1# Make and install tzdb code and data. 2 3# This file is in the public domain, so clarified as of 4# 2009-05-17 by Arthur David Olson. 5 6# Package name for the code distribution. 7PACKAGE= tzcode 8 9# Version number for the distribution, overridden in the 'tarballs' rule below. 10VERSION= unknown 11 12# Email address for bug reports. 13BUGEMAIL= tz@iana.org 14 15# DATAFORM selects the data format. 16# Available formats represent essentially the same data, albeit 17# possibly with minor discrepancies that users are not likely to notice. 18# To get new features and the best data right away, use: 19# DATAFORM= vanguard 20# To wait a while before using new features, to give downstream users 21# time to upgrade zic (the default), use: 22# DATAFORM= main 23# To wait even longer for new features, use: 24# DATAFORM= rearguard 25# Rearguard users might also want "ZFLAGS = -b fat"; see below. 26DATAFORM= main 27 28# Change the line below for your timezone (after finding the one you want in 29# one of the $(TDATA) source files, or adding it to a source file). 30# Alternatively, if you discover you've got the wrong timezone, you can just 31# 'zic -l -' to remove it, or 'zic -l rightzone' to change it. 32# Use the command 33# make zonenames 34# to get a list of the values you can use for LOCALTIME. 35 36LOCALTIME= Factory 37 38# The POSIXRULES macro controls interpretation of POSIX-like TZ 39# settings like TZ='EET-2EEST' that lack DST transition rules. 40# If POSIXRULES is '-', no template is installed; this is the default. 41# Any other value for POSIXRULES is obsolete and should not be relied on, as: 42# * It does not work correctly in popular implementations such as GNU/Linux. 43# * It does not work even in tzcode, except for historical timestamps 44# that precede the last explicit transition in the POSIXRULES file. 45# Hence it typically does not work for current and future timestamps. 46# If, despite the above, you want a template for handling these settings, 47# you can change the line below (after finding the timezone you want in the 48# one of the $(TDATA) source files, or adding it to a source file). 49# Alternatively, if you discover you've got the wrong timezone, you can just 50# 'zic -p -' to remove it, or 'zic -p rightzone' to change it. 51# Use the command 52# make zonenames 53# to get a list of the values you can use for POSIXRULES. 54 55POSIXRULES= - 56 57# Also see TZDEFRULESTRING below, which takes effect only 58# if POSIXRULES is '-' or if the template file cannot be accessed. 59 60 61# Installation locations. 62# 63# The defaults are suitable for Debian, except that if REDO is 64# posix_right or right_posix then files that Debian puts under 65# /usr/share/zoneinfo/posix and /usr/share/zoneinfo/right are instead 66# put under /usr/share/zoneinfo-posix and /usr/share/zoneinfo-leaps, 67# respectively. Problems with the Debian approach are discussed in 68# the commentary for the right_posix rule (below). 69 70# Destination directory, which can be used for staging. 71# 'make DESTDIR=/stage install' installs under /stage (e.g., to 72# /stage/etc/localtime instead of to /etc/localtime). Files under 73# /stage are not intended to work as-is, but can be copied by hand to 74# the root directory later. If DESTDIR is empty, 'make install' does 75# not stage, but installs directly into production locations. 76DESTDIR = 77 78# Everything is installed into subdirectories of TOPDIR, and used there. 79# TOPDIR should be empty (meaning the root directory), 80# or a directory name that does not end in "/". 81# TOPDIR should be empty or an absolute name unless you're just testing. 82TOPDIR = 83 84# The default local timezone is taken from the file TZDEFAULT. 85TZDEFAULT = $(TOPDIR)/etc/localtime 86 87# The subdirectory containing installed program and data files, and 88# likewise for installed files that can be shared among architectures. 89# These should be relative file names. 90USRDIR = usr 91USRSHAREDIR = $(USRDIR)/share 92 93# "Compiled" timezone information is placed in the "TZDIR" directory 94# (and subdirectories). 95# TZDIR_BASENAME should not contain "/" and should not be ".", ".." or empty. 96TZDIR_BASENAME= zoneinfo 97TZDIR = $(TOPDIR)/$(USRSHAREDIR)/$(TZDIR_BASENAME) 98 99# The "tzselect" and (if you do "make INSTALL") "date" commands go in: 100BINDIR = $(TOPDIR)/$(USRDIR)/bin 101 102# The "zdump" command goes in: 103ZDUMPDIR = $(BINDIR) 104 105# The "zic" command goes in: 106ZICDIR = $(TOPDIR)/$(USRDIR)/sbin 107 108# Manual pages go in subdirectories of. . . 109MANDIR = $(TOPDIR)/$(USRSHAREDIR)/man 110 111# Library functions are put in an archive in LIBDIR. 112LIBDIR = $(TOPDIR)/$(USRDIR)/lib 113 114 115# Types to try, as an alternative to time_t. 116TIME_T_ALTERNATIVES = $(TIME_T_ALTERNATIVES_HEAD) $(TIME_T_ALTERNATIVES_TAIL) 117TIME_T_ALTERNATIVES_HEAD = int_least64_t 118TIME_T_ALTERNATIVES_TAIL = int_least32_t uint_least32_t uint_least64_t 119 120# What kind of TZif data files to generate. (TZif is the binary time 121# zone data format that zic generates; see Internet RFC 8536.) 122# If you want only POSIX time, with time values interpreted as 123# seconds since the epoch (not counting leap seconds), use 124# REDO= posix_only 125# below. If you want only "right" time, with values interpreted 126# as seconds since the epoch (counting leap seconds), use 127# REDO= right_only 128# below. If you want both sets of data available, with leap seconds not 129# counted normally, use 130# REDO= posix_right 131# below. If you want both sets of data available, with leap seconds counted 132# normally, use 133# REDO= right_posix 134# below. POSIX mandates that leap seconds not be counted; for compatibility 135# with it, use "posix_only" or "posix_right". Use POSIX time on systems with 136# leap smearing; this can work better than unsmeared "right" time with 137# applications that are not leap second aware, and is closer to unsmeared 138# "right" time than unsmeared POSIX time is (e.g., 0.5 vs 1.0 s max error). 139 140REDO= posix_right 141 142# Whether to put an "Expires" line in the leapseconds file. 143# Use EXPIRES_LINE=1 to put the line in, 0 to omit it. 144# The EXPIRES_LINE value matters only if REDO's value contains "right". 145# If you change EXPIRES_LINE, remove the leapseconds file before running "make". 146# zic's support for the Expires line was introduced in tzdb 2020a, 147# and was modified in tzdb 2021b to generate version 4 TZif files. 