CHARSET and
52646bee4edSPhilip Paeps# multibyte letters are also allowed so that commentary can contain a
52746bee4edSPhilip Paeps# few safe symbols and people's names and can quote non-English sources.
52846bee4edSPhilip Paeps# Other non-letters are limited to ASCII renderings for the
52946bee4edSPhilip Paeps# convenience of maintainers using XEmacs 21.5.34, which by default
53046bee4edSPhilip Paeps# mishandles Unicode characters U+0100 and greater.
53146bee4edSPhilip PaepsOK_CHAR=	'[][:alpha:]$(UNUSUAL_OK_CHARSET)'$(SAFE_CHARSET)'-]'
532ba2b2efdSGlen Barber
533ba2b2efdSGlen Barber# SAFE_LINE matches a line of safe characters.
534ba2b2efdSGlen Barber# SAFE_SHARP_LINE is similar, except any OK character can follow '#';
535ba2b2efdSGlen Barber# this is so that comments can contain non-ASCII characters.
536ba2b2efdSGlen Barber# OK_LINE matches a line of OK characters.
537ba2b2efdSGlen BarberSAFE_LINE=	'^'$(SAFE_CHAR)'*$$'
538ba2b2efdSGlen BarberSAFE_SHARP_LINE='^'$(SAFE_CHAR)'*('$$sharp$(OK_CHAR)'*)?$$'
539ba2b2efdSGlen BarberOK_LINE=	'^'$(OK_CHAR)'*$$'
540ba2b2efdSGlen Barber
541ba2b2efdSGlen Barber# Flags to give 'tar' when making a distribution.
542ba2b2efdSGlen Barber# Try to use flags appropriate for GNU tar.
543e273650fSPhilip PaepsGNUTARFLAGS= --format=pax --pax-option=delete=atime,delete=ctime \
5448ea5af2bSPhilip Paeps  --numeric-owner --owner=0 --group=0 \
5458ea5af2bSPhilip Paeps  --mode=go+u,go-w --sort=name
546e273650fSPhilip PaepsSETUP_TAR= \
547e273650fSPhilip Paeps  export LC_ALL=C && \
548e273650fSPhilip Paeps  if tar $(GNUTARFLAGS) --version >/dev/null 2>&1; then \
549e273650fSPhilip Paeps    TAR='tar $(GNUTARFLAGS)'; \
550e273650fSPhilip Paeps  else \
551e273650fSPhilip Paeps    TAR=tar; \
552e273650fSPhilip Paeps  fi
553ba2b2efdSGlen Barber
554ba2b2efdSGlen Barber# Flags to give 'gzip' when making a distribution.
555ba2b2efdSGlen BarberGZIPFLAGS=	-9n
556ba2b2efdSGlen Barber
557cf1ad535SPhilip Paeps# When comparing .tzs files, use GNU diff's -F'^TZ=' option if supported.
558cf1ad535SPhilip Paeps# This makes it easier to see which Zone has been affected.
559e273650fSPhilip PaepsSETUP_DIFF_TZS = \
560e273650fSPhilip Paeps  if diff -u -F'^TZ=' - - <>/dev/null >&0 2>&1; then \
561e273650fSPhilip Paeps    DIFF_TZS='diff -u -F^TZ='; \
562e273650fSPhilip Paeps  else \
563e273650fSPhilip Paeps    DIFF_TZS='diff -u'; \
564e273650fSPhilip Paeps  fi
565cf1ad535SPhilip Paeps
566ba2b2efdSGlen Barber# ':' on typical hosts; 'ranlib' on the ancient hosts that still need ranlib.
567ba2b2efdSGlen BarberRANLIB=		:
568ba2b2efdSGlen Barber
569eebb9c2cSPhilip Paeps# POSIX prohibits defining or using SHELL.  However, csh users on systems
570eebb9c2cSPhilip Paeps# that use the user shell for Makefile commands may need to define SHELL.
571eebb9c2cSPhilip Paeps#SHELL=		/bin/sh
572eebb9c2cSPhilip Paeps
573eebb9c2cSPhilip Paeps# End of macros that one plausibly might want to tailor.
574eebb9c2cSPhilip Paeps###############################################################################
575eebb9c2cSPhilip Paeps
576eebb9c2cSPhilip Paeps
577ba2b2efdSGlen BarberTZCOBJS=	zic.o
578e273650fSPhilip PaepsTZDOBJS=	zdump.o localtime.o strftime.o
579e273650fSPhilip PaepsDATEOBJS=	date.o localtime.o strftime.o
580dd5f96c4SPhilip PaepsLIBSRCS=	localtime.c asctime.c difftime.c strftime.c
581dd5f96c4SPhilip PaepsLIBOBJS=	localtime.o asctime.o difftime.o strftime.o
582ba2b2efdSGlen BarberHEADERS=	tzfile.h private.h
583ba2b2efdSGlen BarberNONLIBSRCS=	zic.c zdump.c
584dd5f96c4SPhilip PaepsNEWUCBSRCS=	date.c
585ba2b2efdSGlen BarberSOURCES=	$(HEADERS) $(LIBSRCS) $(NONLIBSRCS) $(NEWUCBSRCS) \
586ba2b2efdSGlen Barber			tzselect.ksh workman.sh
587ba2b2efdSGlen BarberMANS=		newctime.3 newstrftime.3 newtzset.3 time2posix.3 \
588ba2b2efdSGlen Barber			tzfile.5 tzselect.8 zic.8 zdump.8
589ba2b2efdSGlen BarberMANTXTS=	newctime.3.txt newstrftime.3.txt newtzset.3.txt \
590ba2b2efdSGlen Barber			time2posix.3.txt \
591ba2b2efdSGlen Barber			tzfile.5.txt tzselect.8.txt zic.8.txt zdump.8.txt \
592ba2b2efdSGlen Barber			date.1.txt
5938d7edd17SPhilip PaepsCOMMON=		calendars CONTRIBUTING LICENSE Makefile \
59493d120dbSPhilip Paeps			NEWS README SECURITY theory.html version
595f2fcff28SPhilip PaepsWEB_PAGES=	tz-art.html tz-how-to.html tz-link.html
596e273650fSPhilip PaepsCHECK_WEB_PAGES=theory.ck tz-art.ck tz-how-to.ck tz-link.ck
597ba2b2efdSGlen BarberDOCS=		$(MANS) date.1 $(MANTXTS) $(WEB_PAGES)
598ba2b2efdSGlen BarberPRIMARY_YDATA=	africa antarctica asia australasia \
599ba2b2efdSGlen Barber		europe northamerica southamerica
600afb91be3SPhilip PaepsYDATA=		$(PRIMARY_YDATA) etcetera
60112a899b6SPhilip PaepsNDATA=		factory
60212a899b6SPhilip PaepsTDATA_TO_CHECK=	$(YDATA) $(NDATA) backward
603afb91be3SPhilip PaepsTDATA=		$(YDATA) $(NDATA) $(BACKWARD)
604eebb9c2cSPhilip PaepsZONETABLES=	zone.tab zone1970.tab zonenow.tab
6058d7edd17SPhilip PaepsTABDATA=	iso3166.tab $(TZDATA_TEXT) $(ZONETABLES)
606ba2b2efdSGlen BarberLEAP_DEPS=	leapseconds.awk leap-seconds.list
6079f9fc6bbSPhilip PaepsTZDATA_ZI_DEPS=	ziguard.awk zishrink.awk version $(TDATA) \
6089f9fc6bbSPhilip Paeps		  $(PACKRATDATA) $(PACKRATLIST)
6099f9fc6bbSPhilip PaepsDSTDATA_ZI_DEPS= ziguard.awk $(TDATA) $(PACKRATDATA) $(PACKRATLIST)
610afb91be3SPhilip PaepsDATA=		$(TDATA_TO_CHECK) backzone iso3166.tab leap-seconds.list \
61112a899b6SPhilip Paeps			leapseconds $(ZONETABLES)
612eebb9c2cSPhilip PaepsAWK_SCRIPTS=	checklinks.awk checknow.awk checktab.awk leapseconds.awk \
61346bee4edSPhilip Paeps			ziguard.awk zishrink.awk
6145f33eb72SPhilip PaepsMISC=		$(AWK_SCRIPTS)
615ba2b2efdSGlen BarberTZS_YEAR=	2050
61689abb9f8SPhilip PaepsTZS_CUTOFF_FLAG=	-c $(TZS_YEAR)
617ba2b2efdSGlen BarberTZS=		to$(TZS_YEAR).tzs
618ba2b2efdSGlen BarberTZS_NEW=	to$(TZS_YEAR)new.tzs
619*46226b01SPhilip PaepsTZS_DEPS=	$(YDATA) localtime.c private.h \
620*46226b01SPhilip Paeps			strftime.c tzfile.h zdump.c zic.c
6219f9fc6bbSPhilip PaepsTZDATA_DIST = $(COMMON) $(DATA) $(MISC)
62289abb9f8SPhilip Paeps# EIGHT_YARDS is just a yard short of the whole ENCHILADA.
6239f9fc6bbSPhilip PaepsEIGHT_YARDS = $(TZDATA_DIST) $(DOCS) $(SOURCES) tzdata.zi
62489abb9f8SPhilip PaepsENCHILADA = $(EIGHT_YARDS) $(TZS)
625ba2b2efdSGlen Barber
626ba2b2efdSGlen Barber# Consult these files when deciding whether to rebuild the 'version' file.
