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# Make and install tzdb code and data.
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.
# Request POSIX conformance; this must be the first non-comment line.
.POSIX:
# On older platforms you may need to scrounge for a POSIX-conforming 'make'.
# For example, on Solaris 10 (2005), use /usr/sfw/bin/gmake or
# /usr/xpg4/bin/make, not /usr/ccs/bin/make.
# To affect how this Makefile works, you can run a shell script like this:
#
# #!/bin/sh
# make CC='gcc -std=gnu11' "$@"
#
# This example script is appropriate for a pre-2017 GNU/Linux system
# where a non-default setting is needed to support this package's use of C99.
#
# Alternatively, you can simply edit this Makefile to tailor the following
# macro definitions.
###############################################################################
# Start of macros that one plausibly might want to tailor.
# Package name for the code distribution.
PACKAGE= tzcode
# Version number for the distribution, overridden in the 'tarballs' rule below.
VERSION= unknown
# Email address for bug reports.
BUGEMAIL= tz@iana.org
# DATAFORM selects the data format.
# Available formats represent essentially the same data, albeit
# possibly with minor discrepancies that users are not likely to notice.
# To get new features and the best data right away, use:
# DATAFORM= vanguard
# To wait a while before using new features, to give downstream users
# time to upgrade zic (the default), use:
# DATAFORM= main
# To wait even longer for new features, use:
# DATAFORM= rearguard
# Rearguard users might also want "ZFLAGS = -b fat"; see below.
DATAFORM= main
# Change the line below for your timezone (after finding the one you want in
# one of the $(TDATA) source files, or adding it to a source file).
# Alternatively, if you discover you've got the wrong timezone, you can just
# 'zic -l -' to remove it, or 'zic -l rightzone' to change it.
# Use the command
# make zonenames
# to get a list of the values you can use for LOCALTIME.
LOCALTIME= Factory
# The POSIXRULES macro controls interpretation of POSIX-2017.1-like TZ
# settings like TZ='EET-2EEST' that lack DST transition rules.
# If POSIXRULES is '-', no template is installed; this is the default.
# Any other value for POSIXRULES is obsolete and should not be relied on, as:
# * It does not work correctly in popular implementations such as GNU/Linux.
# * It does not work even in tzcode, except for historical timestamps
# that precede the last explicit transition in the POSIXRULES file.
# Hence it typically does not work for current and future timestamps.
# If, despite the above, you want a template for handling these settings,
# you can change the line below (after finding the timezone you want in the
# one of the $(TDATA) source files, or adding it to a source file).
# Alternatively, if you discover you've got the wrong timezone, you can just
# 'zic -p -' to remove it, or 'zic -p rightzone' to change it.
# Use the command
# make zonenames
# to get a list of the values you can use for POSIXRULES.
POSIXRULES= -
# Also see TZDEFRULESTRING below, which takes effect only
# if POSIXRULES is '-' or if the template file cannot be accessed.
# Installation locations.
#
# The defaults are suitable for Debian, except that if REDO is
# posix_right or right_posix then files that Debian puts under
# /usr/share/zoneinfo/posix and /usr/share/zoneinfo/right are instead
# put under /usr/share/zoneinfo-posix and /usr/share/zoneinfo-leaps,
# respectively. Problems with the Debian approach are discussed in
# the commentary for the right_posix rule (below).
# Destination directory, which can be used for staging.
# 'make DESTDIR=/stage install' installs under /stage (e.g., to
# /stage/etc/localtime instead of to /etc/localtime). Files under
# /stage are not intended to work as-is, but can be copied by hand to
# the root directory later. If DESTDIR is empty, 'make install' does
# not stage, but installs directly into production locations.
DESTDIR =
# Everything is installed into subdirectories of TOPDIR, and used there.
# TOPDIR should be empty (meaning the root directory),
# or a directory name that does not end in "/".
# TOPDIR should be empty or an absolute name unless you're just testing.
TOPDIR =
# The default local timezone is taken from the file TZDEFAULT.
TZDEFAULT = $(TOPDIR)/etc/localtime
# The subdirectory containing installed program and data files, and
# likewise for installed files that can be shared among architectures.
# These should be relative file names.
USRDIR = usr
USRSHAREDIR = $(USRDIR)/share
# "Compiled" timezone information is placed in the "TZDIR" directory
# (and subdirectories).
# TZDIR_BASENAME should not contain "/" and should not be ".", ".." or empty.
TZDIR_BASENAME= zoneinfo
TZDIR = $(TOPDIR)/$(USRSHAREDIR)/$(TZDIR_BASENAME)
# The "tzselect" and (if you do "make INSTALL") "date" commands go in:
BINDIR = $(TOPDIR)/$(USRDIR)/bin
# The "zdump" command goes in:
ZDUMPDIR = $(BINDIR)
# The "zic" command goes in:
ZICDIR = $(TOPDIR)/$(USRDIR)/sbin
# Manual pages go in subdirectories of. . .
MANDIR = $(TOPDIR)/$(USRSHAREDIR)/man
# Library functions are put in an archive in LIBDIR.
LIBDIR = $(TOPDIR)/$(USRDIR)/lib
# Types to try, as an alternative to time_t.
TIME_T_ALTERNATIVES = $(TIME_T_ALTERNATIVES_HEAD) $(TIME_T_ALTERNATIVES_TAIL)