148# EXPIRES_LINE defaults to 0 for now so that the leapseconds file 149# can be given to pre-2020a zic implementations and so that TZif files 150# built by newer zic implementations can be read by pre-2021b libraries. 151EXPIRES_LINE= 0 152 153# To install data in text form that has all the information of the TZif data, 154# (optionally incorporating leap second information), use 155# TZDATA_TEXT= tzdata.zi leapseconds 156# To install text data without leap second information (e.g., because 157# REDO='posix_only'), use 158# TZDATA_TEXT= tzdata.zi 159# To avoid installing text data, use 160# TZDATA_TEXT= 161 162TZDATA_TEXT= leapseconds tzdata.zi 163 164# For backward-compatibility links for old zone names, use 165# BACKWARD= backward 166# To omit these links, use 167# BACKWARD= 168 169BACKWARD= backward 170 171# If you want out-of-scope and often-wrong data from the file 'backzone', 172# but only for entries listed in the backward-compatibility file zone.tab, use 173# PACKRATDATA= backzone 174# PACKRATLIST= zone.tab 175# If you want all the 'backzone' data, use 176# PACKRATDATA= backzone 177# PACKRATLIST= 178# To omit this data, use 179# PACKRATDATA= 180# PACKRATLIST= 181 182PACKRATDATA= 183PACKRATLIST= 184 185# The name of a locale using the UTF-8 encoding, used during self-tests. 186# The tests are skipped if the name does not appear to work on this system. 187 188UTF8_LOCALE= en_US.utf8 189 190# Non-default libraries needed to link. 191# On some hosts, this should have -lintl unless CFLAGS has -DHAVE_GETTEXT=0. 192LDLIBS= 193 194# Add the following to the end of the "CFLAGS=" line as needed to override 195# defaults specified in the source code. "-DFOO" is equivalent to "-DFOO=1". 196# -DDEPRECATE_TWO_DIGIT_YEARS for optional runtime warnings about strftime 197# formats that generate only the last two digits of year numbers 198# -DEPOCH_LOCAL if the 'time' function returns local time not UT 199# -DEPOCH_OFFSET=N if the 'time' function returns a value N greater 200# than what POSIX specifies, assuming local time is UT. 201# For example, N is 252460800 on AmigaOS. 202# -DHAVE_DECL_ASCTIME_R=0 if <time.h> does not declare asctime_r 203# -DHAVE_DECL_ENVIRON if <unistd.h> declares 'environ' 204# -DHAVE_DECL_TIMEGM=0 if <time.h> does not declare timegm 205# -DHAVE_DIRECT_H if mkdir needs <direct.h> (MS-Windows) 206# -DHAVE__GENERIC=0 if _Generic does not work* 207# -DHAVE_GETRANDOM if getrandom works (e.g., GNU/Linux), 208# -DHAVE_GETRANDOM=0 to avoid using getrandom 209# -DHAVE_GETTEXT if gettext works (e.g., GNU/Linux, FreeBSD, Solaris), 210# where LDLIBS also needs to contain -lintl on some hosts; 211# -DHAVE_GETTEXT=0 to avoid using gettext 212# -DHAVE_INCOMPATIBLE_CTIME_R if your system's time.h declares 213# ctime_r and asctime_r incompatibly with the POSIX standard 214# (Solaris when _POSIX_PTHREAD_SEMANTICS is not defined). 215# -DHAVE_INTTYPES_H=0 if <inttypes.h> does not work*+ 216# -DHAVE_LINK=0 if your system lacks a link function 217# -DHAVE_LOCALTIME_R=0 if your system lacks a localtime_r function 218# -DHAVE_LOCALTIME_RZ=0 if you do not want zdump to use localtime_rz 219# localtime_rz can make zdump significantly faster, but is nonstandard. 220# -DHAVE_MALLOC_ERRNO=0 if malloc etc. do not set errno on failure. 221# -DHAVE_POSIX_DECLS=0 if your system's include files do not declare 222# functions like 'link' or variables like 'tzname' required by POSIX 223# -DHAVE_SETENV=0 if your system lacks the setenv function 224# -DHAVE_SNPRINTF=0 if your system lacks the snprintf function+ 225# -DHAVE_STDCKDINT_H=0 if neither <stdckdint.h> nor substitutes like 226# __builtin_add_overflow work* 227# -DHAVE_STDINT_H=0 if <stdint.h> does not work*+ 228# -DHAVE_STRFTIME_L if <time.h> declares locale_t and strftime_l 229# -DHAVE_STRDUP=0 if your system lacks the strdup function 230# -DHAVE_STRTOLL=0 if your system lacks the strtoll function+ 231# -DHAVE_SYMLINK=0 if your system lacks the symlink function 232# -DHAVE_SYS_STAT_H=0 if <sys/stat.h> does not work* 233# -DHAVE_TZSET=0 if your system lacks a tzset function 234# -DHAVE_UNISTD_H=0 if <unistd.h> does not work* 235# -DHAVE_UTMPX_H=0 if <utmpx.h> does not work* 236# -Dlocale_t=XXX if your system uses XXX instead of locale_t 237# -DPORT_TO_C89 if tzcode should also run on C89 platforms+ 238# -DRESERVE_STD_EXT_IDS if your platform reserves standard identifiers 239# with external linkage, e.g., applications cannot define 'localtime'. 240# -Dssize_t=long on hosts like MS-Windows that lack ssize_t 241# -DSUPPORT_C89 if the tzcode library should support C89 callers+ 242# -DSUPPRESS_TZDIR to not prepend TZDIR to file names; this has 243# security implications and is not recommended for general use 244# -DTHREAD_SAFE to make localtime.c thread-safe, as POSIX requires; 245# not needed by the main-program tz code, which is single-threaded. 246# Append other compiler flags as needed, e.g., -pthread on GNU/Linux. 247# -Dtime_tz=\"T\" to use T as the time_t type, rather than the system time_t 248# This is intended for internal use only; it mangles external names. 249# -DTZ_DOMAIN=\"foo\" to use "foo" for gettext domain name; default is "tz" 250# -DTZ_DOMAINDIR=\"/path\" to use "/path" for gettext directory; 251# the default is system-supplied, typically "/usr/lib/locale" 252# -DTZDEFRULESTRING=\",date/time,date/time\" to default to the specified 253# DST transitions for POSIX-style TZ strings lacking them, 254# in the usual case where POSIXRULES is '-'. If not specified, 255# TZDEFRULESTRING defaults to US rules for future DST transitions. 256# This mishandles some past timestamps, as US DST rules have changed. 257# It also mishandles settings like TZ='EET-2EEST' for eastern Europe, 258# as Europe and US DST rules differ. 259# -DTZNAME_MAXIMUM=N to limit time zone abbreviations to N bytes (default 255) 260# -DUNINIT_TRAP if reading uninitialized storage can cause problems 261# other than simply getting garbage data 262# -DUSE_LTZ=0 to build zdump with the system time zone library 263# Also set TZDOBJS=zdump.o and CHECK_TIME_T_ALTERNATIVES= below. 264# -DZIC_BLOAT_DEFAULT=\"fat\" to default zic's -b option to "fat", and 265# similarly for "slim". Fat TZif files work around incompatibilities 266# and bugs in some TZif readers, notably older ones that 267# ignore or otherwise mishandle 64-bit data in TZif files; 268# however, fat TZif files may trigger bugs in newer TZif readers. 