1 # Make and install tzdb code and data. 2 # This file is in the public domain, so clarified as of 3 # 2009-05-17 by Arthur David Olson. 4 # Request POSIX conformance; this must be the first non-comment line. 5 .POSIX: 6 # On older platforms you may need to scrounge for POSIX conformance. 7 # For example, on Solaris 10 (2005) with Sun Studio 12 aka Sun C 5.9 (2007), 8 # use 'PATH=/usr/xpg4/bin:$PATH make CC=c99'. 9 10 # To affect how this Makefile works, you can run a shell script like this: 11 # 12 # #!/bin/sh 13 # make CC='gcc -std=gnu23' "$@" 14 # 15 # This example script is appropriate for a circa 2024 GNU/Linux system 16 # where a non-default setting enables this package's optional use of C23. 17 # 18 # Alternatively, you can simply edit this Makefile to tailor the following 19 # macro definitions. 20 21 ############################################################################### 22 # Start of macros that one plausibly might want to tailor. 23 24 # Package name for the code distribution. 25 PACKAGE= tzcode 26 27 # Version number for the distribution, overridden in the 'tarballs' rule below. 28 VERSION= unknown 29 30 # Email address for bug reports. 31 BUGEMAIL= tz@iana.org 32 33 # DATAFORM selects the data format. 34 # Available formats represent essentially the same data, albeit 35 # possibly with minor discrepancies that users are not likely to notice. 36 # To get new features and the best data right away, use: 37 # DATAFORM= vanguard 38 # To wait a while before using new features, to give downstream users 39 # time to upgrade zic (the default), use: 40 # DATAFORM= main 41 # To wait even longer for new features, use: 42 # DATAFORM= rearguard 43 # Rearguard users might also want "ZFLAGS = -b fat"; see below. 44 DATAFORM= main 45 46 # Change the line below for your timezone (after finding the one you want in 47 # one of the $(TDATA) source files, or adding it to a source file). 48 # Alternatively, if you discover you've got the wrong timezone, you can just 49 # 'zic -l -' to remove it, or 'zic -l rightzone' to change it. 50 # Use the command 51 # make zonenames 52 # to get a list of the values you can use for LOCALTIME. 53 54 LOCALTIME= Factory 55 56 # The POSIXRULES macro controls interpretation of POSIX-like TZ 57 # settings like TZ='EET-2EEST' that lack DST transition rules. 58 # If POSIXRULES is '-', no template is installed; this is the default. 59 # Any other value for POSIXRULES is obsolete and should not be relied on, as: 60 # * It does not work correctly in popular implementations such as GNU/Linux. 61 # * It does not work even in tzcode, except for historical timestamps 62 # that precede the last explicit transition in the POSIXRULES file. 63 # Hence it typically does not work for current and future timestamps. 64 # If, despite the above, you want a template for handling these settings, 65 # you can change the line below (after finding the timezone you want in the 66 # one of the $(TDATA) source files, or adding it to a source file). 67 # Alternatively, if you discover you've got the wrong timezone, you can just 68 # 'zic -p -' to remove it, or 'zic -p rightzone' to change it. 69 # Use the command 70 # make zonenames 71 # to get a list of the values you can use for POSIXRULES. 72 73 POSIXRULES= - 74 75 # Also see TZDEFRULESTRING below, which takes effect only 76 # if POSIXRULES is '-' or if the template file cannot be accessed. 77 78 79 # Installation locations. 80 # 81 # The defaults are suitable for Debian, except that if REDO is 82 # posix_right or right_posix then files that Debian puts under 83 # /usr/share/zoneinfo/posix and /usr/share/zoneinfo/right are instead 84 # put under /usr/share/zoneinfo-posix and /usr/share/zoneinfo-leaps, 85 # respectively. Problems with the Debian approach are discussed in 86 # the commentary for the right_posix rule (below). 87 88 # Destination directory, which can be used for staging. 89 # 'make DESTDIR=/stage install' installs under /stage (e.g., to 90 # /stage/etc/localtime instead of to /etc/localtime). Files under 91 # /stage are not intended to work as-is, but can be copied by hand to 92 # the root directory later. If DESTDIR is empty, 'make install' does 93 # not stage, but installs directly into production locations. 94 DESTDIR = 95 96 # Everything is installed into subdirectories of TOPDIR, and used there. 97 # TOPDIR should be empty (meaning the root directory), 98 # or a directory name that does not end in "/". 99 # TOPDIR should be empty or an absolute name unless you're just testing. 100 TOPDIR = 101 102 # The default local timezone is taken from the file TZDEFAULT. 103 TZDEFAULT = $(TOPDIR)/etc/localtime 104 105 # The subdirectory containing installed program and data files, and 106 # likewise for installed files that can be shared among architectures. 107 # These should be relative file names. 108 USRDIR = usr 109 USRSHAREDIR = $(USRDIR)/share 110 111 # "Compiled" timezone information is placed in the "TZDIR" directory 112 # (and subdirectories). 113 # TZDIR_BASENAME should not contain "/" and should not be ".", ".." or empty. 114 TZDIR_BASENAME= zoneinfo 115 TZDIR = $(TOPDIR)/$(USRSHAREDIR)/$(TZDIR_BASENAME) 116 117 # The "tzselect" and (if you do "make INSTALL") "date" commands go in: 118 BINDIR = $(TOPDIR)/$(USRDIR)/bin 119 120 # The "zdump" command goes in: 121 ZDUMPDIR = $(BINDIR) 122 123 # The "zic" command goes in: 124 ZICDIR = $(TOPDIR)/$(USRDIR)/sbin 125 126 # Manual pages go in subdirectories of. . . 127 MANDIR = $(TOPDIR)/$(USRSHAREDIR)/man 128 129 # Library functions are put in an archive in LIBDIR. 