TIME_T_ALTERNATIVES_HEAD = int_least64_t
TIME_T_ALTERNATIVES_TAIL = int_least32_t uint_least32_t uint_least64_t
# What kind of TZif data files to generate. (TZif is the binary time
# zone data format that zic generates; see Internet RFC 8536.)
# If you want only POSIX time, with time values interpreted as
# seconds since the epoch (not counting leap seconds), use
# REDO= posix_only
# below. If you want only "right" time, with values interpreted
# as seconds since the epoch (counting leap seconds), use
# REDO= right_only
# below. If you want both sets of data available, with leap seconds not
# counted normally, use
# REDO= posix_right
# below. If you want both sets of data available, with leap seconds counted
# normally, use
# REDO= right_posix
# below. POSIX mandates that leap seconds not be counted; for compatibility
# with it, use "posix_only" or "posix_right". Use POSIX time on systems with
# leap smearing; this can work better than unsmeared "right" time with
# applications that are not leap second aware, and is closer to unsmeared
# "right" time than unsmeared POSIX time is (e.g., 0.5 vs 1.0 s max error).
REDO= posix_right
# Whether to put an "Expires" line in the leapseconds file.
# Use EXPIRES_LINE=1 to put the line in, 0 to omit it.
# The EXPIRES_LINE value matters only if REDO's value contains "right".
# If you change EXPIRES_LINE, remove the leapseconds file before running "make".
# zic's support for the Expires line was introduced in tzdb 2020a,
# and was modified in tzdb 2021b to generate version 4 TZif files.
# EXPIRES_LINE defaults to 0 for now so that the leapseconds file
# can be given to pre-2020a zic implementations and so that TZif files
# built by newer zic implementations can be read by pre-2021b libraries.
EXPIRES_LINE= 0
# To install data in text form that has all the information of the TZif data,
# (optionally incorporating leap second information), use
# TZDATA_TEXT= tzdata.zi leapseconds
# To install text data without leap second information (e.g., because
# REDO='posix_only'), use
# TZDATA_TEXT= tzdata.zi
# To avoid installing text data, use
# TZDATA_TEXT=
TZDATA_TEXT= leapseconds tzdata.zi
# For backward-compatibility links for old zone names, use
# BACKWARD= backward
# To omit these links, use
# BACKWARD=
BACKWARD= backward
# If you want out-of-scope and often-wrong data from the file 'backzone',
# but only for entries listed in the backward-compatibility file zone.tab, use
# PACKRATDATA= backzone
# PACKRATLIST= zone.tab
# If you want all the 'backzone' data, use
# PACKRATDATA= backzone
# PACKRATLIST=
# To omit this data, use
# PACKRATDATA=
# PACKRATLIST=
PACKRATDATA=
PACKRATLIST=
# The name of a locale using the UTF-8 encoding, used during self-tests.
# The tests are skipped if the name does not appear to work on this system.
UTF8_LOCALE= en_US.utf8
# Non-default libraries needed to link.
# On some hosts, this should have -lintl unless CFLAGS has -DHAVE_GETTEXT=0.
LDLIBS=
# Add the following to an uncommented "CFLAGS=" line as needed
# to override defaults specified in the source code or by the system.
# "-DFOO" is equivalent to "-DFOO=1".
# -DDEPRECATE_TWO_DIGIT_YEARS for optional runtime warnings about strftime
# formats that generate only the last two digits of year numbers
# -DEPOCH_LOCAL if the 'time' function returns local time not UT
# -DEPOCH_OFFSET=N if the 'time' function returns a value N greater
# than what POSIX specifies, assuming local time is UT.
# For example, N is 252460800 on AmigaOS.
# -DHAVE_DECL_ASCTIME_R=0 if <time.h> does not declare asctime_r
# -DHAVE_DECL_ENVIRON if <unistd.h> declares 'environ'
# -DHAVE_DECL_TIMEGM=0 if <time.h> does not declare timegm
# -DHAVE_DIRECT_H if mkdir needs <direct.h> (MS-Windows)
# -DHAVE__GENERIC=0 if _Generic does not work*
# -DHAVE_GETRANDOM if getrandom works (e.g., GNU/Linux),
# -DHAVE_GETRANDOM=0 to avoid using getrandom
# -DHAVE_GETTEXT if gettext works (e.g., GNU/Linux, FreeBSD, Solaris),
# where LDLIBS also needs to contain -lintl on some hosts;
# -DHAVE_GETTEXT=0 to avoid using gettext
# -DHAVE_INCOMPATIBLE_CTIME_R if your system's time.h declares
# ctime_r and asctime_r incompatibly with the POSIX standard
# (Solaris when _POSIX_PTHREAD_SEMANTICS is not defined).
# -DHAVE_INTTYPES_H=0 if <inttypes.h> does not work*+
# -DHAVE_LINK=0 if your system lacks a link function
# -DHAVE_LOCALTIME_R=0 if your system lacks a localtime_r function
# -DHAVE_LOCALTIME_RZ=0 if you do not want zdump to use localtime_rz
# localtime_rz can make zdump significantly faster, but is nonstandard.
# -DHAVE_MALLOC_ERRNO=0 if malloc etc. do not set errno on failure.
# -DHAVE_POSIX_DECLS=0 if your system's include files do not declare
# functions like 'link' or variables like 'tzname' required by POSIX
# -DHAVE_SETENV=0 if your system lacks the setenv function
# -DHAVE_SNPRINTF=0 if your system lacks the snprintf function+
# -DHAVE_STDCKDINT_H=0 if neither <stdckdint.h> nor substitutes like
# __builtin_add_overflow work*
# -DHAVE_STDINT_H=0 if <stdint.h> does not work*+
# -DHAVE_STRFTIME_L if <time.h> declares locale_t and strftime_l
# -DHAVE_STRDUP=0 if your system lacks the strdup function
# -DHAVE_STRTOLL=0 if your system lacks the strtoll function+
# -DHAVE_SYMLINK=0 if your system lacks the symlink function
# -DHAVE_SYS_STAT_H=0 if <sys/stat.h> does not work*
# -DHAVE_TZSET=0 if your system lacks a tzset function
# -DHAVE_UNISTD_H=0 if <unistd.h> does not work*
# -DHAVE_UTMPX_H=0 if <utmpx.h> does not work*
# -Dlocale_t=XXX if your system uses XXX instead of locale_t
# -DPORT_TO_C89 if tzcode should also run on mostly-C89 platforms+
# Typically it is better to use a later standard. For example,
# with GCC 4.9.4 (2016), prefer '-std=gnu11' to '-DPORT_TO_C89'.
# Even with -DPORT_TO_C89, the code needs at least one C99
# feature (integers at least 64 bits wide) and maybe more.
# -DRESERVE_STD_EXT_IDS if your platform reserves standard identifiers
# with external linkage, e.g., applications cannot define 'localtime'.
# -Dssize_t=long on hosts like MS-Windows that lack ssize_t
# -DSUPPORT_C89 if the tzcode library should support C89 callers+
# However, this might trigger latent bugs in C99-or-later callers.
# -DSUPPRESS_TZDIR to not prepend TZDIR to file names; this has
# security implications and is not recommended for general use
# -DTHREAD_SAFE to make localtime.c thread-safe, as POSIX requires;
# not needed by the main-program tz code, which is single-threaded.
# Append other compiler flags as needed, e.g., -pthread on GNU/Linux.
# -Dtime_tz=\"T\" to use T as the time_t type, rather than the system time_t
# This is intended for internal use only; it mangles external names.
# -DTZ_DOMAIN=\"foo\" to use "foo" for gettext domain name; default is "tz"
# -DTZ_DOMAINDIR=\"/path\" to use "/path" for gettext directory;
# the default is system-supplied, typically "/usr/lib/locale"
# -DTZDEFRULESTRING=\",date/time,date/time\" to default to the specified
# DST transitions for POSIX.1-2017-style TZ strings lacking them,
# in the usual case where POSIXRULES is '-'. If not specified,
# TZDEFRULESTRING defaults to US rules for future DST transitions.
# This mishandles some past timestamps, as US DST rules have changed.
# It also mishandles settings like TZ='EET-2EEST' for eastern Europe,
# as Europe and US DST rules differ.
# -DTZNAME_MAXIMUM=N to limit time zone abbreviations to N bytes (default 255)
# -DUNINIT_TRAP if reading uninitialized storage can cause problems
# other than simply getting garbage data
# -DUSE_LTZ=0 to build zdump with the system time zone library
# Also set TZDOBJS=zdump.o and CHECK_TIME_T_ALTERNATIVES= below.
# -DZIC_BLOAT_DEFAULT=\"fat\" to default zic's -b option to "fat", and
# similarly for "slim". Fat TZif files work around incompatibilities
# and bugs in some TZif readers, notably older ones that
# ignore or otherwise mishandle 64-bit data in TZif files;
# however, fat TZif files may trigger bugs in newer TZif readers.
# Slim TZif files are more efficient, and are the default.
# -DZIC_MAX_ABBR_LEN_WO_WARN=3
# (or some other number) to set the maximum time zone abbreviation length
# that zic will accept without a warning (the default is 6)
# -g to generate symbolic debugging info
# -Idir to include from directory 'dir'
# -O0 to disable optimization; other -O options to enable more optimization
# -Uname to remove any definition of the macro 'name'
# $(GCC_DEBUG_FLAGS) if you are using recent GCC and want lots of checking
#
# * Options marked "*" can be omitted if your compiler is C23 compatible.
# * Options marked "+" are obsolescent and are planned to be removed
# once the code assumes C99 or later, say in the year 2029.
#
# Select instrumentation via "make GCC_INSTRUMENT='whatever'".
GCC_INSTRUMENT = \