627ba2b2efdSGlen Barber# This list is not the same as the output of 'git ls-files', since
628ba2b2efdSGlen Barber# .gitignore is not distributed.
629ba2b2efdSGlen BarberVERSION_DEPS= \
63093d120dbSPhilip Paeps		calendars CONTRIBUTING LICENSE Makefile NEWS README SECURITY \
631ba2b2efdSGlen Barber		africa antarctica asctime.c asia australasia \
632ba2b2efdSGlen Barber		backward backzone \
633eebb9c2cSPhilip Paeps		checklinks.awk checknow.awk checktab.awk \
634ba2b2efdSGlen Barber		date.1 date.c difftime.c \
635ba2b2efdSGlen Barber		etcetera europe factory iso3166.tab \
636ba2b2efdSGlen Barber		leap-seconds.list leapseconds.awk localtime.c \
637ba2b2efdSGlen Barber		newctime.3 newstrftime.3 newtzset.3 northamerica \
63812a899b6SPhilip Paeps		private.h southamerica strftime.c theory.html \
639f2fcff28SPhilip Paeps		time2posix.3 tz-art.html tz-how-to.html tz-link.html \
640ba2b2efdSGlen Barber		tzfile.5 tzfile.h tzselect.8 tzselect.ksh \
64112a899b6SPhilip Paeps		workman.sh zdump.8 zdump.c zic.8 zic.c \
642d81c2dd9SPhilip Paeps		ziguard.awk zishrink.awk \
643eebb9c2cSPhilip Paeps		zone.tab zone1970.tab zonenow.tab
644ba2b2efdSGlen Barber
64512a899b6SPhilip Paepsall:		tzselect zic zdump libtz.a $(TABDATA) \
64646bee4edSPhilip Paeps		  vanguard.zi main.zi rearguard.zi
647ba2b2efdSGlen Barber
648ba2b2efdSGlen BarberALL:		all date $(ENCHILADA)
649ba2b2efdSGlen Barber
650ba2b2efdSGlen Barberinstall:	all $(DATA) $(REDO) $(MANS)
651f2fcff28SPhilip Paeps		mkdir -p '$(DESTDIR)$(BINDIR)' \
652f2fcff28SPhilip Paeps			'$(DESTDIR)$(ZDUMPDIR)' '$(DESTDIR)$(ZICDIR)' \
653f2fcff28SPhilip Paeps			'$(DESTDIR)$(LIBDIR)' \
654f2fcff28SPhilip Paeps			'$(DESTDIR)$(MANDIR)/man3' '$(DESTDIR)$(MANDIR)/man5' \
655f2fcff28SPhilip Paeps			'$(DESTDIR)$(MANDIR)/man8'
6562865ab3fSPhilip Paeps		$(ZIC_INSTALL) -l $(LOCALTIME) \
657e273650fSPhilip Paeps			-p $(POSIXRULES) \
658f2fcff28SPhilip Paeps			-t '$(DESTDIR)$(TZDEFAULT)'
659f2fcff28SPhilip Paeps		cp -f $(TABDATA) '$(DESTDIR)$(TZDIR)/.'
660f2fcff28SPhilip Paeps		cp tzselect '$(DESTDIR)$(BINDIR)/.'
661f2fcff28SPhilip Paeps		cp zdump '$(DESTDIR)$(ZDUMPDIR)/.'
662f2fcff28SPhilip Paeps		cp zic '$(DESTDIR)$(ZICDIR)/.'
663f2fcff28SPhilip Paeps		cp libtz.a '$(DESTDIR)$(LIBDIR)/.'
664f2fcff28SPhilip Paeps		$(RANLIB) '$(DESTDIR)$(LIBDIR)/libtz.a'
665f2fcff28SPhilip Paeps		cp -f newctime.3 newtzset.3 '$(DESTDIR)$(MANDIR)/man3/.'
666f2fcff28SPhilip Paeps		cp -f tzfile.5 '$(DESTDIR)$(MANDIR)/man5/.'
667f2fcff28SPhilip Paeps		cp -f tzselect.8 zdump.8 zic.8 '$(DESTDIR)$(MANDIR)/man8/.'
668ba2b2efdSGlen Barber
669ba2b2efdSGlen BarberINSTALL:	ALL install date.1
670f2fcff28SPhilip Paeps		mkdir -p '$(DESTDIR)$(BINDIR)' '$(DESTDIR)$(MANDIR)/man1'
671f2fcff28SPhilip Paeps		cp date '$(DESTDIR)$(BINDIR)/.'
672f2fcff28SPhilip Paeps		cp -f date.1 '$(DESTDIR)$(MANDIR)/man1/.'
673ba2b2efdSGlen Barber
674dc505d53SPhilip Paeps# Calculate version number from git, if available.
675dc505d53SPhilip Paeps# Otherwise, use $(VERSION) unless it is "unknown" and there is already
676dc505d53SPhilip Paeps# a 'version' file, in which case reuse the existing 'version' contents
677dc505d53SPhilip Paeps# and append "-dirty" if the contents do not already end in "-dirty".
678ba2b2efdSGlen Barberversion:	$(VERSION_DEPS)
679ba2b2efdSGlen Barber		{ (type git) >/dev/null 2>&1 && \
680e273650fSPhilip Paeps		  V=$$(git describe --match '[0-9][0-9][0-9][0-9][a-z]*' \
681e273650fSPhilip Paeps				--abbrev=7 --dirty) || \
682e273650fSPhilip Paeps		  if test '$(VERSION)' = unknown && read -r V <$@; then \
683e273650fSPhilip Paeps		    V=$${V%-dirty}-dirty; \
684dc505d53SPhilip Paeps		  else \
685dc505d53SPhilip Paeps		    V='$(VERSION)'; \
686dc505d53SPhilip Paeps		  fi; } && \
687ba2b2efdSGlen Barber		printf '%s\n' "$$V" >$@.out
688ba2b2efdSGlen Barber		mv $@.out $@
689ba2b2efdSGlen Barber
6909f9fc6bbSPhilip Paeps# These files can be tailored by setting BACKWARD, PACKRATDATA, PACKRATLIST.
69146bee4edSPhilip Paepsvanguard.zi main.zi rearguard.zi: $(DSTDATA_ZI_DEPS)
6929f9fc6bbSPhilip Paeps		$(AWK) \
693e273650fSPhilip Paeps		  -v DATAFORM=$(@:.zi=) \
6949f9fc6bbSPhilip Paeps		  -v PACKRATDATA='$(PACKRATDATA)' \
6959f9fc6bbSPhilip Paeps		  -v PACKRATLIST='$(PACKRATLIST)' \
6969f9fc6bbSPhilip Paeps		  -f ziguard.awk \
697d81c2dd9SPhilip Paeps		  $(TDATA) $(PACKRATDATA) >$@.out
69846bee4edSPhilip Paeps		mv $@.out $@
69989abb9f8SPhilip Paeps# This file has a version comment that attempts to capture any tailoring
7009f9fc6bbSPhilip Paeps# via BACKWARD, DATAFORM, PACKRATDATA, PACKRATLIST, and REDO.
70189abb9f8SPhilip Paepstzdata.zi:	$(DATAFORM).zi version zishrink.awk
702e273650fSPhilip Paeps		read -r version <version && \
70389abb9f8SPhilip Paeps		  LC_ALL=C $(AWK) \
70489abb9f8SPhilip Paeps		    -v dataform='$(DATAFORM)' \
70589abb9f8SPhilip Paeps		    -v deps='$(DSTDATA_ZI_DEPS) zishrink.awk' \
70689abb9f8SPhilip Paeps		    -v redo='$(REDO)' \
70789abb9f8SPhilip Paeps		    -v version="$$version" \
70889abb9f8SPhilip Paeps		    -f zishrink.awk \
70946bee4edSPhilip Paeps		    $(DATAFORM).zi >$@.out
7108d7edd17SPhilip Paeps		mv $@.out $@
7118d7edd17SPhilip Paeps
712eebb9c2cSPhilip Paepstzdir.h:
713eebb9c2cSPhilip Paeps		printf '%s\n' >$@.out \
714eebb9c2cSPhilip Paeps		  '#ifndef TZDEFAULT' \
715eebb9c2cSPhilip Paeps		  '# define TZDEFAULT "$(TZDEFAULT)" /* default zone */' \
716eebb9c2cSPhilip Paeps		  '#endif' \
717eebb9c2cSPhilip Paeps		  '#ifndef TZDIR' \
718eebb9c2cSPhilip Paeps		  '# define TZDIR "$(TZDIR)" /* TZif directory */' \
719eebb9c2cSPhilip Paeps		  '#endif'
720eebb9c2cSPhilip Paeps		mv $@.out $@
721eebb9c2cSPhilip Paeps
722ba2b2efdSGlen Barberversion.h:	version
723e273650fSPhilip Paeps		read -r VERSION <version && printf '%s\n' \
724ba2b2efdSGlen Barber		  'static char const PKGVERSION[]="($(PACKAGE)) ";' \
725ba2b2efdSGlen Barber		  "static char const TZVERSION[]=\"$$VERSION\";" \
726ba2b2efdSGlen Barber		  'static char const REPORT_BUGS_TO[]="$(BUGEMAIL)";' \
727ba2b2efdSGlen Barber		  >$@.out
728ba2b2efdSGlen Barber		mv $@.out $@
729ba2b2efdSGlen Barber
730ba2b2efdSGlen Barberzdump:		$(TZDOBJS)
731ba2b2efdSGlen Barber		$(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZDOBJS) $(LDLIBS)
732ba2b2efdSGlen Barber
733ba2b2efdSGlen Barberzic:		$(TZCOBJS)
734ba2b2efdSGlen Barber		$(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZCOBJS) $(LDLIBS)
735ba2b2efdSGlen Barber
736ba2b2efdSGlen Barberleapseconds:	$(LEAP_DEPS)
737dd5f96c4SPhilip Paeps		$(AWK) -v EXPIRES_LINE=$(EXPIRES_LINE) \
738dd5f96c4SPhilip Paeps		  -f leapseconds.awk leap-seconds.list >$@.out
739ba2b2efdSGlen Barber		mv $@.out $@
740ba2b2efdSGlen Barber
7412723c7ffSPhilip Paeps# Awk script to extract a Git-style author from leap-seconds.list comments.
