1# Make and install tzdb code and data. 2# This file is in the public domain, so clarified as of 3# 2009-05-17 by Arthur David Olson. 4# Request POSIX conformance; this must be the first non-comment line. 5.POSIX: 6# By default, builds of code and data assume POSIX.1-2001 or later; 7# this assumption can be relaxed by tailoring the build as described below. 8# On older platforms you may need to scrounge for POSIX conformance. 9# For example, on Solaris 10 (2005) with Sun Studio 12 aka Sun C 5.9 (2007), 10# use 'PATH=/usr/xpg4/bin:$PATH make CC=c99'. 11# Reproducible builds of distribution tarballs also need a copy of the 12# Git repository, and assume the behavior of the following programs 13# (or later versions): 14# Git 2.7.0 (2016) 15# GNU Coreutils 6.3 (2006) 16# GNU Tar 1.14 (2004) 17# GnuPG 1.4 (2004) 18# Although tzdb does not come with a software bill of materials, 19# you should be able to construct one based on the above information, 20# your platform, and the way you use this Makefile. 21 22# To affect how this Makefile works, you can run a shell script like this: 23# 24# #!/bin/sh 25# make CFLAGS='-O2 -DHAVE_GETTEXT=0' "$@" 26# 27# This example script is appropriate for a GNU/Linux system 28# which needs more optimization than default, and which does not want 29# gettext's internationalization of diagnostics. 30# 31# Alternatively, you can simply edit this Makefile to tailor the following 32# macro definitions. 33 34############################################################################### 35# Start of macros that one plausibly might want to tailor. 36 37# Package name for the code distribution. 38PACKAGE= tzcode 39 40# Version number for the distribution, overridden in the 'tarballs' rule below. 41VERSION= unknown 42 43# Email address for bug reports. 44BUGEMAIL= tz@iana.org 45 46# DATAFORM selects the data format. 47# Available formats represent essentially the same data, albeit 48# possibly with minor discrepancies that users are not likely to notice. 49# To get new features and the best data right away, use: 50# DATAFORM= vanguard 51# To wait a while before using new features, to give downstream users 52# time to upgrade zic (the default), use: 53# DATAFORM= main 54# To wait even longer for new features, use: 55# DATAFORM= rearguard 56# Rearguard users might also want "ZFLAGS = -b fat"; see below. 57DATAFORM= main 58 59# Change the line below for your timezone (after finding the one you want in 60# one of the $(TDATA) source files, or adding it to a source file). 61# Alternatively, if you discover you've got the wrong timezone, you can just 62# 'zic -l -' to remove it, or 'zic -l rightzone' to change it. 63# Use the command 64# make zonenames 65# to get a list of the values you can use for LOCALTIME. 66 67LOCALTIME= Factory 68 69# The POSIXRULES macro controls interpretation of POSIX-like TZ 70# settings like TZ='EET-2EEST' that lack DST transition rules. 71# If POSIXRULES is '-', no template is installed; this is the default. 72# Any other value for POSIXRULES is obsolete and should not be relied on, as: 73# * It does not work correctly in popular implementations such as GNU/Linux. 74# * It does not work even in tzcode, except for historical timestamps 75# that precede the last explicit transition in the POSIXRULES file. 76# Hence it typically does not work for current and future timestamps. 77# If, despite the above, you want a template for handling these settings, 78# you can change the line below (after finding the timezone you want in the 79# one of the $(TDATA) source files, or adding it to a source file). 80# Alternatively, if you discover you've got the wrong timezone, you can just 81# 'zic -p -' to remove it, or 'zic -p rightzone' to change it. 82# Use the command 83# make zonenames 84# to get a list of the values you can use for POSIXRULES. 85 86POSIXRULES= - 87 88# Also see TZDEFRULESTRING below, which takes effect only 89# if POSIXRULES is '-' or if the template file cannot be accessed. 90 91 92# Installation locations. 93# 94# The defaults are suitable for Debian, except that if REDO is 95# posix_right or right_posix then files that Debian puts under 96# /usr/share/zoneinfo/posix and /usr/share/zoneinfo/right are instead 97# put under /usr/share/zoneinfo-posix and /usr/share/zoneinfo-leaps, 98# respectively. Problems with the Debian approach are discussed in 99# the commentary for the right_posix rule (below). 100 101# Destination directory, which can be used for staging. 102# 'make DESTDIR=/stage install' installs under /stage (e.g., to 103# /stage/etc/localtime instead of to /etc/localtime). Files under 104# /stage are not intended to work as-is, but can be copied by hand to 105# the root directory later. If DESTDIR is empty, 'make install' does 106# not stage, but installs directly into production locations. 107DESTDIR = 108 109# Everything is installed into subdirectories of TOPDIR, and used there. 110# TOPDIR should be empty (meaning the root directory), 111# or a directory name that does not end in "/". 112# TOPDIR should be empty or an absolute name unless you're just testing. 113TOPDIR = 114 115# The default local timezone is taken from the file TZDEFAULT. 116TZDEFAULT = $(TOPDIR)/etc/localtime 117 118# The subdirectory containing installed program and data files, and 119# likewise for installed files that can be shared among architectures. 120# These should be relative file names. 121USRDIR = usr 122USRSHAREDIR = $(USRDIR)/share 123 124# "Compiled" timezone information is placed in the "TZDIR" directory 125# (and subdirectories). 126# TZDIR_BASENAME should not contain "/" and should not be ".", ".." or empty. 127TZDIR_BASENAME= zoneinfo 128TZDIR = $(TOPDIR)/$(USRSHAREDIR)/$(TZDIR_BASENAME) 129 130# The "tzselect" and (if you do "make INSTALL") "date" commands go in: 131BINDIR = $(TOPDIR)/$(USRDIR)/bin 132 133# The "zdump" command goes in: 134ZDUMPDIR = $(BINDIR) 135 136# The "zic" command goes in: 137ZICDIR = $(TOPDIR)/$(USRDIR)/sbin 138 139# Manual pages go in subdirectories of. . . 140MANDIR = $(TOPDIR)/$(USRSHAREDIR)/man 141 142# Library functions are put in an archive in LIBDIR. 143LIBDIR = $(TOPDIR)/$(USRDIR)/lib 144 145 146# Types to try, as an alternative to time_t. 147TIME_T_ALTERNATIVES = $(TIME_T_ALTERNATIVES_HEAD) $(TIME_T_ALTERNATIVES_TAIL) 148TIME_T_ALTERNATIVES_HEAD = int_least64_t.ck 149TIME_T_ALTERNATIVES_TAIL = int_least32_t.ck uint_least32_t.ck \ 150 uint_least64_t.ck 151 152# What kind of TZif data files to generate. (TZif is the binary time 153# zone data format that zic generates; see Internet RFC 9636.) 154# If you want only POSIX time, with time values interpreted as 155# seconds since the epoch (not counting leap seconds), use 156# REDO= posix_only 157# below. If you want only "right" time, with values interpreted 158# as seconds since the epoch (counting leap seconds), use 159# REDO= right_only 160# below. If you want both sets of data available, with leap seconds not 161# counted normally, use 162# REDO= posix_right 163# below. If you want both sets of data available, with leap seconds counted 164# normally, use 165# REDO= right_posix 166# below. POSIX mandates that leap seconds not be counted; for compatibility 167# with it, use "posix_only" or "posix_right". Use POSIX time on systems with 168# leap smearing; this can work better than unsmeared "right" time with 169# applications that are not leap second aware, and is closer to unsmeared 170# "right" time than unsmeared POSIX time is (e.g., 0.5 vs 1.0 s max error). 