-fsanitize=undefined -fsanitize-address-use-after-scope \
-fsanitize-undefined-trap-on-error -fstack-protector
# Omit -fanalyzer from GCC_DEBUG_FLAGS, as it makes GCC too slow.
GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 -fno-common \
$(GCC_INSTRUMENT) \
-Wall -Wextra \
-Walloc-size-larger-than=100000 -Warray-bounds=2 \
-Wbad-function-cast -Wbidi-chars=any,ucn -Wcast-align=strict -Wdate-time \
-Wdeclaration-after-statement -Wdouble-promotion \
-Wduplicated-branches -Wduplicated-cond \
-Wformat=2 -Wformat-overflow=2 -Wformat-signedness -Wformat-truncation \
-Wimplicit-fallthrough=5 -Winit-self -Wlogical-op \
-Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
-Wnull-dereference \
-Wold-style-definition -Woverlength-strings -Wpointer-arith \
-Wshadow -Wshift-overflow=2 -Wstrict-overflow \
-Wstrict-prototypes -Wstringop-overflow=4 \
-Wstringop-truncation -Wsuggest-attribute=cold \
-Wsuggest-attribute=const -Wsuggest-attribute=format \
-Wsuggest-attribute=malloc \
-Wsuggest-attribute=noreturn -Wsuggest-attribute=pure \
-Wtrampolines -Wundef -Wuninitialized -Wunused-macros -Wuse-after-free=3 \
-Wvariadic-macros -Wvla -Wwrite-strings \
-Wno-address -Wno-format-nonliteral -Wno-sign-compare \
-Wno-type-limits
#
# If your system has a "GMT offset" field in its "struct tm"s
# (or if you decide to add such a field in your system's "time.h" file),
# add the name to a define such as
# -DTM_GMTOFF=tm_gmtoff
# to the end of the "CFLAGS=" line. If not defined, the code attempts to
# guess TM_GMTOFF from other macros; define NO_TM_GMTOFF to suppress this.
# Similarly, if your system has a "zone abbreviation" field, define
# -DTM_ZONE=tm_zone
# and define NO_TM_ZONE to suppress any guessing.
# Although these two fields are not required by POSIX.1-2017,
# POSIX 202x/D4 requires them and they are widely available
# on GNU/Linux and BSD systems.
#
# The next batch of options control support for external variables
# exported by tzcode. In practice these variables are less useful
# than TM_GMTOFF and TM_ZONE. However, most of them are standardized.
# #
# # To omit or support the external variable "tzname", add one of:
# # -DHAVE_TZNAME=0 # do not support "tzname"
# # -DHAVE_TZNAME=1 # support "tzname", which is defined by system library
# # -DHAVE_TZNAME=2 # support and define "tzname"
# # to the "CFLAGS=" line. "tzname" is required by POSIX.1-1988 and later.
# # If not defined, the code attempts to guess HAVE_TZNAME from other macros.
# # Warning: unless time_tz is also defined, HAVE_TZNAME=1 can cause
# # crashes when combined with some platforms' standard libraries,
# # presumably due to memory allocation issues.
# #
# # To omit or support the external variables "timezone" and "daylight", add
# # -DUSG_COMPAT=0 # do not support
# # -DUSG_COMPAT=1 # support, and variables are defined by system library
# # -DUSG_COMPAT=2 # support and define variables
# # to the "CFLAGS=" line; "timezone" and "daylight" are inspired by Unix
# # Systems Group code and are required by POSIX.1-2008 and later (with XSI).
# # If not defined, the code attempts to guess USG_COMPAT from other macros.
# #
# # To support the external variable "altzone", add
# # -DALTZONE=0 # do not support
# # -DALTZONE=1 # support "altzone", which is defined by system library
# # -DALTZONE=2 # support and define "altzone"
# # to the end of the "CFLAGS=" line; although "altzone" appeared in
# # System V Release 3.1 it has not been standardized.
# # If not defined, the code attempts to guess ALTZONE from other macros.
#
# If you want functions that were inspired by early versions of X3J11's work,
# add
# -DSTD_INSPIRED
# to the end of the "CFLAGS=" line. This arranges for the following
# functions to be added to the time conversion library.
# "offtime" is like "gmtime" except that it accepts a second (long) argument
# that gives an offset to add to the time_t when converting it.
# I.e., "offtime" is like calling "localtime_rz" with a fixed-offset zone.
# "timelocal" is nearly equivalent to "mktime".
# "timeoff" is like "timegm" except that it accepts a second (long) argument
# that gives an offset to use when converting to a time_t.
# I.e., "timeoff" is like calling "mktime_z" with a fixed-offset zone.
# "posix2time" and "time2posix" are described in an included manual page.
# X3J11's work does not describe any of these functions.
# These functions may well disappear in future releases of the time
# conversion package.
#
# If you don't want functions that were inspired by NetBSD, add
# -DNETBSD_INSPIRED=0
# to the end of the "CFLAGS=" line. Otherwise, the functions
# "localtime_rz", "mktime_z", "tzalloc", and "tzfree" are added to the
# time library, and if STD_INSPIRED is also defined to nonzero the functions
# "posix2time_z" and "time2posix_z" are added as well.
# The functions ending in "_z" (or "_rz") are like their unsuffixed
# (or suffixed-by-"_r") counterparts, except with an extra first
# argument of opaque type timezone_t that specifies the timezone.
# "tzalloc" allocates a timezone_t value, and "tzfree" frees it.
#
# If you want to allocate state structures in localtime, add
# -DALL_STATE
# to the end of the "CFLAGS=" line. Storage is obtained by calling malloc.
#
# NIST-PCTS:151-2, Version 1.4, (1993-12-03) is a test suite put
# out by the National Institute of Standards and Technology
# which claims to test C and POSIX conformance. If you want to pass PCTS, add
# -DPCTS
# to the end of the "CFLAGS=" line.
#
# If you want strict compliance with XPG4 as of 1994-04-09, add
# -DXPG4_1994_04_09
# to the end of the "CFLAGS=" line. This causes "strftime" to always return
# 53 as a week number (rather than 52 or 53) for January days before
# January's first Monday when a "%V" format is used and January 1
# falls on a Friday, Saturday, or Sunday.
#
# POSIX says CFLAGS defaults to "-O 1".
# Uncomment the following line and edit its contents as needed.
#CFLAGS= -O 1
# The name of a POSIX-like library archiver, its flags, C compiler,
# linker flags, and 'make' utility. Ordinarily the defaults suffice.
# The commented-out values are the defaults specified by POSIX.1-202x/D4.
#AR = ar
#ARFLAGS = -rv
#CC = c17
#LDFLAGS =
#MAKE = make
# For leap seconds, this Makefile uses LEAPSECONDS='-L leapseconds' in
# submake command lines. The default is no leap seconds.
LEAPSECONDS=
# Where to fetch leap-seconds.list from.
leaplist_URI = \
https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list
# The file is generated by the IERS Earth Orientation Centre, in Paris.
leaplist_TZ = Europe/Paris
# The zic command and its arguments.
zic= ./zic
ZIC= $(zic) $(ZFLAGS)
# To shrink the size of installed TZif files,
# append "-r @N" to omit data before N-seconds-after-the-Epoch.
# To grow the files and work around bugs in older applications,
# possibly at the expense of introducing bugs in newer ones,
# append "-b fat"; see ZIC_BLOAT_DEFAULT above.
# See the zic man page for more about -b and -r.
ZFLAGS=
# How to use zic to install TZif files.
ZIC_INSTALL= $(ZIC) -d '$(DESTDIR)$(TZDIR)' $(LEAPSECONDS)