7422723c7ffSPhilip PaepsEXTRACT_AUTHOR = \
7432723c7ffSPhilip Paeps  author_line { sub(/^.[[:space:]]*/, ""); \
7442723c7ffSPhilip Paeps      sub(/:[[:space:]]*/, " <"); \
7452723c7ffSPhilip Paeps      printf "%s>\n", $$0; \
7462723c7ffSPhilip Paeps      success = 1; \
7472723c7ffSPhilip Paeps      exit \
7482723c7ffSPhilip Paeps  } \
7492723c7ffSPhilip Paeps  /Questions or comments to:/ { author_line = 1 } \
7502723c7ffSPhilip Paeps  END { exit !success }
7512723c7ffSPhilip Paeps
7522723c7ffSPhilip Paeps# Fetch leap-seconds.list from upstream.
7532723c7ffSPhilip Paepsfetch-leap-seconds.list:
7542723c7ffSPhilip Paeps		$(CURL) -OR $(leaplist_URI)
7552723c7ffSPhilip Paeps
7562723c7ffSPhilip Paeps# Fetch leap-seconds.list from upstream and commit it to the local repository.
7572723c7ffSPhilip Paepscommit-leap-seconds.list: fetch-leap-seconds.list
7582723c7ffSPhilip Paeps		author=$$($(AWK) '$(EXTRACT_AUTHOR)' leap-seconds.list) && \
7592723c7ffSPhilip Paeps		date=$$(TZ=$(leaplist_TZ) stat -c%y leap-seconds.list) && \
7602723c7ffSPhilip Paeps		git commit --author="$$author" --date="$$date" -m'make $@' \
7612723c7ffSPhilip Paeps		  leap-seconds.list
7622723c7ffSPhilip Paeps
763e273650fSPhilip Paeps# Arguments to pass to submakes.
764ba2b2efdSGlen Barber# They can be overridden by later submake arguments.
765ba2b2efdSGlen BarberINSTALLARGS = \
766f2fcff28SPhilip Paeps BACKWARD='$(BACKWARD)' \
767f2fcff28SPhilip Paeps DESTDIR='$(DESTDIR)' \
768ba2b2efdSGlen Barber PACKRATDATA='$(PACKRATDATA)' \
7699f9fc6bbSPhilip Paeps PACKRATLIST='$(PACKRATLIST)' \
770f2fcff28SPhilip Paeps TZDEFAULT='$(TZDEFAULT)' \
771f2fcff28SPhilip Paeps TZDIR='$(TZDIR)' \
772ba2b2efdSGlen Barber ZIC='$(ZIC)'
773ba2b2efdSGlen Barber
77412a899b6SPhilip PaepsINSTALL_DATA_DEPS = zic leapseconds tzdata.zi
77589abb9f8SPhilip Paeps
776e273650fSPhilip Paepsposix_only: $(INSTALL_DATA_DEPS)
7778d7edd17SPhilip Paeps		$(ZIC_INSTALL) tzdata.zi
778ba2b2efdSGlen Barber
77989abb9f8SPhilip Paepsright_only: $(INSTALL_DATA_DEPS)
780e273650fSPhilip Paeps		$(ZIC_INSTALL) -L leapseconds tzdata.zi
781ba2b2efdSGlen Barber
782ba2b2efdSGlen Barber# In earlier versions of this makefile, the other two directories were
783ba2b2efdSGlen Barber# subdirectories of $(TZDIR).  However, this led to configuration errors.
784ba2b2efdSGlen Barber# For example, with posix_right under the earlier scheme,
785ba2b2efdSGlen Barber# TZ='right/Australia/Adelaide' got you localtime with leap seconds,
786ba2b2efdSGlen Barber# but gmtime without leap seconds, which led to problems with applications
787ba2b2efdSGlen Barber# like sendmail that subtract gmtime from localtime.
788ba2b2efdSGlen Barber# Therefore, the other two directories are now siblings of $(TZDIR).
789ba2b2efdSGlen Barber# You must replace all of $(TZDIR) to switch from not using leap seconds
790ba2b2efdSGlen Barber# to using them, or vice versa.
791ba2b2efdSGlen Barberright_posix:	right_only
792f2fcff28SPhilip Paeps		rm -fr '$(DESTDIR)$(TZDIR)-leaps'
793f2fcff28SPhilip Paeps		ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-leaps' || \
794f2fcff28SPhilip Paeps		  $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only
795f2fcff28SPhilip Paeps		$(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only
796ba2b2efdSGlen Barber
797ba2b2efdSGlen Barberposix_right:	posix_only
798f2fcff28SPhilip Paeps		rm -fr '$(DESTDIR)$(TZDIR)-posix'
799f2fcff28SPhilip Paeps		ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-posix' || \
800f2fcff28SPhilip Paeps		  $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only
801f2fcff28SPhilip Paeps		$(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only
802ba2b2efdSGlen Barber
803ba2b2efdSGlen Barberzones:		$(REDO)
804ba2b2efdSGlen Barber
80546bee4edSPhilip Paeps# dummy.zd is not a real file; it is mentioned here only so that the
80646bee4edSPhilip Paeps# top-level 'make' does not have a syntax error.
80746bee4edSPhilip PaepsZDS = dummy.zd
80846bee4edSPhilip Paeps# Rule used only by submakes invoked by the $(TZS_NEW) rule.
80946bee4edSPhilip Paeps# It is separate so that GNU 'make -j' can run instances in parallel.
81046bee4edSPhilip Paeps$(ZDS): zdump
811e273650fSPhilip Paeps		./zdump -i $(TZS_CUTOFF_FLAG) "$$PWD/$(@:.zd=)" >$@
81246bee4edSPhilip Paeps
81389abb9f8SPhilip PaepsTZS_NEW_DEPS = tzdata.zi zdump zic
81489abb9f8SPhilip Paeps$(TZS_NEW): $(TZS_NEW_DEPS)
81589abb9f8SPhilip Paeps		rm -fr tzs$(TZS_YEAR).dir
81689abb9f8SPhilip Paeps		mkdir tzs$(TZS_YEAR).dir
81789abb9f8SPhilip Paeps		$(zic) -d tzs$(TZS_YEAR).dir tzdata.zi
8188d7edd17SPhilip Paeps		$(AWK) '/^L/{print "Link\t" $$2 "\t" $$3}' \
8198d7edd17SPhilip Paeps		   tzdata.zi | LC_ALL=C sort >$@.out
820e273650fSPhilip Paeps		x=$$($(AWK) '/^Z/{print "tzs$(TZS_YEAR).dir/" $$2 ".zd"}' \
82189abb9f8SPhilip Paeps				tzdata.zi \
822e273650fSPhilip Paeps		     | LC_ALL=C sort -t . -k 2,2) && \
82389abb9f8SPhilip Paeps		set x $$x && \
82446bee4edSPhilip Paeps		shift && \
82546bee4edSPhilip Paeps		ZDS=$$* && \
826e273650fSPhilip Paeps		$(MAKE) TZS_CUTOFF_FLAG="$(TZS_CUTOFF_FLAG)" \
82789abb9f8SPhilip Paeps		  ZDS="$$ZDS" $$ZDS && \
82889abb9f8SPhilip Paeps		sed 's,^TZ=".*\.dir/,TZ=",' $$ZDS >>$@.out
82989abb9f8SPhilip Paeps		rm -fr tzs$(TZS_YEAR).dir
83046bee4edSPhilip Paeps		mv $@.out $@
831ba2b2efdSGlen Barber
832e273650fSPhilip Paeps# If $(TZS) exists but 'make tzs.ck' fails, a maintainer should inspect the
833ba2b2efdSGlen Barber# failed output and fix the inconsistency, perhaps by running 'make force_tzs'.