171 172REDO= posix_right 173 174# Whether to put an "Expires" line in the leapseconds file. 175# Use EXPIRES_LINE=1 to put the line in, 0 to omit it. 176# The EXPIRES_LINE value matters only if REDO's value contains "right". 177# If you change EXPIRES_LINE, remove the leapseconds file before running "make". 178# zic's support for the Expires line was introduced in tzdb 2020a, 179# and was modified in tzdb 2021b to generate version 4 TZif files. 180# EXPIRES_LINE defaults to 0 for now so that the leapseconds file 181# can be given to pre-2020a zic implementations and so that TZif files 182# built by newer zic implementations can be read by pre-2021b libraries. 183EXPIRES_LINE= 0 184 185# To install data in text form that has all the information of the TZif data, 186# (optionally incorporating leap second information), use 187# TZDATA_TEXT= tzdata.zi leapseconds 188# To install text data without leap second information (e.g., because 189# REDO='posix_only'), use 190# TZDATA_TEXT= tzdata.zi 191# To avoid installing text data, use 192# TZDATA_TEXT= 193 194TZDATA_TEXT= leapseconds tzdata.zi 195 196# For backward-compatibility links for old zone names, use 197# BACKWARD= backward 198# To omit these links, use 199# BACKWARD= 200 201BACKWARD= backward 202 203# If you want out-of-scope and often-wrong data from the file 'backzone', 204# but only for entries listed in the backward-compatibility file zone.tab, use 205# PACKRATDATA= backzone 206# PACKRATLIST= zone.tab 207# If you want all the 'backzone' data, use 208# PACKRATDATA= backzone 209# PACKRATLIST= 210# To omit this data, use 211# PACKRATDATA= 212# PACKRATLIST= 213 214PACKRATDATA= 215PACKRATLIST= 216 217# The name of a locale using the UTF-8 encoding, used during self-tests. 218# The tests are skipped if the name does not appear to work on this system. 219 220UTF8_LOCALE= en_US.utf8 221 222# Non-default libraries needed to link. 223# On some hosts, this should have -lintl unless CFLAGS has -DHAVE_GETTEXT=0. 224LDLIBS= 225 226# Add the following to an uncommented "CFLAGS=" line as needed 227# to override defaults specified in the source code or by the system. 228# "-DFOO" is equivalent to "-DFOO=1". 229# -DDEPRECATE_TWO_DIGIT_YEARS for optional runtime warnings about strftime 230# formats that generate only the last two digits of year numbers 231# -DEPOCH_LOCAL if the 'time' function returns local time not UT 232# -DEPOCH_OFFSET=N if the 'time' function returns a value N greater 233# than what POSIX specifies, assuming local time is UT. 234# For example, N is 252460800 on AmigaOS. 235# -DHAVE_DECL_ASCTIME_R=0 if <time.h> does not declare asctime_r 236# on POSIX platforms predating POSIX.1-2024 237# -DHAVE_DECL_ENVIRON if <unistd.h> declares 'environ' 238# -DHAVE_DECL_TIMEGM=0 if <time.h> does not declare timegm 239# -DHAVE_DIRECT_H if mkdir needs <direct.h> (MS-Windows) 240# -DHAVE__GENERIC=0 if _Generic does not work* 241# -DHAVE_GETRANDOM if getrandom works (e.g., GNU/Linux), 242# -DHAVE_GETRANDOM=0 to avoid using getrandom 243# -DHAVE_GETTEXT if gettext works (e.g., GNU/Linux, FreeBSD, Solaris), 244# where LDLIBS also needs to contain -lintl on some hosts; 245# -DHAVE_GETTEXT=0 to avoid using gettext 246# -DHAVE_INCOMPATIBLE_CTIME_R if your system's time.h declares 247# ctime_r and asctime_r incompatibly with POSIX.1-2017 and earlier 248# (Solaris when _POSIX_PTHREAD_SEMANTICS is not defined). 249# -DHAVE_INTTYPES_H=0 if <inttypes.h> does not work*+ 250# -DHAVE_LINK=0 if your system lacks a link function 251# -DHAVE_LOCALTIME_R=0 if your system lacks a localtime_r function 252# -DHAVE_LOCALTIME_RZ=0 if you do not want zdump to use localtime_rz 253# localtime_rz can make zdump significantly faster, but is nonstandard. 254# -DHAVE_MALLOC_ERRNO=0 if malloc etc. do not set errno on failure. 255# -DHAVE_POSIX_DECLS=0 if your system's include files do not declare 256# functions like 'link' or variables like 'tzname' required by POSIX 257# -DHAVE_SETENV=0 if your system lacks the setenv function 258# -DHAVE_SNPRINTF=0 if your system lacks the snprintf function+ 259# -DHAVE_STDCKDINT_H=0 if neither <stdckdint.h> nor substitutes like 260# __builtin_add_overflow work* 261# -DHAVE_STDINT_H=0 if <stdint.h> does not work*+ 262# -DHAVE_STRFTIME_L if <time.h> declares locale_t and strftime_l 263# -DHAVE_STRDUP=0 if your system lacks the strdup function 264# -DHAVE_STRTOLL=0 if your system lacks the strtoll function+ 265# -DHAVE_SYMLINK=0 if your system lacks the symlink function 266# -DHAVE_SYS_STAT_H=0 if <sys/stat.h> does not work* 267# -DHAVE_TZSET=0 if your system lacks a tzset function 268# -DHAVE_UNISTD_H=0 if <unistd.h> does not work* 269# -DHAVE_UTMPX_H=0 if <utmpx.h> does not work* 270# -Dlocale_t=XXX if your system uses XXX instead of locale_t 271# -DMKTIME_MIGHT_OVERFLOW if mktime might fail due to time_t overflow 272# -DPORT_TO_C89 if tzcode should also run on mostly-C89 platforms+ 273# Typically it is better to use a later standard. For example, 274# with GCC 4.9.4 (2016), prefer '-std=gnu11' to '-DPORT_TO_C89'. 275# Even with -DPORT_TO_C89, the code needs at least one C99 276# feature (integers at least 64 bits wide) and maybe more. 277# -DRESERVE_STD_EXT_IDS if your platform reserves standard identifiers 278# with external linkage, e.g., applications cannot define 'localtime'. 279# -Dssize_t=int on hosts like MS-Windows that lack ssize_t 280# -DSUPPORT_C89=0 if the tzcode library should not support C89 callers 281# Although -DSUPPORT_C89=0 might work around latent bugs in callers, 282# it does not conform to POSIX. 283# -DSUPPORT_POSIX2008 if the library should support older POSIX callers+ 284# However, this might cause problems in POSIX.1-2024-or-later callers. 285# -DSUPPRESS_TZDIR to not prepend TZDIR to file names; this has 286# security implications and is not recommended for general use 287# -DTHREAD_SAFE to make localtime.c thread-safe, as POSIX requires; 288# not needed by the main-program tz code, which is single-threaded. 289# Append other compiler flags as needed, e.g., -pthread on GNU/Linux. 290# -Dtime_tz=\"T\" to use T as the time_t type, rather than the system time_t 291# This is intended for internal use only; it mangles external names. 292# -DTZ_DOMAIN=\"foo\" to use "foo" for gettext domain name; default is "tz" 293# -DTZ_DOMAINDIR=\"/path\" to use "/path" for gettext directory; 294# the default is system-supplied, typically "/usr/lib/locale" 295# -DTZDEFRULESTRING=\",date/time,date/time\" to default to the specified 296# DST transitions for proleptic format TZ strings lacking them, 297# in the usual case where POSIXRULES is '-'. If not specified, 298# TZDEFRULESTRING defaults to US rules for future DST transitions. 299# This mishandles some past timestamps, as US DST rules have changed. 300# It also mishandles settings like TZ='EET-2EEST' for eastern Europe, 301# as Europe and US DST rules differ. 