# The name of a POSIX-compliant 'awk' on your system.
# mawk 1.3.3 and Solaris 10 /usr/bin/awk do not work.
# Also, it is better (though not essential) if 'awk' supports UTF-8,
# and unfortunately mawk and busybox awk do not support UTF-8.
# Try AWK=gawk or AWK=nawk if your awk has the abovementioned problems.
AWK= awk
# The full path name of a POSIX-compliant shell, preferably one that supports
# the Korn shell's 'select' statement as an extension.
# These days, Bash is the most popular.
# It should be OK to set this to /bin/sh, on platforms where /bin/sh
# lacks 'select' or doesn't completely conform to POSIX, but /bin/bash
# is typically nicer if it works.
KSHELL= /bin/bash
# Name of curl <https://curl.haxx.se/>, used for HTML validation
# and to fetch leap-seconds.list from upstream.
CURL= curl
# Name of GNU Privacy Guard <https://gnupg.org/>, used to sign distributions.
GPG= gpg
# This expensive test requires USE_LTZ.
# To suppress it, define this macro to be empty.
CHECK_TIME_T_ALTERNATIVES = check_time_t_alternatives
# SAFE_CHAR is a regular expression that matches a safe character.
# Some parts of this distribution are limited to safe characters;
# others can use any UTF-8 character.
# For now, the safe characters are a safe subset of ASCII.
# The caller must set the shell variable 'sharp' to the character '#',
# since Makefile macros cannot contain '#'.
# TAB_CHAR is a single tab character, in single quotes.
TAB_CHAR= ' '
SAFE_CHARSET1= $(TAB_CHAR)' !\"'$$sharp'$$%&'\''()*+,./0123456789:;<=>?@'
SAFE_CHARSET2= 'ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\^_`'
SAFE_CHARSET3= 'abcdefghijklmnopqrstuvwxyz{|}~'
SAFE_CHARSET= $(SAFE_CHARSET1)$(SAFE_CHARSET2)$(SAFE_CHARSET3)
SAFE_CHAR= '[]'$(SAFE_CHARSET)'-]'
# These non-alphabetic, non-ASCII printable characters are Latin-1,
# and so are likely displayable even in editors like XEmacs 21
# that have limited display capabilities.
UNUSUAL_OK_LATIN_1 = ¡¢£¤¥¦§¨©«¬®¯°±²³´¶·¸¹»¼½¾¿×÷
# Non-ASCII non-letters that OK_CHAR allows, as these characters are
# useful in commentary.
UNUSUAL_OK_CHARSET= $(UNUSUAL_OK_LATIN_1)
# Put this in a bracket expression to match spaces.
s = [:space:]
# OK_CHAR matches any character allowed in the distributed files.
# This is the same as SAFE_CHAR, except that UNUSUAL_OK_CHARSET and
# multibyte letters are also allowed so that commentary can contain a
# few safe symbols and people's names and can quote non-English sources.
# Other non-letters are limited to ASCII renderings for the
# convenience of maintainers using XEmacs 21.5.34, which by default
# mishandles Unicode characters U+0100 and greater.
OK_CHAR= '[][:alpha:]$(UNUSUAL_OK_CHARSET)'$(SAFE_CHARSET)'-]'
# SAFE_LINE matches a line of safe characters.
# SAFE_SHARP_LINE is similar, except any OK character can follow '#';
# this is so that comments can contain non-ASCII characters.
# OK_LINE matches a line of OK characters.
SAFE_LINE= '^'$(SAFE_CHAR)'*$$'
SAFE_SHARP_LINE='^'$(SAFE_CHAR)'*('$$sharp$(OK_CHAR)'*)?$$'
OK_LINE= '^'$(OK_CHAR)'*$$'
# Flags to give 'tar' when making a distribution.
# Try to use flags appropriate for GNU tar.
GNUTARFLAGS= --format=pax --pax-option='delete=atime,delete=ctime' \
--numeric-owner --owner=0 --group=0 \
--mode=go+u,go-w --sort=name
TARFLAGS= `if tar $(GNUTARFLAGS) --version >/dev/null 2>&1; \
then echo $(GNUTARFLAGS); \
else :; \
fi`
# Flags to give 'gzip' when making a distribution.
GZIPFLAGS= -9n
# When comparing .tzs files, use GNU diff's -F'^TZ=' option if supported.
# This makes it easier to see which Zone has been affected.
DIFF_TZS= diff -u$$(! diff -u -F'^TZ=' - - <>/dev/null >&0 2>&1 \
|| echo ' -F^TZ=')
# ':' on typical hosts; 'ranlib' on the ancient hosts that still need ranlib.
RANLIB= :
# POSIX prohibits defining or using SHELL. However, csh users on systems
# that use the user shell for Makefile commands may need to define SHELL.
#SHELL= /bin/sh
# End of macros that one plausibly might want to tailor.
###############################################################################
TZCOBJS= zic.o
TZDOBJS= zdump.o localtime.o asctime.o strftime.o
DATEOBJS= date.o localtime.o strftime.o asctime.o
LIBSRCS= localtime.c asctime.c difftime.c strftime.c
LIBOBJS= localtime.o asctime.o difftime.o strftime.o
HEADERS= tzfile.h private.h
NONLIBSRCS= zic.c zdump.c
NEWUCBSRCS= date.c
SOURCES= $(HEADERS) $(LIBSRCS) $(NONLIBSRCS) $(NEWUCBSRCS) \
tzselect.ksh workman.sh
MANS= newctime.3 newstrftime.3 newtzset.3 time2posix.3 \
tzfile.5 tzselect.8 zic.8 zdump.8
MANTXTS= newctime.3.txt newstrftime.3.txt newtzset.3.txt \
time2posix.3.txt \
tzfile.5.txt tzselect.8.txt zic.8.txt zdump.8.txt \
date.1.txt
COMMON= calendars CONTRIBUTING LICENSE Makefile \
NEWS README SECURITY theory.html version
WEB_PAGES= tz-art.html tz-how-to.html tz-link.html
CHECK_WEB_PAGES=check_theory.html check_tz-art.html \
check_tz-how-to.html check_tz-link.html
DOCS= $(MANS) date.1 $(MANTXTS) $(WEB_PAGES)
PRIMARY_YDATA= africa antarctica asia australasia \
europe northamerica southamerica
YDATA= $(PRIMARY_YDATA) etcetera
NDATA= factory
TDATA_TO_CHECK= $(YDATA) $(NDATA) backward
TDATA= $(YDATA) $(NDATA) $(BACKWARD)
ZONETABLES= zone.tab zone1970.tab zonenow.tab
TABDATA= iso3166.tab $(TZDATA_TEXT) $(ZONETABLES)
LEAP_DEPS= leapseconds.awk leap-seconds.list
TZDATA_ZI_DEPS= ziguard.awk zishrink.awk version $(TDATA) \
$(PACKRATDATA) $(PACKRATLIST)
DSTDATA_ZI_DEPS= ziguard.awk $(TDATA) $(PACKRATDATA) $(PACKRATLIST)
DATA= $(TDATA_TO_CHECK) backzone iso3166.tab leap-seconds.list \
leapseconds $(ZONETABLES)
AWK_SCRIPTS= checklinks.awk checknow.awk checktab.awk leapseconds.awk \
ziguard.awk zishrink.awk
MISC= $(AWK_SCRIPTS)
TZS_YEAR= 2050
TZS_CUTOFF_FLAG= -c $(TZS_YEAR)
TZS= to$(TZS_YEAR).tzs
TZS_NEW= to$(TZS_YEAR)new.tzs
TZS_DEPS= $(YDATA) asctime.c localtime.c \
private.h tzfile.h zdump.c zic.c
TZDATA_DIST = $(COMMON) $(DATA) $(MISC)
# EIGHT_YARDS is just a yard short of the whole ENCHILADA.
EIGHT_YARDS = $(TZDATA_DIST) $(DOCS) $(SOURCES) tzdata.zi
ENCHILADA = $(EIGHT_YARDS) $(TZS)
# Consult these files when deciding whether to rebuild the 'version' file.
# This list is not the same as the output of 'git ls-files', since
# .gitignore is not distributed.
VERSION_DEPS= \
calendars CONTRIBUTING LICENSE Makefile NEWS README SECURITY \
africa antarctica asctime.c asia australasia \
backward backzone \
checklinks.awk checknow.awk checktab.awk \
date.1 date.c difftime.c \
etcetera europe factory iso3166.tab \
leap-seconds.list leapseconds.awk localtime.c \
newctime.3 newstrftime.3 newtzset.3 northamerica \
private.h southamerica strftime.c theory.html \
time2posix.3 tz-art.html tz-how-to.html tz-link.html \
tzfile.5 tzfile.h tzselect.8 tzselect.ksh \
workman.sh zdump.8 zdump.c zic.8 zic.c \
ziguard.awk zishrink.awk \
zone.tab zone1970.tab zonenow.tab
all: tzselect zic zdump libtz.a $(TABDATA) \
vanguard.zi main.zi rearguard.zi
ALL: all date $(ENCHILADA)
install: all $(DATA) $(REDO) $(MANS)
mkdir -p '$(DESTDIR)$(BINDIR)' \
'$(DESTDIR)$(ZDUMPDIR)' '$(DESTDIR)$(ZICDIR)' \
'$(DESTDIR)$(LIBDIR)' \
'$(DESTDIR)$(MANDIR)/man3' '$(DESTDIR)$(MANDIR)/man5' \
'$(DESTDIR)$(MANDIR)/man8'
$(ZIC_INSTALL) -l $(LOCALTIME) \
`case '$(POSIXRULES)' in ?*) echo '-p';; esac \
` $(POSIXRULES) \
-t '$(DESTDIR)$(TZDEFAULT)'
cp -f $(TABDATA) '$(DESTDIR)$(TZDIR)/.'
cp tzselect '$(DESTDIR)$(BINDIR)/.'
cp zdump '$(DESTDIR)$(ZDUMPDIR)/.'
cp zic '$(DESTDIR)$(ZICDIR)/.'
cp libtz.a '$(DESTDIR)$(LIBDIR)/.'