130 LIBDIR = $(TOPDIR)/$(USRDIR)/lib 131 132 133 # Types to try, as an alternative to time_t. 134 TIME_T_ALTERNATIVES = $(TIME_T_ALTERNATIVES_HEAD) $(TIME_T_ALTERNATIVES_TAIL) 135 TIME_T_ALTERNATIVES_HEAD = int_least64_t.ck 136 TIME_T_ALTERNATIVES_TAIL = int_least32_t.ck uint_least32_t.ck \ 137 uint_least64_t.ck 138 139 # What kind of TZif data files to generate. (TZif is the binary time 140 # zone data format that zic generates; see Internet RFC 9636.) 141 # If you want only POSIX time, with time values interpreted as 142 # seconds since the epoch (not counting leap seconds), use 143 # REDO= posix_only 144 # below. If you want only "right" time, with values interpreted 145 # as seconds since the epoch (counting leap seconds), use 146 # REDO= right_only 147 # below. If you want both sets of data available, with leap seconds not 148 # counted normally, use 149 # REDO= posix_right 150 # below. If you want both sets of data available, with leap seconds counted 151 # normally, use 152 # REDO= right_posix 153 # below. POSIX mandates that leap seconds not be counted; for compatibility 154 # with it, use "posix_only" or "posix_right". Use POSIX time on systems with 155 # leap smearing; this can work better than unsmeared "right" time with 156 # applications that are not leap second aware, and is closer to unsmeared 157 # "right" time than unsmeared POSIX time is (e.g., 0.5 vs 1.0 s max error). 158 159 REDO= posix_right 160 161 # Whether to put an "Expires" line in the leapseconds file. 162 # Use EXPIRES_LINE=1 to put the line in, 0 to omit it. 163 # The EXPIRES_LINE value matters only if REDO's value contains "right". 164 # If you change EXPIRES_LINE, remove the leapseconds file before running "make". 165 # zic's support for the Expires line was introduced in tzdb 2020a, 166 # and was modified in tzdb 2021b to generate version 4 TZif files. 167 # EXPIRES_LINE defaults to 0 for now so that the leapseconds file 168 # can be given to pre-2020a zic implementations and so that TZif files 169 # built by newer zic implementations can be read by pre-2021b libraries. 170 EXPIRES_LINE= 0 171 172 # To install data in text form that has all the information of the TZif data, 173 # (optionally incorporating leap second information), use 174 # TZDATA_TEXT= tzdata.zi leapseconds 175 # To install text data without leap second information (e.g., because 176 # REDO='posix_only'), use 177 # TZDATA_TEXT= tzdata.zi 178 # To avoid installing text data, use 179 # TZDATA_TEXT= 180 181 TZDATA_TEXT= leapseconds tzdata.zi 182 183 # For backward-compatibility links for old zone names, use 184 # BACKWARD= backward 185 # To omit these links, use 186 # BACKWARD= 187 188 BACKWARD= backward 189 190 # If you want out-of-scope and often-wrong data from the file 'backzone', 191 # but only for entries listed in the backward-compatibility file zone.tab, use 192 # PACKRATDATA= backzone 193 # PACKRATLIST= zone.tab 194 # If you want all the 'backzone' data, use 195 # PACKRATDATA= backzone 196 # PACKRATLIST= 197 # To omit this data, use 198 # PACKRATDATA= 199 # PACKRATLIST= 200 201 PACKRATDATA= 202 PACKRATLIST= 203 204 # The name of a locale using the UTF-8 encoding, used during self-tests. 205 # The tests are skipped if the name does not appear to work on this system. 206 207 UTF8_LOCALE= en_US.utf8 208 209 # Non-default libraries needed to link. 210 # On some hosts, this should have -lintl unless CFLAGS has -DHAVE_GETTEXT=0. 211 LDLIBS= 212 213 # Add the following to an uncommented "CFLAGS=" line as needed 214 # to override defaults specified in the source code or by the system. 215 # "-DFOO" is equivalent to "-DFOO=1". 216 # -DDEPRECATE_TWO_DIGIT_YEARS for optional runtime warnings about strftime 217 # formats that generate only the last two digits of year numbers 218 # -DEPOCH_LOCAL if the 'time' function returns local time not UT 219 # -DEPOCH_OFFSET=N if the 'time' function returns a value N greater 220 # than what POSIX specifies, assuming local time is UT. 221 # For example, N is 252460800 on AmigaOS. 222 # -DHAVE_DECL_ASCTIME_R=0 if <time.h> does not declare asctime_r 223 # on POSIX platforms predating POSIX.1-2024 224 # -DHAVE_DECL_ENVIRON if <unistd.h> declares 'environ' 225 # -DHAVE_DECL_TIMEGM=0 if <time.h> does not declare timegm 226 # -DHAVE_DIRECT_H if mkdir needs <direct.h> (MS-Windows) 227 # -DHAVE__GENERIC=0 if _Generic does not work* 228 # -DHAVE_GETRANDOM if getrandom works (e.g., GNU/Linux), 229 # -DHAVE_GETRANDOM=0 to avoid using getrandom 230 # -DHAVE_GETTEXT if gettext works (e.g., GNU/Linux, FreeBSD, Solaris), 231 # where LDLIBS also needs to contain -lintl on some hosts; 232 # -DHAVE_GETTEXT=0 to avoid using gettext 233 # -DHAVE_INCOMPATIBLE_CTIME_R if your system's time.h declares 234 # ctime_r and asctime_r incompatibly with POSIX.1-2017 and earlier 235 # (Solaris when _POSIX_PTHREAD_SEMANTICS is not defined). 236 # -DHAVE_INTTYPES_H=0 if <inttypes.h> does not work*+ 237 # -DHAVE_LINK=0 if your system lacks a link function 238 # -DHAVE_LOCALTIME_R=0 if your system lacks a localtime_r function 239 # -DHAVE_LOCALTIME_RZ=0 if you do not want zdump to use localtime_rz 240 # localtime_rz can make zdump significantly faster, but is nonstandard. 241 # -DHAVE_MALLOC_ERRNO=0 if malloc etc. do not set errno on failure. 