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Makefile revision 1.43
      1 # Make and install tzdb code and data.
      2 
      3 # This file is in the public domain, so clarified as of
      4 # 2009-05-17 by Arthur David Olson.
      5 
      6 # Package name for the code distribution.
      7 PACKAGE=	tzcode
      8 
      9 # Version number for the distribution, overridden in the 'tarballs' rule below.
     10 VERSION=	unknown
     11 
     12 # Email address for bug reports.
     13 BUGEMAIL=	tz@iana.org
     14 
     15 # DATAFORM selects the data format.
     16 # Available formats represent essentially the same data, albeit
     17 # possibly with minor discrepancies that users are not likely to notice.
     18 # To get new features and the best data right away, use:
     19 #	DATAFORM=	vanguard
     20 # To wait a while before using new features, to give downstream users
     21 # time to upgrade zic (the default), use:
     22 #	DATAFORM=	main
     23 # To wait even longer for new features, use:
     24 #	DATAFORM=	rearguard
     25 DATAFORM=		main
     26 
     27 # Change the line below for your timezone (after finding the one you want in
     28 # one of the $(TDATA) source files, or adding it to a source file).
     29 # Alternatively, if you discover you've got the wrong timezone, you can just
     30 #	zic -l rightzone
     31 # to correct things.
     32 # Use the command
     33 #	make zonenames
     34 # to get a list of the values you can use for LOCALTIME.
     35 
     36 LOCALTIME=	GMT
     37 
     38 # If you want something other than Eastern United States time as a template
     39 # for handling ruleless POSIX-style timezone environment variables,
     40 # change the line below (after finding the timezone you want in the
     41 # one of the $(TDATA) source files, or adding it to a source file).
     42 # A ruleless environment setting like TZ='CST6CDT' uses the rules in the
     43 # template file to determine "spring forward" and "fall back" days and
     44 # times; the environment variable itself specifies UT offsets of standard and
     45 # daylight saving time.
     46 # Alternatively, if you discover you've got the wrong timezone, you can just
     47 #	zic -p rightzone
     48 # to correct things.
     49 # Use the command
     50 #	make zonenames
     51 # to get a list of the values you can use for POSIXRULES.
     52 
     53 POSIXRULES=	America/New_York
     54 
     55 # Also see TZDEFRULESTRING below, which takes effect only
     56 # if the time zone files cannot be accessed.
     57 
     58 
     59 # Installation locations.
     60 #
     61 # The defaults are suitable for Debian, except that if REDO is
     62 # posix_right or right_posix then files that Debian puts under
     63 # /usr/share/zoneinfo/posix and /usr/share/zoneinfo/right are instead
     64 # put under /usr/share/zoneinfo-posix and /usr/share/zoneinfo-leaps,
     65 # respectively.  Problems with the Debian approach are discussed in
     66 # the commentary for the right_posix rule (below).
     67 
     68 # Destination directory, which can be used for staging.
     69 # 'make DESTDIR=/stage install' installs under /stage (e.g., to
     70 # /stage/etc/localtime instead of to /etc/localtime).  Files under
     71 # /stage are not intended to work as-is, but can be copied by hand to
     72 # the root directory later.  If DESTDIR is empty, 'make install' does
     73 # not stage, but installs directly into production locations.
     74 DESTDIR =
     75 
     76 # Everything is installed into subdirectories of TOPDIR, and used there.
     77 # TOPDIR should be empty (meaning the root directory),
     78 # or a directory name that does not end in "/".
     79 # TOPDIR should be empty or an absolute name unless you're just testing.
     80 TOPDIR =
     81 
     82 # The default local timezone is taken from the file TZDEFAULT.
     83 TZDEFAULT = $(TOPDIR)/etc/localtime
     84 
     85 # The subdirectory containing installed program and data files, and
     86 # likewise for installed files that can be shared among architectures.
     87 # These should be relative file names.
     88 USRDIR = usr
     89 USRSHAREDIR = $(USRDIR)/share
     90 
     91 # "Compiled" timezone information is placed in the "TZDIR" directory
     92 # (and subdirectories).
     93 # TZDIR_BASENAME should not contain "/" and should not be ".", ".." or empty.
     94 TZDIR_BASENAME=	zoneinfo
     95 TZDIR = $(TOPDIR)/$(USRSHAREDIR)/$(TZDIR_BASENAME)
     96 
     97 # The "tzselect" and (if you do "make INSTALL") "date" commands go in:
     98 BINDIR = $(TOPDIR)/$(USRDIR)/bin
     99 
    100 # The "zdump" command goes in:
    101 ZDUMPDIR = $(BINDIR)
    102 
    103 # The "zic" command goes in:
    104 ZICDIR = $(TOPDIR)/$(USRDIR)/sbin
    105 
    106 # Manual pages go in subdirectories of. . .
    107 MANDIR = $(TOPDIR)/$(USRSHAREDIR)/man
    108 
    109 # Library functions are put in an archive in LIBDIR.
    110 LIBDIR = $(TOPDIR)/$(USRDIR)/lib
    111 
    112 
    113 # Types to try, as an alternative to time_t.
    114 TIME_T_ALTERNATIVES = $(TIME_T_ALTERNATIVES_HEAD) $(TIME_T_ALTERNATIVES_TAIL)
    115 TIME_T_ALTERNATIVES_HEAD = int64_t
    116 TIME_T_ALTERNATIVES_TAIL = int32_t uint32_t uint64_t
    117 
    118 # What kind of TZif data files to generate.  (TZif is the binary time
    119 # zone data format that zic generates; see Internet RFC 8536.)
    120 # If you want only POSIX time, with time values interpreted as
    121 # seconds since the epoch (not counting leap seconds), use
    122 #	REDO=		posix_only
    123 # below.  If you want only "right" time, with values interpreted
    124 # as seconds since the epoch (counting leap seconds), use
    125 #	REDO=		right_only
    126 # below.  If you want both sets of data available, with leap seconds not
    127 # counted normally, use
    128 #	REDO=		posix_right
    129 # below.  If you want both sets of data available, with leap seconds counted
    130 # normally, use
    131 #	REDO=		right_posix
    132 # below.  POSIX mandates that leap seconds not be counted; for compatibility
    133 # with it, use "posix_only" or "posix_right".  Use POSIX time on systems with
    134 # leap smearing; this can work better than unsmeared "right" time with
    135 # applications that are not leap second aware, and is closer to unsmeared
    136 # "right" time than unsmeared POSIX time is (e.g., 0.5 vs 1.0 s max error).
    137 
    138 REDO=		posix_right
    139 
    140 # To install data in text form that has all the information of the TZif data,
    141 # (optionally incorporating leap second information), use
    142 #	TZDATA_TEXT=	tzdata.zi leapseconds
    143 # To install text data without leap second information (e.g., because
    144 # REDO='posix_only'), use
    145 #	TZDATA_TEXT=	tzdata.zi
    146 # To avoid installing text data, use
    147 #	TZDATA_TEXT=
    148 
    149 TZDATA_TEXT=	leapseconds tzdata.zi
    150 
    151 # For backward-compatibility links for old zone names, use
    152 #	BACKWARD=	backward
    153 # If you also want the link US/Pacific-New, even though it is confusing
    154 # and is planned to be removed from the database eventually, use
    155 #	BACKWARD=	backward pacificnew
    156 # To omit these links, use
    157 #	BACKWARD=
    158 
    159 BACKWARD=	backward
    160 
    161 # If you want out-of-scope and often-wrong data from the file 'backzone', use
    162 #	PACKRATDATA=	backzone
    163 # To omit this data, use
    164 #	PACKRATDATA=
    165 
    166 PACKRATDATA=
    167 
    168 # The name of a locale using the UTF-8 encoding, used during self-tests.
    169 # The tests are skipped if the name does not appear to work on this system.
    170 
    171 UTF8_LOCALE=	en_US.utf8
    172 
    173 # Since "." may not be in PATH...