269# Slim TZif files are more efficient, and are the default. 270# -DZIC_MAX_ABBR_LEN_WO_WARN=3 271# (or some other number) to set the maximum time zone abbreviation length 272# that zic will accept without a warning (the default is 6) 273# $(GCC_DEBUG_FLAGS) if you are using recent GCC and want lots of checking 274# 275# * Options marked "*" can be omitted if your compiler is C23 compatible. 276# * Options marked "+" are obsolescent and are planned to be removed 277# once the code assumes C99 or later. 278# 279# Select instrumentation via "make GCC_INSTRUMENT='whatever'". 280GCC_INSTRUMENT = \ 281 -fsanitize=undefined -fsanitize-address-use-after-scope \ 282 -fsanitize-undefined-trap-on-error -fstack-protector 283# Omit -fanalyzer from GCC_DEBUG_FLAGS, as it makes GCC too slow. 284GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 -fno-common \ 285 $(GCC_INSTRUMENT) \ 286 -Wall -Wextra \ 287 -Walloc-size-larger-than=100000 -Warray-bounds=2 \ 288 -Wbad-function-cast -Wbidi-chars=any,ucn -Wcast-align=strict -Wdate-time \ 289 -Wdeclaration-after-statement -Wdouble-promotion \ 290 -Wduplicated-branches -Wduplicated-cond \ 291 -Wformat=2 -Wformat-overflow=2 -Wformat-signedness -Wformat-truncation \ 292 -Wimplicit-fallthrough=5 -Winit-self -Wlogical-op \ 293 -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \ 294 -Wnull-dereference \ 295 -Wold-style-definition -Woverlength-strings -Wpointer-arith \ 296 -Wshadow -Wshift-overflow=2 -Wstrict-overflow \ 297 -Wstrict-prototypes -Wstringop-overflow=4 \ 298 -Wstringop-truncation -Wsuggest-attribute=cold \ 299 -Wsuggest-attribute=const -Wsuggest-attribute=format \ 300 -Wsuggest-attribute=malloc \ 301 -Wsuggest-attribute=noreturn -Wsuggest-attribute=pure \ 302 -Wtrampolines -Wundef -Wuninitialized -Wunused-macros -Wuse-after-free=3 \ 303 -Wvariadic-macros -Wvla -Wwrite-strings \ 304 -Wno-address -Wno-format-nonliteral -Wno-sign-compare \ 305 -Wno-type-limits 306# 307# If your system has a "GMT offset" field in its "struct tm"s 308# (or if you decide to add such a field in your system's "time.h" file), 309# add the name to a define such as 310# -DTM_GMTOFF=tm_gmtoff 311# to the end of the "CFLAGS=" line. If not defined, the code attempts to 312# guess TM_GMTOFF from other macros; define NO_TM_GMTOFF to suppress this. 313# Similarly, if your system has a "zone abbreviation" field, define 314# -DTM_ZONE=tm_zone 315# and define NO_TM_ZONE to suppress any guessing. Although these two fields 316# not required by POSIX, a future version of POSIX is planned to require them 317# and they are widely available on GNU/Linux and BSD systems. 318# 319# The next batch of options control support for external variables 320# exported by tzcode. In practice these variables are less useful 321# than TM_GMTOFF and TM_ZONE. However, most of them are standardized. 322# # 323# # To omit or support the external variable "tzname", add one of: 324# # -DHAVE_TZNAME=0 # do not support "tzname" 325# # -DHAVE_TZNAME=1 # support "tzname", which is defined by system library 326# # -DHAVE_TZNAME=2 # support and define "tzname" 327# # to the "CFLAGS=" line. "tzname" is required by POSIX 1988 and later. 328# # If not defined, the code attempts to guess HAVE_TZNAME from other macros. 329# # Warning: unless time_tz is also defined, HAVE_TZNAME=1 can cause 330# # crashes when combined with some platforms' standard libraries, 331# # presumably due to memory allocation issues. 332# # 333# # To omit or support the external variables "timezone" and "daylight", add 334# # -DUSG_COMPAT=0 # do not support 335# # -DUSG_COMPAT=1 # support, and variables are defined by system library 336# # -DUSG_COMPAT=2 # support and define variables 337# # to the "CFLAGS=" line; "timezone" and "daylight" are inspired by 338# # Unix Systems Group code and are required by POSIX 2008 (with XSI) and later. 339# # If not defined, the code attempts to guess USG_COMPAT from other macros. 340# # 341# # To support the external variable "altzone", add 342# # -DALTZONE=0 # do not support 343# # -DALTZONE=1 # support "altzone", which is defined by system library 344# # -DALTZONE=2 # support and define "altzone" 345# # to the end of the "CFLAGS=" line; although "altzone" appeared in 346# # System V Release 3.1 it has not been standardized. 347# # If not defined, the code attempts to guess ALTZONE from other macros. 348# 349# If you want functions that were inspired by early versions of X3J11's work, 350# add 351# -DSTD_INSPIRED 352# to the end of the "CFLAGS=" line. This arranges for the following 353# functions to be added to the time conversion library. 354# "offtime" is like "gmtime" except that it accepts a second (long) argument 355# that gives an offset to add to the time_t when converting it. 356# "offtime_r" is to "offtime" what "gmtime_r" is to "gmtime". 357# "timelocal" is equivalent to "mktime". 358# "timeoff" is like "timegm" except that it accepts a second (long) argument 359# that gives an offset to use when converting to a time_t. 360# "posix2time" and "time2posix" are described in an included manual page. 361# X3J11's work does not describe any of these functions. 362# These functions may well disappear in future releases of the time 363# conversion package. 364# 365# If you don't want functions that were inspired by NetBSD, add 366# -DNETBSD_INSPIRED=0 367# to the end of the "CFLAGS=" line. Otherwise, the functions 368# "localtime_rz", "mktime_z", "tzalloc", and "tzfree" are added to the 369# time library, and if STD_INSPIRED is also defined to nonzero the functions 370# "posix2time_z" and "time2posix_z" are added as well. 371# The functions ending in "_z" (or "_rz") are like their unsuffixed 372# (or suffixed-by-"_r") counterparts, except with an extra first 373# argument of opaque type timezone_t that specifies the timezone. 374# "tzalloc" allocates a timezone_t value, and "tzfree" frees it. 375# 376# If you want to allocate state structures in localtime, add 377# -DALL_STATE 378# to the end of the "CFLAGS=" line. Storage is obtained by calling malloc. 379# 380# NIST-PCTS:151-2, Version 1.4, (1993-12-03) is a test suite put 381# out by the National Institute of Standards and Technology 382# which claims to test C and Posix conformance. If you want to pass PCTS, add 383# -DPCTS 384# to the end of the "CFLAGS=" line. 385# 386# If you want strict compliance with XPG4 as of 1994-04-09, add 387# -DXPG4_1994_04_09 388# to the end of the "CFLAGS=" line. This causes "strftime" to always return 389# 53 as a week number (rather than 52 or 53) for January days before 390# January's first Monday when a "%V" format is used and January 1 391# falls on a Friday, Saturday, or Sunday. 