302# -DTZNAME_MAXIMUM=N to limit time zone abbreviations to N bytes (default 254) 303# -DUNINIT_TRAP if reading uninitialized storage can cause problems 304# other than simply getting garbage data 305# -DUSE_LTZ=0 to build zdump with the system time zone library 306# Also set TZDOBJS=zdump.o and CHECK_TIME_T_ALTERNATIVES= below. 307# -DZIC_BLOAT_DEFAULT=\"fat\" to default zic's -b option to "fat", and 308# similarly for "slim". Fat TZif files work around incompatibilities 309# and bugs in some TZif readers, notably older ones that 310# ignore or otherwise mishandle 64-bit data in TZif files; 311# however, fat TZif files may trigger bugs in newer TZif readers. 312# Slim TZif files are more efficient, and are the default. 313# -DZIC_MAX_ABBR_LEN_WO_WARN=3 314# (or some other number) to set the maximum time zone abbreviation length 315# that zic will accept without a warning (the default is 6) 316# -g to generate symbolic debugging info 317# -Idir to include from directory 'dir' 318# -O0 to disable optimization; other -O options to enable more optimization 319# -Uname to remove any definition of the macro 'name' 320# $(GCC_DEBUG_FLAGS) if you are using recent GCC and want lots of checking 321# 322# * Options marked "*" can be omitted if your compiler is C23 compatible. 323# * Options marked "+" are obsolescent and are planned to be removed 324# once the code assumes C99 or later (say in the year 2029) 325# and POSIX.1-2024 or later (say in the year 2034). 326# 327# Select instrumentation via "make GCC_INSTRUMENT='whatever'". 328GCC_INSTRUMENT = \ 329 -fsanitize=undefined -fsanitize-address-use-after-scope \ 330 -fsanitize-undefined-trap-on-error -fstack-protector 331# Omit -fanalyzer from GCC_DEBUG_FLAGS, as it makes GCC too slow. 332GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 \ 333 $(GCC_INSTRUMENT) \ 334 -Wall -Wextra \ 335 -Walloc-size-larger-than=100000 -Warray-bounds=2 \ 336 -Wbad-function-cast -Wbidi-chars=any,ucn -Wcast-align=strict -Wcast-qual \ 337 -Wdate-time \ 338 -Wdeclaration-after-statement -Wdouble-promotion \ 339 -Wduplicated-branches -Wduplicated-cond -Wflex-array-member-not-at-end \ 340 -Wformat=2 -Wformat-overflow=2 -Wformat-signedness -Wformat-truncation \ 341 -Wimplicit-fallthrough=5 -Winit-self -Wlogical-op \ 342 -Wmissing-declarations -Wmissing-prototypes \ 343 -Wmissing-variable-declarations -Wnested-externs \ 344 -Wnull-dereference \ 345 -Wold-style-definition -Woverlength-strings -Wpointer-arith \ 346 -Wshadow -Wshift-overflow=2 -Wstrict-overflow \ 347 -Wstrict-prototypes -Wstringop-overflow=4 \ 348 -Wstringop-truncation -Wsuggest-attribute=cold \ 349 -Wsuggest-attribute=const -Wsuggest-attribute=format \ 350 -Wsuggest-attribute=malloc \ 351 -Wsuggest-attribute=noreturn -Wsuggest-attribute=pure \ 352 -Wtrampolines -Wundef -Wunused-macros -Wuse-after-free=3 \ 353 -Wvariadic-macros -Wvla -Wwrite-strings \ 354 -Wno-format-nonliteral -Wno-sign-compare -Wno-type-limits 355# 356# If your system has a "GMT offset" field in its "struct tm"s 357# (or if you decide to add such a field in your system's "time.h" file), 358# add the name to a define such as 359# -DTM_GMTOFF=tm_gmtoff 360# to the end of the "CFLAGS=" line. If not defined, the code attempts to 361# guess TM_GMTOFF from other macros; define NO_TM_GMTOFF to suppress this. 362# Similarly, if your system has a "zone abbreviation" field, define 363# -DTM_ZONE=tm_zone 364# and define NO_TM_ZONE to suppress any guessing. 365# Although POSIX.1-2024 requires these fields and they are widely available 366# on GNU/Linux and BSD systems, some older systems lack them. 367# 368# The next batch of options control support for external variables 369# exported by tzcode. In practice these variables are less useful 370# than TM_GMTOFF and TM_ZONE. However, most of them are standardized. 371# # 372# # To omit or support the external variable "tzname", add one of: 373# # -DHAVE_TZNAME=0 # do not support "tzname" 374# # -DHAVE_TZNAME=1 # support "tzname", which is defined by system library 375# # -DHAVE_TZNAME=2 # support and define "tzname" 376# # to the "CFLAGS=" line. Although "tzname" is required by POSIX.1-1988 377# # and later, its contents are unspecified if you use a geographical TZ 378# # and the variable is planned to be removed in a future POSIX edition. 379# # If not defined, the code attempts to guess HAVE_TZNAME from other macros. 380# # Warning: unless time_tz is also defined, HAVE_TZNAME=1 can cause 381# # crashes when combined with some platforms' standard libraries, 382# # presumably due to memory allocation issues. 383# # 384# # To omit or support the external variables "timezone" and "daylight", add 385# # -DUSG_COMPAT=0 # do not support 386# # -DUSG_COMPAT=1 # support, and variables are defined by system library 387# # -DUSG_COMPAT=2 # support and define variables 388# # to the "CFLAGS=" line; "timezone" and "daylight" are inspired by Unix 389# # Systems Group code and are required by POSIX.1-2008 and later (with XSI), 390# # although their contents are unspecified if you use a geographical TZ 391# # and the variables are planned to be removed in a future edition of POSIX. 392# # If not defined, the code attempts to guess USG_COMPAT from other macros. 393# # 394# # To support the external variable "altzone", add 395# # -DALTZONE=0 # do not support 396# # -DALTZONE=1 # support "altzone", which is defined by system library 397# # -DALTZONE=2 # support and define "altzone" 398# # to the end of the "CFLAGS=" line; although "altzone" appeared in 399# # System V Release 3.1 it has not been standardized. 400# # If not defined, the code attempts to guess ALTZONE from other macros. 401# 402# If you want functions that were inspired by early versions of X3J11's work, 403# add 404# -DSTD_INSPIRED 405# to the end of the "CFLAGS=" line. This arranges for the following 406# functions to be added to the time conversion library. 407# "offtime" is like "gmtime" except that it accepts a second (long) argument 408# that gives an offset to add to the time_t when converting it. 409# I.e., "offtime" is like calling "localtime_rz" with a fixed-offset zone. 410# "timelocal" is nearly equivalent to "mktime". 411# "timeoff" is like "timegm" except that it accepts a second (long) argument 412# that gives an offset to use when converting to a time_t. 413# I.e., "timeoff" is like calling "mktime_z" with a fixed-offset zone. 414# "posix2time" and "time2posix" are described in an included manual page. 415# X3J11's work does not describe any of these functions. 416# These functions may well disappear in future releases of the time 417# conversion package. 418# 419# If you don't want functions that were inspired by NetBSD, add 420# -DNETBSD_INSPIRED=0 421# to the end of the "CFLAGS=" line. Otherwise, the functions 422# "localtime_rz", "mktime_z", "tzalloc", and "tzfree" are added to the 423# time library, and if STD_INSPIRED is also defined to nonzero the functions 424# "posix2time_z" and "time2posix_z" are added as well. 425# The functions ending in "_z" (or "_rz") are like their unsuffixed 426# (or suffixed-by-"_r") counterparts, except with an extra first 427# argument of opaque type timezone_t that specifies the timezone. 