    174 
    175 YEARISTYPE=	./yearistype
    176 
    177 # Non-default libraries needed to link.
    178 LDLIBS=
    179 
    180 # Add the following to the end of the "CFLAGS=" line as needed to override
    181 # defaults specified in the source code.  "-DFOO" is equivalent to "-DFOO=1".
    182 #  -DDEPRECATE_TWO_DIGIT_YEARS for optional runtime warnings about strftime
    183 #	formats that generate only the last two digits of year numbers
    184 #  -DEPOCH_LOCAL if the 'time' function returns local time not UT
    185 #  -DEPOCH_OFFSET=N if the 'time' function returns a value N greater
    186 #	than what POSIX specifies, assuming local time is UT.
    187 #	For example, N is 252460800 on AmigaOS.
    188 #  -DHAVE_DECL_ASCTIME_R=0 if <time.h> does not declare asctime_r
    189 #  -DHAVE_DECL_ENVIRON if <unistd.h> declares 'environ'
    190 #  -DHAVE_DIRECT_H if mkdir needs <direct.h> (MS-Windows)
    191 #  -DHAVE_GENERIC=0 if _Generic does not work
    192 #  -DHAVE_GETTEXT if 'gettext' works (e.g., GNU/Linux, FreeBSD, Solaris)
    193 #  -DHAVE_INCOMPATIBLE_CTIME_R if your system's time.h declares
    194 #	ctime_r and asctime_r incompatibly with the POSIX standard
    195 #	(Solaris when _POSIX_PTHREAD_SEMANTICS is not defined).
    196 #  -DHAVE_INTTYPES_H if you have a non-C99 compiler with <inttypes.h>
    197 #  -DHAVE_LINK=0 if your system lacks a link function
    198 #  -DHAVE_LOCALTIME_R=0 if your system lacks a localtime_r function
    199 #  -DHAVE_LOCALTIME_RZ=0 if you do not want zdump to use localtime_rz
    200 #	localtime_rz can make zdump significantly faster, but is nonstandard.
    201 #  -DHAVE_POSIX_DECLS=0 if your system's include files do not declare
    202 #	functions like 'link' or variables like 'tzname' required by POSIX
    203 #  -DHAVE_SNPRINTF=0 if your system lacks the snprintf function
    204 #  -DHAVE_STDBOOL_H if you have a non-C99 compiler with <stdbool.h>
    205 #  -DHAVE_STDINT_H if you have a non-C99 compiler with <stdint.h>
    206 #  -DHAVE_STRFTIME_L if <time.h> declares locale_t and strftime_l
    207 #  -DHAVE_STRDUP=0 if your system lacks the strdup function
    208 #  -DHAVE_STRTOLL=0 if your system lacks the strtoll function
    209 #  -DHAVE_SYMLINK=0 if your system lacks the symlink function
    210 #  -DHAVE_SYS_STAT_H=0 if your compiler lacks a <sys/stat.h>
    211 #  -DHAVE_SYS_WAIT_H=0 if your compiler lacks a <sys/wait.h>
    212 #  -DHAVE_TZSET=0 if your system lacks a tzset function
    213 #  -DHAVE_UNISTD_H=0 if your compiler lacks a <unistd.h>
    214 #  -Dlocale_t=XXX if your system uses XXX instead of locale_t
    215 #  -DRESERVE_STD_EXT_IDS if your platform reserves standard identifiers
    216 #	with external linkage, e.g., applications cannot define 'localtime'.
    217 #  -Dssize_t=long on hosts like MS-Windows that lack ssize_t
    218 #  -DSUPPRESS_TZDIR to not prepend TZDIR to file names; this has
    219 #	security implications and is not recommended for general use
    220 #  -DTHREAD_SAFE to make localtime.c thread-safe, as POSIX requires;
    221 #	not needed by the main-program tz code, which is single-threaded.
    222 #	Append other compiler flags as needed, e.g., -pthread on GNU/Linux.
    223 #  -Dtime_tz=\"T\" to use T as the time_t type, rather than the system time_t
    224 #	This is intended for internal use only; it mangles external names.
    225 #  -DTZ_DOMAIN=\"foo\" to use "foo" for gettext domain name; default is "tz"
    226 #  -DTZ_DOMAINDIR=\"/path\" to use "/path" for gettext directory;
    227 #	the default is system-supplied, typically "/usr/lib/locale"
    228 #  -DTZDEFRULESTRING=\",date/time,date/time\" to default to the specified
    229 #	DST transitions if the time zone files cannot be accessed
    230 #  -DUNINIT_TRAP if reading uninitialized storage can cause problems
    231 #	other than simply getting garbage data
    232 #  -DUSE_LTZ=0 to build zdump with the system time zone library
    233 #	Also set TZDOBJS=zdump.o and CHECK_TIME_T_ALTERNATIVES= below.
    234 #  -DZIC_MAX_ABBR_LEN_WO_WARN=3
    235 #	(or some other number) to set the maximum time zone abbreviation length
    236 #	that zic will accept without a warning (the default is 6)
    237 #  $(GCC_DEBUG_FLAGS) if you are using recent GCC and want lots of checking
    238 # Select instrumentation via "make GCC_INSTRUMENT='whatever'".
    239 GCC_INSTRUMENT = \
    240   -fsanitize=undefined -fsanitize-address-use-after-scope \
    241   -fsanitize-undefined-trap-on-error -fstack-protector
    242 GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 -fno-common \
    243   $(GCC_INSTRUMENT) \
    244   -Wall -Wextra \
    245   -Walloc-size-larger-than=100000 -Warray-bounds=2 \
    246   -Wbad-function-cast -Wcast-align=strict -Wdate-time \
    247   -Wdeclaration-after-statement -Wdouble-promotion \
    248   -Wformat=2 -Wformat-overflow=2 -Wformat-signedness -Wformat-truncation \
    249   -Winit-self -Wjump-misses-init -Wlogical-op \
    250   -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
    251   -Wold-style-definition -Woverlength-strings -Wpointer-arith \
    252   -Wshadow -Wshift-overflow=2 -Wstrict-prototypes -Wstringop-overflow=4 \
    253   -Wstringop-truncation -Wsuggest-attribute=cold \
    254   -Wsuggest-attribute=const -Wsuggest-attribute=format \
    255   -Wsuggest-attribute=malloc \
    256   -Wsuggest-attribute=noreturn -Wsuggest-attribute=pure \
    257   -Wtrampolines -Wundef -Wuninitialized -Wunused \
    258   -Wvariadic-macros -Wvla -Wwrite-strings \
    259   -Wno-address -Wno-format-nonliteral -Wno-sign-compare \
    260   -Wno-type-limits -Wno-unused-parameter
    261 #
    262 # If your system has a "GMT offset" field in its "struct tm"s
    263 # (or if you decide to add such a field in your system's "time.h" file),
    264 # add the name to a define such as
    265 #	-DTM_GMTOFF=tm_gmtoff
    266 # to the end of the "CFLAGS=" line.  If not defined, the code attempts to
    267 # guess TM_GMTOFF from other macros; define NO_TM_GMTOFF to suppress this.
    268 # Similarly, if your system has a "zone abbreviation" field, define
    269 #	-DTM_ZONE=tm_zone
    270 # and define NO_TM_ZONE to suppress any guessing.  These two fields are not
    271 # required by POSIX, but are widely available on GNU/Linux and BSD systems.
    272 #
    273 # The next batch of options control support for external variables
    274 # exported by tzcode.  In practice these variables are less useful
    275 # than TM_GMTOFF and TM_ZONE.  However, most of them are standardized.
    276 # #
    277 # # To omit or support the external variable "tzname", add one of:
    278 # #	-DHAVE_TZNAME=0
    279 # #	-DHAVE_TZNAME=1
    280 # # to the "CFLAGS=" line.  "tzname" is required by POSIX 1988 and later.