242 # -DHAVE_POSIX_DECLS=0 if your system's include files do not declare 243 # functions like 'link' or variables like 'tzname' required by POSIX 244 # -DHAVE_SETENV=0 if your system lacks the setenv function 245 # -DHAVE_SNPRINTF=0 if your system lacks the snprintf function+ 246 # -DHAVE_STDCKDINT_H=0 if neither <stdckdint.h> nor substitutes like 247 # __builtin_add_overflow work* 248 # -DHAVE_STDINT_H=0 if <stdint.h> does not work*+ 249 # -DHAVE_STRFTIME_L if <time.h> declares locale_t and strftime_l 250 # -DHAVE_STRDUP=0 if your system lacks the strdup function 251 # -DHAVE_STRTOLL=0 if your system lacks the strtoll function+ 252 # -DHAVE_SYMLINK=0 if your system lacks the symlink function 253 # -DHAVE_SYS_STAT_H=0 if <sys/stat.h> does not work* 254 # -DHAVE_TZSET=0 if your system lacks a tzset function 255 # -DHAVE_UNISTD_H=0 if <unistd.h> does not work* 256 # -DHAVE_UTMPX_H=0 if <utmpx.h> does not work* 257 # -Dlocale_t=XXX if your system uses XXX instead of locale_t 258 # -DMKTIME_MIGHT_OVERFLOW if mktime might fail due to time_t overflow 259 # -DPORT_TO_C89 if tzcode should also run on mostly-C89 platforms+ 260 # Typically it is better to use a later standard. For example, 261 # with GCC 4.9.4 (2016), prefer '-std=gnu11' to '-DPORT_TO_C89'. 262 # Even with -DPORT_TO_C89, the code needs at least one C99 263 # feature (integers at least 64 bits wide) and maybe more. 264 # -DRESERVE_STD_EXT_IDS if your platform reserves standard identifiers 265 # with external linkage, e.g., applications cannot define 'localtime'. 266 # -Dssize_t=int on hosts like MS-Windows that lack ssize_t 267 # -DSUPPORT_C89=0 if the tzcode library should not support C89 callers 268 # Although -DSUPPORT_C89=0 might work around latent bugs in callers, 269 # it does not conform to POSIX. 270 # -DSUPPORT_POSIX2008 if the library should support older POSIX callers+ 271 # However, this might cause problems in POSIX.1-2024-or-later callers. 272 # -DSUPPRESS_TZDIR to not prepend TZDIR to file names; this has 273 # security implications and is not recommended for general use 274 # -DTHREAD_SAFE to make localtime.c thread-safe, as POSIX requires; 275 # not needed by the main-program tz code, which is single-threaded. 276 # Append other compiler flags as needed, e.g., -pthread on GNU/Linux. 277 # -Dtime_tz=\"T\" to use T as the time_t type, rather than the system time_t 278 # This is intended for internal use only; it mangles external names. 279 # -DTZ_DOMAIN=\"foo\" to use "foo" for gettext domain name; default is "tz" 280 # -DTZ_DOMAINDIR=\"/path\" to use "/path" for gettext directory; 281 # the default is system-supplied, typically "/usr/lib/locale" 282 # -DTZDEFRULESTRING=\",date/time,date/time\" to default to the specified 283 # DST transitions for proleptic format TZ strings lacking them, 284 # in the usual case where POSIXRULES is '-'. If not specified, 285 # TZDEFRULESTRING defaults to US rules for future DST transitions. 286 # This mishandles some past timestamps, as US DST rules have changed. 287 # It also mishandles settings like TZ='EET-2EEST' for eastern Europe, 288 # as Europe and US DST rules differ. 289 # -DTZNAME_MAXIMUM=N to limit time zone abbreviations to N bytes (default 254) 290 # -DUNINIT_TRAP if reading uninitialized storage can cause problems 291 # other than simply getting garbage data 292 # -DUSE_LTZ=0 to build zdump with the system time zone library 293 # Also set TZDOBJS=zdump.o and CHECK_TIME_T_ALTERNATIVES= below. 294 # -DZIC_BLOAT_DEFAULT=\"fat\" to default zic's -b option to "fat", and 295 # similarly for "slim". Fat TZif files work around incompatibilities 296 # and bugs in some TZif readers, notably older ones that 297 # ignore or otherwise mishandle 64-bit data in TZif files; 298 # however, fat TZif files may trigger bugs in newer TZif readers. 299 # Slim TZif files are more efficient, and are the default. 300 # -DZIC_MAX_ABBR_LEN_WO_WARN=3 301 # (or some other number) to set the maximum time zone abbreviation length 302 # that zic will accept without a warning (the default is 6) 303 # -g to generate symbolic debugging info 304 # -Idir to include from directory 'dir' 305 # -O0 to disable optimization; other -O options to enable more optimization 306 # -Uname to remove any definition of the macro 'name' 307 # $(GCC_DEBUG_FLAGS) if you are using recent GCC and want lots of checking 308 # 309 # * Options marked "*" can be omitted if your compiler is C23 compatible. 310 # * Options marked "+" are obsolescent and are planned to be removed 311 # once the code assumes C99 or later (say in the year 2029) 312 # and POSIX.1-2024 or later (say in the year 2034). 313 # 314 # Select instrumentation via "make GCC_INSTRUMENT='whatever'". 315 GCC_INSTRUMENT = \ 316 -fsanitize=undefined -fsanitize-address-use-after-scope \ 317 -fsanitize-undefined-trap-on-error -fstack-protector 318 # Omit -fanalyzer from GCC_DEBUG_FLAGS, as it makes GCC too slow. 319 GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 \ 320 $(GCC_INSTRUMENT) \ 321 -Wall -Wextra \ 322 -Walloc-size-larger-than=100000 -Warray-bounds=2 \ 323 -Wbad-function-cast -Wbidi-chars=any,ucn -Wcast-align=strict -Wcast-qual \ 324 -Wdate-time \ 325 -Wdeclaration-after-statement -Wdouble-promotion \ 326 -Wduplicated-branches -Wduplicated-cond -Wflex-array-member-not-at-end \ 327 -Wformat=2 -Wformat-overflow=2 -Wformat-signedness -Wformat-truncation \ 328 -Wimplicit-fallthrough=5 -Winit-self -Wlogical-op \ 329 -Wmissing-declarations -Wmissing-prototypes \ 330 -Wmissing-variable-declarations -Wnested-externs \ 331 -Wnull-dereference \ 332 -Wold-style-definition -Woverlength-strings -Wpointer-arith \ 333 -Wshadow -Wshift-overflow=2 -Wstrict-overflow \ 334 -Wstrict-prototypes -Wstringop-overflow=4 \ 335 -Wstringop-truncation -Wsuggest-attribute=cold \ 336 -Wsuggest-attribute=const -Wsuggest-attribute=format \ 337 -Wsuggest-attribute=malloc \ 338 -Wsuggest-attribute=noreturn -Wsuggest-attribute=pure \ 339 -Wtrampolines -Wundef -Wunused-macros -Wuse-after-free=3 \ 340 -Wvariadic-macros -Wvla -Wwrite-strings \ 341 -Wno-format-nonliteral -Wno-sign-compare -Wno-type-limits 342 # 343 # If your system has a "GMT offset" field in its "struct tm"s 344 # (or if you decide to add such a field in your system's "time.h" file), 345 # add the name to a define such as 346 # -DTM_GMTOFF=tm_gmtoff 347 # to the end of the "CFLAGS=" line. If not defined, the code attempts to 348 # guess TM_GMTOFF from other macros; define NO_TM_GMTOFF to suppress this. 349 # Similarly, if your system has a "zone abbreviation" field, define 350 # -DTM_ZONE=tm_zone 351 # and define NO_TM_ZONE to suppress any guessing. 