834ba2b2efdSGlen Barber$(TZS):
83589abb9f8SPhilip Paeps		touch $@
836ba2b2efdSGlen Barber
837ba2b2efdSGlen Barberforce_tzs:	$(TZS_NEW)
838ba2b2efdSGlen Barber		cp $(TZS_NEW) $(TZS)
839ba2b2efdSGlen Barber
840ba2b2efdSGlen Barberlibtz.a:	$(LIBOBJS)
841e350c46aSBaptiste Daroussin		rm -f $@
842eebb9c2cSPhilip Paeps		$(AR) $(ARFLAGS) $@ $(LIBOBJS)
843ba2b2efdSGlen Barber		$(RANLIB) $@
844ba2b2efdSGlen Barber
845ba2b2efdSGlen Barberdate:		$(DATEOBJS)
846ba2b2efdSGlen Barber		$(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(DATEOBJS) $(LDLIBS)
847ba2b2efdSGlen Barber
848ba2b2efdSGlen Barbertzselect:	tzselect.ksh version
849e273650fSPhilip Paeps		read -r VERSION <version && sed \
850eebb9c2cSPhilip Paeps		  -e "s'#!/bin/bash'#!"'$(KSHELL)'\' \
851eebb9c2cSPhilip Paeps		  -e s\''\(AWK\)=[^}]*'\''\1=\'\''$(AWK)\'\'\' \
852eebb9c2cSPhilip Paeps		  -e s\''\(PKGVERSION\)=.*'\''\1=\'\''($(PACKAGE)) \'\'\' \
853eebb9c2cSPhilip Paeps		  -e s\''\(REPORT_BUGS_TO\)=.*'\''\1=\'\''$(BUGEMAIL)\'\'\' \
854eebb9c2cSPhilip Paeps		  -e s\''\(TZDIR\)=[^}]*'\''\1=\'\''$(TZDIR)\'\'\' \
855eebb9c2cSPhilip Paeps		  -e s\''\(TZVERSION\)=.*'\''\1=\'"'$$VERSION\\''" \
856ba2b2efdSGlen Barber		  <$@.ksh >$@.out
857ba2b2efdSGlen Barber		chmod +x $@.out
858ba2b2efdSGlen Barber		mv $@.out $@
859ba2b2efdSGlen Barber
860*46226b01SPhilip Paepscheck: check_mild back.ck now.ck
861e273650fSPhilip Paepscheck_mild: check_web check_zishrink \
862e273650fSPhilip Paeps  character-set.ck white-space.ck links.ck mainguard.ck \
863*46226b01SPhilip Paeps  name-lengths.ck slashed-abbrs.ck sorted.ck \
864e273650fSPhilip Paeps  tables.ck ziguard.ck tzs.ck
865ba2b2efdSGlen Barber
866eebb9c2cSPhilip Paeps# True if UTF8_LOCALE does not work;
867eebb9c2cSPhilip Paeps# otherwise, false but with LC_ALL set to $(UTF8_LOCALE).
868eebb9c2cSPhilip PaepsUTF8_LOCALE_MISSING = \
869eebb9c2cSPhilip Paeps  { test ! '$(UTF8_LOCALE)' \
870eebb9c2cSPhilip Paeps    || ! printf 'A\304\200B\n' \
871eebb9c2cSPhilip Paeps         | LC_ALL='$(UTF8_LOCALE)' grep -q '^A.B$$' >/dev/null 2>&1 \
872e273650fSPhilip Paeps    || { export LC_ALL='$(UTF8_LOCALE)'; false; }; }
873eebb9c2cSPhilip Paeps
874e273650fSPhilip Paepscharacter-set.ck: $(ENCHILADA)
875eebb9c2cSPhilip Paeps	$(UTF8_LOCALE_MISSING) || { \
876ba2b2efdSGlen Barber		sharp='#' && \
877ba2b2efdSGlen Barber		! grep -Env $(SAFE_LINE) $(MANS) date.1 $(MANTXTS) \
878ba2b2efdSGlen Barber			$(MISC) $(SOURCES) $(WEB_PAGES) \
87993d120dbSPhilip Paeps			CONTRIBUTING LICENSE README SECURITY \
8808d7edd17SPhilip Paeps			version tzdata.zi && \
88189abb9f8SPhilip Paeps		! grep -Env $(SAFE_LINE)'|^UNUSUAL_OK_'$(OK_CHAR)'*$$' \
88246bee4edSPhilip Paeps			Makefile && \
883afb91be3SPhilip Paeps		! grep -Env $(SAFE_SHARP_LINE) $(TDATA_TO_CHECK) backzone \
88412a899b6SPhilip Paeps			leapseconds zone.tab && \
8858d7edd17SPhilip Paeps		! grep -Env $(OK_LINE) $(ENCHILADA); \
8868d7edd17SPhilip Paeps	}
88789abb9f8SPhilip Paeps	touch $@
888ba2b2efdSGlen Barber
889e273650fSPhilip Paepswhite-space.ck: $(ENCHILADA)
890eebb9c2cSPhilip Paeps	$(UTF8_LOCALE_MISSING) || { \
891e273650fSPhilip Paeps		enchilada='$(ENCHILADA)' && \
892e273650fSPhilip Paeps		patfmt=' \t|[\f\r\v]' && pat=$$(printf "$$patfmt\\n") && \
893eebb9c2cSPhilip Paeps		! grep -En "$$pat|[$s]\$$" \
894e273650fSPhilip Paeps		    $${enchilada%leap-seconds.list*} \
895e273650fSPhilip Paeps		    $${enchilada#*leap-seconds.list}; \
896eebb9c2cSPhilip Paeps	}
89789abb9f8SPhilip Paeps	touch $@
898ba2b2efdSGlen Barber
8999f9fc6bbSPhilip PaepsPRECEDES_FILE_NAME = ^(Zone|Link[$s]+[^$s]+)[$s]+
9009f9fc6bbSPhilip PaepsFILE_NAME_COMPONENT_TOO_LONG = $(PRECEDES_FILE_NAME)[^$s]*[^/$s]{15}
9018d7edd17SPhilip Paeps
902e273650fSPhilip Paepsname-lengths.ck: $(TDATA_TO_CHECK) backzone
903e273650fSPhilip Paeps		:;! grep -En '$(FILE_NAME_COMPONENT_TOO_LONG)' \
904afb91be3SPhilip Paeps			$(TDATA_TO_CHECK) backzone
90589abb9f8SPhilip Paeps		touch $@
9068d7edd17SPhilip Paeps
907e273650fSPhilip Paepsmainguard.ck: main.zi
908e273650fSPhilip Paeps		test '$(PACKRATLIST)' || \
909e273650fSPhilip Paeps		  cat $(TDATA) $(PACKRATDATA) | diff -u - main.zi
910e273650fSPhilip Paeps		touch $@
911e273650fSPhilip Paeps
9129f9fc6bbSPhilip PaepsPRECEDES_STDOFF = ^(Zone[$s]+[^$s]+)?[$s]+
9139f9fc6bbSPhilip PaepsSTDOFF = [-+]?[0-9:.]+
9149f9fc6bbSPhilip PaepsRULELESS_SAVE = (-|$(STDOFF)[sd]?)
9159f9fc6bbSPhilip PaepsRULELESS_SLASHED_ABBRS = \
9169f9fc6bbSPhilip Paeps  $(PRECEDES_STDOFF)$(STDOFF)[$s]+$(RULELESS_SAVE)[$s]+[^$s]*/
9179f9fc6bbSPhilip Paeps
918e273650fSPhilip Paepsslashed-abbrs.ck: $(TDATA_TO_CHECK)
919e273650fSPhilip Paeps		:;! grep -En '$(RULELESS_SLASHED_ABBRS)' $(TDATA_TO_CHECK)
9209f9fc6bbSPhilip Paeps		touch $@
9219f9fc6bbSPhilip Paeps
922ba2b2efdSGlen BarberCHECK_CC_LIST = { n = split($$1,a,/,/); for (i=2; i<=n; i++) print a[1], a[i]; }
923ba2b2efdSGlen Barber
924e273650fSPhilip Paepssorted.ck: backward backzone
925cf1ad535SPhilip Paeps		$(AWK) '/^Link/ {printf "%.5d %s\n", g, $$3} !/./ {g++}' \
9269142a2a3SPhilip Paeps		  backward | LC_ALL=C sort -cu
927e273650fSPhilip Paeps		$(AWK) '/^Zone.*\// {print $$2}' backzone | LC_ALL=C sort -cu
92889abb9f8SPhilip Paeps		touch $@
929ba2b2efdSGlen Barber
930e273650fSPhilip Paepsback.ck: checklinks.awk $(TDATA_TO_CHECK)
9319142a2a3SPhilip Paeps		$(AWK) \
9329142a2a3SPhilip Paeps		  -v DATAFORM=$(DATAFORM) \
9339142a2a3SPhilip Paeps		  -v backcheck=backward \
9349142a2a3SPhilip Paeps		  -f checklinks.awk $(TDATA_TO_CHECK)
935cf1ad535SPhilip Paeps		touch $@
936cf1ad535SPhilip Paeps
937e273650fSPhilip Paepslinks.ck: checklinks.awk tzdata.zi
9389142a2a3SPhilip Paeps		$(AWK) \
9399142a2a3SPhilip Paeps		  -v DATAFORM=$(DATAFORM) \
9409142a2a3SPhilip Paeps		  -f checklinks.awk tzdata.zi
94189abb9f8SPhilip Paeps		touch $@
942ba2b2efdSGlen Barber
943eebb9c2cSPhilip Paeps# Check timestamps from now through 28 years from now, to make sure
944eebb9c2cSPhilip Paeps# that zonenow.tab contains all sequences of planned timestamps,
945eebb9c2cSPhilip Paeps# without any duplicate sequences.  In theory this might require
946e273650fSPhilip Paeps# 2800+ years but that would take a long time to check.