    281 # # If not defined, the code attempts to guess HAVE_TZNAME from other macros.
    282 # # Warning: unless time_tz is also defined, HAVE_TZNAME=1 can cause
    283 # # crashes when combined with some platforms' standard libraries,
    284 # # presumably due to memory allocation issues.
    285 # #
    286 # # To omit or support the external variables "timezone" and "daylight", add
    287 # #	-DUSG_COMPAT=0
    288 # #	-DUSG_COMPAT=1
    289 # # to the "CFLAGS=" line; "timezone" and "daylight" are inspired by
    290 # # Unix Systems Group code and are required by POSIX 2008 (with XSI) and later.
    291 # # If not defined, the code attempts to guess USG_COMPAT from other macros.
    292 # #
    293 # # To support the external variable "altzone", add
    294 # #	-DALTZONE
    295 # # to the end of the "CFLAGS=" line; although "altzone" appeared in
    296 # # System V Release 3.1 it has not been standardized.
    297 #
    298 # If you want functions that were inspired by early versions of X3J11's work,
    299 # add
    300 #	-DSTD_INSPIRED
    301 # to the end of the "CFLAGS=" line.  This arranges for the functions
    302 # "tzsetwall", "offtime", "timelocal", "timegm", "timeoff",
    303 # "posix2time", and "time2posix" to be added to the time conversion library.
    304 # "tzsetwall" is like "tzset" except that it arranges for local wall clock
    305 # time (rather than the timezone specified in the TZ environment variable)
    306 # to be used.
    307 # "offtime" is like "gmtime" except that it accepts a second (long) argument
    308 # that gives an offset to add to the time_t when converting it.
    309 # "timelocal" is equivalent to "mktime".
    310 # "timegm" is like "timelocal" except that it turns a struct tm into
    311 # a time_t using UT (rather than local time as "timelocal" does).
    312 # "timeoff" is like "timegm" except that it accepts a second (long) argument
    313 # that gives an offset to use when converting to a time_t.
    314 # "posix2time" and "time2posix" are described in an included manual page.
    315 # X3J11's work does not describe any of these functions.
    316 # Sun has provided "tzsetwall", "timelocal", and "timegm" in SunOS 4.0.
    317 # These functions may well disappear in future releases of the time
    318 # conversion package.
    319 #
    320 # If you don't want functions that were inspired by NetBSD, add
    321 #	-DNETBSD_INSPIRED=0
    322 # to the end of the "CFLAGS=" line.  Otherwise, the functions
    323 # "localtime_rz", "mktime_z", "tzalloc", and "tzfree" are added to the
    324 # time library, and if STD_INSPIRED is also defined the functions
    325 # "posix2time_z" and "time2posix_z" are added as well.
    326 # The functions ending in "_z" (or "_rz") are like their unsuffixed
    327 # (or suffixed-by-"_r") counterparts, except with an extra first
    328 # argument of opaque type timezone_t that specifies the timezone.
    329 # "tzalloc" allocates a timezone_t value, and "tzfree" frees it.
    330 #
    331 # If you want to allocate state structures in localtime, add
    332 #	-DALL_STATE
    333 # to the end of the "CFLAGS=" line.  Storage is obtained by calling malloc.
    334 #
    335 # NIST-PCTS:151-2, Version 1.4, (1993-12-03) is a test suite put
    336 # out by the National Institute of Standards and Technology
    337 # which claims to test C and Posix conformance.  If you want to pass PCTS, add
    338 #	-DPCTS
    339 # to the end of the "CFLAGS=" line.
    340 #
    341 # If you want strict compliance with XPG4 as of 1994-04-09, add
    342 #	-DXPG4_1994_04_09
    343 # to the end of the "CFLAGS=" line.  This causes "strftime" to always return
    344 # 53 as a week number (rather than 52 or 53) for January days before
    345 # January's first Monday when a "%V" format is used and January 1
    346 # falls on a Friday, Saturday, or Sunday.
    347 
    348 CFLAGS=
    349 
    350 # Linker flags.  Default to $(LFLAGS) for backwards compatibility
    351 # to release 2012h and earlier.
    352 
    353 LDFLAGS=	$(LFLAGS)
    354 
    355 # For leap seconds, this Makefile uses LEAPSECONDS='-L leapseconds' in
    356 # submake command lines.  The default is no leap seconds.
    357 
    358 LEAPSECONDS=
    359 
    360 # The zic command and its arguments.
    361 
    362 zic=		./zic
    363 ZIC=		$(zic) $(ZFLAGS)
    364 
    365 # To shrink the size of installed TZif files,
    366 # append "-r @N" to omit data before N-seconds-after-the-Epoch.
    367 # See the zic man page for more about -r.
    368 ZFLAGS=
    369 
    370 # How to use zic to install TZif files.
    371 
    372 ZIC_INSTALL=	$(ZIC) -d '$(DESTDIR)$(TZDIR)' $(LEAPSECONDS)
    373 
    374 # The name of a Posix-compliant 'awk' on your system.
    375 # Older 'mawk' versions, such as the 'mawk' in Ubuntu 16.04, might dump core;
    376 # on Ubuntu you can work around this with
    377 #	AWK=		gawk
    378 AWK=		awk
    379 
    380 # The full path name of a Posix-compliant shell, preferably one that supports
    381 # the Korn shell's 'select' statement as an extension.
    382 # These days, Bash is the most popular.
    383 # It should be OK to set this to /bin/sh, on platforms where /bin/sh
    384 # lacks 'select' or doesn't completely conform to Posix, but /bin/bash
    385 # is typically nicer if it works.
    386 KSHELL=		/bin/bash
    387 
    388 # Name of curl <https://curl.haxx.se/>, used for HTML validation.
    389 CURL=		curl
    390 
    391 # The path where SGML DTDs are kept and the catalog file(s) to use when
    392 # validating HTML 4.01.  The default should work on both Debian and Red Hat.
    393 SGML_TOPDIR= /usr
    394 SGML_DTDDIR= $(SGML_TOPDIR)/share/xml/w3c-sgml-lib/schema/dtd
    395 SGML_SEARCH_PATH= $(SGML_DTDDIR)/REC-html401-19991224
    396 SGML_CATALOG_FILES= \
    397   $(SGML_TOPDIR)/share/doc/w3-recs/html/www.w3.org/TR/1999/REC-html401-19991224/HTML4.cat:$(SGML_TOPDIR)/share/sgml/html/4.01/HTML4.cat
    398 
    399 # The name, arguments and environment of a program to validate HTML 4.01.
    400 # See <http://openjade.sourceforge.net/doc/> for a validator, and
    401 # <https://validator.w3.org/source/> for a validation library.
    402 # Set VALIDATE=':' if you do not have such a program.
    403 VALIDATE = nsgmls
    404 VALIDATE_FLAGS = -s -B -wall -wno-unused-param
    405 VALIDATE_ENV = \
    406   SGML_CATALOG_FILES='$(SGML_CATALOG_FILES)' \
    407   SGML_SEARCH_PATH='$(SGML_SEARCH_PATH)' \
    408   SP_CHARSET_FIXED=YES \
    409   SP_ENCODING=UTF-8
    410 
    411 # This expensive test requires USE_LTZ.
    412 # To suppress it, define this macro to be empty.
    413 CHECK_TIME_T_ALTERNATIVES = check_time_t_alternatives
    414 
    415 # SAFE_CHAR is a regular expression that matches a safe character.
    416 # Some parts of this distribution are limited to safe characters;
    417 # others can use any UTF-8 character.
    418 # For now, the safe characters are a safe subset of ASCII.
    419 # The caller must set the shell variable 'sharp' to the character '#',
    420 # since Makefile macros cannot contain '#'.
    421 # TAB_CHAR is a single tab character, in single quotes.