352 # Although POSIX.1-2024 requires these fields and they are widely available 353 # on GNU/Linux and BSD systems, some older systems lack them. 354 # 355 # The next batch of options control support for external variables 356 # exported by tzcode. In practice these variables are less useful 357 # than TM_GMTOFF and TM_ZONE. However, most of them are standardized. 358 # # 359 # # To omit or support the external variable "tzname", add one of: 360 # # -DHAVE_TZNAME=0 # do not support "tzname" 361 # # -DHAVE_TZNAME=1 # support "tzname", which is defined by system library 362 # # -DHAVE_TZNAME=2 # support and define "tzname" 363 # # to the "CFLAGS=" line. Although "tzname" is required by POSIX.1-1988 364 # # and later, its contents are unspecified if you use a geographical TZ 365 # # and the variable is planned to be removed in a future POSIX edition. 366 # # If not defined, the code attempts to guess HAVE_TZNAME from other macros. 367 # # Warning: unless time_tz is also defined, HAVE_TZNAME=1 can cause 368 # # crashes when combined with some platforms' standard libraries, 369 # # presumably due to memory allocation issues. 370 # # 371 # # To omit or support the external variables "timezone" and "daylight", add 372 # # -DUSG_COMPAT=0 # do not support 373 # # -DUSG_COMPAT=1 # support, and variables are defined by system library 374 # # -DUSG_COMPAT=2 # support and define variables 375 # # to the "CFLAGS=" line; "timezone" and "daylight" are inspired by Unix 376 # # Systems Group code and are required by POSIX.1-2008 and later (with XSI), 377 # # although their contents are unspecified if you use a geographical TZ 378 # # and the variables are planned to be removed in a future edition of POSIX. 379 # # If not defined, the code attempts to guess USG_COMPAT from other macros. 380 # # 381 # # To support the external variable "altzone", add 382 # # -DALTZONE=0 # do not support 383 # # -DALTZONE=1 # support "altzone", which is defined by system library 384 # # -DALTZONE=2 # support and define "altzone" 385 # # to the end of the "CFLAGS=" line; although "altzone" appeared in 386 # # System V Release 3.1 it has not been standardized. 387 # # If not defined, the code attempts to guess ALTZONE from other macros. 388 # 389 # If you want functions that were inspired by early versions of X3J11's work, 390 # add 391 # -DSTD_INSPIRED 392 # to the end of the "CFLAGS=" line. This arranges for the following 393 # functions to be added to the time conversion library. 394 # "offtime" is like "gmtime" except that it accepts a second (long) argument 395 # that gives an offset to add to the time_t when converting it. 396 # I.e., "offtime" is like calling "localtime_rz" with a fixed-offset zone. 397 # "timelocal" is nearly equivalent to "mktime". 398 # "timeoff" is like "timegm" except that it accepts a second (long) argument 399 # that gives an offset to use when converting to a time_t. 400 # I.e., "timeoff" is like calling "mktime_z" with a fixed-offset zone. 401 # "posix2time" and "time2posix" are described in an included manual page. 402 # X3J11's work does not describe any of these functions. 403 # These functions may well disappear in future releases of the time 404 # conversion package. 405 # 406 # If you don't want functions that were inspired by NetBSD, add 407 # -DNETBSD_INSPIRED=0 408 # to the end of the "CFLAGS=" line. Otherwise, the functions 409 # "localtime_rz", "mktime_z", "tzalloc", and "tzfree" are added to the 410 # time library, and if STD_INSPIRED is also defined to nonzero the functions 411 # "posix2time_z" and "time2posix_z" are added as well. 412 # The functions ending in "_z" (or "_rz") are like their unsuffixed 413 # (or suffixed-by-"_r") counterparts, except with an extra first 414 # argument of opaque type timezone_t that specifies the timezone. 415 # "tzalloc" allocates a timezone_t value, and "tzfree" frees it. 416 # 417 # If you want to allocate state structures in localtime, add 418 # -DALL_STATE 419 # to the end of the "CFLAGS=" line. Storage is obtained by calling malloc. 420 # 421 # NIST-PCTS:151-2, Version 1.4, (1993-12-03) is a test suite put 422 # out by the National Institute of Standards and Technology 423 # which claims to test C and POSIX conformance. If you want to pass PCTS, add 424 # -DPCTS 425 # to the end of the "CFLAGS=" line. 426 # 427 # If you want strict compliance with XPG4 as of 1994-04-09, add 428 # -DXPG4_1994_04_09 429 # to the end of the "CFLAGS=" line. This causes "strftime" to always return 430 # 53 as a week number (rather than 52 or 53) for January days before 431 # January's first Monday when a "%V" format is used and January 1 432 # falls on a Friday, Saturday, or Sunday. 433 # 434 # POSIX says CFLAGS defaults to "-O 1". 435 # Uncomment the following line and edit its contents as needed. 436 437 #CFLAGS= -O 1 438 439 440 # The name of a POSIX-like library archiver, its flags, C compiler, 441 # linker flags, and 'make' utility. Ordinarily the defaults suffice. 442 # The commented-out values are the defaults specified by POSIX.1-2024. 443 #AR = ar 444 #ARFLAGS = -rv 445 #CC = c17 446 #LDFLAGS = 447 #MAKE = make 448 449 # Where to fetch leap-seconds.list from. 450 leaplist_URI = \ 451 https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list 452 # The file is generated by the IERS Earth Orientation Centre, in Paris. 