947e273650fSPhilip PaepsCHECK_NOW_TIMESTAMP = $$(./date +%s)
948eebb9c2cSPhilip PaepsCHECK_NOW_FUTURE_YEARS = 28
949e273650fSPhilip PaepsCHECK_NOW_FUTURE_SECS = $(CHECK_NOW_FUTURE_YEARS) * 366 * 24 * 60 * 60
950e273650fSPhilip Paepsnow.ck: checknow.awk date tzdata.zi zdump zic zone1970.tab zonenow.tab
951e273650fSPhilip Paeps		rm -fr $@d
952e273650fSPhilip Paeps		mkdir $@d
953e273650fSPhilip Paeps		./zic -d $@d tzdata.zi
954eebb9c2cSPhilip Paeps		now=$(CHECK_NOW_TIMESTAMP) && \
955e273650fSPhilip Paeps		  future=$$(($(CHECK_NOW_FUTURE_SECS) + $$now)) && \
956eebb9c2cSPhilip Paeps		  ./zdump -i -t $$now,$$future \
957e273650fSPhilip Paeps		     $$(find "$$PWD/$@d"/????*/ -type f) \
958e273650fSPhilip Paeps		     >$@d/zdump-now.tab && \
959e273650fSPhilip Paeps		  ./zdump -i -t 0,$$future \
960e273650fSPhilip Paeps		     $$(find "$$PWD/$@d" -name Etc -prune \
961e273650fSPhilip Paeps			  -o -type f ! -name '*.tab' -print) \
962e273650fSPhilip Paeps		     >$@d/zdump-1970.tab
963eebb9c2cSPhilip Paeps		$(AWK) \
964e273650fSPhilip Paeps		  -v zdump_table=$@d/zdump-now.tab \
965eebb9c2cSPhilip Paeps		  -f checknow.awk zonenow.tab
966e273650fSPhilip Paeps		$(AWK) \
967e273650fSPhilip Paeps		  'BEGIN {print "-\t-\tUTC"} /^Zone/ {print "-\t-\t" $$2}' \
968e273650fSPhilip Paeps		  $(PRIMARY_YDATA) backward factory | \
969e273650fSPhilip Paeps		 $(AWK) \
970e273650fSPhilip Paeps		   -v zdump_table=$@d/zdump-1970.tab \
971e273650fSPhilip Paeps		   -f checknow.awk
972e273650fSPhilip Paeps		rm -fr $@d
973eebb9c2cSPhilip Paeps		touch $@
974eebb9c2cSPhilip Paeps
975e273650fSPhilip Paepstables.ck: checktab.awk $(YDATA) backward zone.tab zone1970.tab
976ba2b2efdSGlen Barber		for tab in $(ZONETABLES); do \
97794c2d487SPhilip Paeps		  test "$$tab" = zone.tab && links='$(BACKWARD)' || links=''; \
97894c2d487SPhilip Paeps		  $(AWK) -f checktab.awk -v zone_table=$$tab $(YDATA) $$links \
979ba2b2efdSGlen Barber		    || exit; \
980ba2b2efdSGlen Barber		done
98189abb9f8SPhilip Paeps		touch $@
982ba2b2efdSGlen Barber
983e273650fSPhilip Paepstzs.ck: $(TZS) $(TZS_NEW)
98489abb9f8SPhilip Paeps		if test -s $(TZS); then \
985e273650fSPhilip Paeps		  $(SETUP_DIFF_TZS) && $$DIFF_TZS $(TZS) $(TZS_NEW); \
98689abb9f8SPhilip Paeps		else \
98789abb9f8SPhilip Paeps		  cp $(TZS_NEW) $(TZS); \
98889abb9f8SPhilip Paeps		fi
98989abb9f8SPhilip Paeps		touch $@
990ba2b2efdSGlen Barber
9912c5e84ccSPhilip Paepscheck_web:	$(CHECK_WEB_PAGES)
992e273650fSPhilip Paeps.SUFFIXES: .ck .html
993e273650fSPhilip Paeps.html.ck:
994e273650fSPhilip Paeps		{ ! ($(CURL) --version) >/dev/null 2>&1 || \
9952c5e84ccSPhilip Paeps		    $(CURL) -sS --url https://validator.w3.org/nu/ -F out=gnu \
996e273650fSPhilip Paeps		          -F file=@$<; } >$@.out && \
9972c5e84ccSPhilip Paeps		  test ! -s $@.out || { cat $@.out; exit 1; }
9982c5e84ccSPhilip Paeps		mv $@.out $@
9998d7edd17SPhilip Paeps
1000e273650fSPhilip Paepsziguard.ck: rearguard.zi vanguard.zi ziguard.awk
10019f9fc6bbSPhilip Paeps		$(AWK) -v DATAFORM=rearguard -f ziguard.awk vanguard.zi | \
10029f9fc6bbSPhilip Paeps		  diff -u rearguard.zi -
10039f9fc6bbSPhilip Paeps		$(AWK) -v DATAFORM=vanguard -f ziguard.awk rearguard.zi | \
10049f9fc6bbSPhilip Paeps		  diff -u vanguard.zi -
10059f9fc6bbSPhilip Paeps		touch $@
10069f9fc6bbSPhilip Paeps
100746bee4edSPhilip Paeps# Check that zishrink.awk does not alter the data, and that ziguard.awk
100846bee4edSPhilip Paeps# preserves main-format data.
1009e273650fSPhilip Paepscheck_zishrink: zishrink-posix.ck zishrink-right.ck
1010e273650fSPhilip Paepszishrink-posix.ck zishrink-right.ck: \
10119f9fc6bbSPhilip Paeps  zic leapseconds $(PACKRATDATA) $(PACKRATLIST) \
10129f9fc6bbSPhilip Paeps  $(TDATA) $(DATAFORM).zi tzdata.zi
1013e273650fSPhilip Paeps		rm -fr $@d t-$@d shrunk-$@d
1014e273650fSPhilip Paeps		mkdir $@d t-$@d shrunk-$@d
101589abb9f8SPhilip Paeps		case $@ in \
1016e273650fSPhilip Paeps		  *right*) leap='-L leapseconds';; \
10178d7edd17SPhilip Paeps		  *) leap=;; \
10188d7edd17SPhilip Paeps		esac && \
1019e273650fSPhilip Paeps		  $(ZIC) $$leap -d $@d $(DATAFORM).zi && \
1020e273650fSPhilip Paeps		  $(ZIC) $$leap -d shrunk-$@d tzdata.zi && \
10219f9fc6bbSPhilip Paeps		  case $(DATAFORM),$(PACKRATLIST) in \
10229f9fc6bbSPhilip Paeps		    main,) \
1023e273650fSPhilip Paeps		      $(ZIC) $$leap -d t-$@d $(TDATA) && \
10248d7edd17SPhilip Paeps		      $(AWK) '/^Rule/' $(TDATA) | \
1025e273650fSPhilip Paeps			$(ZIC) $$leap -d t-$@d - $(PACKRATDATA) && \
1026e273650fSPhilip Paeps		      diff -r $@d t-$@d;; \
102789abb9f8SPhilip Paeps		  esac
1028e273650fSPhilip Paeps		diff -r $@d shrunk-$@d
1029e273650fSPhilip Paeps		rm -fr $@d t-$@d shrunk-$@d
103089abb9f8SPhilip Paeps		touch $@
1031ba2b2efdSGlen Barber
1032ba2b2efdSGlen Barberclean_misc:
1033e273650fSPhilip Paeps		rm -fr *.ckd *.dir
1034e273650fSPhilip Paeps		rm -f *.ck *.core *.o *.out core core.* \
1035eebb9c2cSPhilip Paeps		  date tzdir.h tzselect version.h zdump zic libtz.a
1036ba2b2efdSGlen Barberclean:		clean_misc
1037e273650fSPhilip Paeps		rm -fr tzdb-*/
1038ad48359aSPhilip Paeps		rm -f *.zi $(TZS_NEW)
1039ba2b2efdSGlen Barber
1040ba2b2efdSGlen Barbermaintainer-clean: clean
1041ba2b2efdSGlen Barber		@echo 'This command is intended for maintainers to use; it'
1042ba2b2efdSGlen Barber		@echo 'deletes files that may need special tools to rebuild.'
1043ba2b2efdSGlen Barber		rm -f leapseconds version $(MANTXTS) $(TZS) *.asc *.tar.*
1044ba2b2efdSGlen Barber
1045ba2b2efdSGlen Barbernames:
1046ba2b2efdSGlen Barber		@echo $(ENCHILADA)
1047ba2b2efdSGlen Barber
1048e273650fSPhilip Paepspublic: check public.ck $(CHECK_TIME_T_ALTERNATIVES) \
1049ba2b2efdSGlen Barber		tarballs signatures
1050ba2b2efdSGlen Barber
1051ba2b2efdSGlen Barberdate.1.txt:	date.1
1052ba2b2efdSGlen Barbernewctime.3.txt:	newctime.3
1053ba2b2efdSGlen Barbernewstrftime.3.txt: newstrftime.3
1054ba2b2efdSGlen Barbernewtzset.3.txt:	newtzset.3
1055ba2b2efdSGlen Barbertime2posix.3.txt: time2posix.3
1056ba2b2efdSGlen Barbertzfile.5.txt:	tzfile.5
1057ba2b2efdSGlen Barbertzselect.8.txt:	tzselect.8
1058ba2b2efdSGlen Barberzdump.8.txt:	zdump.8
1059ba2b2efdSGlen Barberzic.8.txt:	zic.8
1060ba2b2efdSGlen Barber
1061ba2b2efdSGlen Barber$(MANTXTS):	workman.sh
1062e273650fSPhilip Paeps		LC_ALL=C sh workman.sh $(@:.txt=) >$@.out
1063ba2b2efdSGlen Barber		mv $@.out $@
1064ba2b2efdSGlen Barber
1065dc505d53SPhilip Paeps# Set file timestamps deterministically if possible,
1066dc505d53SPhilip Paeps# so that tarballs containing the timestamps are reproducible.