392 393CFLAGS= 394 395# Linker flags. Default to $(LFLAGS) for backwards compatibility 396# to release 2012h and earlier. 397 398LDFLAGS= $(LFLAGS) 399 400# For leap seconds, this Makefile uses LEAPSECONDS='-L leapseconds' in 401# submake command lines. The default is no leap seconds. 402 403LEAPSECONDS= 404 405# The zic command and its arguments. 406 407zic= ./zic 408ZIC= $(zic) $(ZFLAGS) 409 410# To shrink the size of installed TZif files, 411# append "-r @N" to omit data before N-seconds-after-the-Epoch. 412# To grow the files and work around bugs in older applications, 413# possibly at the expense of introducing bugs in newer ones, 414# append "-b fat"; see ZIC_BLOAT_DEFAULT above. 415# See the zic man page for more about -b and -r. 416ZFLAGS= 417 418# How to use zic to install TZif files. 419 420ZIC_INSTALL= $(ZIC) -d '$(DESTDIR)$(TZDIR)' $(LEAPSECONDS) 421 422# The name of a Posix-compliant 'awk' on your system. 423# mawk 1.3.3 and Solaris 10 /usr/bin/awk do not work. 424# Also, it is better (though not essential) if 'awk' supports UTF-8, 425# and unfortunately mawk and busybox awk do not support UTF-8. 426# Try AWK=gawk or AWK=nawk if your awk has the abovementioned problems. 427AWK= awk 428 429# The full path name of a Posix-compliant shell, preferably one that supports 430# the Korn shell's 'select' statement as an extension. 431# These days, Bash is the most popular. 432# It should be OK to set this to /bin/sh, on platforms where /bin/sh 433# lacks 'select' or doesn't completely conform to Posix, but /bin/bash 434# is typically nicer if it works. 435KSHELL= /bin/bash 436 437# Name of curl <https://curl.haxx.se/>, used for HTML validation. 438CURL= curl 439 440# Name of GNU Privacy Guard <https://gnupg.org/>, used to sign distributions. 441GPG= gpg 442 443# This expensive test requires USE_LTZ. 444# To suppress it, define this macro to be empty. 445CHECK_TIME_T_ALTERNATIVES = check_time_t_alternatives 446 447# SAFE_CHAR is a regular expression that matches a safe character. 448# Some parts of this distribution are limited to safe characters; 449# others can use any UTF-8 character. 450# For now, the safe characters are a safe subset of ASCII. 451# The caller must set the shell variable 'sharp' to the character '#', 452# since Makefile macros cannot contain '#'. 453# TAB_CHAR is a single tab character, in single quotes. 454TAB_CHAR= ' ' 455SAFE_CHARSET1= $(TAB_CHAR)' !\"'$$sharp'$$%&'\''()*+,./0123456789:;<=>?@' 456SAFE_CHARSET2= 'ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\^_`' 457SAFE_CHARSET3= 'abcdefghijklmnopqrstuvwxyz{|}~' 458SAFE_CHARSET= $(SAFE_CHARSET1)$(SAFE_CHARSET2)$(SAFE_CHARSET3) 459SAFE_CHAR= '[]'$(SAFE_CHARSET)'-]' 460 461# These non-alphabetic, non-ASCII printable characters are Latin-1, 462# and so are likely displayable even in editors like XEmacs 21 463# that have limited display capabilities. 464UNUSUAL_OK_LATIN_1 = ¡¢£¤¥¦§¨©«¬®¯°±²³´¶·¸¹»¼½¾¿×÷ 465# Non-ASCII non-letters that OK_CHAR allows, as these characters are 466# useful in commentary. 467UNUSUAL_OK_CHARSET= $(UNUSUAL_OK_LATIN_1) 468 469# Put this in a bracket expression to match spaces. 470s = [:space:] 471 472# OK_CHAR matches any character allowed in the distributed files. 473# This is the same as SAFE_CHAR, except that UNUSUAL_OK_CHARSET and 474# multibyte letters are also allowed so that commentary can contain a 475# few safe symbols and people's names and can quote non-English sources. 476# Other non-letters are limited to ASCII renderings for the 477# convenience of maintainers using XEmacs 21.5.34, which by default 478# mishandles Unicode characters U+0100 and greater. 479OK_CHAR= '[][:alpha:]$(UNUSUAL_OK_CHARSET)'$(SAFE_CHARSET)'-]' 480 481# SAFE_LINE matches a line of safe characters. 482# SAFE_SHARP_LINE is similar, except any OK character can follow '#'; 483# this is so that comments can contain non-ASCII characters. 484# OK_LINE matches a line of OK characters. 485SAFE_LINE= '^'$(SAFE_CHAR)'*$$' 486SAFE_SHARP_LINE='^'$(SAFE_CHAR)'*('$$sharp$(OK_CHAR)'*)?$$' 487OK_LINE= '^'$(OK_CHAR)'*$$' 488 489# Flags to give 'tar' when making a distribution. 490# Try to use flags appropriate for GNU tar. 491GNUTARFLAGS= --format=pax --pax-option='delete=atime,delete=ctime' \ 492 --numeric-owner --owner=0 --group=0 \ 493 --mode=go+u,go-w --sort=name 494TARFLAGS= `if tar $(GNUTARFLAGS) --version >/dev/null 2>&1; \ 495 then echo $(GNUTARFLAGS); \ 496 else :; \ 497 fi` 498 499# Flags to give 'gzip' when making a distribution. 500GZIPFLAGS= -9n 501 502# When comparing .tzs files, use GNU diff's -F'^TZ=' option if supported. 503# This makes it easier to see which Zone has been affected. 504DIFF_TZS= diff -u$$(! diff -u -F'^TZ=' - - <>/dev/null >&0 2>&1 \ 505 || echo ' -F^TZ=') 506 507############################################################################### 508 509#MAKE= make 510 511cc= cc 512CC= $(cc) -DTZDIR='"$(TZDIR)"' 513 514AR= ar 515 516# ':' on typical hosts; 'ranlib' on the ancient hosts that still need ranlib. 517RANLIB= : 518 519TZCOBJS= zic.o 520TZDOBJS= zdump.o localtime.o asctime.o strftime.o 521DATEOBJS= date.o localtime.o strftime.o asctime.o 522LIBSRCS= localtime.c asctime.c difftime.c strftime.c 523LIBOBJS= localtime.o asctime.o difftime.o strftime.o 524HEADERS= tzfile.h private.h 525NONLIBSRCS= zic.c zdump.c 526NEWUCBSRCS= date.c 527SOURCES= $(HEADERS) $(LIBSRCS) $(NONLIBSRCS) $(NEWUCBSRCS) \ 528 tzselect.ksh workman.sh 529MANS= newctime.3 newstrftime.3 newtzset.3 time2posix.3 \ 530 tzfile.5 tzselect.8 zic.8 zdump.8 531MANTXTS= newctime.3.txt newstrftime.3.txt newtzset.3.txt \ 532 time2posix.3.txt \ 533 tzfile.5.txt tzselect.8.txt zic.8.txt zdump.8.txt \ 534 date.1.txt 535COMMON= calendars CONTRIBUTING LICENSE Makefile \ 536 NEWS README SECURITY theory.html version 537WEB_PAGES= tz-art.html tz-how-to.html tz-link.html 538CHECK_WEB_PAGES=check_theory.html check_tz-art.html \ 539 check_tz-how-to.html check_tz-link.html 540DOCS= $(MANS) date.1 $(MANTXTS) $(WEB_PAGES) 541PRIMARY_YDATA= africa antarctica asia australasia \ 542 europe northamerica southamerica 543YDATA= $(PRIMARY_YDATA) etcetera 544NDATA= factory 545TDATA_TO_CHECK= $(YDATA) $(NDATA) backward 546TDATA= $(YDATA) $(NDATA) $(BACKWARD) 547ZONETABLES= zone1970.tab zone.tab 548TABDATA= iso3166.tab $(TZDATA_TEXT) $(ZONETABLES) 549LEAP_DEPS= leapseconds.awk leap-seconds.list 550TZDATA_ZI_DEPS= ziguard.awk zishrink.awk version $(TDATA) \ 551 $(PACKRATDATA) $(PACKRATLIST) 552DSTDATA_ZI_DEPS= ziguard.awk $(TDATA) $(PACKRATDATA) $(PACKRATLIST) 553DATA= $(TDATA_TO_CHECK) backzone iso3166.tab leap-seconds.list \ 554 leapseconds $(ZONETABLES) 555AWK_SCRIPTS= checklinks.awk checktab.awk leapseconds.awk \ 556 ziguard.awk zishrink.awk 557MISC= $(AWK_SCRIPTS) 558TZS_YEAR= 2050 559TZS_CUTOFF_FLAG= -c $(TZS_YEAR) 560TZS= to$(TZS_YEAR).tzs 561TZS_NEW= to$(TZS_YEAR)new.tzs 562TZS_DEPS= $(YDATA) asctime.c localtime.c \ 563 private.h tzfile.h zdump.c zic.c 564TZDATA_DIST = $(COMMON) $(DATA) $(MISC) 565# EIGHT_YARDS is just a yard short of the whole ENCHILADA. 