    422 TAB_CHAR=	'	'
    423 SAFE_CHARSET1=	$(TAB_CHAR)' !\"'$$sharp'$$%&'\''()*+,./0123456789:;<=>?@'
    424 SAFE_CHARSET2=	'ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\^_`'
    425 SAFE_CHARSET3=	'abcdefghijklmnopqrstuvwxyz{|}~'
    426 SAFE_CHARSET=	$(SAFE_CHARSET1)$(SAFE_CHARSET2)$(SAFE_CHARSET3)
    427 SAFE_CHAR=	'[]'$(SAFE_CHARSET)'-]'
    428 
    429 # These characters are Latin-1, and so are likely to be displayable
    430 # even in editors with limited character sets.
    431 UNUSUAL_OK_LATIN_1 = 
    432 # This IPA symbol is represented in Unicode as the composition of
    433 # U+0075 and U+032F, and U+032F is not considered alphabetic by some
    434 # grep implementations that do not grok composition.
    435 UNUSUAL_OK_IPA = u
    436 # Non-ASCII non-letters that OK_CHAR allows, as these characters are
    437 # useful in commentary.
    438 UNUSUAL_OK_CHARSET= $(UNUSUAL_OK_LATIN_1)$(UNUSUAL_OK_IPA)
    439 
    440 # OK_CHAR matches any character allowed in the distributed files.
    441 # This is the same as SAFE_CHAR, except that UNUSUAL_OK_CHARSET and
    442 # multibyte letters are also allowed so that commentary can contain a
    443 # few safe symbols and people's names and can quote non-English sources.
    444 # Other non-letters are limited to ASCII renderings for the
    445 # convenience of maintainers using XEmacs 21.5.34, which by default
    446 # mishandles Unicode characters U+0100 and greater.
    447 OK_CHAR=	'[][:alpha:]$(UNUSUAL_OK_CHARSET)'$(SAFE_CHARSET)'-]'
    448 
    449 # SAFE_LINE matches a line of safe characters.
    450 # SAFE_SHARP_LINE is similar, except any OK character can follow '#';
    451 # this is so that comments can contain non-ASCII characters.
    452 # OK_LINE matches a line of OK characters.
    453 SAFE_LINE=	'^'$(SAFE_CHAR)'*$$'
    454 SAFE_SHARP_LINE='^'$(SAFE_CHAR)'*('$$sharp$(OK_CHAR)'*)?$$'
    455 OK_LINE=	'^'$(OK_CHAR)'*$$'
    456 
    457 # Flags to give 'tar' when making a distribution.
    458 # Try to use flags appropriate for GNU tar.
    459 GNUTARFLAGS= --numeric-owner --owner=0 --group=0 --mode=go+u,go-w --sort=name
    460 TARFLAGS=	`if tar $(GNUTARFLAGS) --version >/dev/null 2>&1; \
    461 		 then echo $(GNUTARFLAGS); \
    462 		 else :; \
    463 		 fi`
    464 
    465 # Flags to give 'gzip' when making a distribution.
    466 GZIPFLAGS=	-9n
    467 
    468 ###############################################################################
    469 
    470 #MAKE=		make
    471 
    472 cc=		cc
    473 CC=		$(cc) -DTZDIR='"$(TZDIR)"'
    474 
    475 AR=		ar
    476 
    477 # ':' on typical hosts; 'ranlib' on the ancient hosts that still need ranlib.
    478 RANLIB=		:
    479 
    480 TZCOBJS=	zic.o
    481 TZDOBJS=	zdump.o localtime.o asctime.o strftime.o
    482 DATEOBJS=	date.o localtime.o strftime.o asctime.o
    483 LIBSRCS=	localtime.c asctime.c difftime.c
    484 LIBOBJS=	localtime.o asctime.o difftime.o
    485 HEADERS=	tzfile.h private.h
    486 NONLIBSRCS=	zic.c zdump.c
    487 NEWUCBSRCS=	date.c strftime.c
    488 SOURCES=	$(HEADERS) $(LIBSRCS) $(NONLIBSRCS) $(NEWUCBSRCS) \
    489 			tzselect.ksh workman.sh
    490 MANS=		newctime.3 newstrftime.3 newtzset.3 time2posix.3 \
    491 			tzfile.5 tzselect.8 zic.8 zdump.8
    492 MANTXTS=	newctime.3.txt newstrftime.3.txt newtzset.3.txt \
    493 			time2posix.3.txt \
    494 			tzfile.5.txt tzselect.8.txt zic.8.txt zdump.8.txt \
    495 			date.1.txt
    496 COMMON=		calendars CONTRIBUTING LICENSE Makefile \
    497 			NEWS README theory.html version
    498 WEB_PAGES=	tz-art.html tz-how-to.html tz-link.html
    499 CHECK_WEB_PAGES=check_theory.html check_tz-art.html \
    500 			check_tz-how-to.html check_tz-link.html
    501 DOCS=		$(MANS) date.1 $(MANTXTS) $(WEB_PAGES)
    502 PRIMARY_YDATA=	africa antarctica asia australasia \
    503 		europe northamerica southamerica
    504 YDATA=		$(PRIMARY_YDATA) etcetera
    505 NDATA=		systemv factory
    506 TDATA_TO_CHECK=	$(YDATA) $(NDATA) backward pacificnew
    507 TDATA=		$(YDATA) $(NDATA) $(BACKWARD)
    508 ZONETABLES=	zone1970.tab zone.tab
    509 TABDATA=	iso3166.tab $(TZDATA_TEXT) $(ZONETABLES)
    510 LEAP_DEPS=	leapseconds.awk leap-seconds.list
    511 TZDATA_ZI_DEPS=	ziguard.awk zishrink.awk version $(TDATA) $(PACKRATDATA)
    512 DSTDATA_ZI_DEPS= ziguard.awk $(TDATA) $(PACKRATDATA)
    513 DATA=		$(TDATA_TO_CHECK) backzone iso3166.tab leap-seconds.list \
    514 			leapseconds yearistype.sh $(ZONETABLES)
    515 AWK_SCRIPTS=	checklinks.awk checktab.awk leapseconds.awk \
    516 			ziguard.awk zishrink.awk
    517 MISC=		$(AWK_SCRIPTS) zoneinfo2tdf.pl
    518 TZS_YEAR=	2050
    519 TZS_CUTOFF_FLAG=	-c $(TZS_YEAR)
    520 TZS=		to$(TZS_YEAR).tzs
    521 TZS_NEW=	to$(TZS_YEAR)new.tzs
    522 TZS_DEPS=	$(PRIMARY_YDATA) asctime.c localtime.c \
    523 			private.h tzfile.h zdump.c zic.c
    524 # EIGHT_YARDS is just a yard short of the whole ENCHILADA.
    525 EIGHT_YARDS = $(COMMON) $(DOCS) $(SOURCES) $(DATA) $(MISC) tzdata.zi
    526 ENCHILADA = $(EIGHT_YARDS) $(TZS)
    527 
    528 # Consult these files when deciding whether to rebuild the 'version' file.
    529 # This list is not the same as the output of 'git ls-files', since
    530 # .gitignore is not distributed.
    531 VERSION_DEPS= \
    532 		calendars CONTRIBUTING LICENSE Makefile NEWS README \
    533 		africa antarctica asctime.c asia australasia \
    534 		backward backzone \
    535 		checklinks.awk checktab.awk \
    536 		date.1 date.c difftime.c \
    537 		etcetera europe factory iso3166.tab \
    538 		leap-seconds.list leapseconds.awk localtime.c \
    539 		newctime.3 newstrftime.3 newtzset.3 northamerica \
    540 		pacificnew private.h \
    541 		southamerica strftime.c systemv theory.html \
    542 		time2posix.3 tz-art.html tz-how-to.html tz-link.html \
    543 		tzfile.5 tzfile.h tzselect.8 tzselect.ksh \
    544 		workman.sh yearistype.sh \
    545 		zdump.8 zdump.c zic.8 zic.c \
    546 		ziguard.awk zishrink.awk \
    547 		zone.tab zone1970.tab zoneinfo2tdf.pl
    548 
    549 # And for the benefit of csh users on systems that assume the user
    550 # shell should be used to handle commands in Makefiles. . .