$(RANLIB) '$(DESTDIR)$(LIBDIR)/libtz.a'
cp -f newctime.3 newtzset.3 '$(DESTDIR)$(MANDIR)/man3/.'
cp -f tzfile.5 '$(DESTDIR)$(MANDIR)/man5/.'
cp -f tzselect.8 zdump.8 zic.8 '$(DESTDIR)$(MANDIR)/man8/.'
INSTALL: ALL install date.1
mkdir -p '$(DESTDIR)$(BINDIR)' '$(DESTDIR)$(MANDIR)/man1'
cp date '$(DESTDIR)$(BINDIR)/.'
cp -f date.1 '$(DESTDIR)$(MANDIR)/man1/.'
# Calculate version number from git, if available.
# Otherwise, use $(VERSION) unless it is "unknown" and there is already
# a 'version' file, in which case reuse the existing 'version' contents
# and append "-dirty" if the contents do not already end in "-dirty".
version: $(VERSION_DEPS)
{ (type git) >/dev/null 2>&1 && \
V=`git describe --match '[0-9][0-9][0-9][0-9][a-z]*' \
--abbrev=7 --dirty` || \
if test '$(VERSION)' = unknown && V=`cat $@`; then \
case $$V in *-dirty);; *) V=$$V-dirty;; esac; \
else \
V='$(VERSION)'; \
fi; } && \
printf '%s\n' "$$V" >$@.out
mv $@.out $@
# These files can be tailored by setting BACKWARD, PACKRATDATA, PACKRATLIST.
vanguard.zi main.zi rearguard.zi: $(DSTDATA_ZI_DEPS)
$(AWK) \
-v DATAFORM=`expr $@ : '\(.*\).zi'` \
-v PACKRATDATA='$(PACKRATDATA)' \
-v PACKRATLIST='$(PACKRATLIST)' \
-f ziguard.awk \
$(TDATA) $(PACKRATDATA) >$@.out
mv $@.out $@
# This file has a version comment that attempts to capture any tailoring
# via BACKWARD, DATAFORM, PACKRATDATA, PACKRATLIST, and REDO.
tzdata.zi: $(DATAFORM).zi version zishrink.awk
version=`sed 1q version` && \
LC_ALL=C $(AWK) \
-v dataform='$(DATAFORM)' \
-v deps='$(DSTDATA_ZI_DEPS) zishrink.awk' \
-v redo='$(REDO)' \
-v version="$$version" \
-f zishrink.awk \
$(DATAFORM).zi >$@.out
mv $@.out $@
tzdir.h:
printf '%s\n' >$@.out \
'#ifndef TZDEFAULT' \
'# define TZDEFAULT "$(TZDEFAULT)" /* default zone */' \
'#endif' \
'#ifndef TZDIR' \
'# define TZDIR "$(TZDIR)" /* TZif directory */' \
'#endif'
mv $@.out $@
version.h: version
VERSION=`cat version` && printf '%s\n' \
'static char const PKGVERSION[]="($(PACKAGE)) ";' \
"static char const TZVERSION[]=\"$$VERSION\";" \
'static char const REPORT_BUGS_TO[]="$(BUGEMAIL)";' \
>$@.out
mv $@.out $@
zdump: $(TZDOBJS)
$(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZDOBJS) $(LDLIBS)
zic: $(TZCOBJS)
$(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZCOBJS) $(LDLIBS)
leapseconds: $(LEAP_DEPS)
$(AWK) -v EXPIRES_LINE=$(EXPIRES_LINE) \
-f leapseconds.awk leap-seconds.list >$@.out
mv $@.out $@
# Awk script to extract a Git-style author from leap-seconds.list comments.
EXTRACT_AUTHOR = \
author_line { sub(/^.[[:space:]]*/, ""); \
sub(/:[[:space:]]*/, " <"); \
printf "%s>\n", $$0; \
success = 1; \
exit \
} \
/Questions or comments to:/ { author_line = 1 } \
END { exit !success }
# Fetch leap-seconds.list from upstream.
fetch-leap-seconds.list:
$(CURL) -OR $(leaplist_URI)
# Fetch leap-seconds.list from upstream and commit it to the local repository.
commit-leap-seconds.list: fetch-leap-seconds.list
author=$$($(AWK) '$(EXTRACT_AUTHOR)' leap-seconds.list) && \
date=$$(TZ=$(leaplist_TZ) stat -c%y leap-seconds.list) && \
git commit --author="$$author" --date="$$date" -m'make $@' \
leap-seconds.list
# Arguments to pass to submakes of install_data.
# They can be overridden by later submake arguments.
INSTALLARGS = \
BACKWARD='$(BACKWARD)' \
DESTDIR='$(DESTDIR)' \
LEAPSECONDS='$(LEAPSECONDS)' \
PACKRATDATA='$(PACKRATDATA)' \
PACKRATLIST='$(PACKRATLIST)' \
TZDEFAULT='$(TZDEFAULT)' \
TZDIR='$(TZDIR)' \
ZIC='$(ZIC)'
INSTALL_DATA_DEPS = zic leapseconds tzdata.zi
# 'make install_data' installs one set of TZif files.
install_data: $(INSTALL_DATA_DEPS)
$(ZIC_INSTALL) tzdata.zi
posix_only: $(INSTALL_DATA_DEPS)
$(MAKE) $(INSTALLARGS) LEAPSECONDS= install_data
right_only: $(INSTALL_DATA_DEPS)
$(MAKE) $(INSTALLARGS) LEAPSECONDS='-L leapseconds' \
install_data
# In earlier versions of this makefile, the other two directories were
# subdirectories of $(TZDIR). However, this led to configuration errors.
# For example, with posix_right under the earlier scheme,
# TZ='right/Australia/Adelaide' got you localtime with leap seconds,
# but gmtime without leap seconds, which led to problems with applications
# like sendmail that subtract gmtime from localtime.
# Therefore, the other two directories are now siblings of $(TZDIR).
# You must replace all of $(TZDIR) to switch from not using leap seconds
# to using them, or vice versa.
right_posix: right_only
rm -fr '$(DESTDIR)$(TZDIR)-leaps'
ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-leaps' || \
$(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only
$(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only
posix_right: posix_only
rm -fr '$(DESTDIR)$(TZDIR)-posix'
ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-posix' || \
$(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only
$(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only
zones: $(REDO)
# dummy.zd is not a real file; it is mentioned here only so that the
# top-level 'make' does not have a syntax error.
ZDS = dummy.zd
# Rule used only by submakes invoked by the $(TZS_NEW) rule.
# It is separate so that GNU 'make -j' can run instances in parallel.
$(ZDS): zdump
./zdump -i $(TZS_CUTOFF_FLAG) '$(wd)/'$$(expr $@ : '\(.*\).zd') \
>$@
TZS_NEW_DEPS = tzdata.zi zdump zic
$(TZS_NEW): $(TZS_NEW_DEPS)