566EIGHT_YARDS = $(TZDATA_DIST) $(DOCS) $(SOURCES) tzdata.zi 567ENCHILADA = $(EIGHT_YARDS) $(TZS) 568 569# Consult these files when deciding whether to rebuild the 'version' file. 570# This list is not the same as the output of 'git ls-files', since 571# .gitignore is not distributed. 572VERSION_DEPS= \ 573 calendars CONTRIBUTING LICENSE Makefile NEWS README SECURITY \ 574 africa antarctica asctime.c asia australasia \ 575 backward backzone \ 576 checklinks.awk checktab.awk \ 577 date.1 date.c difftime.c \ 578 etcetera europe factory iso3166.tab \ 579 leap-seconds.list leapseconds.awk localtime.c \ 580 newctime.3 newstrftime.3 newtzset.3 northamerica \ 581 private.h southamerica strftime.c theory.html \ 582 time2posix.3 tz-art.html tz-how-to.html tz-link.html \ 583 tzfile.5 tzfile.h tzselect.8 tzselect.ksh \ 584 workman.sh zdump.8 zdump.c zic.8 zic.c \ 585 ziguard.awk zishrink.awk \ 586 zone.tab zone1970.tab 587 588# And for the benefit of csh users on systems that assume the user 589# shell should be used to handle commands in Makefiles. . . 590 591SHELL= /bin/sh 592 593all: tzselect zic zdump libtz.a $(TABDATA) \ 594 vanguard.zi main.zi rearguard.zi 595 596ALL: all date $(ENCHILADA) 597 598install: all $(DATA) $(REDO) $(MANS) 599 mkdir -p '$(DESTDIR)$(BINDIR)' \ 600 '$(DESTDIR)$(ZDUMPDIR)' '$(DESTDIR)$(ZICDIR)' \ 601 '$(DESTDIR)$(LIBDIR)' \ 602 '$(DESTDIR)$(MANDIR)/man3' '$(DESTDIR)$(MANDIR)/man5' \ 603 '$(DESTDIR)$(MANDIR)/man8' 604 $(ZIC_INSTALL) -l $(LOCALTIME) \ 605 `case '$(POSIXRULES)' in ?*) echo '-p';; esac \ 606 ` $(POSIXRULES) \ 607 -t '$(DESTDIR)$(TZDEFAULT)' 608 cp -f $(TABDATA) '$(DESTDIR)$(TZDIR)/.' 609 cp tzselect '$(DESTDIR)$(BINDIR)/.' 610 cp zdump '$(DESTDIR)$(ZDUMPDIR)/.' 611 cp zic '$(DESTDIR)$(ZICDIR)/.' 612 cp libtz.a '$(DESTDIR)$(LIBDIR)/.' 613 $(RANLIB) '$(DESTDIR)$(LIBDIR)/libtz.a' 614 cp -f newctime.3 newtzset.3 '$(DESTDIR)$(MANDIR)/man3/.' 615 cp -f tzfile.5 '$(DESTDIR)$(MANDIR)/man5/.' 616 cp -f tzselect.8 zdump.8 zic.8 '$(DESTDIR)$(MANDIR)/man8/.' 617 618INSTALL: ALL install date.1 619 mkdir -p '$(DESTDIR)$(BINDIR)' '$(DESTDIR)$(MANDIR)/man1' 620 cp date '$(DESTDIR)$(BINDIR)/.' 621 cp -f date.1 '$(DESTDIR)$(MANDIR)/man1/.' 622 623# Calculate version number from git, if available. 624# Otherwise, use $(VERSION) unless it is "unknown" and there is already 625# a 'version' file, in which case reuse the existing 'version' contents 626# and append "-dirty" if the contents do not already end in "-dirty". 627version: $(VERSION_DEPS) 628 { (type git) >/dev/null 2>&1 && \ 629 V=`git describe --match '[0-9][0-9][0-9][0-9][a-z]*' \ 630 --abbrev=7 --dirty` || \ 631 if test '$(VERSION)' = unknown && V=`cat $@`; then \ 632 case $$V in *-dirty);; *) V=$$V-dirty;; esac; \ 633 else \ 634 V='$(VERSION)'; \ 635 fi; } && \ 636 printf '%s\n' "$$V" >$@.out 637 mv $@.out $@ 638 639# These files can be tailored by setting BACKWARD, PACKRATDATA, PACKRATLIST. 640vanguard.zi main.zi rearguard.zi: $(DSTDATA_ZI_DEPS) 641 $(AWK) \ 642 -v DATAFORM=`expr $@ : '\(.*\).zi'` \ 643 -v PACKRATDATA='$(PACKRATDATA)' \ 644 -v PACKRATLIST='$(PACKRATLIST)' \ 645 -f ziguard.awk \ 646 $(TDATA) $(PACKRATDATA) >$@.out 647 mv $@.out $@ 648# This file has a version comment that attempts to capture any tailoring 649# via BACKWARD, DATAFORM, PACKRATDATA, PACKRATLIST, and REDO. 650tzdata.zi: $(DATAFORM).zi version zishrink.awk 651 version=`sed 1q version` && \ 652 LC_ALL=C $(AWK) \ 653 -v dataform='$(DATAFORM)' \ 654 -v deps='$(DSTDATA_ZI_DEPS) zishrink.awk' \ 655 -v redo='$(REDO)' \ 656 -v version="$$version" \ 657 -f zishrink.awk \ 658 $(DATAFORM).zi >$@.out 659 mv $@.out $@ 660 661version.h: version 662 VERSION=`cat version` && printf '%s\n' \ 663 'static char const PKGVERSION[]="($(PACKAGE)) ";' \ 664 "static char const TZVERSION[]=\"$$VERSION\";" \ 665 'static char const REPORT_BUGS_TO[]="$(BUGEMAIL)";' \ 666 >$@.out 667 mv $@.out $@ 668 669zdump: $(TZDOBJS) 670 $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZDOBJS) $(LDLIBS) 671 672zic: $(TZCOBJS) 673 $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZCOBJS) $(LDLIBS) 674 675leapseconds: $(LEAP_DEPS) 676 $(AWK) -v EXPIRES_LINE=$(EXPIRES_LINE) \ 677 -f leapseconds.awk leap-seconds.list >$@.out 678 mv $@.out $@ 679 680# Arguments to pass to submakes of install_data. 681# They can be overridden by later submake arguments. 682INSTALLARGS = \ 683 BACKWARD='$(BACKWARD)' \ 684 DESTDIR='$(DESTDIR)' \ 685 LEAPSECONDS='$(LEAPSECONDS)' \ 686 PACKRATDATA='$(PACKRATDATA)' \ 687 PACKRATLIST='$(PACKRATLIST)' \ 688 TZDEFAULT='$(TZDEFAULT)' \ 689 TZDIR='$(TZDIR)' \ 690 ZIC='$(ZIC)' 691 692INSTALL_DATA_DEPS = zic leapseconds tzdata.zi 693 694# 'make install_data' installs one set of TZif files. 695install_data: $(INSTALL_DATA_DEPS) 696 $(ZIC_INSTALL) tzdata.zi 697 698posix_only: $(INSTALL_DATA_DEPS) 699 $(MAKE) $(INSTALLARGS) LEAPSECONDS= install_data 700 701right_only: $(INSTALL_DATA_DEPS) 702 $(MAKE) $(INSTALLARGS) LEAPSECONDS='-L leapseconds' \ 703 install_data 704 705# In earlier versions of this makefile, the other two directories were 706# subdirectories of $(TZDIR). However, this led to configuration errors. 707# For example, with posix_right under the earlier scheme, 708# TZ='right/Australia/Adelaide' got you localtime with leap seconds, 709# but gmtime without leap seconds, which led to problems with applications 710# like sendmail that subtract gmtime from localtime. 711# Therefore, the other two directories are now siblings of $(TZDIR). 712# You must replace all of $(TZDIR) to switch from not using leap seconds 713# to using them, or vice versa. 