428# "tzalloc" allocates a timezone_t value, and "tzfree" frees it. 429# 430# If you want to allocate state structures in localtime, add 431# -DALL_STATE 432# to the end of the "CFLAGS=" line. Storage is obtained by calling malloc. 433# 434# NIST-PCTS:151-2, Version 1.4, (1993-12-03) is a test suite put 435# out by the National Institute of Standards and Technology 436# which claims to test C and POSIX conformance. If you want to pass PCTS, add 437# -DPCTS 438# to the end of the "CFLAGS=" line. 439# 440# If you want strict compliance with XPG4 as of 1994-04-09, add 441# -DXPG4_1994_04_09 442# to the end of the "CFLAGS=" line. This causes "strftime" to always return 443# 53 as a week number (rather than 52 or 53) for January days before 444# January's first Monday when a "%V" format is used and January 1 445# falls on a Friday, Saturday, or Sunday. 446# 447# POSIX says CFLAGS defaults to "-O 1". 448# Uncomment the following line and edit its contents as needed. 449 450#CFLAGS= -O 1 451 452 453# The name of a POSIX-like library archiver, its flags, C compiler, 454# linker flags, and 'make' utility. Ordinarily the defaults suffice. 455# The commented-out values are the defaults specified by POSIX.1-2024. 456#AR = ar 457#ARFLAGS = -rv 458#CC = c17 459#LDFLAGS = 460#MAKE = make 461 462# Where to fetch leap-seconds.list from. 463leaplist_URI = \ 464 https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list 465# The file is generated by the IERS Earth Orientation Centre, in Paris. 466leaplist_TZ = Europe/Paris 467# 468# To fetch leap-seconds.list from NIST via a less-secure protocol 469# and with less-volatile metadata, use these settings: 470#leaplist_URI = ftp://ftp.boulder.nist.gov/pub/time/leap-seconds.list 471#leaplist_TZ = America/Denver 472 473# The zic command and its arguments. 474 475zic= ./zic 476ZIC= $(zic) $(ZFLAGS) 477 478# To shrink the size of installed TZif files, 479# append "-r @N" to omit data before N-seconds-after-the-Epoch. 480# To grow the files and work around bugs in older applications, 481# possibly at the expense of introducing bugs in newer ones, 482# append "-b fat"; see ZIC_BLOAT_DEFAULT above. 483# See the zic man page for more about -b and -r. 484ZFLAGS= 485 486# How to use zic to install TZif files. 487 488ZIC_INSTALL= $(ZIC) -d '$(DESTDIR)$(TZDIR)' 489 490# The name of a POSIX-compliant 'awk' on your system. 491# mawk 1.3.3 and Solaris 10 /usr/bin/awk do not work. 492# Also, it is better (though not essential) if 'awk' supports UTF-8, 493# and unfortunately mawk and busybox awk do not support UTF-8. 494# Try AWK=gawk or AWK=nawk if your awk has the abovementioned problems. 495AWK= awk 496 497# The full path name of a POSIX-compliant shell, preferably one that supports 498# the Korn shell's 'select' statement as an extension. 499# These days, Bash is the most popular. 500# It should be OK to set this to /bin/sh, on platforms where /bin/sh 501# lacks 'select' or doesn't completely conform to POSIX, but /bin/bash 502# is typically nicer if it works. 503KSHELL= /bin/bash 504 505# Name of curl <https://curl.haxx.se/>, used for HTML validation 506# and to fetch leap-seconds.list from upstream. 507# Set CURL=: to disable use of the Internet. 508CURL= curl 509 510# Name of GNU Privacy Guard <https://gnupg.org/>, used to sign distributions. 511GPG= gpg 512 513# This expensive test requires USE_LTZ. 514# To suppress it, define this macro to be empty. 515CHECK_TIME_T_ALTERNATIVES = check_time_t_alternatives 516 517# SAFE_CHAR is a regular expression that matches a safe character. 518# Some parts of this distribution are limited to safe characters; 519# others can use any UTF-8 character. 520# For now, the safe characters are a safe subset of ASCII. 521# The caller must set the shell variable 'sharp' to the character '#', 522# since Makefile macros cannot contain '#'. 523# TAB_CHAR is a single tab character, in single quotes. 524TAB_CHAR= ' ' 525SAFE_CHARSET1= $(TAB_CHAR)' !\"'$$sharp'$$%&'\''()*+,./0123456789:;<=>?@' 526SAFE_CHARSET2= 'ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\^_`' 527SAFE_CHARSET3= 'abcdefghijklmnopqrstuvwxyz{|}~' 528SAFE_CHARSET= $(SAFE_CHARSET1)$(SAFE_CHARSET2)$(SAFE_CHARSET3) 529SAFE_CHAR= '[]'$(SAFE_CHARSET)'-]' 530 531# These non-alphabetic, non-ASCII printable characters are Latin-1, 532# and so are likely displayable even in editors like XEmacs 21 533# that have limited display capabilities. 534UNUSUAL_OK_LATIN_1 = ¡¢£¤¥¦§¨©«¬®¯°±²³´¶·¸¹»¼½¾¿×÷ 535# Non-ASCII non-letters that OK_CHAR allows, as these characters are 536# useful in commentary. 537UNUSUAL_OK_CHARSET= $(UNUSUAL_OK_LATIN_1) 538 539# Put this in a bracket expression to match spaces. 540s = [:space:] 541 542# OK_CHAR matches any character allowed in the distributed files. 543# This is the same as SAFE_CHAR, except that UNUSUAL_OK_CHARSET and 544# multibyte letters are also allowed so that commentary can contain a 545# few safe symbols and people's names and can quote non-English sources. 546# Other non-letters are limited to ASCII renderings for the 547# convenience of maintainers using XEmacs 21.5.34, which by default 548# mishandles Unicode characters U+0100 and greater. 549OK_CHAR= '[][:alpha:]$(UNUSUAL_OK_CHARSET)'$(SAFE_CHARSET)'-]' 550 551# SAFE_LINE matches a line of safe characters. 552# SAFE_SHARP_LINE is similar, except any OK character can follow '#'; 553# this is so that comments can contain non-ASCII characters. 554# OK_LINE matches a line of OK characters. 555SAFE_LINE= '^'$(SAFE_CHAR)'*$$' 556SAFE_SHARP_LINE='^'$(SAFE_CHAR)'*('$$sharp$(OK_CHAR)'*)?$$' 557OK_LINE= '^'$(OK_CHAR)'*$$' 558 559# Flags to give 'tar' when making a distribution. 560# Try to use flags appropriate for GNU tar. 561GNUTARFLAGS= --format=pax --pax-option=delete=atime,delete=ctime \ 562 --numeric-owner --owner=0 --group=0 \ 563 --mode=go+u,go-w --sort=name 564SETUP_TAR= \ 565 export LC_ALL=C && \ 566 if tar $(GNUTARFLAGS) --version >/dev/null 2>&1; then \ 567 TAR='tar $(GNUTARFLAGS)'; \ 568 else \ 569 TAR=tar; \ 570 fi 571 572# Flags to give 'gzip' when making a distribution. 573GZIPFLAGS= -9n 574 575# When comparing .tzs files, use GNU diff's -F'^TZ=' option if supported. 576# This makes it easier to see which Zone has been affected. 577SETUP_DIFF_TZS = \ 578 if diff -u -F'^TZ=' - - <>/dev/null >&0 2>&1; then \ 579 DIFF_TZS='diff -u -F^TZ='; \ 580 else \ 581 DIFF_TZS='diff -u'; \ 582 fi 583 584# ':' on typical hosts; 'ranlib' on the ancient hosts that still need ranlib. 585RANLIB= : 586 587# POSIX prohibits defining or using SHELL. However, csh users on systems 588# that use the user shell for Makefile commands may need to define SHELL. 589#SHELL= /bin/sh 590 591# End of macros that one plausibly might want to tailor. 