453 leaplist_TZ = Europe/Paris 454 455 # The zic command and its arguments. 456 457 zic= ./zic 458 ZIC= $(zic) $(ZFLAGS) 459 460 # To shrink the size of installed TZif files, 461 # append "-r @N" to omit data before N-seconds-after-the-Epoch. 462 # To grow the files and work around bugs in older applications, 463 # possibly at the expense of introducing bugs in newer ones, 464 # append "-b fat"; see ZIC_BLOAT_DEFAULT above. 465 # See the zic man page for more about -b and -r. 466 ZFLAGS= 467 468 # How to use zic to install TZif files. 469 470 ZIC_INSTALL= $(ZIC) -d '$(DESTDIR)$(TZDIR)' 471 472 # The name of a POSIX-compliant 'awk' on your system. 473 # mawk 1.3.3 and Solaris 10 /usr/bin/awk do not work. 474 # Also, it is better (though not essential) if 'awk' supports UTF-8, 475 # and unfortunately mawk and busybox awk do not support UTF-8. 476 # Try AWK=gawk or AWK=nawk if your awk has the abovementioned problems. 477 AWK= awk 478 479 # The full path name of a POSIX-compliant shell, preferably one that supports 480 # the Korn shell's 'select' statement as an extension. 481 # These days, Bash is the most popular. 482 # It should be OK to set this to /bin/sh, on platforms where /bin/sh 483 # lacks 'select' or doesn't completely conform to POSIX, but /bin/bash 484 # is typically nicer if it works. 485 KSHELL= /bin/bash 486 487 # Name of curl <https://curl.haxx.se/>, used for HTML validation 488 # and to fetch leap-seconds.list from upstream. 489 # Set CURL=: to disable use of the Internet. 490 CURL= curl 491 492 # Name of GNU Privacy Guard <https://gnupg.org/>, used to sign distributions. 493 GPG= gpg 494 495 # This expensive test requires USE_LTZ. 496 # To suppress it, define this macro to be empty. 497 CHECK_TIME_T_ALTERNATIVES = check_time_t_alternatives 498 499 # SAFE_CHAR is a regular expression that matches a safe character. 500 # Some parts of this distribution are limited to safe characters; 501 # others can use any UTF-8 character. 502 # For now, the safe characters are a safe subset of ASCII. 503 # The caller must set the shell variable 'sharp' to the character '#', 504 # since Makefile macros cannot contain '#'. 505 # TAB_CHAR is a single tab character, in single quotes. 506 TAB_CHAR= ' ' 507 SAFE_CHARSET1= $(TAB_CHAR)' !\"'$$sharp'$$%&'\''()*+,./0123456789:;<=>?@' 508 SAFE_CHARSET2= 'ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\^_`' 509 SAFE_CHARSET3= 'abcdefghijklmnopqrstuvwxyz{|}~' 510 SAFE_CHARSET= $(SAFE_CHARSET1)$(SAFE_CHARSET2)$(SAFE_CHARSET3) 511 SAFE_CHAR= '[]'$(SAFE_CHARSET)'-]' 512 513 # These non-alphabetic, non-ASCII printable characters are Latin-1, 514 # and so are likely displayable even in editors like XEmacs 21 515 # that have limited display capabilities. 516 UNUSUAL_OK_LATIN_1 = 517 # Non-ASCII non-letters that OK_CHAR allows, as these characters are 518 # useful in commentary. 519 UNUSUAL_OK_CHARSET= $(UNUSUAL_OK_LATIN_1) 520 521 # Put this in a bracket expression to match spaces. 522 s = [:space:] 523 524 # OK_CHAR matches any character allowed in the distributed files. 525 # This is the same as SAFE_CHAR, except that UNUSUAL_OK_CHARSET and 526 # multibyte letters are also allowed so that commentary can contain a 527 # few safe symbols and people's names and can quote non-English sources. 528 # Other non-letters are limited to ASCII renderings for the 529 # convenience of maintainers using XEmacs 21.5.34, which by default 530 # mishandles Unicode characters U+0100 and greater. 531 OK_CHAR= '[][:alpha:]$(UNUSUAL_OK_CHARSET)'$(SAFE_CHARSET)'-]' 532 533 # SAFE_LINE matches a line of safe characters. 534 # SAFE_SHARP_LINE is similar, except any OK character can follow '#'; 535 # this is so that comments can contain non-ASCII characters. 536 # OK_LINE matches a line of OK characters. 537 SAFE_LINE= '^'$(SAFE_CHAR)'*$$' 538 SAFE_SHARP_LINE='^'$(SAFE_CHAR)'*('$$sharp$(OK_CHAR)'*)?$$' 539 OK_LINE= '^'$(OK_CHAR)'*$$' 540 541 # Flags to give 'tar' when making a distribution. 542 # Try to use flags appropriate for GNU tar. 543 GNUTARFLAGS= --format=pax --pax-option=delete=atime,delete=ctime \ 544 --numeric-owner --owner=0 --group=0 \ 545 --mode=go+u,go-w --sort=name 546 SETUP_TAR= \ 547 export LC_ALL=C && \ 548 if tar $(GNUTARFLAGS) --version >/dev/null 2>&1; then \ 549 TAR='tar $(GNUTARFLAGS)'; \ 550 else \ 551 TAR=tar; \ 552 fi 553 554 # Flags to give 'gzip' when making a distribution. 555 GZIPFLAGS= -9n 556 557 # When comparing .tzs files, use GNU diff's -F'^TZ=' option if supported. 558 # This makes it easier to see which Zone has been affected. 559 SETUP_DIFF_TZS = \ 560 if diff -u -F'^TZ=' - - <>/dev/null >&0 2>&1; then \ 561 DIFF_TZS='diff -u -F^TZ='; \ 562 else \ 563 DIFF_TZS='diff -u'; \ 564 fi 565 566 # ':' on typical hosts; 'ranlib' on the ancient hosts that still need ranlib. 567 RANLIB= : 568 569 # POSIX prohibits defining or using SHELL. However, csh users on systems 570 # that use the user shell for Makefile commands may need to define SHELL. 571 #SHELL= /bin/sh 572 573 # End of macros that one plausibly might want to tailor. 