714right_posix: right_only 715 rm -fr '$(DESTDIR)$(TZDIR)-leaps' 716 ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-leaps' || \ 717 $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only 718 $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only 719 720posix_right: posix_only 721 rm -fr '$(DESTDIR)$(TZDIR)-posix' 722 ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-posix' || \ 723 $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only 724 $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only 725 726zones: $(REDO) 727 728# dummy.zd is not a real file; it is mentioned here only so that the 729# top-level 'make' does not have a syntax error. 730ZDS = dummy.zd 731# Rule used only by submakes invoked by the $(TZS_NEW) rule. 732# It is separate so that GNU 'make -j' can run instances in parallel. 733$(ZDS): zdump 734 ./zdump -i $(TZS_CUTOFF_FLAG) '$(wd)/'$$(expr $@ : '\(.*\).zd') \ 735 >$@ 736 737TZS_NEW_DEPS = tzdata.zi zdump zic 738$(TZS_NEW): $(TZS_NEW_DEPS) 739 rm -fr tzs$(TZS_YEAR).dir 740 mkdir tzs$(TZS_YEAR).dir 741 $(zic) -d tzs$(TZS_YEAR).dir tzdata.zi 742 $(AWK) '/^L/{print "Link\t" $$2 "\t" $$3}' \ 743 tzdata.zi | LC_ALL=C sort >$@.out 744 wd=`pwd` && \ 745 x=`$(AWK) '/^Z/{print "tzs$(TZS_YEAR).dir/" $$2 ".zd"}' \ 746 tzdata.zi \ 747 | LC_ALL=C sort -t . -k 2,2` && \ 748 set x $$x && \ 749 shift && \ 750 ZDS=$$* && \ 751 $(MAKE) wd="$$wd" TZS_CUTOFF_FLAG="$(TZS_CUTOFF_FLAG)" \ 752 ZDS="$$ZDS" $$ZDS && \ 753 sed 's,^TZ=".*\.dir/,TZ=",' $$ZDS >>$@.out 754 rm -fr tzs$(TZS_YEAR).dir 755 mv $@.out $@ 756 757# If $(TZS) exists but 'make check_tzs' fails, a maintainer should inspect the 758# failed output and fix the inconsistency, perhaps by running 'make force_tzs'. 759$(TZS): 760 touch $@ 761 762force_tzs: $(TZS_NEW) 763 cp $(TZS_NEW) $(TZS) 764 765libtz.a: $(LIBOBJS) 766 rm -f $@ 767 $(AR) -rc $@ $(LIBOBJS) 768 $(RANLIB) $@ 769 770date: $(DATEOBJS) 771 $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(DATEOBJS) $(LDLIBS) 772 773tzselect: tzselect.ksh version 774 VERSION=`cat version` && sed \ 775 -e 's|#!/bin/bash|#!$(KSHELL)|g' \ 776 -e 's|AWK=[^}]*|AWK='\''$(AWK)'\''|g' \ 777 -e 's|\(PKGVERSION\)=.*|\1='\''($(PACKAGE)) '\''|' \ 778 -e 's|\(REPORT_BUGS_TO\)=.*|\1=$(BUGEMAIL)|' \ 779 -e 's|TZDIR=[^}]*|TZDIR=$(TZDIR)|' \ 780 -e 's|\(TZVERSION\)=.*|\1='"$$VERSION"'|' \ 781 <$@.ksh >$@.out 782 chmod +x $@.out 783 mv $@.out $@ 784 785check: check_back check_mild 786check_mild: check_character_set check_white_space check_links \ 787 check_name_lengths check_slashed_abbrs check_sorted \ 788 check_tables check_web check_ziguard check_zishrink check_tzs 789 790check_character_set: $(ENCHILADA) 791 test ! '$(UTF8_LOCALE)' || \ 792 ! printf 'A\304\200B\n' | \ 793 LC_ALL='$(UTF8_LOCALE)' grep -q '^A.B$$' >/dev/null 2>&1 || { \ 794 LC_ALL='$(UTF8_LOCALE)' && export LC_ALL && \ 795 sharp='#' && \ 796 ! grep -Env $(SAFE_LINE) $(MANS) date.1 $(MANTXTS) \ 797 $(MISC) $(SOURCES) $(WEB_PAGES) \ 798 CONTRIBUTING LICENSE README SECURITY \ 799 version tzdata.zi && \ 800 ! grep -Env $(SAFE_LINE)'|^UNUSUAL_OK_'$(OK_CHAR)'*$$' \ 801 Makefile && \ 802 ! grep -Env $(SAFE_SHARP_LINE) $(TDATA_TO_CHECK) backzone \ 803 leapseconds zone.tab && \ 804 ! grep -Env $(OK_LINE) $(ENCHILADA); \ 805 } 806 touch $@ 807 808check_white_space: $(ENCHILADA) 809 patfmt=' \t|[\f\r\v]' && pat=`printf "$$patfmt\\n"` && \ 810 ! grep -En "$$pat" \ 811 $$(ls $(ENCHILADA) | grep -Fvx leap-seconds.list) 812 ! grep -n '[$s]$$' \ 813 $$(ls $(ENCHILADA) | grep -Fvx leap-seconds.list) 814 touch $@ 815 816PRECEDES_FILE_NAME = ^(Zone|Link[$s]+[^$s]+)[$s]+ 817FILE_NAME_COMPONENT_TOO_LONG = $(PRECEDES_FILE_NAME)[^$s]*[^/$s]{15} 818 819check_name_lengths: $(TDATA_TO_CHECK) backzone 820 ! grep -En '$(FILE_NAME_COMPONENT_TOO_LONG)' \ 821 $(TDATA_TO_CHECK) backzone 822 touch $@ 823 824PRECEDES_STDOFF = ^(Zone[$s]+[^$s]+)?[$s]+ 825STDOFF = [-+]?[0-9:.]+ 826RULELESS_SAVE = (-|$(STDOFF)[sd]?) 827RULELESS_SLASHED_ABBRS = \ 828 $(PRECEDES_STDOFF)$(STDOFF)[$s]+$(RULELESS_SAVE)[$s]+[^$s]*/ 829 830check_slashed_abbrs: $(TDATA_TO_CHECK) 831 ! grep -En '$(RULELESS_SLASHED_ABBRS)' $(TDATA_TO_CHECK) 832 touch $@ 833 834CHECK_CC_LIST = { n = split($$1,a,/,/); for (i=2; i<=n; i++) print a[1], a[i]; } 835 836check_sorted: backward backzone 837 $(AWK) '/^Link/ {printf "%.5d %s\n", g, $$3} !/./ {g++}' \ 838 backward | LC_ALL=C sort -cu 839 $(AWK) '/^Zone/ {print $$2}' backzone | LC_ALL=C sort -cu 840 touch $@ 841 842check_back: checklinks.awk $(TDATA_TO_CHECK) 843 $(AWK) \ 844 -v DATAFORM=$(DATAFORM) \ 845 -v backcheck=backward \ 846 -f checklinks.awk $(TDATA_TO_CHECK) 847 touch $@ 848 849check_links: checklinks.awk tzdata.zi 850 $(AWK) \ 851 -v DATAFORM=$(DATAFORM) \ 852 -f checklinks.awk tzdata.zi 853 touch $@ 854 855check_tables: checktab.awk $(YDATA) backward $(ZONETABLES) 856 for tab in $(ZONETABLES); do \ 857 test "$$tab" = zone.tab && links='$(BACKWARD)' || links=''; \ 858 $(AWK) -f checktab.awk -v zone_table=$$tab $(YDATA) $$links \ 859 || exit; \ 860 done 861 touch $@ 862 863check_tzs: $(TZS) $(TZS_NEW) 864 if test -s $(TZS); then \ 865 $(DIFF_TZS) $(TZS) $(TZS_NEW); \ 866 else \ 867 cp $(TZS_NEW) $(TZS); \ 868 fi 869 touch $@ 870 871check_web: $(CHECK_WEB_PAGES) 872check_theory.html: theory.html 873check_tz-art.html: tz-art.html 874check_tz-how-to.html: tz-how-to.html 875check_tz-link.html: tz-link.html 876check_theory.html check_tz-art.html check_tz-how-to.html check_tz-link.html: 877 $(CURL) -sS --url https://validator.w3.org/nu/ -F out=gnu \ 878 -F file=@$$(expr $@ : 'check_\(.*\)') -o $@.out && \ 879 test ! -s $@.out || { cat $@.out; exit 1; } 880 mv $@.out $@ 881 882check_ziguard: rearguard.zi vanguard.zi ziguard.awk 883 $(AWK) -v DATAFORM=rearguard -f ziguard.awk vanguard.zi | \ 884 diff -u rearguard.zi - 885 $(AWK) -v DATAFORM=vanguard -f ziguard.awk rearguard.zi | \ 886 diff -u vanguard.zi - 887 touch $@ 888 889# Check that zishrink.awk does not alter the data, and that ziguard.awk 890# preserves main-format data. 891check_zishrink: check_zishrink_posix check_zishrink_right 892check_zishrink_posix check_zishrink_right: \ 893 zic leapseconds $(PACKRATDATA) $(PACKRATLIST) \ 894 $(TDATA) $(DATAFORM).zi tzdata.zi 895 rm -fr $@.dir $@-t.dir $@-shrunk.dir 896 mkdir $@.dir $@-t.dir $@-shrunk.dir 897 case $@ in \ 898 *_right) leap='-L leapseconds';; \ 899 *) leap=;; \ 900 esac && \ 901 $(ZIC) $$leap -d $@.dir $(DATAFORM).zi && \ 902 $(ZIC) $$leap -d $@-shrunk.dir tzdata.zi && \ 903 case $(DATAFORM),$(PACKRATLIST) in \ 904 main,) \ 905 $(ZIC) $$leap -d $@-t.dir $(TDATA) && \ 906 $(AWK) '/^Rule/' $(TDATA) | \ 907 $(ZIC) $$leap -d $@-t.dir - $(PACKRATDATA) && \ 908 diff -r $@.dir $@-t.dir;; \ 909 esac 910 diff -r $@.dir $@-shrunk.dir 911 rm -fr $@.dir $@-t.dir $@-shrunk.dir 912 touch $@ 913 914clean_misc: 915 rm -fr check_*.dir 916 rm -f *.o *.out $(TIME_T_ALTERNATIVES) \ 917 check_* core typecheck_* \ 918 date tzselect version.h zdump zic libtz.a 919clean: clean_misc 920 rm -fr *.dir tzdb-*/ 921 rm -f *.zi $(TZS_NEW) 922 923maintainer-clean: clean 924 @echo 'This command is intended for maintainers to use; it' 925 @echo 'deletes files that may need special tools to rebuild.' 