1067dc505d53SPhilip Paeps#
1068dc505d53SPhilip Paeps# '$(SET_TIMESTAMP_N) N DEST A B C ...' sets the timestamp of the
1069dc505d53SPhilip Paeps# file DEST to the maximum of the timestamps of the files A B C ...,
1070dc505d53SPhilip Paeps# plus N if GNU ls and touch are available.
1071dc505d53SPhilip PaepsSET_TIMESTAMP_N = sh -c '\
1072dc505d53SPhilip Paeps  n=$$0 dest=$$1; shift; \
1073eebb9c2cSPhilip Paeps  <"$$dest" && \
1074dc505d53SPhilip Paeps  if test $$n != 0 && \
1075e273650fSPhilip Paeps     lsout=$$(ls -nt --time-style="+%s" "$$@" 2>/dev/null); then \
1076dc505d53SPhilip Paeps    set x $$lsout && \
1077e273650fSPhilip Paeps    timestamp=$$(($$7 + $$n)) && \
1078eebb9c2cSPhilip Paeps    echo "+ touch -md @$$timestamp $$dest" && \
1079eebb9c2cSPhilip Paeps    touch -md @$$timestamp "$$dest"; \
1080eebb9c2cSPhilip Paeps  else \
1081e273650fSPhilip Paeps    newest=$$(ls -t "$$@" | sed 1q) && \
1082eebb9c2cSPhilip Paeps    echo "+ touch -mr $$newest $$dest" && \
1083eebb9c2cSPhilip Paeps    touch -mr "$$newest" "$$dest"; \
1084eebb9c2cSPhilip Paeps  fi'
1085dc505d53SPhilip Paeps# If DEST depends on A B C ... in this Makefile, callers should use
1086dc505d53SPhilip Paeps# $(SET_TIMESTAMP_DEP) DEST A B C ..., for the benefit of any
1087dc505d53SPhilip Paeps# downstream 'make' that considers equal timestamps to be out of date.
1088dc505d53SPhilip Paeps# POSIX allows this 'make' behavior, and HP-UX 'make' does it.
1089dc505d53SPhilip Paeps# If all that matters is that the timestamp be reproducible
1090dc505d53SPhilip Paeps# and plausible, use $(SET_TIMESTAMP).
1091dc505d53SPhilip PaepsSET_TIMESTAMP = $(SET_TIMESTAMP_N) 0
1092dc505d53SPhilip PaepsSET_TIMESTAMP_DEP = $(SET_TIMESTAMP_N) 1
1093dc505d53SPhilip Paeps
1094ba2b2efdSGlen Barber# Set the timestamps to those of the git repository, if available,
1095ba2b2efdSGlen Barber# and if the files have not changed since then.
1096dc505d53SPhilip Paeps# This uses GNU 'ls --time-style=+%s', which outputs the seconds count,
1097dc505d53SPhilip Paeps# and GNU 'touch -d@N FILE', where N is the number of seconds since 1970.
1098dc505d53SPhilip Paeps# If git or GNU is absent, don't bother to sync with git timestamps.
1099ba2b2efdSGlen Barber# Also, set the timestamp of each prebuilt file like 'leapseconds'
1100ba2b2efdSGlen Barber# to be the maximum of the files it depends on.
110189abb9f8SPhilip Paepsset-timestamps.out: $(EIGHT_YARDS)
1102ba2b2efdSGlen Barber		rm -f $@
1103ba2b2efdSGlen Barber		if (type git) >/dev/null 2>&1 && \
1104e273650fSPhilip Paeps		   files=$$(git ls-files $(EIGHT_YARDS)) && \
1105ba2b2efdSGlen Barber		   touch -md @1 test.out; then \
1106ba2b2efdSGlen Barber		  rm -f test.out && \
1107ba2b2efdSGlen Barber		  for file in $$files; do \
1108*46226b01SPhilip Paeps		    if git diff --quiet HEAD $$file; then \
1109e273650fSPhilip Paeps		      time=$$(TZ=UTC0 git log -1 \
1110eebb9c2cSPhilip Paeps			--format='tformat:%cd' \
1111eebb9c2cSPhilip Paeps			--date='format:%Y-%m-%dT%H:%M:%SZ' \
1112e273650fSPhilip Paeps			$$file) && \
1113eebb9c2cSPhilip Paeps		      echo "+ touch -md $$time $$file" && \
1114eebb9c2cSPhilip Paeps		      touch -md $$time $$file; \
1115ba2b2efdSGlen Barber		    else \
1116ba2b2efdSGlen Barber		      echo >&2 "$$file: warning: does not match repository"; \
1117ba2b2efdSGlen Barber		    fi || exit; \
1118ba2b2efdSGlen Barber		  done; \
1119ba2b2efdSGlen Barber		fi
1120dc505d53SPhilip Paeps		$(SET_TIMESTAMP_DEP) leapseconds $(LEAP_DEPS)
1121e273650fSPhilip Paeps		for file in $(MANTXTS); do \
1122e273650fSPhilip Paeps		  $(SET_TIMESTAMP_DEP) $$file $${file%.txt} workman.sh || \
1123ba2b2efdSGlen Barber		    exit; \
1124ba2b2efdSGlen Barber		done
1125dc505d53SPhilip Paeps		$(SET_TIMESTAMP_DEP) version $(VERSION_DEPS)
1126dc505d53SPhilip Paeps		$(SET_TIMESTAMP_DEP) tzdata.zi $(TZDATA_ZI_DEPS)
1127ba2b2efdSGlen Barber		touch $@
112889abb9f8SPhilip Paepsset-tzs-timestamp.out: $(TZS)
1129dc505d53SPhilip Paeps		$(SET_TIMESTAMP_DEP) $(TZS) $(TZS_DEPS)
113089abb9f8SPhilip Paeps		touch $@
1131ba2b2efdSGlen Barber
1132ba2b2efdSGlen Barber# The zics below ensure that each data file can stand on its own.
1133ba2b2efdSGlen Barber# We also do an all-files run to catch links to links.
1134ba2b2efdSGlen Barber
1135e273650fSPhilip Paepspublic.ck: $(VERSION_DEPS)
1136e273650fSPhilip Paeps		rm -fr $@d
1137e273650fSPhilip Paeps		mkdir $@d
1138e273650fSPhilip Paeps		ln $(VERSION_DEPS) $@d
1139e273650fSPhilip Paeps		cd $@d \
1140eebb9c2cSPhilip Paeps		  && $(MAKE) CFLAGS='$(GCC_DEBUG_FLAGS)' TZDIR='$(TZDIR)' ALL
1141e273650fSPhilip Paeps		for i in $(TDATA_TO_CHECK) \
1142e273650fSPhilip Paeps		    tzdata.zi vanguard.zi main.zi rearguard.zi; \
1143e35a01eeSPhilip Paeps		do \
1144e273650fSPhilip Paeps		  $@d/zic -v -d $@d/zoneinfo $@d/$$i || exit; \
114589abb9f8SPhilip Paeps		done
1146e273650fSPhilip Paeps		$@d/zic -v -d $@d/zoneinfo-all $(TDATA_TO_CHECK)
114794c2d487SPhilip Paeps		:
114894c2d487SPhilip Paeps		: Also check 'backzone' syntax.
1149e273650fSPhilip Paeps		rm $@d/main.zi
1150e273650fSPhilip Paeps		cd $@d && $(MAKE) PACKRATDATA=backzone main.zi
1151e273650fSPhilip Paeps		$@d/zic -d $@d/zoneinfo main.zi
1152e273650fSPhilip Paeps		rm $@d/main.zi
1153e273650fSPhilip Paeps		cd $@d && \
11549f9fc6bbSPhilip Paeps		  $(MAKE) PACKRATDATA=backzone PACKRATLIST=zone.tab main.zi
1155e273650fSPhilip Paeps		$@d/zic -d $@d/zoneinfo main.zi
115694c2d487SPhilip Paeps		:
1157e273650fSPhilip Paeps		rm -fr $@d
115889abb9f8SPhilip Paeps		touch $@
1159ba2b2efdSGlen Barber
1160ba2b2efdSGlen Barber# Check that the code works under various alternative
1161ba2b2efdSGlen Barber# implementations of time_t.