    551 
    552 SHELL=		/bin/sh
    553 
    554 all:		tzselect yearistype zic zdump libtz.a $(TABDATA) \
    555 		  vanguard.zi main.zi rearguard.zi
    556 
    557 ALL:		all date $(ENCHILADA)
    558 
    559 install:	all $(DATA) $(REDO) $(MANS)
    560 		mkdir -p '$(DESTDIR)$(BINDIR)' \
    561 			'$(DESTDIR)$(ZDUMPDIR)' '$(DESTDIR)$(ZICDIR)' \
    562 			'$(DESTDIR)$(LIBDIR)' \
    563 			'$(DESTDIR)$(MANDIR)/man3' '$(DESTDIR)$(MANDIR)/man5' \
    564 			'$(DESTDIR)$(MANDIR)/man8'
    565 		$(ZIC_INSTALL) -l $(LOCALTIME) -p $(POSIXRULES) \
    566 			-t '$(DESTDIR)$(TZDEFAULT)'
    567 		cp -f $(TABDATA) '$(DESTDIR)$(TZDIR)/.'
    568 		cp tzselect '$(DESTDIR)$(BINDIR)/.'
    569 		cp zdump '$(DESTDIR)$(ZDUMPDIR)/.'
    570 		cp zic '$(DESTDIR)$(ZICDIR)/.'
    571 		cp libtz.a '$(DESTDIR)$(LIBDIR)/.'
    572 		$(RANLIB) '$(DESTDIR)$(LIBDIR)/libtz.a'
    573 		cp -f newctime.3 newtzset.3 '$(DESTDIR)$(MANDIR)/man3/.'
    574 		cp -f tzfile.5 '$(DESTDIR)$(MANDIR)/man5/.'
    575 		cp -f tzselect.8 zdump.8 zic.8 '$(DESTDIR)$(MANDIR)/man8/.'
    576 
    577 INSTALL:	ALL install date.1
    578 		mkdir -p '$(DESTDIR)$(BINDIR)' '$(DESTDIR)$(MANDIR)/man1'
    579 		cp date '$(DESTDIR)$(BINDIR)/.'
    580 		cp -f date.1 '$(DESTDIR)$(MANDIR)/man1/.'
    581 
    582 version:	$(VERSION_DEPS)
    583 		{ (type git) >/dev/null 2>&1 && \
    584 		  V=`git describe --match '[0-9][0-9][0-9][0-9][a-z]*' \
    585 				--abbrev=7 --dirty` || \
    586 		  V='$(VERSION)'; } && \
    587 		printf '%s\n' "$$V" >$@.out
    588 		mv $@.out $@
    589 
    590 # These files can be tailored by setting BACKWARD and PACKRATDATA.
    591 vanguard.zi main.zi rearguard.zi: $(DSTDATA_ZI_DEPS)
    592 		$(AWK) -v DATAFORM=`expr $@ : '\(.*\).zi'` -f ziguard.awk \
    593 		  $(TDATA) $(PACKRATDATA) >$@.out
    594 		mv $@.out $@
    595 # This file has a version comment that attempts to capture any tailoring
    596 # via BACKWARD, DATAFORM, PACKRATDATA, and REDO.
    597 tzdata.zi:	$(DATAFORM).zi version zishrink.awk
    598 		version=`sed 1q version` && \
    599 		  LC_ALL=C $(AWK) \
    600 		    -v dataform='$(DATAFORM)' \
    601 		    -v deps='$(DSTDATA_ZI_DEPS) zishrink.awk' \
    602 		    -v redo='$(REDO)' \
    603 		    -v version="$$version" \
    604 		    -f zishrink.awk \
    605 		    $(DATAFORM).zi >$@.out
    606 		mv $@.out $@
    607 
    608 version.h:	version
    609 		VERSION=`cat version` && printf '%s\n' \
    610 		  'static char const PKGVERSION[]="($(PACKAGE)) ";' \
    611 		  "static char const TZVERSION[]=\"$$VERSION\";" \
    612 		  'static char const REPORT_BUGS_TO[]="$(BUGEMAIL)";' \
    613 		  >$@.out
    614 		mv $@.out $@
    615 
    616 zdump:		$(TZDOBJS)
    617 		$(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZDOBJS) $(LDLIBS)
    618 
    619 zic:		$(TZCOBJS)
    620 		$(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZCOBJS) $(LDLIBS)
    621 
    622 yearistype:	yearistype.sh
    623 		cp yearistype.sh yearistype
    624 		chmod +x yearistype
    625 
    626 leapseconds:	$(LEAP_DEPS)
    627 		$(AWK) -f leapseconds.awk leap-seconds.list >$@.out
    628 		mv $@.out $@
    629 
    630 # Arguments to pass to submakes of install_data.
    631 # They can be overridden by later submake arguments.
    632 INSTALLARGS = \
    633  BACKWARD='$(BACKWARD)' \
    634  DESTDIR='$(DESTDIR)' \
    635  LEAPSECONDS='$(LEAPSECONDS)' \
    636  PACKRATDATA='$(PACKRATDATA)' \
    637  TZDEFAULT='$(TZDEFAULT)' \
    638  TZDIR='$(TZDIR)' \
    639  YEARISTYPE='$(YEARISTYPE)' \
    640  ZIC='$(ZIC)'
    641 
    642 INSTALL_DATA_DEPS = zic leapseconds yearistype tzdata.zi
    643 
    644 # 'make install_data' installs one set of TZif files.
    645 install_data: $(INSTALL_DATA_DEPS)
    646 		$(ZIC_INSTALL) tzdata.zi
    647 
    648 posix_only: $(INSTALL_DATA_DEPS)
    649 		$(MAKE) $(INSTALLARGS) LEAPSECONDS= install_data
    650 
    651 right_only: $(INSTALL_DATA_DEPS)
    652 		$(MAKE) $(INSTALLARGS) LEAPSECONDS='-L leapseconds' \
    653 			install_data
    654 
    655 # In earlier versions of this makefile, the other two directories were
    656 # subdirectories of $(TZDIR).  However, this led to configuration errors.
    657 # For example, with posix_right under the earlier scheme,
    658 # TZ='right/Australia/Adelaide' got you localtime with leap seconds,
    659 # but gmtime without leap seconds, which led to problems with applications
    660 # like sendmail that subtract gmtime from localtime.
    661 # Therefore, the other two directories are now siblings of $(TZDIR).
    662 # You must replace all of $(TZDIR) to switch from not using leap seconds
    663 # to using them, or vice versa.
    664 right_posix:	right_only
    665 		rm -fr '$(DESTDIR)$(TZDIR)-leaps'
    666 		ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-leaps' || \
    667 		  $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only
    668 		$(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only
    669 
    670 posix_right:	posix_only
    671 		rm -fr '$(DESTDIR)$(TZDIR)-posix'
    672 		ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-posix' || \
    673 		  $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only
    674 		$(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only
    675 
    676 # This obsolescent rule is present for backwards compatibility with
    677 # tz releases 2014g through 2015g.  It should go away eventually.
    678 posix_packrat: $(INSTALL_DATA_DEPS)
    679 		$(MAKE) $(INSTALLARGS) PACKRATDATA=backzone posix_only
    680 
    681 zones:		$(REDO)
    682 
    683 # dummy.zd is not a real file; it is mentioned here only so that the
    684 # top-level 'make' does not have a syntax error.
    685 ZDS = dummy.zd
    686 # Rule used only by submakes invoked by the $(TZS_NEW) rule.
    687 # It is separate so that GNU 'make -j' can run instances in parallel.