926 rm -f leapseconds version $(MANTXTS) $(TZS) *.asc *.tar.* 927 928names: 929 @echo $(ENCHILADA) 930 931public: check check_public $(CHECK_TIME_T_ALTERNATIVES) \ 932 tarballs signatures 933 934date.1.txt: date.1 935newctime.3.txt: newctime.3 936newstrftime.3.txt: newstrftime.3 937newtzset.3.txt: newtzset.3 938time2posix.3.txt: time2posix.3 939tzfile.5.txt: tzfile.5 940tzselect.8.txt: tzselect.8 941zdump.8.txt: zdump.8 942zic.8.txt: zic.8 943 944$(MANTXTS): workman.sh 945 LC_ALL=C sh workman.sh `expr $@ : '\(.*\)\.txt$$'` >$@.out 946 mv $@.out $@ 947 948# Set file timestamps deterministically if possible, 949# so that tarballs containing the timestamps are reproducible. 950# 951# '$(SET_TIMESTAMP_N) N DEST A B C ...' sets the timestamp of the 952# file DEST to the maximum of the timestamps of the files A B C ..., 953# plus N if GNU ls and touch are available. 954SET_TIMESTAMP_N = sh -c '\ 955 n=$$0 dest=$$1; shift; \ 956 touch -cmr `ls -t "$$@" | sed 1q` "$$dest" && \ 957 if test $$n != 0 && \ 958 lsout=`ls -n --time-style="+%s" "$$dest" 2>/dev/null`; then \ 959 set x $$lsout && \ 960 touch -cmd @`expr $$7 + $$n` "$$dest"; \ 961 else :; fi' 962# If DEST depends on A B C ... in this Makefile, callers should use 963# $(SET_TIMESTAMP_DEP) DEST A B C ..., for the benefit of any 964# downstream 'make' that considers equal timestamps to be out of date. 965# POSIX allows this 'make' behavior, and HP-UX 'make' does it. 966# If all that matters is that the timestamp be reproducible 967# and plausible, use $(SET_TIMESTAMP). 968SET_TIMESTAMP = $(SET_TIMESTAMP_N) 0 969SET_TIMESTAMP_DEP = $(SET_TIMESTAMP_N) 1 970 971# Set the timestamps to those of the git repository, if available, 972# and if the files have not changed since then. 973# This uses GNU 'ls --time-style=+%s', which outputs the seconds count, 974# and GNU 'touch -d@N FILE', where N is the number of seconds since 1970. 975# If git or GNU is absent, don't bother to sync with git timestamps. 976# Also, set the timestamp of each prebuilt file like 'leapseconds' 977# to be the maximum of the files it depends on. 978set-timestamps.out: $(EIGHT_YARDS) 979 rm -f $@ 980 if (type git) >/dev/null 2>&1 && \ 981 files=`git ls-files $(EIGHT_YARDS)` && \ 982 touch -md @1 test.out; then \ 983 rm -f test.out && \ 984 for file in $$files; do \ 985 if git diff --quiet $$file; then \ 986 time=`git log -1 --format='tformat:%ct' $$file` && \ 987 touch -cmd @$$time $$file; \ 988 else \ 989 echo >&2 "$$file: warning: does not match repository"; \ 990 fi || exit; \ 991 done; \ 992 fi 993 $(SET_TIMESTAMP_DEP) leapseconds $(LEAP_DEPS) 994 for file in `ls $(MANTXTS) | sed 's/\.txt$$//'`; do \ 995 $(SET_TIMESTAMP_DEP) $$file.txt $$file workman.sh || \ 996 exit; \ 997 done 998 $(SET_TIMESTAMP_DEP) version $(VERSION_DEPS) 999 $(SET_TIMESTAMP_DEP) tzdata.zi $(TZDATA_ZI_DEPS) 1000 touch $@ 1001set-tzs-timestamp.out: $(TZS) 1002 $(SET_TIMESTAMP_DEP) $(TZS) $(TZS_DEPS) 1003 touch $@ 1004 1005# The zics below ensure that each data file can stand on its own. 1006# We also do an all-files run to catch links to links. 1007 1008check_public: $(VERSION_DEPS) 1009 rm -fr public.dir 1010 mkdir public.dir 1011 ln $(VERSION_DEPS) public.dir 1012 cd public.dir && $(MAKE) CFLAGS='$(GCC_DEBUG_FLAGS)' ALL 1013 for i in $(TDATA_TO_CHECK) public.dir/tzdata.zi \ 1014 public.dir/vanguard.zi public.dir/main.zi \ 1015 public.dir/rearguard.zi; \ 1016 do \ 1017 public.dir/zic -v -d public.dir/zoneinfo $$i 2>&1 || exit; \ 1018 done 1019 public.dir/zic -v -d public.dir/zoneinfo-all $(TDATA_TO_CHECK) 1020 : 1021 : Also check 'backzone' syntax. 1022 rm public.dir/main.zi 1023 cd public.dir && $(MAKE) PACKRATDATA=backzone main.zi 1024 public.dir/zic -d public.dir/zoneinfo main.zi 1025 rm public.dir/main.zi 1026 cd public.dir && \ 1027 $(MAKE) PACKRATDATA=backzone PACKRATLIST=zone.tab main.zi 1028 public.dir/zic -d public.dir/zoneinfo main.zi 1029 : 1030 rm -fr public.dir 1031 touch $@ 1032 1033# Check that the code works under various alternative 1034# implementations of time_t. 1035check_time_t_alternatives: $(TIME_T_ALTERNATIVES) 1036$(TIME_T_ALTERNATIVES_TAIL): $(TIME_T_ALTERNATIVES_HEAD) 1037$(TIME_T_ALTERNATIVES): $(VERSION_DEPS) 1038 rm -fr $@.dir 1039 mkdir $@.dir 1040 ln $(VERSION_DEPS) $@.dir 1041 case $@ in \ 1042 int*32_t) range=-2147483648,2147483648;; \ 1043 u*) range=0,4294967296;; \ 1044 *) range=-4294967296,4294967296;; \ 1045 esac && \ 1046 wd=`pwd` && \ 1047 zones=`$(AWK) '/^[^#]/ { print $$3 }' <zone1970.tab` && \ 1048 if test $@ = $(TIME_T_ALTERNATIVES_HEAD); then \ 1049 range_target=; \ 1050 else \ 1051 range_target=to$$range.tzs; \ 1052 fi && \ 1053 (cd $@.dir && \ 1054 $(MAKE) TOPDIR="$$wd/$@.dir" \ 1055 CFLAGS='$(CFLAGS) -Dtime_tz='"'$@'" \ 1056 REDO='$(REDO)' \ 1057 D=$$wd/$@.dir \ 1058 TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \ 1059 install $$range_target) && \ 1060 test $@ = $(TIME_T_ALTERNATIVES_HEAD) || { \ 1061 (cd $(TIME_T_ALTERNATIVES_HEAD).dir && \ 1062 $(MAKE) TOPDIR="$$wd/$@.dir" \ 1063 TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \ 1064 D=$$wd/$@.dir \ 1065 to$$range.tzs) && \ 1066 $(DIFF_TZS) $(TIME_T_ALTERNATIVES_HEAD).dir/to$$range.tzs \ 1067 $@.dir/to$$range.tzs && \ 1068 if diff -q Makefile Makefile 2>/dev/null; then \ 1069 quiet_option='-q'; \ 1070 else \ 1071 quiet_option=''; \ 1072 fi && \ 1073 diff $$quiet_option -r $(TIME_T_ALTERNATIVES_HEAD).dir/etc \ 1074 $@.dir/etc && \ 1075 diff $$quiet_option -r \ 1076 $(TIME_T_ALTERNATIVES_HEAD).dir/usr/share \ 1077 $@.dir/usr/share; \ 1078 } 1079 touch $@ 1080 1081TRADITIONAL_ASC = \ 1082 tzcode$(VERSION).tar.gz.asc \ 1083 tzdata$(VERSION).tar.gz.asc 1084REARGUARD_ASC = \ 1085 