rm -fr tzs$(TZS_YEAR).dir
mkdir tzs$(TZS_YEAR).dir
$(zic) -d tzs$(TZS_YEAR).dir tzdata.zi
$(AWK) '/^L/{print "Link\t" $$2 "\t" $$3}' \
tzdata.zi | LC_ALL=C sort >$@.out
wd=`pwd` && \
x=`$(AWK) '/^Z/{print "tzs$(TZS_YEAR).dir/" $$2 ".zd"}' \
tzdata.zi \
| LC_ALL=C sort -t . -k 2,2` && \
set x $$x && \
shift && \
ZDS=$$* && \
$(MAKE) wd="$$wd" TZS_CUTOFF_FLAG="$(TZS_CUTOFF_FLAG)" \
ZDS="$$ZDS" $$ZDS && \
sed 's,^TZ=".*\.dir/,TZ=",' $$ZDS >>$@.out
rm -fr tzs$(TZS_YEAR).dir
mv $@.out $@
# If $(TZS) exists but 'make check_tzs' fails, a maintainer should inspect the
# failed output and fix the inconsistency, perhaps by running 'make force_tzs'.
$(TZS):
touch $@
force_tzs: $(TZS_NEW)
cp $(TZS_NEW) $(TZS)
libtz.a: $(LIBOBJS)
rm -f $@
$(AR) $(ARFLAGS) $@ $(LIBOBJS)
$(RANLIB) $@
date: $(DATEOBJS)
$(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(DATEOBJS) $(LDLIBS)
tzselect: tzselect.ksh version
VERSION=`cat version` && sed \
-e "s'#!/bin/bash'#!"'$(KSHELL)'\' \
-e s\''\(AWK\)=[^}]*'\''\1=\'\''$(AWK)\'\'\' \
-e s\''\(PKGVERSION\)=.*'\''\1=\'\''($(PACKAGE)) \'\'\' \
-e s\''\(REPORT_BUGS_TO\)=.*'\''\1=\'\''$(BUGEMAIL)\'\'\' \
-e s\''\(TZDIR\)=[^}]*'\''\1=\'\''$(TZDIR)\'\'\' \
-e s\''\(TZVERSION\)=.*'\''\1=\'"'$$VERSION\\''" \
<$@.ksh >$@.out
chmod +x $@.out
mv $@.out $@
check: check_back check_mild
check_mild: check_character_set check_white_space check_links \
check_name_lengths check_now \
check_slashed_abbrs check_sorted \
check_tables check_web check_ziguard check_zishrink check_tzs
# True if UTF8_LOCALE does not work;
# otherwise, false but with LC_ALL set to $(UTF8_LOCALE).
UTF8_LOCALE_MISSING = \
{ test ! '$(UTF8_LOCALE)' \
|| ! printf 'A\304\200B\n' \
| LC_ALL='$(UTF8_LOCALE)' grep -q '^A.B$$' >/dev/null 2>&1 \
|| { LC_ALL='$(UTF8_LOCALE)'; export LC_ALL; false; }; }
check_character_set: $(ENCHILADA)
$(UTF8_LOCALE_MISSING) || { \
sharp='#' && \
! grep -Env $(SAFE_LINE) $(MANS) date.1 $(MANTXTS) \
$(MISC) $(SOURCES) $(WEB_PAGES) \
CONTRIBUTING LICENSE README SECURITY \
version tzdata.zi && \
! grep -Env $(SAFE_LINE)'|^UNUSUAL_OK_'$(OK_CHAR)'*$$' \
Makefile && \
! grep -Env $(SAFE_SHARP_LINE) $(TDATA_TO_CHECK) backzone \
leapseconds zone.tab && \
! grep -Env $(OK_LINE) $(ENCHILADA); \
}
touch $@
check_white_space: $(ENCHILADA)
$(UTF8_LOCALE_MISSING) || { \
patfmt=' \t|[\f\r\v]' && pat=`printf "$$patfmt\\n"` && \
! grep -En "$$pat|[$s]\$$" \
$$(ls $(ENCHILADA) | grep -Fvx leap-seconds.list); \
}
touch $@
PRECEDES_FILE_NAME = ^(Zone|Link[$s]+[^$s]+)[$s]+
FILE_NAME_COMPONENT_TOO_LONG = $(PRECEDES_FILE_NAME)[^$s]*[^/$s]{15}
check_name_lengths: $(TDATA_TO_CHECK) backzone
! grep -En '$(FILE_NAME_COMPONENT_TOO_LONG)' \
$(TDATA_TO_CHECK) backzone
touch $@
PRECEDES_STDOFF = ^(Zone[$s]+[^$s]+)?[$s]+
STDOFF = [-+]?[0-9:.]+
RULELESS_SAVE = (-|$(STDOFF)[sd]?)
RULELESS_SLASHED_ABBRS = \
$(PRECEDES_STDOFF)$(STDOFF)[$s]+$(RULELESS_SAVE)[$s]+[^$s]*/
check_slashed_abbrs: $(TDATA_TO_CHECK)
! grep -En '$(RULELESS_SLASHED_ABBRS)' $(TDATA_TO_CHECK)
touch $@
CHECK_CC_LIST = { n = split($$1,a,/,/); for (i=2; i<=n; i++) print a[1], a[i]; }
check_sorted: backward backzone
$(AWK) '/^Link/ {printf "%.5d %s\n", g, $$3} !/./ {g++}' \
backward | LC_ALL=C sort -cu
$(AWK) '/^Zone/ {print $$2}' backzone | LC_ALL=C sort -cu
touch $@
check_back: checklinks.awk $(TDATA_TO_CHECK)
$(AWK) \
-v DATAFORM=$(DATAFORM) \
-v backcheck=backward \
-f checklinks.awk $(TDATA_TO_CHECK)
touch $@
check_links: checklinks.awk tzdata.zi
$(AWK) \
-v DATAFORM=$(DATAFORM) \
-f checklinks.awk tzdata.zi
touch $@
# Check timestamps from now through 28 years from now, to make sure
# that zonenow.tab contains all sequences of planned timestamps,
# without any duplicate sequences. In theory this might require
# 2800 years but that would take a long time to check.
CHECK_NOW_TIMESTAMP = `./date +%s`
CHECK_NOW_FUTURE_YEARS = 28
CHECK_NOW_FUTURE_SECS = $(CHECK_NOW_FUTURE_YEARS) '*' 366 '*' 24 '*' 60 '*' 60
check_now: checknow.awk date tzdata.zi zdump zic zone1970.tab zonenow.tab
rm -fr $@.dir
mkdir $@.dir
./zic -d $@.dir tzdata.zi
now=$(CHECK_NOW_TIMESTAMP) && \
future=`expr $(CHECK_NOW_FUTURE_SECS) + $$now` && \
./zdump -i -t $$now,$$future \
$$(find $$PWD/$@.dir/????*/ -type f) \
>$@.dir/zdump.tab
$(AWK) \
-v zdump_table=$@.dir/zdump.tab \
-f checknow.awk zonenow.tab
rm -fr $@.dir
touch $@
check_tables: checktab.awk $(YDATA) backward zone.tab zone1970.tab
for tab in $(ZONETABLES); do \
test "$$tab" = zone.tab && links='$(BACKWARD)' || links=''; \
$(AWK) -f checktab.awk -v zone_table=$$tab $(YDATA) $$links \
|| exit; \
done
touch $@
check_tzs: $(TZS) $(TZS_NEW)
if test -s $(TZS); then \
$(DIFF_TZS) $(TZS) $(TZS_NEW); \
else \
cp $(TZS_NEW) $(TZS); \
fi
touch $@
check_web: $(CHECK_WEB_PAGES)
check_theory.html: theory.html
check_tz-art.html: tz-art.html
check_tz-how-to.html: tz-how-to.html
check_tz-link.html: tz-link.html
check_theory.html check_tz-art.html check_tz-how-to.html check_tz-link.html:
$(CURL) -sS --url https://validator.w3.org/nu/ -F out=gnu \
-F file=@$$(expr $@ : 'check_\(.*\)') -o $@.out && \
test ! -s $@.out || { cat $@.out; exit 1; }
mv $@.out $@
check_ziguard: rearguard.zi vanguard.zi ziguard.awk
$(AWK) -v DATAFORM=rearguard -f ziguard.awk vanguard.zi | \
diff -u rearguard.zi -
$(AWK) -v DATAFORM=vanguard -f ziguard.awk rearguard.zi | \
diff -u vanguard.zi -
touch $@
# Check that zishrink.awk does not alter the data, and that ziguard.awk
# preserves main-format data.
check_zishrink: check_zishrink_posix check_zishrink_right
check_zishrink_posix check_zishrink_right: \
zic leapseconds $(PACKRATDATA) $(PACKRATLIST) \
$(TDATA) $(DATAFORM).zi tzdata.zi
rm -fr $@.dir $@-t.dir $@-shrunk.dir
mkdir $@.dir $@-t.dir $@-shrunk.dir
case $@ in \
*_right) leap='-L leapseconds';; \
*) leap=;; \
esac && \
$(ZIC) $$leap -d $@.dir $(DATAFORM).zi && \
$(ZIC) $$leap -d $@-shrunk.dir tzdata.zi && \
case $(DATAFORM),$(PACKRATLIST) in \
main,) \
$(ZIC) $$leap -d $@-t.dir $(TDATA) && \
$(AWK) '/^Rule/' $(TDATA) | \
$(ZIC) $$leap -d $@-t.dir - $(PACKRATDATA) && \
diff -r $@.dir $@-t.dir;; \
esac
diff -r $@.dir $@-shrunk.dir
rm -fr $@.dir $@-t.dir $@-shrunk.dir
touch $@
clean_misc:
rm -fr check_*.dir typecheck_*.dir
rm -f *.o *.out $(TIME_T_ALTERNATIVES) \
check_* core typecheck_* \
date tzdir.h tzselect version.h zdump zic libtz.a
clean: clean_misc
rm -fr *.dir tzdb-*/
rm -f *.zi $(TZS_NEW)
maintainer-clean: clean
@echo 'This command is intended for maintainers to use; it'
@echo 'deletes files that may need special tools to rebuild.'