    688 $(ZDS): zdump
    689 		./zdump -i $(TZS_CUTOFF_FLAG) '$(wd)/'$$(expr $@ : '\(.*\).zd') \
    690 		  >$@
    691 
    692 TZS_NEW_DEPS = tzdata.zi zdump zic
    693 $(TZS_NEW): $(TZS_NEW_DEPS)
    694 		rm -fr tzs$(TZS_YEAR).dir
    695 		mkdir tzs$(TZS_YEAR).dir
    696 		$(zic) -d tzs$(TZS_YEAR).dir tzdata.zi
    697 		$(AWK) '/^L/{print "Link\t" $$2 "\t" $$3}' \
    698 		   tzdata.zi | LC_ALL=C sort >$@.out
    699 		wd=`pwd` && \
    700 		x=`$(AWK) '/^Z/{print "tzs$(TZS_YEAR).dir/" $$2 ".zd"}' \
    701 				tzdata.zi \
    702 			| LC_ALL=C sort -t . -k 2,2` && \
    703 		set x $$x && \
    704 		shift && \
    705 		ZDS=$$* && \
    706 		$(MAKE) wd="$$wd" TZS_CUTOFF_FLAG="$(TZS_CUTOFF_FLAG)" \
    707 		  ZDS="$$ZDS" $$ZDS && \
    708 		sed 's,^TZ=".*\.dir/,TZ=",' $$ZDS >>$@.out
    709 		rm -fr tzs$(TZS_YEAR).dir
    710 		mv $@.out $@
    711 
    712 # If $(TZS) exists but 'make check_tzs' fails, a maintainer should inspect the
    713 # failed output and fix the inconsistency, perhaps by running 'make force_tzs'.
    714 $(TZS):
    715 		touch $@
    716 
    717 force_tzs:	$(TZS_NEW)
    718 		cp $(TZS_NEW) $(TZS)
    719 
    720 libtz.a:	$(LIBOBJS)
    721 		rm -f $@
    722 		$(AR) -rc $@ $(LIBOBJS)
    723 		$(RANLIB) $@
    724 
    725 date:		$(DATEOBJS)
    726 		$(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(DATEOBJS) $(LDLIBS)
    727 
    728 tzselect:	tzselect.ksh version
    729 		VERSION=`cat version` && sed \
    730 			-e 's|#!/bin/bash|#!$(KSHELL)|g' \
    731 			-e 's|AWK=[^}]*|AWK=$(AWK)|g' \
    732 			-e 's|\(PKGVERSION\)=.*|\1='\''($(PACKAGE)) '\''|' \
    733 			-e 's|\(REPORT_BUGS_TO\)=.*|\1=$(BUGEMAIL)|' \
    734 			-e 's|TZDIR=[^}]*|TZDIR=$(TZDIR)|' \
    735 			-e 's|\(TZVERSION\)=.*|\1='"$$VERSION"'|' \
    736 			<$@.ksh >$@.out
    737 		chmod +x $@.out
    738 		mv $@.out $@
    739 
    740 check:		check_character_set check_white_space check_links \
    741 		  check_name_lengths check_sorted \
    742 		  check_tables check_web check_zishrink check_tzs
    743 
    744 check_character_set: $(ENCHILADA)
    745 	test ! '$(UTF8_LOCALE)' || \
    746 	! printf 'A\304\200B\n' | \
    747 	  LC_ALL='$(UTF8_LOCALE)' grep -q '^A.B$$' >/dev/null 2>&1 || { \
    748 		LC_ALL='$(UTF8_LOCALE)' && export LC_ALL && \
    749 		sharp='#' && \
    750 		! grep -Env $(SAFE_LINE) $(MANS) date.1 $(MANTXTS) \
    751 			$(MISC) $(SOURCES) $(WEB_PAGES) \
    752 			CONTRIBUTING LICENSE README \
    753 			version tzdata.zi && \
    754 		! grep -Env $(SAFE_LINE)'|^UNUSUAL_OK_'$(OK_CHAR)'*$$' \
    755 			Makefile && \
    756 		! grep -Env $(SAFE_SHARP_LINE) $(TDATA_TO_CHECK) backzone \
    757 			leapseconds yearistype.sh zone.tab && \
    758 		! grep -Env $(OK_LINE) $(ENCHILADA); \
    759 	}
    760 	touch $@
    761 
    762 check_white_space: $(ENCHILADA)
    763 		patfmt=' \t|[\f\r\v]' && pat=`printf "$$patfmt\\n"` && \
    764 		! grep -En "$$pat" \
    765 			$$(ls $(ENCHILADA) | grep -Fvx leap-seconds.list)
    766 		! grep -n '[[:space:]]$$' \
    767 			$$(ls $(ENCHILADA) | grep -Fvx leap-seconds.list)
    768 		touch $@
    769 
    770 PRECEDES_FILE_NAME = ^(Zone|Link[[:space:]]+[^[:space:]]+)[[:space:]]+
    771 FILE_NAME_COMPONENT_TOO_LONG = \
    772   $(PRECEDES_FILE_NAME)[^[:space:]]*[^/[:space:]]{15}
    773 
    774 check_name_lengths: $(TDATA_TO_CHECK) backzone
    775 		! grep -En '$(FILE_NAME_COMPONENT_TOO_LONG)' \
    776 			$(TDATA_TO_CHECK) backzone
    777 		touch $@
    778 
    779 CHECK_CC_LIST = { n = split($$1,a,/,/); for (i=2; i<=n; i++) print a[1], a[i]; }
    780 
    781 check_sorted: backward backzone iso3166.tab zone.tab zone1970.tab
    782 		$(AWK) '/^Link/ {print $$3}' backward | LC_ALL=C sort -cu
    783 		$(AWK) '/^Zone/ {print $$2}' backzone | LC_ALL=C sort -cu
    784 		$(AWK) '/^[^#]/ {print $$1}' iso3166.tab | LC_ALL=C sort -cu
    785 		$(AWK) '/^[^#]/ {print $$1}' zone.tab | LC_ALL=C sort -c
    786 		$(AWK) '/^[^#]/ {print substr($$0, 1, 2)}' zone1970.tab | \
    787 		  LC_ALL=C sort -c
    788 		$(AWK) '/^[^#]/ $(CHECK_CC_LIST)' zone1970.tab | \
    789 		  LC_ALL=C sort -cu
    790 		touch $@
    791 
    792 check_links:	checklinks.awk $(TDATA_TO_CHECK) tzdata.zi
    793 		$(AWK) -f checklinks.awk $(TDATA_TO_CHECK)
    794 		$(AWK) -f checklinks.awk tzdata.zi
    795 		touch $@
    796 
    797 check_tables:	checktab.awk $(PRIMARY_YDATA) $(ZONETABLES)
    798 		for tab in $(ZONETABLES); do \
    799 		  $(AWK) -f checktab.awk -v zone_table=$$tab $(PRIMARY_YDATA) \
    800 		    || exit; \
    801 		done
    802 		touch $@
    803 
    804 check_tzs:	$(TZS) $(TZS_NEW)
    805 		if test -s $(TZS); then \
    806 		  diff -u $(TZS) $(TZS_NEW); \
    807 		else \
    808 		  cp $(TZS_NEW) $(TZS); \
    809 		fi
    810 		touch $@
    811 
    812 check_web:	$(CHECK_WEB_PAGES)
    813 check_theory.html: theory.html
    814 check_tz-art.html: tz-art.html
    815 check_tz-link.html: tz-link.html
    816 check_theory.html check_tz-art.html check_tz-link.html:
    817 		$(CURL) -sS --url https://validator.w3.org/nu/ -F out=gnu \
    818 		    -F file=@$$(expr $@ : 'check_\(.*\)') -o $@.out && \
    819 		  test ! -s $@.out || { cat $@.out; exit 1; }
    820 		mv $@.out $@
    821 check_tz-how-to.html: tz-how-to.html
    822 		$(VALIDATE_ENV) $(VALIDATE) $(VALIDATE_FLAGS) tz-how-to.html
    823 		touch $@
    824 
    825 # Check that zishrink.awk does not alter the data, and that ziguard.awk
    826 # preserves main-format data.