116289abb9f8SPhilip Paepscheck_time_t_alternatives: $(TIME_T_ALTERNATIVES)
116389abb9f8SPhilip Paeps$(TIME_T_ALTERNATIVES_TAIL): $(TIME_T_ALTERNATIVES_HEAD)
116489abb9f8SPhilip Paeps$(TIME_T_ALTERNATIVES): $(VERSION_DEPS)
1165e273650fSPhilip Paeps		rm -fr $@d
1166e273650fSPhilip Paeps		mkdir $@d
1167e273650fSPhilip Paeps		ln $(VERSION_DEPS) $@d
116889abb9f8SPhilip Paeps		case $@ in \
1169e273650fSPhilip Paeps		  *32_t*) range=-2147483648,2147483648;; \
117089abb9f8SPhilip Paeps		  u*) range=0,4294967296;; \
117189abb9f8SPhilip Paeps		  *) range=-4294967296,4294967296;; \
117289abb9f8SPhilip Paeps		esac && \
1173e273650fSPhilip Paeps		wd=$$PWD && \
1174e273650fSPhilip Paeps		zones=$$($(AWK) '/^[^#]/ { print $$3 }' <zone1970.tab) && \
117589abb9f8SPhilip Paeps		if test $@ = $(TIME_T_ALTERNATIVES_HEAD); then \
117689abb9f8SPhilip Paeps		  range_target=; \
117789abb9f8SPhilip Paeps		else \
117889abb9f8SPhilip Paeps		  range_target=to$$range.tzs; \
117989abb9f8SPhilip Paeps		fi && \
1180e273650fSPhilip Paeps		(cd $@d && \
1181e273650fSPhilip Paeps		  $(MAKE) TOPDIR="$$wd/$@d" \
1182e273650fSPhilip Paeps		    CFLAGS='$(CFLAGS) -Dtime_tz='"'$(@:.ck=)'" \
118389abb9f8SPhilip Paeps		    REDO='$(REDO)' \
1184e273650fSPhilip Paeps		    D="$$wd/$@d" \
118589abb9f8SPhilip Paeps		    TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \
118689abb9f8SPhilip Paeps		    install $$range_target) && \
118789abb9f8SPhilip Paeps		test $@ = $(TIME_T_ALTERNATIVES_HEAD) || { \
1188e273650fSPhilip Paeps		  (cd $(TIME_T_ALTERNATIVES_HEAD)d && \
1189e273650fSPhilip Paeps		    $(MAKE) TOPDIR="$$wd/$@d" \
119089abb9f8SPhilip Paeps		      TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \
1191e273650fSPhilip Paeps		      D="$$wd/$@d" \
119289abb9f8SPhilip Paeps		      to$$range.tzs) && \
1193e273650fSPhilip Paeps		  $(SETUP_DIFF_TZS) && \
1194e273650fSPhilip Paeps		  $$DIFF_TZS $(TIME_T_ALTERNATIVES_HEAD)d/to$$range.tzs \
1195e273650fSPhilip Paeps			  $@d/to$$range.tzs && \
1196ba2b2efdSGlen Barber		  if diff -q Makefile Makefile 2>/dev/null; then \
1197ba2b2efdSGlen Barber		    quiet_option='-q'; \
1198ba2b2efdSGlen Barber		  else \
1199ba2b2efdSGlen Barber		    quiet_option=''; \
1200ba2b2efdSGlen Barber		  fi && \
1201e273650fSPhilip Paeps		    diff $$quiet_option -r $(TIME_T_ALTERNATIVES_HEAD)d/etc \
1202e273650fSPhilip Paeps					   $@d/etc && \
1203ba2b2efdSGlen Barber		    diff $$quiet_option -r \
1204e273650fSPhilip Paeps		      $(TIME_T_ALTERNATIVES_HEAD)d/usr/share \
1205e273650fSPhilip Paeps		      $@d/usr/share; \
120689abb9f8SPhilip Paeps		}
120789abb9f8SPhilip Paeps		touch $@
1208ba2b2efdSGlen Barber
1209d81c2dd9SPhilip PaepsTRADITIONAL_ASC = \
1210d81c2dd9SPhilip Paeps  tzcode$(VERSION).tar.gz.asc \
1211d81c2dd9SPhilip Paeps  tzdata$(VERSION).tar.gz.asc
121289abb9f8SPhilip PaepsREARGUARD_ASC = \
121389abb9f8SPhilip Paeps  tzdata$(VERSION)-rearguard.tar.gz.asc
121489abb9f8SPhilip PaepsALL_ASC = $(TRADITIONAL_ASC) $(REARGUARD_ASC) \
1215d81c2dd9SPhilip Paeps  tzdb-$(VERSION).tar.lz.asc
1216d81c2dd9SPhilip Paeps
12179f9fc6bbSPhilip Paepstarballs rearguard_tarballs tailored_tarballs traditional_tarballs \
121889abb9f8SPhilip Paepssignatures rearguard_signatures traditional_signatures: \
12199f9fc6bbSPhilip Paeps  version set-timestamps.out rearguard.zi vanguard.zi
1220e273650fSPhilip Paeps		read -r VERSION <version && \
1221dc505d53SPhilip Paeps		$(MAKE) AWK='$(AWK)' VERSION="$$VERSION" $@_version
1222ba2b2efdSGlen Barber
122346bee4edSPhilip Paeps# These *_version rules are intended for use if VERSION is set by some
122446bee4edSPhilip Paeps# other means.  Ordinarily these rules are used only by the above
122546bee4edSPhilip Paeps# non-_version rules, which set VERSION on the 'make' command line.
122689abb9f8SPhilip Paepstarballs_version: traditional_tarballs_version rearguard_tarballs_version \
1227d81c2dd9SPhilip Paeps  tzdb-$(VERSION).tar.lz
122889abb9f8SPhilip Paepsrearguard_tarballs_version: \
122989abb9f8SPhilip Paeps  tzdata$(VERSION)-rearguard.tar.gz
1230ba2b2efdSGlen Barbertraditional_tarballs_version: \
1231ba2b2efdSGlen Barber  tzcode$(VERSION).tar.gz tzdata$(VERSION).tar.gz
12329f9fc6bbSPhilip Paepstailored_tarballs_version: \
12339f9fc6bbSPhilip Paeps  tzdata$(VERSION)-tailored.tar.gz
1234d81c2dd9SPhilip Paepssignatures_version: $(ALL_ASC)
123589abb9f8SPhilip Paepsrearguard_signatures_version: $(REARGUARD_ASC)
1236d81c2dd9SPhilip Paepstraditional_signatures_version: $(TRADITIONAL_ASC)
1237ba2b2efdSGlen Barber
1238ba2b2efdSGlen Barbertzcode$(VERSION).tar.gz: set-timestamps.out
1239e273650fSPhilip Paeps		$(SETUP_TAR) && \
1240e273650fSPhilip Paeps		$$TAR -cf - \
1241ba2b2efdSGlen Barber		    $(COMMON) $(DOCS) $(SOURCES) | \
1242ba2b2efdSGlen Barber		  gzip $(GZIPFLAGS) >$@.out
1243ba2b2efdSGlen Barber		mv $@.out $@
1244ba2b2efdSGlen Barber
1245ba2b2efdSGlen Barbertzdata$(VERSION).tar.gz: set-timestamps.out
1246e273650fSPhilip Paeps		$(SETUP_TAR) && \
1247e273650fSPhilip Paeps		$$TAR -cf - $(TZDATA_DIST) | \
1248ba2b2efdSGlen Barber		  gzip $(GZIPFLAGS) >$@.out
1249ba2b2efdSGlen Barber		mv $@.out $@
1250ba2b2efdSGlen Barber
12519f9fc6bbSPhilip Paeps# Create empty files with a reproducible timestamp.
12529f9fc6bbSPhilip PaepsCREATE_EMPTY = TZ=UTC0 touch -mt 202010122253.00
12539f9fc6bbSPhilip Paeps
12549f9fc6bbSPhilip Paeps# The obsolescent *rearguard* targets and related macros are present
12559f9fc6bbSPhilip Paeps# for backwards compatibility with tz releases 2018e through 2022a.
12569f9fc6bbSPhilip Paeps# They should go away eventually.  To build rearguard tarballs you
12579f9fc6bbSPhilip Paeps# can instead use 'make DATAFORM=rearguard tailored_tarballs'.
1258d81c2dd9SPhilip Paepstzdata$(VERSION)-rearguard.tar.gz: rearguard.zi set-timestamps.out
12599f9fc6bbSPhilip Paeps		rm -fr $@.dir
12609f9fc6bbSPhilip Paeps		mkdir $@.dir
12619f9fc6bbSPhilip Paeps		ln $(TZDATA_DIST) $@.dir
12629f9fc6bbSPhilip Paeps		cd $@.dir && rm -f $(TDATA) $(PACKRATDATA) version
1263d81c2dd9SPhilip Paeps		for f in $(TDATA) $(PACKRATDATA); do \
12649f9fc6bbSPhilip Paeps		  rearf=$@.dir/$$f; \
1265d81c2dd9SPhilip Paeps		  $(AWK) -v DATAFORM=rearguard -f ziguard.awk $$f >$$rearf && \
1266dc505d53SPhilip Paeps		  $(SET_TIMESTAMP_DEP) $$rearf ziguard.awk $$f || exit; \
1267d81c2dd9SPhilip Paeps		done
12689f9fc6bbSPhilip Paeps		sed '1s/$$/-rearguard/' <version >$@.dir/version
1269e7e2d659SPhilip Paeps		: The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier.
12709f9fc6bbSPhilip Paeps		$(CREATE_EMPTY) $@.dir/pacificnew
1271eebb9c2cSPhilip Paeps		touch -mr version $@.dir/version
1272e273650fSPhilip Paeps		$(SETUP_TAR) && \
12739f9fc6bbSPhilip Paeps		  (cd $@.dir && \
1274e273650fSPhilip Paeps		   $$TAR -cf - \
12759f9fc6bbSPhilip Paeps			$(TZDATA_DIST) pacificnew | \
1276d81c2dd9SPhilip Paeps		     gzip $(GZIPFLAGS)) >$@.out
1277d81c2dd9SPhilip Paeps		mv $@.out $@
1278d81c2dd9SPhilip Paeps
12799f9fc6bbSPhilip Paeps# Create a tailored tarball suitable for TZUpdater and compatible tools.