574 ############################################################################### 575 576 577 TZCOBJS= zic.o 578 TZDOBJS= zdump.o localtime.o strftime.o 579 DATEOBJS= date.o localtime.o strftime.o 580 LIBSRCS= localtime.c asctime.c difftime.c strftime.c 581 LIBOBJS= localtime.o asctime.o difftime.o strftime.o 582 HEADERS= tzfile.h private.h 583 NONLIBSRCS= zic.c zdump.c 584 NEWUCBSRCS= date.c 585 SOURCES= $(HEADERS) $(LIBSRCS) $(NONLIBSRCS) $(NEWUCBSRCS) \ 586 tzselect.ksh workman.sh 587 MANS= newctime.3 newstrftime.3 newtzset.3 time2posix.3 \ 588 tzfile.5 tzselect.8 zic.8 zdump.8 589 MANTXTS= newctime.3.txt newstrftime.3.txt newtzset.3.txt \ 590 time2posix.3.txt \ 591 tzfile.5.txt tzselect.8.txt zic.8.txt zdump.8.txt \ 592 date.1.txt 593 COMMON= calendars CONTRIBUTING LICENSE Makefile \ 594 NEWS README SECURITY theory.html version 595 WEB_PAGES= tz-art.html tz-how-to.html tz-link.html 596 CHECK_WEB_PAGES=theory.ck tz-art.ck tz-how-to.ck tz-link.ck 597 DOCS= $(MANS) date.1 $(MANTXTS) $(WEB_PAGES) 598 PRIMARY_YDATA= africa antarctica asia australasia \ 599 europe northamerica southamerica 600 YDATA= $(PRIMARY_YDATA) etcetera 601 NDATA= factory 602 TDATA_TO_CHECK= $(YDATA) $(NDATA) backward 603 TDATA= $(YDATA) $(NDATA) $(BACKWARD) 604 ZONETABLES= zone.tab zone1970.tab zonenow.tab 605 TABDATA= iso3166.tab $(TZDATA_TEXT) $(ZONETABLES) 606 LEAP_DEPS= leapseconds.awk leap-seconds.list 607 TZDATA_ZI_DEPS= ziguard.awk zishrink.awk version $(TDATA) \ 608 $(PACKRATDATA) $(PACKRATLIST) 609 DSTDATA_ZI_DEPS= ziguard.awk $(TDATA) $(PACKRATDATA) $(PACKRATLIST) 610 DATA= $(TDATA_TO_CHECK) backzone iso3166.tab leap-seconds.list \ 611 leapseconds $(ZONETABLES) 612 AWK_SCRIPTS= checklinks.awk checknow.awk checktab.awk leapseconds.awk \ 613 ziguard.awk zishrink.awk 614 MISC= $(AWK_SCRIPTS) 615 TZS_YEAR= 2050 616 TZS_CUTOFF_FLAG= -c $(TZS_YEAR) 617 TZS= to$(TZS_YEAR).tzs 618 TZS_NEW= to$(TZS_YEAR)new.tzs 619 TZS_DEPS= $(YDATA) localtime.c private.h \ 620 strftime.c tzfile.h zdump.c zic.c 621 TZDATA_DIST = $(COMMON) $(DATA) $(MISC) 622 # EIGHT_YARDS is just a yard short of the whole ENCHILADA. 623 EIGHT_YARDS = $(TZDATA_DIST) $(DOCS) $(SOURCES) tzdata.zi 624 ENCHILADA = $(EIGHT_YARDS) $(TZS) 625 626 # Consult these files when deciding whether to rebuild the 'version' file. 627 # This list is not the same as the output of 'git ls-files', since 628 # .gitignore is not distributed. 629 VERSION_DEPS= \ 630 calendars CONTRIBUTING LICENSE Makefile NEWS README SECURITY \ 631 africa antarctica asctime.c asia australasia \ 632 backward backzone \ 633 checklinks.awk checknow.awk checktab.awk \ 634 date.1 date.c difftime.c \ 635 etcetera europe factory iso3166.tab \ 636 leap-seconds.list leapseconds.awk localtime.c \ 637 newctime.3 newstrftime.3 newtzset.3 northamerica \ 638 private.h southamerica strftime.c theory.html \ 639 time2posix.3 tz-art.html tz-how-to.html tz-link.html \ 640 tzfile.5 tzfile.h tzselect.8 tzselect.ksh \ 641 workman.sh zdump.8 zdump.c zic.8 zic.c \ 642 ziguard.awk zishrink.awk \ 643 zone.tab zone1970.tab zonenow.tab 644 645 all: tzselect zic zdump libtz.a $(TABDATA) \ 646 vanguard.zi main.zi rearguard.zi 647 648 ALL: all date $(ENCHILADA) 649 650 install: all $(DATA) $(REDO) $(MANS) 651 mkdir -p '$(DESTDIR)$(BINDIR)' \ 652 '$(DESTDIR)$(ZDUMPDIR)' '$(DESTDIR)$(ZICDIR)' \ 653 '$(DESTDIR)$(LIBDIR)' \ 654 '$(DESTDIR)$(MANDIR)/man3' '$(DESTDIR)$(MANDIR)/man5' \ 655 '$(DESTDIR)$(MANDIR)/man8' 656 $(ZIC_INSTALL) -l $(LOCALTIME) \ 657 -p $(POSIXRULES) \ 658 -t '$(DESTDIR)$(TZDEFAULT)' 659 cp -f $(TABDATA) '$(DESTDIR)$(TZDIR)/.' 660 cp tzselect '$(DESTDIR)$(BINDIR)/.' 661 cp zdump '$(DESTDIR)$(ZDUMPDIR)/.' 662 cp zic '$(DESTDIR)$(ZICDIR)/.' 663 cp libtz.a '$(DESTDIR)$(LIBDIR)/.' 664 $(RANLIB) '$(DESTDIR)$(LIBDIR)/libtz.a' 665 cp -f newctime.3 newtzset.3 '$(DESTDIR)$(MANDIR)/man3/.' 666 cp -f tzfile.5 '$(DESTDIR)$(MANDIR)/man5/.' 667 cp -f tzselect.8 zdump.8 zic.8 '$(DESTDIR)$(MANDIR)/man8/.' 668 669 INSTALL: ALL install date.1 670 mkdir -p '$(DESTDIR)$(BINDIR)' '$(DESTDIR)$(MANDIR)/man1' 671 cp date '$(DESTDIR)$(BINDIR)/.' 672 cp -f date.1 '$(DESTDIR)$(MANDIR)/man1/.' 673 674 # Calculate version number from git, if available. 675 # Otherwise, use $(VERSION) unless it is "unknown" and there is already 676 # a 'version' file, in which case reuse the existing 'version' contents 677 # and append "-dirty" if the contents do not already end in "-dirty". 678 version: $(VERSION_DEPS) 679 { (type git) >/dev/null 2>&1 && \ 680 V=$$(git describe --match '[0-9][0-9][0-9][0-9][a-z]*' \ 681 --abbrev=7 --dirty) || \ 682 if test '$(VERSION)' = unknown && read -r V <$@; then \ 683 V=$${V%-dirty}-dirty; \ 684 else \ 685 V='$(VERSION)'; \ 686 fi; } && \ 687 printf '%s\n' "$$V" >$@.out 688 mv $@.out $@ 689 690 # These files can be tailored by setting BACKWARD, PACKRATDATA, PACKRATLIST. 691 vanguard.zi main.zi rearguard.zi: $(DSTDATA_ZI_DEPS) 692 $(AWK) \ 693 -v DATAFORM=$(@:.zi=) \ 694 -v PACKRATDATA='$(PACKRATDATA)' \ 695 -v PACKRATLIST='$(PACKRATLIST)' \ 696 -f ziguard.awk \ 697 $(TDATA) $(PACKRATDATA) >$@.out 698 mv $@.out $@ 699 # This file has a version comment that attempts to capture any tailoring 700 # via BACKWARD, DATAFORM, PACKRATDATA, PACKRATLIST, and REDO. 701 tzdata.zi: $(DATAFORM).zi version zishrink.awk 702 read -r version <version && \ 703 LC_ALL=C $(AWK) \ 704 -v dataform='$(DATAFORM)' \ 705 -v deps='$(DSTDATA_ZI_DEPS) zishrink.awk' \ 706 -v redo='$(REDO)' \ 707 -v version="$$version" \ 708 -f zishrink.awk \ 709 $(DATAFORM).zi >$@.out 710 mv $@.out $@ 711 712 tzdir.h: 713 printf '%s\n' >$@.out \ 714 '#ifndef TZDEFAULT' \ 715 '# define TZDEFAULT "$(TZDEFAULT)" /* default zone */' \ 716 '#endif' \ 717 '#ifndef TZDIR' \ 718 '# define TZDIR "$(TZDIR)" /* TZif directory */' \ 719 '#endif' 720 mv $@.out $@ 721 722 version.h: version 723 read -r VERSION <version && printf '%s\n' \ 724 'static char const PKGVERSION[]="($(PACKAGE)) ";' \ 725 "static char const TZVERSION[]=\"$$VERSION\";" \ 726 'static char const REPORT_BUGS_TO[]="$(BUGEMAIL)";' \ 727 >$@.out 728 mv $@.out $@ 729 730 zdump: $(TZDOBJS) 731 $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZDOBJS) $(LDLIBS) 732 733 zic: $(TZCOBJS) 734 $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZCOBJS) $(LDLIBS) 735 736 leapseconds: $(LEAP_DEPS) 737 $(AWK) -v EXPIRES_LINE=$(EXPIRES_LINE) \ 738 -f leapseconds.awk leap-seconds.list >$@.out 739 mv $@.out $@ 740 741 # Awk script to extract a Git-style author from leap-seconds.list comments. 