    827 check_zishrink: check_zishrink_posix check_zishrink_right
    828 check_zishrink_posix check_zishrink_right: \
    829   zic leapseconds $(PACKRATDATA) $(TDATA) $(DATAFORM).zi tzdata.zi
    830 		rm -fr $@.dir $@-t.dir $@-shrunk.dir
    831 		mkdir $@.dir $@-t.dir $@-shrunk.dir
    832 		case $@ in \
    833 		  *_right) leap='-L leapseconds';; \
    834 		  *) leap=;; \
    835 		esac && \
    836 		  $(ZIC) $$leap -d $@.dir $(DATAFORM).zi && \
    837 		  $(ZIC) $$leap -d $@-shrunk.dir tzdata.zi && \
    838 		  case $(DATAFORM) in \
    839 		    main) \
    840 		      $(ZIC) $$leap -d $@-t.dir $(TDATA) && \
    841 		      $(AWK) '/^Rule/' $(TDATA) | \
    842 			$(ZIC) $$leap -d $@-t.dir - $(PACKRATDATA) && \
    843 		      diff -r $@.dir $@-t.dir;; \
    844 		  esac
    845 		diff -r $@.dir $@-shrunk.dir
    846 		rm -fr $@.dir $@-t.dir $@-shrunk.dir
    847 		touch $@
    848 
    849 clean_misc:
    850 		rm -fr check_*.dir
    851 		rm -f *.o *.out $(TIME_T_ALTERNATIVES) \
    852 		  check_* core typecheck_* \
    853 		  date tzselect version.h zdump zic yearistype libtz.a
    854 clean:		clean_misc
    855 		rm -fr *.dir tzdb-*/
    856 		rm -f *.zi $(TZS_NEW)
    857 
    858 maintainer-clean: clean
    859 		@echo 'This command is intended for maintainers to use; it'
    860 		@echo 'deletes files that may need special tools to rebuild.'
    861 		rm -f leapseconds version $(MANTXTS) $(TZS) *.asc *.tar.*
    862 
    863 names:
    864 		@echo $(ENCHILADA)
    865 
    866 public:		check check_public $(CHECK_TIME_T_ALTERNATIVES) \
    867 		tarballs signatures
    868 
    869 date.1.txt:	date.1
    870 newctime.3.txt:	newctime.3
    871 newstrftime.3.txt: newstrftime.3
    872 newtzset.3.txt:	newtzset.3
    873 time2posix.3.txt: time2posix.3
    874 tzfile.5.txt:	tzfile.5
    875 tzselect.8.txt:	tzselect.8
    876 zdump.8.txt:	zdump.8
    877 zic.8.txt:	zic.8
    878 
    879 $(MANTXTS):	workman.sh
    880 		LC_ALL=C sh workman.sh `expr $@ : '\(.*\)\.txt$$'` >$@.out
    881 		mv $@.out $@
    882 
    883 # Set the timestamps to those of the git repository, if available,
    884 # and if the files have not changed since then.
    885 # This uses GNU 'touch' syntax 'touch -d@N FILE',
    886 # where N is the number of seconds since 1970.
    887 # If git or GNU 'touch' is absent, don't bother to sync with git timestamps.
    888 # Also, set the timestamp of each prebuilt file like 'leapseconds'
    889 # to be the maximum of the files it depends on.
    890 set-timestamps.out: $(EIGHT_YARDS)
    891 		rm -f $@
    892 		if (type git) >/dev/null 2>&1 && \
    893 		   files=`git ls-files $(EIGHT_YARDS)` && \
    894 		   touch -md @1 test.out; then \
    895 		  rm -f test.out && \
    896 		  for file in $$files; do \
    897 		    if git diff --quiet $$file; then \
    898 		      time=`git log -1 --format='tformat:%ct' $$file` && \
    899 		      touch -cmd @$$time $$file; \
    900 		    else \
    901 		      echo >&2 "$$file: warning: does not match repository"; \
    902 		    fi || exit; \
    903 		  done; \
    904 		fi
    905 		touch -cmr `ls -t $(LEAP_DEPS) | sed 1q` leapseconds
    906 		for file in `ls $(MANTXTS) | sed 's/\.txt$$//'`; do \
    907 		  touch -cmr `ls -t $$file workman.sh | sed 1q` $$file.txt || \
    908 		    exit; \
    909 		done
    910 		touch -cmr `ls -t $(TZDATA_ZI_DEPS) | sed 1q` tzdata.zi
    911 		touch -cmr `ls -t $(VERSION_DEPS) | sed 1q` version
    912 		touch $@
    913 set-tzs-timestamp.out: $(TZS)
    914 		touch -cmr `ls -t $(TZS_DEPS) | sed 1q` $(TZS)
    915 		touch $@
    916 
    917 # The zics below ensure that each data file can stand on its own.
    918 # We also do an all-files run to catch links to links.
    919 
    920 check_public: $(VERSION_DEPS)
    921 		rm -fr public.dir
    922 		mkdir public.dir
    923 		ln $(VERSION_DEPS) public.dir
    924 		cd public.dir && $(MAKE) CFLAGS='$(GCC_DEBUG_FLAGS)' ALL
    925 		for i in $(TDATA_TO_CHECK) public.dir/tzdata.zi; do \
    926 		  public.dir/zic -v -d public.dir/zoneinfo $$i 2>&1 || exit; \
    927 		done
    928 		public.dir/zic -v -d public.dir/zoneinfo-all $(TDATA_TO_CHECK)
    929 		rm -fr public.dir
    930 		touch $@
    931 
    932 # Check that the code works under various alternative
    933 # implementations of time_t.
    934 check_time_t_alternatives: $(TIME_T_ALTERNATIVES)
    935 $(TIME_T_ALTERNATIVES_TAIL): $(TIME_T_ALTERNATIVES_HEAD)
    936 $(TIME_T_ALTERNATIVES): $(VERSION_DEPS)
    937 		rm -fr $@.dir
    938 		mkdir $@.dir
    939 		ln $(VERSION_DEPS) $@.dir
    940 		case $@ in \
    941 		  int32_t) range=-2147483648,2147483648;; \
    942 		  u*) range=0,4294967296;; \
    943 		  *) range=-4294967296,4294967296;; \
    944 		esac && \
    945 		wd=`pwd` && \
    946 		zones=`$(AWK) '/^[^#]/ { print $$3 }' <zone1970.tab` && \
    947 		if test $@ = $(TIME_T_ALTERNATIVES_HEAD); then \
    948 		  range_target=; \
    949 		else \
    950 		  range_target=to$$range.tzs; \
    951 		fi && \
    952 		(cd $@.dir && \
    953 		  $(MAKE) TOPDIR="$$wd/$@.dir" \
    954 		    CFLAGS='$(CFLAGS) -Dtime_tz='"'$@'" \
    955 		    REDO='$(REDO)' \
    956 			D=$$wd/$@.dir \
    957 		    TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \
    958 		    install $$range_target) && \
    959 		test $@ = $(TIME_T_ALTERNATIVES_HEAD) || { \
    960 		  (cd $(TIME_T_ALTERNATIVES_HEAD).dir && \
    961 		    $(MAKE) TOPDIR="$$wd/$@.dir" \
    962 		      TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \
    963 			D=$$wd/$@.dir \
    964 		      to$$range.tzs) && \
    965 		  diff -u $(TIME_T_ALTERNATIVES_HEAD).dir/to$$range.tzs \
    966 			  $@.dir/to$$range.tzs && \
    967 		  if diff -q Makefile Makefile 2>/dev/null; then \
    968 		    quiet_option='-q'; \
    969 		  else \
    970 		    quiet_option=''; \
    971 		  fi && \
    972 		    diff $$quiet_option -r $(TIME_T_ALTERNATIVES_HEAD).dir/etc \
    973 					   $@.dir/etc && \
    974 		    diff $$quiet_option -r \
    975 		      $(TIME_T_ALTERNATIVES_HEAD).dir/usr/share \
    976 		      $@.dir/usr/share; \
    977 		}
    978 		touch $@
    979 
    980 TRADITIONAL_ASC = \
    981   tzcode$(VERSION).tar.gz.asc \
    982   tzdata$(VERSION).tar.gz.asc
    983 REARGUARD_ASC = \
    984   tzdata$(VERSION)-rearguard.tar.gz.asc
    985 ALL_ASC = $(TRADITIONAL_ASC) $(REARGUARD_ASC) \
    986   tzdb-$(VERSION).tar.lz.asc
    987 
    988 tarballs rearguard_tarballs traditional_tarballs \
    989 signatures rearguard_signatures traditional_signatures: \
    990   version set-timestamps.out rearguard.zi
    991 		VERSION=`cat version` && \
    992 		$(MAKE) VERSION="$$VERSION" $@_version
    993 
    994 # These *_version rules are intended for use if VERSION is set by some
    995 # other means.  Ordinarily these rules are used only by the above
    996 # non-_version rules, which set VERSION on the 'make' command line.