rm -f leapseconds version $(MANTXTS) $(TZS) *.asc *.tar.*
names:
@echo $(ENCHILADA)
public: check check_public $(CHECK_TIME_T_ALTERNATIVES) \
tarballs signatures
date.1.txt: date.1
newctime.3.txt: newctime.3
newstrftime.3.txt: newstrftime.3
newtzset.3.txt: newtzset.3
time2posix.3.txt: time2posix.3
tzfile.5.txt: tzfile.5
tzselect.8.txt: tzselect.8
zdump.8.txt: zdump.8
zic.8.txt: zic.8
$(MANTXTS): workman.sh
LC_ALL=C sh workman.sh `expr $@ : '\(.*\)\.txt$$'` >$@.out
mv $@.out $@
# Set file timestamps deterministically if possible,
# so that tarballs containing the timestamps are reproducible.
#
# '$(SET_TIMESTAMP_N) N DEST A B C ...' sets the timestamp of the
# file DEST to the maximum of the timestamps of the files A B C ...,
# plus N if GNU ls and touch are available.
SET_TIMESTAMP_N = sh -c '\
n=$$0 dest=$$1; shift; \
<"$$dest" && \
if test $$n != 0 && \
lsout=`ls -nt --time-style="+%s" "$$@" 2>/dev/null`; then \
set x $$lsout && \
timestamp=`expr $$7 + $$n` && \
echo "+ touch -md @$$timestamp $$dest" && \
touch -md @$$timestamp "$$dest"; \
else \
newest=`ls -t "$$@" | sed 1q` && \
echo "+ touch -mr $$newest $$dest" && \
touch -mr "$$newest" "$$dest"; \
fi'
# If DEST depends on A B C ... in this Makefile, callers should use
# $(SET_TIMESTAMP_DEP) DEST A B C ..., for the benefit of any
# downstream 'make' that considers equal timestamps to be out of date.
# POSIX allows this 'make' behavior, and HP-UX 'make' does it.
# If all that matters is that the timestamp be reproducible
# and plausible, use $(SET_TIMESTAMP).
SET_TIMESTAMP = $(SET_TIMESTAMP_N) 0
SET_TIMESTAMP_DEP = $(SET_TIMESTAMP_N) 1
# Set the timestamps to those of the git repository, if available,
# and if the files have not changed since then.
# This uses GNU 'ls --time-style=+%s', which outputs the seconds count,
# and GNU 'touch -d@N FILE', where N is the number of seconds since 1970.
# If git or GNU is absent, don't bother to sync with git timestamps.
# Also, set the timestamp of each prebuilt file like 'leapseconds'
# to be the maximum of the files it depends on.
set-timestamps.out: $(EIGHT_YARDS)
rm -f $@
if (type git) >/dev/null 2>&1 && \
files=`git ls-files $(EIGHT_YARDS)` && \
touch -md @1 test.out; then \
rm -f test.out && \
for file in $$files; do \
if git diff --quiet $$file; then \
time=`TZ=UTC0 git log -1 \
--format='tformat:%cd' \
--date='format:%Y-%m-%dT%H:%M:%SZ' \
$$file` && \
echo "+ touch -md $$time $$file" && \
touch -md $$time $$file; \
else \
echo >&2 "$$file: warning: does not match repository"; \
fi || exit; \
done; \
fi
$(SET_TIMESTAMP_DEP) leapseconds $(LEAP_DEPS)
for file in `ls $(MANTXTS) | sed 's/\.txt$$//'`; do \
$(SET_TIMESTAMP_DEP) $$file.txt $$file workman.sh || \
exit; \
done
$(SET_TIMESTAMP_DEP) version $(VERSION_DEPS)
$(SET_TIMESTAMP_DEP) tzdata.zi $(TZDATA_ZI_DEPS)
touch $@
set-tzs-timestamp.out: $(TZS)
$(SET_TIMESTAMP_DEP) $(TZS) $(TZS_DEPS)
touch $@
# The zics below ensure that each data file can stand on its own.
# We also do an all-files run to catch links to links.
check_public: $(VERSION_DEPS)
rm -fr public.dir
mkdir public.dir
ln $(VERSION_DEPS) public.dir
cd public.dir \
&& $(MAKE) CFLAGS='$(GCC_DEBUG_FLAGS)' TZDIR='$(TZDIR)' ALL
for i in $(TDATA_TO_CHECK) public.dir/tzdata.zi \
public.dir/vanguard.zi public.dir/main.zi \
public.dir/rearguard.zi; \
do \
public.dir/zic -v -d public.dir/zoneinfo $$i 2>&1 || exit; \
done
public.dir/zic -v -d public.dir/zoneinfo-all $(TDATA_TO_CHECK)
:
: Also check 'backzone' syntax.
rm public.dir/main.zi
cd public.dir && $(MAKE) PACKRATDATA=backzone main.zi
public.dir/zic -d public.dir/zoneinfo main.zi
rm public.dir/main.zi
cd public.dir && \
$(MAKE) PACKRATDATA=backzone PACKRATLIST=zone.tab main.zi
public.dir/zic -d public.dir/zoneinfo main.zi
:
rm -fr public.dir
touch $@
# Check that the code works under various alternative
# implementations of time_t.
check_time_t_alternatives: $(TIME_T_ALTERNATIVES)
$(TIME_T_ALTERNATIVES_TAIL): $(TIME_T_ALTERNATIVES_HEAD)
$(TIME_T_ALTERNATIVES): $(VERSION_DEPS)