12809f9fc6bbSPhilip Paeps# For example, 'make DATAFORM=vanguard tailored_tarballs' makes a tarball
12819f9fc6bbSPhilip Paeps# useful for testing whether TZUpdater supports vanguard form.
12829f9fc6bbSPhilip Paeps# The generated tarball is not byte-for-byte equivalent to a hand-tailored
12839f9fc6bbSPhilip Paeps# traditional tarball, as data entries are put into 'etcetera' even if they
12849f9fc6bbSPhilip Paeps# came from some other source file.  However, the effect should be the same
12859f9fc6bbSPhilip Paeps# for ordinary use, which reads all the source files.
12869f9fc6bbSPhilip Paepstzdata$(VERSION)-tailored.tar.gz: set-timestamps.out
12879f9fc6bbSPhilip Paeps		rm -fr $@.dir
12889f9fc6bbSPhilip Paeps		mkdir $@.dir
12899f9fc6bbSPhilip Paeps		: The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier.
1290e273650fSPhilip Paeps		if test $(DATAFORM) = vanguard; then \
1291e273650fSPhilip Paeps		  pacificnew=; \
1292e273650fSPhilip Paeps		else \
1293e273650fSPhilip Paeps		  pacificnew=pacificnew; \
1294e273650fSPhilip Paeps		fi && \
12959f9fc6bbSPhilip Paeps		cd $@.dir && \
12969f9fc6bbSPhilip Paeps		  $(CREATE_EMPTY) $(PRIMARY_YDATA) $(NDATA) backward \
1297e273650fSPhilip Paeps		  $$pacificnew
12989f9fc6bbSPhilip Paeps		(grep '^#' tzdata.zi && echo && cat $(DATAFORM).zi) \
12999f9fc6bbSPhilip Paeps		  >$@.dir/etcetera
1300eebb9c2cSPhilip Paeps		touch -mr tzdata.zi $@.dir/etcetera
13019f9fc6bbSPhilip Paeps		sed -n \
13029f9fc6bbSPhilip Paeps		  -e '/^# *version  *\(.*\)/h' \
13039f9fc6bbSPhilip Paeps		  -e '/^# *ddeps  */H' \
13049f9fc6bbSPhilip Paeps		  -e '$$!d' \
13059f9fc6bbSPhilip Paeps		  -e 'g' \
13069f9fc6bbSPhilip Paeps		  -e 's/^# *version  *//' \
13079f9fc6bbSPhilip Paeps		  -e 's/\n# *ddeps  */-/' \
13089f9fc6bbSPhilip Paeps		  -e 's/ /-/g' \
13099f9fc6bbSPhilip Paeps		  -e 'p' \
13109f9fc6bbSPhilip Paeps		  <tzdata.zi >$@.dir/version
1311eebb9c2cSPhilip Paeps		touch -mr version $@.dir/version
13129f9fc6bbSPhilip Paeps		links= && \
13139f9fc6bbSPhilip Paeps		  for file in $(TZDATA_DIST); do \
13149f9fc6bbSPhilip Paeps		    test -f $@.dir/$$file || links="$$links $$file"; \
13159f9fc6bbSPhilip Paeps		  done && \
13169f9fc6bbSPhilip Paeps		  ln $$links $@.dir
1317e273650fSPhilip Paeps		$(SETUP_TAR) && \
13189f9fc6bbSPhilip Paeps		  (cd $@.dir && \
1319e273650fSPhilip Paeps		   $$TAR -cf - * | gzip $(GZIPFLAGS)) >$@.out
13209f9fc6bbSPhilip Paeps		mv $@.out $@
13219f9fc6bbSPhilip Paeps
132289abb9f8SPhilip Paepstzdb-$(VERSION).tar.lz: set-timestamps.out set-tzs-timestamp.out
1323ba2b2efdSGlen Barber		rm -fr tzdb-$(VERSION)
1324ba2b2efdSGlen Barber		mkdir tzdb-$(VERSION)
1325ba2b2efdSGlen Barber		ln $(ENCHILADA) tzdb-$(VERSION)
1326dc505d53SPhilip Paeps		$(SET_TIMESTAMP) tzdb-$(VERSION) tzdb-$(VERSION)/*
1327e273650fSPhilip Paeps		$(SETUP_TAR) && \
1328e273650fSPhilip Paeps		$$TAR -cf - tzdb-$(VERSION) | lzip -9 >$@.out
1329ba2b2efdSGlen Barber		mv $@.out $@
1330ba2b2efdSGlen Barber
1331ba2b2efdSGlen Barbertzcode$(VERSION).tar.gz.asc: tzcode$(VERSION).tar.gz
1332ba2b2efdSGlen Barbertzdata$(VERSION).tar.gz.asc: tzdata$(VERSION).tar.gz
1333d81c2dd9SPhilip Paepstzdata$(VERSION)-rearguard.tar.gz.asc: tzdata$(VERSION)-rearguard.tar.gz
1334ba2b2efdSGlen Barbertzdb-$(VERSION).tar.lz.asc: tzdb-$(VERSION).tar.lz
1335d81c2dd9SPhilip Paeps$(ALL_ASC):
13362865ab3fSPhilip Paeps		$(GPG) --armor --detach-sign $?
1337ba2b2efdSGlen Barber
133889abb9f8SPhilip PaepsTYPECHECK_CFLAGS = $(CFLAGS) -DTYPECHECK -D__time_t_defined -D_TIME_T
1339e273650fSPhilip Paepstypecheck: long-long.ck unsigned.ck
1340e273650fSPhilip Paepslong-long.ck unsigned.ck: $(VERSION_DEPS)
1341e273650fSPhilip Paeps		rm -fr $@d
1342e273650fSPhilip Paeps		mkdir $@d
1343e273650fSPhilip Paeps		ln $(VERSION_DEPS) $@d
1344e273650fSPhilip Paeps		cd $@d && \
134589abb9f8SPhilip Paeps		  case $@ in \
1346e273650fSPhilip Paeps		    long-long.*) i="long long";; \
1347e273650fSPhilip Paeps		    unsigned.* ) i="unsigned" ;; \
134889abb9f8SPhilip Paeps		  esac && \
134989abb9f8SPhilip Paeps		  $(MAKE) \
135089abb9f8SPhilip Paeps		    CFLAGS="$(TYPECHECK_CFLAGS) \"-Dtime_t=$$i\"" \
1351e273650fSPhilip Paeps		    TOPDIR="$$PWD" \
135289abb9f8SPhilip Paeps		    install
1353e273650fSPhilip Paeps		$@d/zdump -i -c 1970,1971 Europe/Rome
135489abb9f8SPhilip Paeps		touch $@
1355ba2b2efdSGlen Barber
13568d7edd17SPhilip Paepszonenames:	tzdata.zi
13578d7edd17SPhilip Paeps		@$(AWK) '/^Z/ { print $$2 } /^L/ { print $$3 }' tzdata.zi
1358ba2b2efdSGlen Barber
1359*46226b01SPhilip Paepsasctime.o:	private.h
1360ba2b2efdSGlen Barberdate.o:		private.h
1361ba2b2efdSGlen Barberdifftime.o:	private.h
1362*46226b01SPhilip Paepslocaltime.o:	private.h tzdir.h tzfile.h
1363*46226b01SPhilip Paepsstrftime.o:	localtime.c private.h tzdir.h tzfile.h
1364*46226b01SPhilip Paepszdump.o:	private.h version.h
1365*46226b01SPhilip Paepszic.o:		private.h tzdir.h tzfile.h version.h
1366ba2b2efdSGlen Barber
1367ba2b2efdSGlen Barber.PHONY: ALL INSTALL all
1368cf1ad535SPhilip Paeps.PHONY: check check_mild check_time_t_alternatives
13692c5e84ccSPhilip Paeps.PHONY: check_web check_zishrink
13702723c7ffSPhilip Paeps.PHONY: clean clean_misc commit-leap-seconds.list dummy.zd
13712723c7ffSPhilip Paeps.PHONY: fetch-leap-seconds.list force_tzs
1372e273650fSPhilip Paeps.PHONY: install maintainer-clean names
13739f9fc6bbSPhilip Paeps.PHONY: posix_only posix_right public
137489abb9f8SPhilip Paeps.PHONY: rearguard_signatures rearguard_signatures_version
137589abb9f8SPhilip Paeps.PHONY: rearguard_tarballs rearguard_tarballs_version
137689abb9f8SPhilip Paeps.PHONY: right_only right_posix signatures signatures_version
137746bee4edSPhilip Paeps.PHONY: tarballs tarballs_version
137846bee4edSPhilip Paeps.PHONY: traditional_signatures traditional_signatures_version
137946bee4edSPhilip Paeps.PHONY: traditional_tarballs traditional_tarballs_version
13809f9fc6bbSPhilip Paeps.PHONY: tailored_tarballs tailored_tarballs_version
138146bee4edSPhilip Paeps.PHONY: typecheck
1382ba2b2efdSGlen Barber.PHONY: zonenames zones
138346bee4edSPhilip Paeps.PHONY: $(ZDS)
1384