742 EXTRACT_AUTHOR = \ 743 author_line { sub(/^.[[:space:]]*/, ""); \ 744 sub(/:[[:space:]]*/, " <"); \ 745 printf "%s>\n", $$0; \ 746 success = 1; \ 747 exit \ 748 } \ 749 /Questions or comments to:/ { author_line = 1 } \ 750 END { exit !success } 751 752 # Fetch leap-seconds.list from upstream. 753 fetch-leap-seconds.list: 754 $(CURL) -OR $(leaplist_URI) 755 756 # Fetch leap-seconds.list from upstream and commit it to the local repository. 757 commit-leap-seconds.list: fetch-leap-seconds.list 758 author=$$($(AWK) '$(EXTRACT_AUTHOR)' leap-seconds.list) && \ 759 date=$$(TZ=$(leaplist_TZ) stat -c%y leap-seconds.list) && \ 760 git commit --author="$$author" --date="$$date" -m'make $@' \ 761 leap-seconds.list 762 763 # Arguments to pass to submakes. 764 # They can be overridden by later submake arguments. 765 INSTALLARGS = \ 766 BACKWARD='$(BACKWARD)' \ 767 DESTDIR='$(DESTDIR)' \ 768 PACKRATDATA='$(PACKRATDATA)' \ 769 PACKRATLIST='$(PACKRATLIST)' \ 770 TZDEFAULT='$(TZDEFAULT)' \ 771 TZDIR='$(TZDIR)' \ 772 ZIC='$(ZIC)' 773 774 INSTALL_DATA_DEPS = zic leapseconds tzdata.zi 775 776 posix_only: $(INSTALL_DATA_DEPS) 777 $(ZIC_INSTALL) tzdata.zi 778 779 right_only: $(INSTALL_DATA_DEPS) 780 $(ZIC_INSTALL) -L leapseconds tzdata.zi 781 782 # In earlier versions of this makefile, the other two directories were 783 # subdirectories of $(TZDIR). However, this led to configuration errors. 784 # For example, with posix_right under the earlier scheme, 785 # TZ='right/Australia/Adelaide' got you localtime with leap seconds, 786 # but gmtime without leap seconds, which led to problems with applications 787 # like sendmail that subtract gmtime from localtime. 788 # Therefore, the other two directories are now siblings of $(TZDIR). 789 # You must replace all of $(TZDIR) to switch from not using leap seconds 790 # to using them, or vice versa. 791 right_posix: right_only 792 rm -fr '$(DESTDIR)$(TZDIR)-leaps' 793 ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-leaps' || \ 794 $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only 795 $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only 796 797 posix_right: posix_only 798 rm -fr '$(DESTDIR)$(TZDIR)-posix' 799 ln -s '$(TZDIR_BASENAME)' '$(DESTDIR)$(TZDIR)-posix' || \ 800 $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-posix' posix_only 801 $(MAKE) $(INSTALLARGS) TZDIR='$(TZDIR)-leaps' right_only 802 803 zones: $(REDO) 804 805 # dummy.zd is not a real file; it is mentioned here only so that the 806 # top-level 'make' does not have a syntax error. 807 ZDS = dummy.zd 808 # Rule used only by submakes invoked by the $(TZS_NEW) rule. 809 # It is separate so that GNU 'make -j' can run instances in parallel. 810 $(ZDS): zdump 811 ./zdump -i $(TZS_CUTOFF_FLAG) "$$PWD/$(@:.zd=)" >$@ 812 813 TZS_NEW_DEPS = tzdata.zi zdump zic 814 $(TZS_NEW): $(TZS_NEW_DEPS) 815 rm -fr tzs$(TZS_YEAR).dir 816 mkdir tzs$(TZS_YEAR).dir 817 $(zic) -d tzs$(TZS_YEAR).dir tzdata.zi 818 $(AWK) '/^L/{print "Link\t" $$2 "\t" $$3}' \ 819 tzdata.zi | LC_ALL=C sort >$@.out 820 x=$$($(AWK) '/^Z/{print "tzs$(TZS_YEAR).dir/" $$2 ".zd"}' \ 821 tzdata.zi \ 822 | LC_ALL=C sort -t . -k 2,2) && \ 823 set x $$x && \ 824 shift && \ 825 ZDS=$$* && \ 826 $(MAKE) TZS_CUTOFF_FLAG="$(TZS_CUTOFF_FLAG)" \ 827 ZDS="$$ZDS" $$ZDS && \ 828 sed 's,^TZ=".*\.dir/,TZ=",' $$ZDS >>$@.out 829 rm -fr tzs$(TZS_YEAR).dir 830 mv $@.out $@ 831 832 # If $(TZS) exists but 'make tzs.ck' fails, a maintainer should inspect the 833 # failed output and fix the inconsistency, perhaps by running 'make force_tzs'. 834 $(TZS): 835 touch $@ 836 837 force_tzs: $(TZS_NEW) 838 cp $(TZS_NEW) $(TZS) 839 840 libtz.a: $(LIBOBJS) 841 rm -f $@ 842 $(AR) $(ARFLAGS) $@ $(LIBOBJS) 843 $(RANLIB) $@ 844 845 date: $(DATEOBJS) 846 $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(DATEOBJS) $(LDLIBS) 847 848 tzselect: tzselect.ksh version 849 read -r VERSION <version && sed \ 850 -e "s'#!/bin/bash'#!"'$(KSHELL)'\' \ 851 -e s\''\(AWK\)=[^}]*'\''\1=\'\''$(AWK)\'\'\' \ 852 -e s\''\(PKGVERSION\)=.*'\''\1=\'\''($(PACKAGE)) \'\'\' \ 853 -e s\''\(REPORT_BUGS_TO\)=.*'\''\1=\'\''$(BUGEMAIL)\'\'\' \ 854 -e s\''\(TZDIR\)=[^}]*'\''\1=\'\''$(TZDIR)\'\'\' \ 855 -e s\''\(TZVERSION\)=.*'\''\1=\'"'$$VERSION\\''" \ 856 <$@.ksh >$@.out 857 chmod +x $@.out 858 mv $@.out $@ 859 860 check: check_mild back.ck now.ck 861 check_mild: check_web check_zishrink \ 862 character-set.ck white-space.ck links.ck mainguard.ck \ 863 name-lengths.ck slashed-abbrs.ck sorted.ck \ 864 tables.ck ziguard.ck tzs.ck 865 866 # True if UTF8_LOCALE does not work; 867 # otherwise, false but with LC_ALL set to $(UTF8_LOCALE). 868 UTF8_LOCALE_MISSING = \ 869 { test ! '$(UTF8_LOCALE)' \ 870 || ! printf 'A\304\200B\n' \ 871 | LC_ALL='$(UTF8_LOCALE)' grep -q '^A.B$$' >/dev/null 2>&1 \ 872 || { export LC_ALL='$(UTF8_LOCALE)'; false; }; } 873 874 character-set.ck: $(ENCHILADA) 875 $(UTF8_LOCALE_MISSING) || { \ 876 sharp='#' && \ 877 ! grep -Env $(SAFE_LINE) $(MANS) date.1 $(MANTXTS) \ 878 $(MISC) $(SOURCES) $(WEB_PAGES) \ 879 CONTRIBUTING LICENSE README SECURITY \ 880 version tzdata.zi && \ 881 ! grep -Env $(SAFE_LINE)'|^UNUSUAL_OK_'$(OK_CHAR)'*$$' \ 882 Makefile && \ 883 ! grep -Env $(SAFE_SHARP_LINE) $(TDATA_TO_CHECK) backzone \ 884 leapseconds zone.tab && \ 885 ! grep -Env $(OK_LINE) $(ENCHILADA); \ 886 } 887 touch $@ 888 889 white-space.ck: $(ENCHILADA) 890 $(UTF8_LOCALE_MISSING) || { \ 891 enchilada='$(ENCHILADA)' && \ 892 patfmt=' \t|[\f\r\v]' && pat=$$(printf "$$patfmt\\n") && \ 893 ! grep -En "$$pat|[$s]\$$" \ 894 $${enchilada%leap-seconds.list*} \ 895 $${enchilada#*leap-seconds.list}; \ 896 } 897 touch $@ 898 899 PRECEDES_FILE_NAME = ^(Zone|Link[$s]+[^$s]+)[$s]+ 900 FILE_NAME_COMPONENT_TOO_LONG = $(PRECEDES_FILE_NAME)[^$s]*[^/$s]{15} 901 902 name-lengths.ck: $(TDATA_TO_CHECK) backzone 903 :;! grep -En '$(FILE_NAME_COMPONENT_TOO_LONG)' \ 904 $(TDATA_TO_CHECK) backzone 905 touch $@ 906 907 mainguard.ck: main.zi 908 test '$(PACKRATLIST)' || \ 909 cat $(TDATA) $(PACKRATDATA) | diff -u - main.zi 910 touch $@ 911 912 PRECEDES_STDOFF = ^(Zone[$s]+[^$s]+)?