rm -fr $@.dir
mkdir $@.dir
ln $(VERSION_DEPS) $@.dir
case $@ in \
int*32_t) range=-2147483648,2147483648;; \
u*) range=0,4294967296;; \
*) range=-4294967296,4294967296;; \
esac && \
wd=`pwd` && \
zones=`$(AWK) '/^[^#]/ { print $$3 }' <zone1970.tab` && \
if test $@ = $(TIME_T_ALTERNATIVES_HEAD); then \
range_target=; \
else \
range_target=to$$range.tzs; \
fi && \
(cd $@.dir && \
$(MAKE) TOPDIR="$$wd/$@.dir" \
CFLAGS='$(CFLAGS) -Dtime_tz='"'$@'" \
REDO='$(REDO)' \
D=$$wd/$@.dir \
TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \
install $$range_target) && \
test $@ = $(TIME_T_ALTERNATIVES_HEAD) || { \
(cd $(TIME_T_ALTERNATIVES_HEAD).dir && \
$(MAKE) TOPDIR="$$wd/$@.dir" \
TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \
D=$$wd/$@.dir \
to$$range.tzs) && \
$(DIFF_TZS) $(TIME_T_ALTERNATIVES_HEAD).dir/to$$range.tzs \
$@.dir/to$$range.tzs && \
if diff -q Makefile Makefile 2>/dev/null; then \
quiet_option='-q'; \
else \
quiet_option=''; \
fi && \
diff $$quiet_option -r $(TIME_T_ALTERNATIVES_HEAD).dir/etc \
$@.dir/etc && \
diff $$quiet_option -r \
$(TIME_T_ALTERNATIVES_HEAD).dir/usr/share \
$@.dir/usr/share; \
}
touch $@
TRADITIONAL_ASC = \
tzcode$(VERSION).tar.gz.asc \
tzdata$(VERSION).tar.gz.asc
REARGUARD_ASC = \
tzdata$(VERSION)-rearguard.tar.gz.asc
ALL_ASC = $(TRADITIONAL_ASC) $(REARGUARD_ASC) \
tzdb-$(VERSION).tar.lz.asc
tarballs rearguard_tarballs tailored_tarballs traditional_tarballs \
signatures rearguard_signatures traditional_signatures: \
version set-timestamps.out rearguard.zi vanguard.zi
VERSION=`cat version` && \
$(MAKE) AWK='$(AWK)' VERSION="$$VERSION" $@_version
# These *_version rules are intended for use if VERSION is set by some
# other means. Ordinarily these rules are used only by the above
# non-_version rules, which set VERSION on the 'make' command line.
tarballs_version: traditional_tarballs_version rearguard_tarballs_version \
tzdb-$(VERSION).tar.lz
rearguard_tarballs_version: \
tzdata$(VERSION)-rearguard.tar.gz
traditional_tarballs_version: \
tzcode$(VERSION).tar.gz tzdata$(VERSION).tar.gz
tailored_tarballs_version: \
tzdata$(VERSION)-tailored.tar.gz
signatures_version: $(ALL_ASC)
rearguard_signatures_version: $(REARGUARD_ASC)
traditional_signatures_version: $(TRADITIONAL_ASC)
tzcode$(VERSION).tar.gz: set-timestamps.out
LC_ALL=C && export LC_ALL && \
tar $(TARFLAGS) -cf - \
$(COMMON) $(DOCS) $(SOURCES) | \
gzip $(GZIPFLAGS) >$@.out
mv $@.out $@
tzdata$(VERSION).tar.gz: set-timestamps.out
LC_ALL=C && export LC_ALL && \
tar $(TARFLAGS) -cf - $(TZDATA_DIST) | \
gzip $(GZIPFLAGS) >$@.out
mv $@.out $@
# Create empty files with a reproducible timestamp.
CREATE_EMPTY = TZ=UTC0 touch -mt 202010122253.00
# The obsolescent *rearguard* targets and related macros are present
# for backwards compatibility with tz releases 2018e through 2022a.
# They should go away eventually. To build rearguard tarballs you
# can instead use 'make DATAFORM=rearguard tailored_tarballs'.
tzdata$(VERSION)-rearguard.tar.gz: rearguard.zi set-timestamps.out
rm -fr $@.dir
mkdir $@.dir
ln $(TZDATA_DIST) $@.dir
cd $@.dir && rm -f $(TDATA) $(PACKRATDATA) version
for f in $(TDATA) $(PACKRATDATA); do \
rearf=$@.dir/$$f; \
$(AWK) -v DATAFORM=rearguard -f ziguard.awk $$f >$$rearf && \
$(SET_TIMESTAMP_DEP) $$rearf ziguard.awk $$f || exit; \
done
sed '1s/$$/-rearguard/' <version >$@.dir/version
: The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier.
$(CREATE_EMPTY) $@.dir/pacificnew
touch -mr version $@.dir/version
LC_ALL=C && export LC_ALL && \
(cd $@.dir && \
tar $(TARFLAGS) -cf - \
$(TZDATA_DIST) pacificnew | \
gzip $(GZIPFLAGS)) >$@.out
mv $@.out $@
# Create a tailored tarball suitable for TZUpdater and compatible tools.
# For example, 'make DATAFORM=vanguard tailored_tarballs' makes a tarball
# useful for testing whether TZUpdater supports vanguard form.
# The generated tarball is not byte-for-byte equivalent to a hand-tailored
# traditional tarball, as data entries are put into 'etcetera' even if they
# came from some other source file. However, the effect should be the same
# for ordinary use, which reads all the source files.
tzdata$(VERSION)-tailored.tar.gz: set-timestamps.out
rm -fr $@.dir
mkdir $@.dir
: The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier.
cd $@.dir && \
$(CREATE_EMPTY) $(PRIMARY_YDATA) $(NDATA) backward \
`test $(DATAFORM) = vanguard || echo pacificnew`
(grep '^#' tzdata.zi && echo && cat $(DATAFORM).zi) \
>$@.dir/etcetera
touch -mr tzdata.zi $@.dir/etcetera
sed -n \
-e '/^# *version *\(.*\)/h' \
-e '/^# *ddeps */H' \
-e '$$!d' \
-e 'g' \
-e 's/^# *version *//' \
-e 's/\n# *ddeps */-/' \
-e 's/ /-/g' \
-e 'p' \
<tzdata.zi >$@.dir/version
touch -mr version $@.dir/version
links= && \
for file in $(TZDATA_DIST); do \
test -f $@.dir/$$file || links="$$links $$file"; \
done && \
ln $$links $@.dir
LC_ALL=C && export LC_ALL && \
(cd $@.dir && \
tar $(TARFLAGS) -cf - * | gzip $(GZIPFLAGS)) >$@.out
mv $@.out $@
tzdb-$(VERSION).tar.lz: set-timestamps.out set-tzs-timestamp.out
rm -fr tzdb-$(VERSION)
mkdir tzdb-$(VERSION)
ln $(ENCHILADA) tzdb-$(VERSION)
$(SET_TIMESTAMP) tzdb-$(VERSION) tzdb-$(VERSION)/*
LC_ALL=C && export LC_ALL && \
tar $(TARFLAGS) -cf - tzdb-$(VERSION) | lzip -9 >$@.out
mv $@.out $@
tzcode$(VERSION).tar.gz.asc: tzcode$(VERSION).tar.gz
tzdata$(VERSION).tar.gz.asc: tzdata$(VERSION).tar.gz
tzdata$(VERSION)-rearguard.tar.gz.asc: tzdata$(VERSION)-rearguard.tar.gz
tzdb-$(VERSION).tar.lz.asc: tzdb-$(VERSION).tar.lz
$(ALL_ASC):
$(GPG) --armor --detach-sign $?
TYPECHECK_CFLAGS = $(CFLAGS) -DTYPECHECK -D__time_t_defined -D_TIME_T
typecheck: typecheck_long_long typecheck_unsigned
typecheck_long_long typecheck_unsigned: $(VERSION_DEPS)
rm -fr $@.dir
mkdir $@.dir
ln $(VERSION_DEPS) $@.dir
cd $@.dir && \
case $@ in \
*_long_long) i="long long";; \
*_unsigned ) i="unsigned" ;; \
esac && \
typecheck_cflags='' && \
$(MAKE) \
CFLAGS="$(TYPECHECK_CFLAGS) \"-Dtime_t=$$i\"" \
TOPDIR="`pwd`" \
install
$@.dir/zdump -i -c 1970,1971 Europe/Rome
touch $@
zonenames: tzdata.zi
@$(AWK) '/^Z/ { print $$2 } /^L/ { print $$3 }' tzdata.zi
asctime.o: private.h tzfile.h
date.o: private.h
difftime.o: private.h
localtime.o: private.h tzfile.h tzdir.h
strftime.o: private.h tzfile.h
zdump.o: version.h
zic.o: private.h tzfile.h tzdir.h version.h
.PHONY: ALL INSTALL all
.PHONY: check check_mild check_time_t_alternatives
.PHONY: check_web check_zishrink
.PHONY: clean clean_misc commit-leap-seconds.list dummy.zd
.PHONY: fetch-leap-seconds.list force_tzs
.PHONY: install install_data maintainer-clean names
.PHONY: posix_only posix_right public
.PHONY: rearguard_signatures rearguard_signatures_version
.PHONY: rearguard_tarballs rearguard_tarballs_version
.PHONY: right_only right_posix signatures signatures_version
.PHONY: tarballs tarballs_version
.PHONY: traditional_signatures traditional_signatures_version
.PHONY: traditional_tarballs traditional_tarballs_version
.PHONY: tailored_tarballs tailored_tarballs_version
.PHONY: typecheck
.PHONY: zonenames zones
.PHONY: $(ZDS)
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