    997 tarballs_version: traditional_tarballs_version rearguard_tarballs_version \
    998   tzdb-$(VERSION).tar.lz
    999 rearguard_tarballs_version: \
   1000   tzdata$(VERSION)-rearguard.tar.gz
   1001 traditional_tarballs_version: \
   1002   tzcode$(VERSION).tar.gz tzdata$(VERSION).tar.gz
   1003 signatures_version: $(ALL_ASC)
   1004 rearguard_signatures_version: $(REARGUARD_ASC)
   1005 traditional_signatures_version: $(TRADITIONAL_ASC)
   1006 
   1007 tzcode$(VERSION).tar.gz: set-timestamps.out
   1008 		LC_ALL=C && export LC_ALL && \
   1009 		tar $(TARFLAGS) -cf - \
   1010 		    $(COMMON) $(DOCS) $(SOURCES) | \
   1011 		  gzip $(GZIPFLAGS) >$@.out
   1012 		mv $@.out $@
   1013 
   1014 tzdata$(VERSION).tar.gz: set-timestamps.out
   1015 		LC_ALL=C && export LC_ALL && \
   1016 		tar $(TARFLAGS) -cf - $(COMMON) $(DATA) $(MISC) | \
   1017 		  gzip $(GZIPFLAGS) >$@.out
   1018 		mv $@.out $@
   1019 
   1020 tzdata$(VERSION)-rearguard.tar.gz: rearguard.zi set-timestamps.out
   1021 		rm -fr tzdata$(VERSION)-rearguard.dir
   1022 		mkdir tzdata$(VERSION)-rearguard.dir
   1023 		ln $(COMMON) $(DATA) $(MISC) tzdata$(VERSION)-rearguard.dir
   1024 		cd tzdata$(VERSION)-rearguard.dir && \
   1025 		  rm -f $(TDATA) $(PACKRATDATA) version
   1026 		for f in $(TDATA) $(PACKRATDATA); do \
   1027 		  rearf=tzdata$(VERSION)-rearguard.dir/$$f; \
   1028 		  $(AWK) -v DATAFORM=rearguard -f ziguard.awk $$f >$$rearf && \
   1029 		  touch -cmr `ls -t ziguard.awk $$f` $$rearf || exit; \
   1030 		done
   1031 		sed '1s/$$/-rearguard/' \
   1032 		  <version >tzdata$(VERSION)-rearguard.dir/version
   1033 		touch -cmr version tzdata$(VERSION)-rearguard.dir/version
   1034 		LC_ALL=C && export LC_ALL && \
   1035 		  (cd tzdata$(VERSION)-rearguard.dir && \
   1036 		   tar $(TARFLAGS) -cf - $(COMMON) $(DATA) $(MISC) | \
   1037 		     gzip $(GZIPFLAGS)) >$@.out
   1038 		mv $@.out $@
   1039 
   1040 tzdb-$(VERSION).tar.lz: set-timestamps.out set-tzs-timestamp.out
   1041 		rm -fr tzdb-$(VERSION)
   1042 		mkdir tzdb-$(VERSION)
   1043 		ln $(ENCHILADA) tzdb-$(VERSION)
   1044 		touch -cmr `ls -t tzdb-$(VERSION)/* | sed 1q` tzdb-$(VERSION)
   1045 		LC_ALL=C && export LC_ALL && \
   1046 		tar $(TARFLAGS) -cf - tzdb-$(VERSION) | lzip -9 >$@.out
   1047 		mv $@.out $@
   1048 
   1049 tzcode$(VERSION).tar.gz.asc: tzcode$(VERSION).tar.gz
   1050 tzdata$(VERSION).tar.gz.asc: tzdata$(VERSION).tar.gz
   1051 tzdata$(VERSION)-rearguard.tar.gz.asc: tzdata$(VERSION)-rearguard.tar.gz
   1052 tzdb-$(VERSION).tar.lz.asc: tzdb-$(VERSION).tar.lz
   1053 $(ALL_ASC):
   1054 		gpg2 --armor --detach-sign $?
   1055 
   1056 TYPECHECK_CFLAGS = $(CFLAGS) -DTYPECHECK -D__time_t_defined -D_TIME_T
   1057 typecheck: typecheck_long_long typecheck_unsigned
   1058 typecheck_long_long typecheck_unsigned: $(VERSION_DEPS)
   1059 		rm -fr $@.dir
   1060 		mkdir $@.dir
   1061 		ln $(VERSION_DEPS) $@.dir
   1062 		cd $@.dir && \
   1063 		  case $@ in \
   1064 		    *_long_long) i="long long";; \
   1065 		    *_unsigned ) i="unsigned" ;; \
   1066 		  esac && \
   1067 		  typecheck_cflags='' && \
   1068 		  $(MAKE) \
   1069 		    CFLAGS="$(TYPECHECK_CFLAGS) \"-Dtime_t=$$i\"" \
   1070 		    TOPDIR="`pwd`" \
   1071 		    install
   1072 		$@.dir/zdump -i -c 1970,1971 Europe/Rome
   1073 		touch $@
   1074 
   1075 zonenames:	tzdata.zi
   1076 		@$(AWK) '/^Z/ { print $$2 } /^L/ { print $$3 }' tzdata.zi
   1077 
   1078 asctime.o:	private.h tzfile.h
   1079 date.o:		private.h
   1080 difftime.o:	private.h
   1081 localtime.o:	private.h tzfile.h
   1082 strftime.o:	private.h tzfile.h
   1083 zdump.o:	version.h
   1084 zic.o:		private.h tzfile.h version.h
   1085 
   1086 .KEEP_STATE:
   1087 
   1088 .PHONY: ALL INSTALL all
   1089 .PHONY: check check_time_t_alternatives
   1090 .PHONY: check_web check_zishrink
   1091 .PHONY: clean clean_misc dummy.zd force_tzs
   1092 .PHONY: install install_data maintainer-clean names
   1093 .PHONY: posix_only posix_packrat posix_right public
   1094 .PHONY: rearguard_signatures rearguard_signatures_version
   1095 .PHONY: rearguard_tarballs rearguard_tarballs_version
   1096 .PHONY: right_only right_posix signatures signatures_version
   1097 .PHONY: tarballs tarballs_version
   1098 .PHONY: traditional_signatures traditional_signatures_version
   1099 .PHONY: traditional_tarballs traditional_tarballs_version
   1100 .PHONY: typecheck
   1101 .PHONY: zonenames zones
   1102 .PHONY: $(ZDS)
   1103