592############################################################################### 593 594 595TZCOBJS= zic.o 596TZDOBJS= zdump.o localtime.o strftime.o 597DATEOBJS= date.o localtime.o strftime.o 598LIBSRCS= localtime.c asctime.c difftime.c strftime.c 599LIBOBJS= localtime.o asctime.o difftime.o strftime.o 600HEADERS= tzfile.h private.h 601NONLIBSRCS= zic.c zdump.c 602NEWUCBSRCS= date.c 603SOURCES= $(HEADERS) $(LIBSRCS) $(NONLIBSRCS) $(NEWUCBSRCS) \ 604 tzselect.ksh workman.sh 605MANS= newctime.3 newstrftime.3 newtzset.3 time2posix.3 \ 606 tzfile.5 tzselect.8 zic.8 zdump.8 607MANTXTS= newctime.3.txt newstrftime.3.txt newtzset.3.txt \ 608 time2posix.3.txt \ 609 tzfile.5.txt tzselect.8.txt zic.8.txt zdump.8.txt \ 610 date.1.txt 611COMMON= calendars CONTRIBUTING LICENSE Makefile \ 612 NEWS README SECURITY theory.html version 613WEB_PAGES= tz-art.html tz-how-to.html tz-link.html 614CHECK_WEB_PAGES=theory.ck tz-art.ck tz-how-to.ck tz-link.ck 615DOCS= $(MANS) date.1 $(MANTXTS) $(WEB_PAGES) 616PRIMARY_YDATA= africa antarctica asia australasia \ 617 europe northamerica southamerica 618YDATA= $(PRIMARY_YDATA) etcetera 619NDATA= factory 620TDATA_TO_CHECK= $(YDATA) $(NDATA) backward 621TDATA= $(YDATA) $(NDATA) $(BACKWARD) 622ZONETABLES= zone.tab zone1970.tab zonenow.tab 623TABDATA= iso3166.tab $(TZDATA_TEXT) $(ZONETABLES) 624LEAP_DEPS= leapseconds.awk leap-seconds.list 625TZDATA_ZI_DEPS= ziguard.awk zishrink.awk version $(TDATA) \ 626 $(PACKRATDATA) $(PACKRATLIST) 627DSTDATA_ZI_DEPS= ziguard.awk $(TDATA) $(PACKRATDATA) $(PACKRATLIST) 628DATA= $(TDATA_TO_CHECK) backzone iso3166.tab leap-seconds.list \ 629 leapseconds $(ZONETABLES) 630AWK_SCRIPTS= checklinks.awk checknow.awk checktab.awk leapseconds.awk \ 631 ziguard.awk zishrink.awk 632MISC= $(AWK_SCRIPTS) 633TZS_YEAR= 2050 634TZS_CUTOFF_FLAG= -c $(TZS_YEAR) 635TZS= to$(TZS_YEAR).tzs 636TZS_NEW= to$(TZS_YEAR)new.tzs 637TZS_DEPS= $(YDATA) localtime.c private.h \ 638 strftime.c tzfile.h zdump.c zic.c 639TZDATA_DIST = $(COMMON) $(DATA) $(MISC) 640# EIGHT_YARDS is just a yard short of the whole ENCHILADA. 641EIGHT_YARDS = $(TZDATA_DIST) $(DOCS) $(SOURCES) tzdata.zi 642ENCHILADA = $(EIGHT_YARDS) $(TZS) 643 644# Consult these files when deciding whether to rebuild the 'version' file. 645# This list is not the same as the output of 'git ls-files', since 646# .gitignore is not distributed. 647VERSION_DEPS= \ 648 calendars CONTRIBUTING LICENSE Makefile NEWS README SECURITY \ 649 africa antarctica asctime.c asia australasia \ 650 backward backzone \ 651 checklinks.awk checknow.awk checktab.awk \ 652 date.1 date.c difftime.c \ 653 etcetera europe factory iso3166.tab \ 654 leap-seconds.list leapseconds.awk localtime.c \ 655 newctime.3 newstrftime.3 newtzset.3 northamerica \ 656 private.h southamerica strftime.c theory.html \ 657 time2posix.3 tz-art.html tz-how-to.html tz-link.html \ 658 tzfile.5 tzfile.h tzselect.8 tzselect.ksh \ 659 workman.sh zdump.8 zdump.c zic.8 zic.c \ 660 ziguard.awk zishrink.awk \ 661 zone.tab zone1970.tab zonenow.tab 662 663all: tzselect zic zdump libtz.a $(TABDATA) \ 664 vanguard.zi main.zi rearguard.zi 665 666ALL: all date $(ENCHILADA) 667 668install: all $(DATA) $(REDO) $(MANS) 669 mkdir -p '$(DESTDIR)$(BINDIR)' \ 670 '$(DESTDIR)$(ZDUMPDIR)' '$(DESTDIR)$(ZICDIR)' \ 671 '$(DESTDIR)$(LIBDIR)' \ 672 '$(DESTDIR)$(MANDIR)/man3' '$(DESTDIR)$(MANDIR)/man5' \ 673 '$(DESTDIR)$(MANDIR)/man8' 674 $(ZIC_INSTALL) -l $(LOCALTIME) \ 675 -p $(POSIXRULES) \ 676 -t '$(DESTDIR)$(TZDEFAULT)' 677 cp -f $(TABDATA) '$(DESTDIR)$(TZDIR)/.' 678 cp tzselect '$(DESTDIR)$(BINDIR)/.' 679 cp zdump '$(DESTDIR)$(ZDUMPDIR)/.' 680 cp zic '$(DESTDIR)$(ZICDIR)/.' 681 cp libtz.a '$(DESTDIR)$(LIBDIR)/.' 682 $(RANLIB) '$(DESTDIR)$(LIBDIR)/libtz.a' 683 cp -f newctime.3 newtzset.3 '$(DESTDIR)$(MANDIR)/man3/.' 684 cp -f tzfile.5 '$(DESTDIR)$(MANDIR)/man5/.' 685 cp -f tzselect.8 zdump.8 zic.8 '$(DESTDIR)$(MANDIR)/man8/.' 686 687INSTALL: ALL install date.1 688 mkdir -p '$(DESTDIR)$(BINDIR)' '$(DESTDIR)$(MANDIR)/man1' 689 cp date '$(DESTDIR)$(BINDIR)/.' 690 cp -f date.1 '$(DESTDIR)$(MANDIR)/man1/.' 691 692# Calculate version number from git, if available. 693# Otherwise, use $(VERSION) unless it is "unknown" and there is already 694# a 'version' file, in which case reuse the existing 'version' contents 695# and append "-dirty" if the contents do not already end in "-dirty". 696version: $(VERSION_DEPS) 697 { (type git) >/dev/null 2>&1 && \ 698 V=$$(git describe --match '[0-9][0-9][0-9][0-9][a-z]*' \ 699 --abbrev=7 --dirty) || \ 700 if test '$(VERSION)' = unknown && read -r V <$@; then \ 701 V=$${V%-dirty}-dirty; \ 702 else \ 703 V='$(VERSION)'; \ 704 fi; } && \ 705 printf '%s\n' "$$V" >$@.out 706 mv $@.out $@ 707 708# These files can be tailored by setting BACKWARD, PACKRATDATA, PACKRATLIST. 709vanguard.zi main.zi rearguard.zi: $(DSTDATA_ZI_DEPS) 710 $(AWK) \ 711 -v DATAFORM=$(@:.zi=) \ 712 -v PACKRATDATA='$(PACKRATDATA)' \ 713 -v PACKRATLIST='$(PACKRATLIST)' \ 714 -f ziguard.awk \ 715 $(TDATA) $(PACKRATDATA) >$@.out 716 mv $@.out $@ 717# This file has a version comment that attempts to capture any tailoring 718# via BACKWARD, DATAFORM, PACKRATDATA, PACKRATLIST, and REDO. 719tzdata.zi: $(DATAFORM).zi version zishrink.awk 720 read -r version <version && \ 721 LC_ALL=C $(AWK) \ 722 -v dataform='$(DATAFORM)' \ 723 -v deps='$(DSTDATA_ZI_DEPS) zishrink.awk' \ 724 -v redo='$(REDO)' \ 725 -v version="$$version" \ 726 -f zishrink.awk \ 727 $(DATAFORM).zi >$@.out 728 mv $@.out $@ 729 730tzdir.h: 731 printf '%s\n' >$@.out \ 732 '#ifndef TZDEFAULT' \ 733 '# define TZDEFAULT "$(TZDEFAULT)" /* default zone */' \ 734 '#endif' \ 735 '#ifndef TZDIR' \ 736 '# define TZDIR "$(TZDIR)" /* TZif directory */' \ 737 '#endif' 738 mv $@.out $@ 739 740version.h: version 741 read -r VERSION <version && printf '%s\n' \ 742 'static char const PKGVERSION[]="($(PACKAGE)) ";' \ 743 "static char const TZVERSION[]=\"$$VERSION\";" \ 744 'static char const REPORT_BUGS_TO[]="$(BUGEMAIL)";' \ 745 >$@.out 746 mv $@.out $@ 747 748zdump: $(TZDOBJS) 749 $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZDOBJS) $(LDLIBS) 750 751zic: $(TZCOBJS) 752 $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZCOBJS) $(LDLIBS) 753 754leapseconds: $(LEAP_DEPS) 755 $(AWK) -v EXPIRES_LINE=$(EXPIRES_LINE) \ 756 -f leapseconds.awk leap-seconds.list >$@.out 757 mv $@.out $@ 758 759# Awk script to extract a Git-style author from leap-seconds.list comments. 760EXTRACT_AUTHOR = \ 761 author_line { sub(/^.[[:space:]]*/, ""); \ 762 sub(/:[[:space:]]*/, " <"); \ 763 printf "%s>\n", $$0; \ 764 success = 1; \ 765 exit \ 766 } \ 767 /Questions or comments to:/ { author_line = 1 } \ 768 END { exit !success } 769 770# Fetch leap-seconds.list from upstream. 771fetch-leap-seconds.list: 772 $(CURL) -OR $(leaplist_URI) 773 774# Fetch leap-seconds.list from upstream and commit it to the local repository. 775commit-leap-seconds.list: fetch-leap-seconds.list 776 author=$$($(AWK) '$(EXTRACT_AUTHOR)' leap-seconds.list) && \ 777 date=$$(TZ=$(leaplist_TZ) stat -c%y leap-seconds.list) && \ 778 git commit --author="$$author" --date="$$date" -m'make $@' \ 779 leap-seconds.list 780 781# Arguments to pass to submakes. 782# They can be overridden by later submake arguments. 783INSTALLARGS = \ 784 BACKWARD='$(BACKWARD)' \ 785 DESTDIR='$(DESTDIR)' \ 786 PACKRATDATA='$(PACKRATDATA)' \ 787 PACKRATLIST='$(PACKRATLIST)' \ 788 TZDEFAULT='$(TZDEFAULT)' \ 789 TZDIR='$(TZDIR)' \ 790 ZIC='$(ZIC)' 791 792INSTALL_DATA_DEPS = zic leapseconds tzdata.zi 793 794posix_only: $(INSTALL_DATA_DEPS) 795 $(ZIC_INSTALL) tzdata.zi 796 797right_only: $(INSTALL_DATA_DEPS) 798 $(ZIC_INSTALL) -L leapseconds tzdata.zi 799 800# In earlier versions of this makefile, the other two directories were 801# subdirectories of $(TZDIR). However, this led to configuration errors. 