# 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 # Any other value for POSIXRULES is obsolete and should not be relied on, as: # * It does not work correctly in popular implementations such as GNU/Linux.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 does not declare asctime_r # -DHAVE_DECL_ENVIRON if declares 'environ' # -DHAVE_DECL_TIMEGM=0 if does not declare timegm # -DHAVE_DIRECT_H if mkdir needs (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 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 nor substitutes like # __builtin_add_overflow work* # -DHAVE_STDINT_H=0 if does not work*+ # -DHAVE_STRFTIME_L if 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 does not work* # -DHAVE_TZSET=0 if your system lacks a tzset function # -DHAVE_UNISTD_H=0 if does not work* # -DHAVE_UTMPX_H=0 if 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 , used for HTML validation # and to fetch leap-seconds.list from upstream. CURL= curl # Name of GNU Privacy Guard , 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 $$3 }' /dev/null; then \ quiet_option='-q'; \ else \ quiet_option=''; \ fi && \ diff $$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/' $@.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 '$$!d' \ -e 'g' \ -e 's/^# *version *//' \ -e 's/\n# *ddeps */-/' \ -e 's/ /-/g' \ -e 'p' \ $@.dir/version touch -mr version $@.dir/version links= && \ for file in $(TZDATA_DIST); do \ test -f $@.dir/$$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)