tzdata$(VERSION)-rearguard.tar.gz.asc 1086ALL_ASC = $(TRADITIONAL_ASC) $(REARGUARD_ASC) \ 1087 tzdb-$(VERSION).tar.lz.asc 1088 1089tarballs rearguard_tarballs tailored_tarballs traditional_tarballs \ 1090signatures rearguard_signatures traditional_signatures: \ 1091 version set-timestamps.out rearguard.zi vanguard.zi 1092 VERSION=`cat version` && \ 1093 $(MAKE) AWK='$(AWK)' VERSION="$$VERSION" $@_version 1094 1095# These *_version rules are intended for use if VERSION is set by some 1096# other means. Ordinarily these rules are used only by the above 1097# non-_version rules, which set VERSION on the 'make' command line. 1098tarballs_version: traditional_tarballs_version rearguard_tarballs_version \ 1099 tzdb-$(VERSION).tar.lz 1100rearguard_tarballs_version: \ 1101 tzdata$(VERSION)-rearguard.tar.gz 1102traditional_tarballs_version: \ 1103 tzcode$(VERSION).tar.gz tzdata$(VERSION).tar.gz 1104tailored_tarballs_version: \ 1105 tzdata$(VERSION)-tailored.tar.gz 1106signatures_version: $(ALL_ASC) 1107rearguard_signatures_version: $(REARGUARD_ASC) 1108traditional_signatures_version: $(TRADITIONAL_ASC) 1109 1110tzcode$(VERSION).tar.gz: set-timestamps.out 1111 LC_ALL=C && export LC_ALL && \ 1112 tar $(TARFLAGS) -cf - \ 1113 $(COMMON) $(DOCS) $(SOURCES) | \ 1114 gzip $(GZIPFLAGS) >$@.out 1115 mv $@.out $@ 1116 1117tzdata$(VERSION).tar.gz: set-timestamps.out 1118 LC_ALL=C && export LC_ALL && \ 1119 tar $(TARFLAGS) -cf - $(TZDATA_DIST) | \ 1120 gzip $(GZIPFLAGS) >$@.out 1121 mv $@.out $@ 1122 1123# Create empty files with a reproducible timestamp. 1124CREATE_EMPTY = TZ=UTC0 touch -mt 202010122253.00 1125 1126# The obsolescent *rearguard* targets and related macros are present 1127# for backwards compatibility with tz releases 2018e through 2022a. 1128# They should go away eventually. To build rearguard tarballs you 1129# can instead use 'make DATAFORM=rearguard tailored_tarballs'. 1130tzdata$(VERSION)-rearguard.tar.gz: rearguard.zi set-timestamps.out 1131 rm -fr $@.dir 1132 mkdir $@.dir 1133 ln $(TZDATA_DIST) $@.dir 1134 cd $@.dir && rm -f $(TDATA) $(PACKRATDATA) version 1135 for f in $(TDATA) $(PACKRATDATA); do \ 1136 rearf=$@.dir/$$f; \ 1137 $(AWK) -v DATAFORM=rearguard -f ziguard.awk $$f >$$rearf && \ 1138 $(SET_TIMESTAMP_DEP) $$rearf ziguard.awk $$f || exit; \ 1139 done 1140 sed '1s/$$/-rearguard/' <version >$@.dir/version 1141 : The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier. 1142 $(CREATE_EMPTY) $@.dir/pacificnew 1143 touch -cmr version $@.dir/version 1144 LC_ALL=C && export LC_ALL && \ 1145 (cd $@.dir && \ 1146 tar $(TARFLAGS) -cf - \ 1147 $(TZDATA_DIST) pacificnew | \ 1148 gzip $(GZIPFLAGS)) >$@.out 1149 mv $@.out $@ 1150 1151# Create a tailored tarball suitable for TZUpdater and compatible tools. 1152# For example, 'make DATAFORM=vanguard tailored_tarballs' makes a tarball 1153# useful for testing whether TZUpdater supports vanguard form. 1154# The generated tarball is not byte-for-byte equivalent to a hand-tailored 1155# traditional tarball, as data entries are put into 'etcetera' even if they 1156# came from some other source file. However, the effect should be the same 1157# for ordinary use, which reads all the source files. 1158tzdata$(VERSION)-tailored.tar.gz: set-timestamps.out 1159 rm -fr $@.dir 1160 mkdir $@.dir 1161 : The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier. 1162 cd $@.dir && \ 1163 $(CREATE_EMPTY) $(PRIMARY_YDATA) $(NDATA) backward \ 1164 `test $(DATAFORM) = vanguard || echo pacificnew` 1165 (grep '^#' tzdata.zi && echo && cat $(DATAFORM).zi) \ 1166 >$@.dir/etcetera 1167 touch -cmr tzdata.zi $@.dir/etcetera 1168 sed -n \ 1169 -e '/^# *version *\(.*\)/h' \ 1170 -e '/^# *ddeps */H' \ 1171 -e '$$!d' \ 1172 -e 'g' \ 1173 -e 's/^# *version *//' \ 1174 -e 's/\n# *ddeps */-/' \ 1175 -e 's/ /-/g' \ 1176 -e 'p' \ 1177 <tzdata.zi >$@.dir/version 1178 touch -cmr version $@.dir/version 1179 links= && \ 1180 for file in $(TZDATA_DIST); do \ 1181 test -f $@.dir/$$file || links="$$links $$file"; \ 1182 done && \ 1183 ln $$links $@.dir 1184 LC_ALL=C && export LC_ALL && \ 1185 (cd $@.dir && \ 1186 tar $(TARFLAGS) -cf - * | gzip $(GZIPFLAGS)) >$@.out 1187 mv $@.out $@ 1188 1189tzdb-$(VERSION).tar.lz: set-timestamps.out set-tzs-timestamp.out 1190 rm -fr tzdb-$(VERSION) 1191 mkdir tzdb-$(VERSION) 1192 ln $(ENCHILADA) tzdb-$(VERSION) 1193 $(SET_TIMESTAMP) tzdb-$(VERSION) tzdb-$(VERSION)/* 1194 LC_ALL=C && export LC_ALL && \ 1195 tar $(TARFLAGS) -cf - tzdb-$(VERSION) | lzip -9 >$@.out 1196 mv $@.out $@ 1197 1198tzcode$(VERSION).tar.gz.asc: tzcode$(VERSION).tar.gz 1199tzdata$(VERSION).tar.gz.asc: tzdata$(VERSION).tar.gz 1200tzdata$(VERSION)-rearguard.tar.gz.asc: tzdata$(VERSION)-rearguard.tar.gz 1201tzdb-$(VERSION).tar.lz.asc: tzdb-$(VERSION).tar.lz 1202$(ALL_ASC): 1203 $(GPG) --armor --detach-sign $? 1204 1205TYPECHECK_CFLAGS = $(CFLAGS) -DTYPECHECK -D__time_t_defined -D_TIME_T 1206typecheck: typecheck_long_long typecheck_unsigned 1207typecheck_long_long typecheck_unsigned: $(VERSION_DEPS) 1208 rm -fr $@.dir 1209 mkdir $@.dir 1210 ln $(VERSION_DEPS) $@.dir 1211 cd $@.dir && \ 1212 case $@ in \ 1213 *_long_long) i="long long";; \ 1214 *_unsigned ) i="unsigned" ;; \ 1215 esac && \ 1216 typecheck_cflags='' && \ 1217 $(MAKE) \ 1218 CFLAGS="$(TYPECHECK_CFLAGS) \"-Dtime_t=$$i\"" \ 1219 TOPDIR="`pwd`" \ 1220 install 1221 $@.dir/zdump -i -c 1970,1971 Europe/Rome 1222 touch $@ 1223 1224zonenames: tzdata.zi 1225 @$(AWK) '/^Z/ { print $$2 } /^L/ { print $$3 }' tzdata.zi 1226 1227asctime.o: private.h tzfile.h 1228date.o: private.h 1229difftime.o: private.h 1230localtime.o: private.h tzfile.h 1231strftime.o: private.h tzfile.h 1232zdump.o: version.h 1233zic.o: private.h tzfile.h version.h 1234 1235.PHONY: ALL INSTALL all 1236.PHONY: check check_mild check_time_t_alternatives 1237.PHONY: check_web check_zishrink 1238.PHONY: clean clean_misc dummy.zd force_tzs 1239.PHONY: install install_data maintainer-clean names 1240.PHONY: posix_only posix_right public 1241.PHONY: rearguard_signatures rearguard_signatures_version 1242.PHONY: rearguard_tarballs rearguard_tarballs_version 1243.PHONY: right_only right_posix signatures signatures_version 1244.PHONY: tarballs tarballs_version 1245.PHONY: traditional_signatures traditional_signatures_version 1246.PHONY: traditional_tarballs traditional_tarballs_version 1247.PHONY: tailored_tarballs tailored_tarballs_version 1248.PHONY: typecheck 1249.PHONY: zonenames zones 1250.PHONY: $(ZDS) 1251