802# For example, with posix_right under the earlier scheme, 803# TZ='right/Australia/Adelaide' got you localtime with leap seconds, 804# but gmtime without leap seconds, which led to problems with applications 805# like sendmail that subtract gmtime from localtime. 806# Therefore, the other two directories are now siblings of $(TZDIR). 807# You must replace all of $(TZDIR) to switch from not using leap seconds 808# to using them, or vice versa. 809right_posix: right_only 810 rm -fr '$(DESTDIR)$(TZDIR)-leaps' 811 ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-leaps' || \ 812 $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only 813 $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only 814 815posix_right: posix_only 816 rm -fr '$(DESTDIR)$(TZDIR)-posix' 817 ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-posix' || \ 818 $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only 819 $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only 820 821zones: $(REDO) 822 823# dummy.zd is not a real file; it is mentioned here only so that the 824# top-level 'make' does not have a syntax error. 825ZDS = dummy.zd 826# Rule used only by submakes invoked by the $(TZS_NEW) rule. 827# It is separate so that GNU 'make -j' can run instances in parallel. 828$(ZDS): zdump 829 ./zdump -i $(TZS_CUTOFF_FLAG) "$$PWD/$(@:.zd=)" >$@ 830 831TZS_NEW_DEPS = tzdata.zi zdump zic 832$(TZS_NEW): $(TZS_NEW_DEPS) 833 rm -fr tzs$(TZS_YEAR).dir 834 mkdir tzs$(TZS_YEAR).dir 835 $(zic) -d tzs$(TZS_YEAR).dir tzdata.zi 836 $(AWK) '/^L/{print "Link\t" $$2 "\t" $$3}' \ 837 tzdata.zi | LC_ALL=C sort >$@.out 838 x=$$($(AWK) '/^Z/{print "tzs$(TZS_YEAR).dir/" $$2 ".zd"}' \ 839 tzdata.zi \ 840 | LC_ALL=C sort -t . -k 2,2) && \ 841 set x $$x && \ 842 shift && \ 843 ZDS=$$* && \ 844 $(MAKE) TZS_CUTOFF_FLAG="$(TZS_CUTOFF_FLAG)" \ 845 ZDS="$$ZDS" $$ZDS && \ 846 sed 's,^TZ=".*\.dir/,TZ=",' $$ZDS >>$@.out 847 rm -fr tzs$(TZS_YEAR).dir 848 mv $@.out $@ 849 850# If $(TZS) exists but 'make tzs.ck' fails, a maintainer should inspect the 851# failed output and fix the inconsistency, perhaps by running 'make force_tzs'. 852$(TZS): 853 touch $@ 854 855force_tzs: $(TZS_NEW) 856 cp $(TZS_NEW) $(TZS) 857 858libtz.a: $(LIBOBJS) 859 rm -f $@ 860 $(AR) $(ARFLAGS) $@ $(LIBOBJS) 861 $(RANLIB) $@ 862 863date: $(DATEOBJS) 864 $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(DATEOBJS) $(LDLIBS) 865 866tzselect: tzselect.ksh version 867 read -r VERSION <version && sed \ 868 -e "s'#!/bin/bash'#!"'$(KSHELL)'\' \ 869 -e s\''\(AWK\)=[^}]*'\''\1=\'\''$(AWK)\'\'\' \ 870 -e s\''\(PKGVERSION\)=.*'\''\1=\'\''($(PACKAGE)) \'\'\' \ 871 -e s\''\(REPORT_BUGS_TO\)=.*'\''\1=\'\''$(BUGEMAIL)\'\'\' \ 872 -e s\''\(TZDIR\)=[^}]*'\''\1=\'\''$(TZDIR)\'\'\' \ 873 -e s\''\(TZVERSION\)=.*'\''\1=\'"'$$VERSION\\''" \ 874 <$@.ksh >$@.out 875 chmod +x $@.out 876 mv $@.out $@ 877 878check: check_mild back.ck now.ck 879check_mild: check_web check_zishrink \ 880 character-set.ck white-space.ck links.ck mainguard.ck \ 881 name-lengths.ck slashed-abbrs.ck sorted.ck \ 882 tables.ck ziguard.ck tzs.ck 883 884# True if UTF8_LOCALE does not work; 885# otherwise, false but with LC_ALL set to $(UTF8_LOCALE). 886UTF8_LOCALE_MISSING = \ 887 { test ! '$(UTF8_LOCALE)' \ 888 || ! printf 'A\304\200B\n' \ 889 | LC_ALL='$(UTF8_LOCALE)' grep -q '^A.B$$' >/dev/null 2>&1 \ 890 || { export LC_ALL='$(UTF8_LOCALE)'; false; }; } 891 892character-set.ck: $(ENCHILADA) 893 $(UTF8_LOCALE_MISSING) || { \ 894 sharp='#' && \ 895 ! grep -Env $(SAFE_LINE) $(MANS) date.1 $(MANTXTS) \ 896 $(MISC) $(SOURCES) $(WEB_PAGES) \ 897 CONTRIBUTING LICENSE README SECURITY \ 898 version tzdata.zi && \ 899 ! grep -Env $(SAFE_LINE)'|^UNUSUAL_OK_'$(OK_CHAR)'*$$' \ 900 Makefile && \ 901 ! grep -Env $(SAFE_SHARP_LINE) $(TDATA_TO_CHECK) backzone \ 902 leapseconds zone.tab && \ 903 ! grep -Env $(OK_LINE) $(ENCHILADA); \ 904 } 905 touch $@ 906 907white-space.ck: $(ENCHILADA) 908 $(UTF8_LOCALE_MISSING) || { \ 909 patfmt=' \t|[\f\r\v]' && pat=$$(printf "$$patfmt\\n") && \ 910 ! grep -En "$$pat|[$s]\$$" \ 911 $(ENCHILADA:leap-seconds.list=); \ 912 } 913 touch $@ 914 915PRECEDES_FILE_NAME = ^(Zone|Link[$s]+[^$s]+)[$s]+ 916FILE_NAME_COMPONENT_TOO_LONG = $(PRECEDES_FILE_NAME)[^$s]*[^/$s]{15} 917 918name-lengths.ck: $(TDATA_TO_CHECK) backzone 919 :;! grep -En '$(FILE_NAME_COMPONENT_TOO_LONG)' \ 920 $(TDATA_TO_CHECK) backzone 921 touch $@ 922 923mainguard.ck: main.zi 924 test '$(PACKRATLIST)' || \ 925 cat $(TDATA) $(PACKRATDATA) | diff -u - main.zi 926 touch $@ 927 928PRECEDES_STDOFF = ^(Zone[$s]+[^$s]+)?[$s]+ 929STDOFF = [-+]?[0-9:.]+ 930RULELESS_SAVE = (-|$(STDOFF)[sd]?) 931RULELESS_SLASHED_ABBRS = \ 932 $(PRECEDES_STDOFF)$(STDOFF)[$s]+$(RULELESS_SAVE)[$s]+[^$s]*/ 933 934slashed-abbrs.ck: $(TDATA_TO_CHECK) 935 :;! grep -En '$(RULELESS_SLASHED_ABBRS)' $(TDATA_TO_CHECK) 936 touch $@ 937 938CHECK_CC_LIST = { n = split($$1,a,/,/); for (i=2; i<=n; i++) print a[1], a[i]; } 939 940sorted.ck: backward backzone 941 $(AWK) '/^Link/ {printf "%.5d %s\n", g, $$3} !/./ {g++}' \ 942 backward | LC_ALL=C sort -cu 943 $(AWK) '/^Zone.*\// {print $$2}' backzone | LC_ALL=C sort -cu 944 touch $@ 945 946back.ck: checklinks.awk $(TDATA_TO_CHECK) 947 $(AWK) \ 948 -v DATAFORM=$(DATAFORM) \ 949 -v backcheck=backward \ 950 -f checklinks.awk $(TDATA_TO_CHECK) 951 touch $@ 952 953links.ck: checklinks.awk tzdata.zi 954 $(AWK) \ 955 -v DATAFORM=$(DATAFORM) \ 956 -f checklinks.awk tzdata.zi 957 touch $@ 958 959# Check timestamps from now through 28 years from now, to make sure 960# that zonenow.tab contains all sequences of planned timestamps, 961# without any duplicate sequences. In theory this might require 962# 2800+ years but that would take a long time to check. 963CHECK_NOW_TIMESTAMP = $$(./date +%s) 964CHECK_NOW_FUTURE_YEARS = 28 965CHECK_NOW_FUTURE_SECS = $(CHECK_NOW_FUTURE_YEARS) * 366 * 24 * 60 * 60 966now.ck: checknow.awk date tzdata.zi zdump zic zone1970.tab zonenow.tab 967 rm -fr $@d 968 mkdir $@d 969 ./zic -d $@d tzdata.zi 970 now=$(CHECK_NOW_TIMESTAMP) && \ 971 future=$$(($(CHECK_NOW_FUTURE_SECS) + $$now)) && \ 972 ./zdump -i -t $$now,$$future \ 973 $$(find "$$PWD/$@d"/????*/ -type f) \ 974 >$@d/zdump-now.tab && \ 975 ./zdump -i -t 0,$$future \ 976 $$(find "$$PWD/$@d" -name Etc -prune \ 977 -o -type f ! -name '*.tab' -print) \ 978 >$@d/zdump-1970.tab 979 $(AWK) \ 980 -v zdump_table=$@d/zdump-now.tab \ 981 -f checknow.awk zonenow.tab 982 $(AWK) \ 983 'BEGIN {print "-\t-\tUTC"} /^Zone/ {print "-\t-\t" $$2}' \ 984 $(PRIMARY_YDATA) backward factory | \ 985 $(AWK) \ 986 -v zdump_table=$@d/zdump-1970.tab \ 987 -f checknow.awk 988 rm -fr $@d 989 touch $@ 990 991tables.ck: checktab.awk $(YDATA) backward zone.tab zone1970.tab 992 for tab in $(ZONETABLES); do \ 993 test "$$tab" = zone.tab && links='$(BACKWARD)' || links=''; \ 994 $(AWK) -f checktab.awk -v zone_table=$$tab $(YDATA) $$links \ 995 || exit; \ 996 done 997 touch $@ 998 999tzs.ck: $(TZS) $(TZS_NEW) 1000 if test -s $(TZS); then \ 1001 $(SETUP_DIFF_TZS) && $$DIFF_TZS $(TZS) $(TZS_NEW); \ 1002 else \ 1003 cp $(TZS_NEW) $(TZS); \ 1004 fi 1005 touch $@ 1006 1007check_web: $(CHECK_WEB_PAGES) 1008.SUFFIXES: .ck .html 1009.html.ck: 1010 { ! ($(CURL) --version) >/dev/null 2>&1 || \ 1011 $(CURL) -sS --url https://validator.w3.org/nu/ -F out=gnu \ 1012 -F file=@$<; } >$@.out && \ 1013 test ! -s $@.out || { cat $@.out; exit 1; } 1014 mv $@.out $@ 1015 1016ziguard.ck: rearguard.zi vanguard.zi ziguard.awk 1017 $(AWK) -v DATAFORM=rearguard -f ziguard.awk vanguard.zi | \ 1018 diff -u rearguard.zi - 1019 $(AWK) -v DATAFORM=vanguard -f ziguard.awk rearguard.zi | \ 1020 diff -u vanguard.zi - 1021 touch $@ 1022 1023# Check that zishrink.awk does not alter the data, and that ziguard.awk 1024# preserves main-format data. 1025check_zishrink: zishrink-posix.ck zishrink-right.ck 1026zishrink-posix.ck zishrink-right.ck: \ 1027 zic leapseconds $(PACKRATDATA) $(PACKRATLIST) \ 1028 $(TDATA) $(DATAFORM).zi tzdata.zi 1029 rm -fr $@d t-$@d shrunk-$@d 1030 mkdir $@d t-$@d shrunk-$@d 1031 case $@ in \ 1032 *right*) leap='-L leapseconds';; \ 1033 *) leap=;; \ 1034 esac && \ 1035 $(ZIC) $$leap -d $@d $(DATAFORM).zi && \ 1036 $(ZIC) $$leap -d shrunk-$@d tzdata.zi && \ 1037 case $(DATAFORM),$(PACKRATLIST) in \ 1038 main,) \ 1039 $(ZIC) $$leap -d t-$@d $(TDATA) && \ 1040 $(AWK) '/^Rule/' $(TDATA) | \ 1041 $(ZIC) $$leap -d t-$@d - $(PACKRATDATA) && \ 1042 diff -r $@d t-$@d;; \ 1043 esac 1044 diff -r $@d shrunk-$@d 1045 rm -fr $@d t-$@d shrunk-$@d 1046 touch $@ 1047 1048clean_misc: 1049 rm -fr *.ckd *.dir 1050 rm -f *.ck *.core *.o *.out *.t core core.* \ 1051 date tzdir.h tzselect version.h zdump zic libtz.a 1052clean: clean_misc 1053 rm -fr tzdb-*/ 1054 rm -f *.zi $(TZS_NEW) 1055 1056maintainer-clean: clean 1057 @echo 'This command is intended for maintainers to use; it' 1058 @echo 'deletes files that may need special tools to rebuild.' 1059 rm -f leapseconds version $(MANTXTS) $(TZS) *.asc *.tar.* 1060 1061names: 1062 @echo $(ENCHILADA) 1063 1064public: check public.ck $(CHECK_TIME_T_ALTERNATIVES) \ 1065 tarballs signatures 1066 1067date.1.txt: date.1 1068newctime.3.txt: newctime.3 1069newstrftime.3.txt: newstrftime.3 1070newtzset.3.txt: newtzset.3 1071time2posix.3.txt: time2posix.3 1072tzfile.5.txt: tzfile.5 1073tzselect.8.txt: tzselect.8 1074zdump.8.txt: zdump.8 1075zic.8.txt: zic.8 1076 1077$(MANTXTS): workman.sh 1078 LC_ALL=C sh workman.sh $(@:.txt=) >$@.out 1079 mv $@.out $@ 1080 1081# Set file timestamps deterministically if possible, 1082# so that tarballs containing the timestamps are reproducible. 1083# 1084# '$(SET_TIMESTAMP_N) N DEST A B C ...' sets the timestamp of the 1085# file DEST to the maximum of the timestamps of the files A B C ..., 1086# plus N if GNU ls and touch are available. 1087SET_TIMESTAMP_N = sh -c '\ 1088 n=$$0 dest=$$1; shift; \ 1089 <"$$dest" && \ 1090 if test $$n != 0 && \ 1091 lsout=$$(ls -nt --time-style="+%s" "$$@" 2>/dev/null); then \ 1092 set x $$lsout && \ 1093 timestamp=$$(($$7 + $$n)) && \ 1094 echo "+ touch -md @$$timestamp $$dest" && \ 1095 touch -md @$$timestamp "$$dest"; \ 1096 else \ 1097 newest=$$(ls -t "$$@" | sed 1q) && \ 1098 echo "+ touch -mr $$newest $$dest" && \ 1099 touch -mr "$$newest" "$$dest"; \ 1100 fi' 1101# If DEST depends on A B C ... in this Makefile, callers should use 1102# $(SET_TIMESTAMP_DEP) DEST A B C ..., for the benefit of any 1103# downstream 'make' that considers equal timestamps to be out of date. 1104# POSIX allows this 'make' behavior, and HP-UX 'make' does it. 1105# If all that matters is that the timestamp be reproducible 1106# and plausible, use $(SET_TIMESTAMP). 1107SET_TIMESTAMP = $(SET_TIMESTAMP_N) 0 1108SET_TIMESTAMP_DEP = $(SET_TIMESTAMP_N) 1 1109 1110# Set the timestamps to those of the git repository, if available, 1111# and if the files have not changed since then. 1112# This uses GNU 'ls --time-style=+%s', which outputs the seconds count, 1113# and GNU 'touch -d@N FILE', where N is the number of seconds since 1970. 1114# If git or GNU is absent, don't bother to sync with git timestamps. 1115# Also, set the timestamp of each prebuilt file like 'leapseconds' 1116# to be the maximum of the files it depends on. 1117set-timestamps.out: $(EIGHT_YARDS) 1118 rm -f $@ 1119 if (type git) >/dev/null 2>&1 && \ 1120 files=$$(git ls-files $(EIGHT_YARDS)) && \ 1121 touch -md @1 test.out; then \ 1122 rm -f test.out && \ 1123 for file in $$files; do \ 1124 if git diff --quiet HEAD $$file; then \ 1125 time=$$(TZ=UTC0 git log -1 \ 1126 --format='tformat:%cd' \ 1127 --date='format-local:%Y-%m-%dT%H:%M:%SZ' \ 1128 $$file) && \ 1129 echo "+ touch -md $$time $$file" && \ 1130 touch -md $$time $$file; \ 1131 else \ 1132 echo >&2 "$$file: warning: does not match repository"; \ 1133 fi || exit; \ 1134 done; \ 1135 fi 1136 $(SET_TIMESTAMP_DEP) leapseconds $(LEAP_DEPS) 1137 for file in $(MANTXTS); do \ 1138 $(SET_TIMESTAMP_DEP) $$file $${file%.txt} workman.sh || \ 1139 exit; \ 1140 done 1141 $(SET_TIMESTAMP_DEP) version $(VERSION_DEPS) 1142 $(SET_TIMESTAMP_DEP) tzdata.zi $(TZDATA_ZI_DEPS) 1143 touch $@ 1144set-tzs-timestamp.out: $(TZS) 1145 $(SET_TIMESTAMP_DEP) $(TZS) $(TZS_DEPS) 1146 touch $@ 1147 1148# The zics below ensure that each data file can stand on its own. 1149# We also do an all-files run to catch links to links. 1150 1151public.ck: $(VERSION_DEPS) 1152 rm -fr $@d 1153 mkdir $@d 1154 ln $(VERSION_DEPS) $@d 1155 cd $@d \ 1156 && $(MAKE) CFLAGS='$(GCC_DEBUG_FLAGS)' TZDIR='$(TZDIR)' ALL 1157 for i in $(TDATA_TO_CHECK) \ 1158 tzdata.zi vanguard.zi main.zi rearguard.zi; \ 1159 do \ 1160 $@d/zic -v -d $@d/zoneinfo $@d/$$i || exit; \ 1161 done 1162 $@d/zic -v -d $@d/zoneinfo-all $(TDATA_TO_CHECK) 1163 : 1164 : Also check 'backzone' syntax. 1165 rm $@d/main.zi 1166 cd $@d && $(MAKE) PACKRATDATA=backzone main.zi 1167 $@d/zic -d $@d/zoneinfo main.zi 1168 rm $@d/main.zi 1169 cd $@d && \ 1170 $(MAKE) PACKRATDATA=backzone PACKRATLIST=zone.tab main.zi 1171 $@d/zic -d $@d/zoneinfo main.zi 1172 : 1173 rm -fr $@d 1174 touch $@ 1175 1176# Check that the code works under various alternative 1177# implementations of time_t. 1178check_time_t_alternatives: $(TIME_T_ALTERNATIVES) 1179$(TIME_T_ALTERNATIVES_TAIL): $(TIME_T_ALTERNATIVES_HEAD) 1180$(TIME_T_ALTERNATIVES): $(VERSION_DEPS) 1181 rm -fr $@d 1182 mkdir $@d 1183 ln $(VERSION_DEPS) $@d 1184 case $@ in \ 1185 *32_t*) range=-2147483648,2147483648;; \ 1186 u*) range=0,4294967296;; \ 1187 *) range=-4294967296,4294967296;; \ 1188 esac && \ 1189 wd=$$PWD && \ 1190 zones=$$($(AWK) '/^[^#]/ { print $$3 }' <zone1970.tab) && \ 1191 if test $@ = $(TIME_T_ALTERNATIVES_HEAD); then \ 1192 range_target=; \ 1193 else \ 1194 range_target=to$$range.tzs; \ 1195 fi && \ 1196 (cd $@d && \ 1197 $(MAKE) TOPDIR="$$wd/$@d" \ 1198 CFLAGS='$(CFLAGS) -Dtime_tz='"'$(@:.ck=)'" \ 1199 REDO='$(REDO)' \ 1200 D="$$wd/$@d" \ 1201 TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \ 1202 install $$range_target) && \ 1203 test $@ = $(TIME_T_ALTERNATIVES_HEAD) || { \ 1204 (cd $(TIME_T_ALTERNATIVES_HEAD)d && \ 1205 $(MAKE) TOPDIR="$$wd/$@d" \ 1206 TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \ 1207 D="$$wd/$@d" \ 1208 to$$range.tzs) && \ 1209 $(SETUP_DIFF_TZS) && \ 1210 $$DIFF_TZS $(TIME_T_ALTERNATIVES_HEAD)d/to$$range.tzs \ 1211 $@d/to$$range.tzs && \ 1212 if diff -q Makefile Makefile 2>/dev/null; then \ 1213 quiet_option='-q'; \ 1214 else \ 1215 quiet_option=''; \ 1216 fi && \ 1217 diff $$quiet_option -r $(TIME_T_ALTERNATIVES_HEAD)d/etc \ 1218 $@d/etc && \ 1219 diff $$quiet_option -r \ 1220 $(TIME_T_ALTERNATIVES_HEAD)d/usr/share \ 1221 $@d/usr/share; \ 1222 } 1223 touch $@ 1224 1225TRADITIONAL_ASC = \ 1226 tzcode$(VERSION).tar.gz.asc.t \ 1227 tzdata$(VERSION).tar.gz.asc.t 1228REARGUARD_ASC = \ 1229 tzdata$(VERSION)-rearguard.tar.gz.asc.t 1230ALL_ASC = $(TRADITIONAL_ASC) $(REARGUARD_ASC) \ 1231 tzdb-$(VERSION).tar.lz.asc.t 1232 1233tarballs rearguard_tarballs tailored_tarballs traditional_tarballs \ 1234signatures rearguard_signatures traditional_signatures: \ 1235 version set-timestamps.out rearguard.zi vanguard.zi 1236 read -r VERSION <version && \ 1237 $(MAKE) AWK='$(AWK)' VERSION="$$VERSION" $@_version 1238 1239# These *_version rules are intended for use if VERSION is set by some 1240# other means. Ordinarily these rules are used only by the above 1241# non-_version rules, which set VERSION on the 'make' command line. 1242tarballs_version: traditional_tarballs_version rearguard_tarballs_version \ 1243 tzdb-$(VERSION).tar.lz.t 1244rearguard_tarballs_version: \ 1245 tzdata$(VERSION)-rearguard.tar.gz.t 1246traditional_tarballs_version: \ 1247 tzcode$(VERSION).tar.gz.t tzdata$(VERSION).tar.gz.t 1248tailored_tarballs_version: \ 1249 tzdata$(VERSION)-tailored.tar.gz.t 1250signatures_version: $(ALL_ASC) 1251rearguard_signatures_version: $(REARGUARD_ASC) 1252traditional_signatures_version: $(TRADITIONAL_ASC) 1253 1254tzcode$(VERSION).tar.gz.t: set-timestamps.out 1255 $(SETUP_TAR) && \ 1256 $$TAR -cf - \ 1257 $(COMMON) $(DOCS) $(SOURCES) | \ 1258 gzip $(GZIPFLAGS) >$(@:.t=) 1259 $(SET_TIMESTAMP) $(@:.t=) $(COMMON) $(DOCS) $(SOURCES) 1260 touch $@ 1261 1262tzdata$(VERSION).tar.gz.t: set-timestamps.out 1263 $(SETUP_TAR) && \ 1264 $$TAR -cf - $(TZDATA_DIST) | \ 1265 gzip $(GZIPFLAGS) >$(@:.t=) 1266 $(SET_TIMESTAMP) $(@:.t=) $(TZDATA_DIST) 1267 touch $@ 1268 1269# Create empty files with a reproducible timestamp. 1270CREATE_EMPTY = TZ=UTC0 touch -mt 202010122253.00 1271 1272# The obsolescent *rearguard* targets and related macros are present 1273# for backwards compatibility with tz releases 2018e through 2022a. 1274# They should go away eventually. To build rearguard tarballs you 1275# can instead use 'make DATAFORM=rearguard tailored_tarballs'. 1276tzdata$(VERSION)-rearguard.tar.gz.t: rearguard.zi set-timestamps.out 1277 rm -fr $@.dir 1278 mkdir $@.dir 1279 ln $(TZDATA_DIST) $@.dir 1280 cd $@.dir && rm -f $(TDATA) $(PACKRATDATA) version 1281 for f in $(TDATA) $(PACKRATDATA); do \ 1282 rearf=$@.dir/$$f; \ 1283 $(AWK) -v DATAFORM=rearguard -f ziguard.awk $$f >$$rearf && \ 1284 $(SET_TIMESTAMP_DEP) $$rearf ziguard.awk $$f || exit; \ 1285 done 1286 sed '1s/$$/-rearguard/' <version >$@.dir/version 1287 : The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier. 1288 $(CREATE_EMPTY) $@.dir/pacificnew 1289 touch -mr version $@.dir/version 1290 $(SETUP_TAR) && \ 1291 (cd $@.dir && \ 1292 $$TAR -cf - \ 1293 $(TZDATA_DIST) pacificnew | \ 1294 gzip $(GZIPFLAGS)) >$(@:.t=) 1295 $(SET_TIMESTAMP) $(@:.t=) \ 1296 $$(cd $@.dir && \ 1297 ls $(TZDATA_DIST) pacificnew | sed 's,^,$@.dir/,') 1298 touch $@ 1299 1300# Create a tailored tarball suitable for TZUpdater and compatible tools. 1301# For example, 'make DATAFORM=vanguard tailored_tarballs' makes a tarball 1302# useful for testing whether TZUpdater supports vanguard form. 1303# The generated tarball is not byte-for-byte equivalent to a hand-tailored 1304# traditional tarball, as data entries are put into 'etcetera' even if they 1305# came from some other source file. However, the effect should be the same 1306# for ordinary use, which reads all the source files. 1307tzdata$(VERSION)-tailored.tar.gz.t: set-timestamps.out 1308 rm -fr $@.dir 1309 mkdir $@.dir 1310 : The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier. 1311 if test $(DATAFORM) = vanguard; then \ 1312 pacificnew=; \ 1313 else \ 1314 pacificnew=pacificnew; \ 1315 fi && \ 1316 cd $@.dir && \ 1317 $(CREATE_EMPTY) $(PRIMARY_YDATA) $(NDATA) backward \ 1318 $$pacificnew 1319 (sed '/^#/!d' tzdata.zi && echo && cat $(DATAFORM).zi) \ 1320 >$@.dir/etcetera 1321 touch -mr tzdata.zi $@.dir/etcetera 1322 sed -n \ 1323 -e '/^# *version *\(.*\)/h' \ 1324 -e '/^# *ddeps */H' \ 1325 -e '$$!d' \ 1326 -e 'g' \ 1327 -e 's/^# *version *//' \ 1328 -e 's/\n# *ddeps */-/' \ 1329 -e 's/ /-/g' \ 1330 -e 'p' \ 1331 <tzdata.zi >$@.dir/version 1332 touch -mr version $@.dir/version 1333 links= && \ 1334 for file in $(TZDATA_DIST); do \ 1335 test -f $@.dir/$$file || links="$$links $$file"; \ 1336 done && \ 1337 ln $$links $@.dir 1338 $(SETUP_TAR) && \ 1339 (cd $@.dir && \ 1340 $$TAR -cf - *) | gzip $(GZIPFLAGS) >$(@:.t=) 1341 $(SET_TIMESTAMP) $(@:.t=) \ 1342 $$(cd $@.dir && ls * | sed 's,^,$@.dir/,') 1343 touch $@ 1344 1345tzdb-$(VERSION).tar.lz.t: set-timestamps.out set-tzs-timestamp.out 1346 rm -fr tzdb-$(VERSION) 1347 mkdir tzdb-$(VERSION) 1348 ln $(ENCHILADA) tzdb-$(VERSION) 1349 $(SET_TIMESTAMP) tzdb-$(VERSION) tzdb-$(VERSION)/* 1350 $(SETUP_TAR) && \ 1351 $$TAR -cf - tzdb-$(VERSION) | lzip -9 >$(@:.t=) 1352 $(SET_TIMESTAMP) $(@:.t=) tzdb-$(VERSION) 1353 touch $@ 1354 1355tzcode$(VERSION).tar.gz.asc.t: tzcode$(VERSION).tar.gz.t 1356tzdata$(VERSION).tar.gz.asc.t: tzdata$(VERSION).tar.gz.t 1357tzdata$(VERSION)-rearguard.tar.gz.asc.t: tzdata$(VERSION)-rearguard.tar.gz.t 1358tzdb-$(VERSION).tar.lz.asc.t: tzdb-$(VERSION).tar.lz.t 1359$(ALL_ASC): 1360 $(GPG) --armor --detach-sign $(?:.t=) 1361 $(SET_TIMESTAMP) $(@:.t=) $(?:.t=) 1362 touch $@ 1363 1364TYPECHECK_CFLAGS = $(CFLAGS) -DTYPECHECK -D__time_t_defined -D_TIME_T 1365typecheck: long-long.ck unsigned.ck 1366long-long.ck unsigned.ck: $(VERSION_DEPS) 1367 rm -fr $@d 1368 mkdir $@d 1369 ln $(VERSION_DEPS) $@d 1370 cd $@d && \ 1371 case $@ in \ 1372 long-long.*) i="long long";; \ 1373 unsigned.* ) i="unsigned" ;; \ 1374 esac && \ 1375 $(MAKE) \ 1376 CFLAGS="$(TYPECHECK_CFLAGS) \"-Dtime_t=$$i\"" \ 1377 TOPDIR="$$PWD" \ 1378 install 1379 $@d/zdump -i -c 1970,1971 Europe/Rome 1380 touch $@ 1381 1382zonenames: tzdata.zi 1383 @$(AWK) '/^Z/ { print $$2 } /^L/ { print $$3 }' tzdata.zi 1384 1385asctime.o: private.h 1386date.o: private.h 1387difftime.o: private.h 1388localtime.o: private.h tzdir.h tzfile.h 1389strftime.o: localtime.c private.h tzdir.h tzfile.h 1390zdump.o: private.h version.h 1391zic.o: private.h tzdir.h tzfile.h version.h 1392 1393.PHONY: ALL INSTALL all 1394.PHONY: check check_mild check_time_t_alternatives 1395.PHONY: check_web check_zishrink 1396.PHONY: clean clean_misc commit-leap-seconds.list dummy.zd 1397.PHONY: fetch-leap-seconds.list force_tzs 1398.PHONY: install maintainer-clean names 1399.PHONY: posix_only posix_right public 1400.PHONY: rearguard_signatures rearguard_signatures_version 1401.PHONY: rearguard_tarballs rearguard_tarballs_version 1402.PHONY: right_only right_posix signatures signatures_version 1403.PHONY: tarballs tarballs_version 1404.PHONY: traditional_signatures traditional_signatures_version 1405.PHONY: traditional_tarballs traditional_tarballs_version 1406.PHONY: tailored_tarballs tailored_tarballs_version 1407.PHONY: typecheck 1408.PHONY: zonenames zones 1409.PHONY: $(ZDS) 1410