[$s]+ 913 STDOFF = [-+]?[0-9:.]+ 914 RULELESS_SAVE = (-|$(STDOFF)[sd]?) 915 RULELESS_SLASHED_ABBRS = \ 916 $(PRECEDES_STDOFF)$(STDOFF)[$s]+$(RULELESS_SAVE)[$s]+[^$s]*/ 917 918 slashed-abbrs.ck: $(TDATA_TO_CHECK) 919 :;! grep -En '$(RULELESS_SLASHED_ABBRS)' $(TDATA_TO_CHECK) 920 touch $@ 921 922 CHECK_CC_LIST = { n = split($$1,a,/,/); for (i=2; i<=n; i++) print a[1], a[i]; } 923 924 sorted.ck: backward backzone 925 $(AWK) '/^Link/ {printf "%.5d %s\n", g, $$3} !/./ {g++}' \ 926 backward | LC_ALL=C sort -cu 927 $(AWK) '/^Zone.*\// {print $$2}' backzone | LC_ALL=C sort -cu 928 touch $@ 929 930 back.ck: checklinks.awk $(TDATA_TO_CHECK) 931 $(AWK) \ 932 -v DATAFORM=$(DATAFORM) \ 933 -v backcheck=backward \ 934 -f checklinks.awk $(TDATA_TO_CHECK) 935 touch $@ 936 937 links.ck: checklinks.awk tzdata.zi 938 $(AWK) \ 939 -v DATAFORM=$(DATAFORM) \ 940 -f checklinks.awk tzdata.zi 941 touch $@ 942 943 # Check timestamps from now through 28 years from now, to make sure 944 # that zonenow.tab contains all sequences of planned timestamps, 945 # without any duplicate sequences. In theory this might require 946 # 2800+ years but that would take a long time to check. 947 CHECK_NOW_TIMESTAMP = $$(./date +%s) 948 CHECK_NOW_FUTURE_YEARS = 28 949 CHECK_NOW_FUTURE_SECS = $(CHECK_NOW_FUTURE_YEARS) * 366 * 24 * 60 * 60 950 now.ck: checknow.awk date tzdata.zi zdump zic zone1970.tab zonenow.tab 951 rm -fr $@d 952 mkdir $@d 953 ./zic -d $@d tzdata.zi 954 now=$(CHECK_NOW_TIMESTAMP) && \ 955 future=$$(($(CHECK_NOW_FUTURE_SECS) + $$now)) && \ 956 ./zdump -i -t $$now,$$future \ 957 $$(find "$$PWD/$@d"/????*/ -type f) \ 958 >$@d/zdump-now.tab && \ 959 ./zdump -i -t 0,$$future \ 960 $$(find "$$PWD/$@d" -name Etc -prune \ 961 -o -type f ! -name '*.tab' -print) \ 962 >$@d/zdump-1970.tab 963 $(AWK) \ 964 -v zdump_table=$@d/zdump-now.tab \ 965 -f checknow.awk zonenow.tab 966 $(AWK) \ 967 'BEGIN {print "-\t-\tUTC"} /^Zone/ {print "-\t-\t" $$2}' \ 968 $(PRIMARY_YDATA) backward factory | \ 969 $(AWK) \ 970 -v zdump_table=$@d/zdump-1970.tab \ 971 -f checknow.awk 972 rm -fr $@d 973 touch $@ 974 975 tables.ck: checktab.awk $(YDATA) backward zone.tab zone1970.tab 976 for tab in $(ZONETABLES); do \ 977 test "$$tab" = zone.tab && links='$(BACKWARD)' || links=''; \ 978 $(AWK) -f checktab.awk -v zone_table=$$tab $(YDATA) $$links \ 979 || exit; \ 980 done 981 touch $@ 982 983 tzs.ck: $(TZS) $(TZS_NEW) 984 if test -s $(TZS); then \ 985 $(SETUP_DIFF_TZS) && $$DIFF_TZS $(TZS) $(TZS_NEW); \ 986 else \ 987 cp $(TZS_NEW) $(TZS); \ 988 fi 989 touch $@ 990 991 check_web: $(CHECK_WEB_PAGES) 992 .SUFFIXES: .ck .html 993 .html.ck: 994 { ! ($(CURL) --version) >/dev/null 2>&1 || \ 995 $(CURL) -sS --url https://validator.w3.org/nu/ -F out=gnu \ 996 -F file=@$<; } >$@.out && \ 997 test ! -s $@.out || { cat $@.out; exit 1; } 998 mv $@.out $@ 999 1000 ziguard.ck: rearguard.zi vanguard.zi ziguard.awk 1001 $(AWK) -v DATAFORM=rearguard -f ziguard.awk vanguard.zi | \ 1002 diff -u rearguard.zi - 1003 $(AWK) -v DATAFORM=vanguard -f ziguard.awk rearguard.zi | \ 1004 diff -u vanguard.zi - 1005 touch $@ 1006 1007 # Check that zishrink.awk does not alter the data, and that ziguard.awk 1008 # preserves main-format data. 1009 check_zishrink: zishrink-posix.ck zishrink-right.ck 1010 zishrink-posix.ck zishrink-right.ck: \ 1011 zic leapseconds $(PACKRATDATA) $(PACKRATLIST) \ 1012 $(TDATA) $(DATAFORM).zi tzdata.zi 1013 rm -fr $@d t-$@d shrunk-$@d 1014 mkdir $@d t-$@d shrunk-$@d 1015 case $@ in \ 1016 *right*) leap='-L leapseconds';; \ 1017 *) leap=;; \ 1018 esac && \ 1019 $(ZIC) $$leap -d $@d $(DATAFORM).zi && \ 1020 $(ZIC) $$leap -d shrunk-$@d tzdata.zi && \ 1021 case $(DATAFORM),$(PACKRATLIST) in \ 1022 main,) \ 1023 $(ZIC) $$leap -d t-$@d $(TDATA) && \ 1024 $(AWK) '/^Rule/' $(TDATA) | \ 1025 $(ZIC) $$leap -d t-$@d - $(PACKRATDATA) && \ 1026 diff -r $@d t-$@d;; \ 1027 esac 1028 diff -r $@d shrunk-$@d 1029 rm -fr $@d t-$@d shrunk-$@d 1030 touch $@ 1031 1032 clean_misc: 1033 rm -fr *.ckd *.dir 1034 rm -f *.ck *.core *.o *.out core core.* \ 1035 date tzdir.h tzselect version.h zdump zic libtz.a 1036 clean: clean_misc 1037 rm -fr tzdb-*/ 1038 rm -f *.zi $(TZS_NEW) 1039 1040 maintainer-clean: clean 1041 @echo 'This command is intended for maintainers to use; it' 1042 @echo 'deletes files that may need special tools to rebuild.' 1043 rm -f leapseconds version $(MANTXTS) $(TZS) *.asc *.tar.* 1044 1045 names: 1046 @echo $(ENCHILADA) 1047 1048 public: check public.ck $(CHECK_TIME_T_ALTERNATIVES) \ 1049 tarballs signatures 1050 1051 date.1.txt: date.1 1052 newctime.3.txt: newctime.3 1053 newstrftime.3.txt: newstrftime.3 1054 newtzset.3.txt: newtzset.3 1055 time2posix.3.txt: time2posix.3 1056 tzfile.5.txt: tzfile.5 1057 tzselect.8.txt: tzselect.8 1058 zdump.8.txt: zdump.8 1059 zic.8.txt: zic.8 1060 1061 $(MANTXTS): workman.sh 1062 LC_ALL=C sh workman.sh $(@:.txt=) >$@.out 1063 mv $@.out $@ 1064 1065 # Set file timestamps deterministically if possible, 1066 # so that tarballs containing the timestamps are reproducible. 1067 # 1068 # '$(SET_TIMESTAMP_N) N DEST A B C ...' sets the timestamp of the 1069 # file DEST to the maximum of the timestamps of the files A B C ..., 1070 # plus N if GNU ls and touch are available. 1071 SET_TIMESTAMP_N = sh -c '\ 1072 n=$$0 dest=$$1; shift; \ 1073 <"$$dest" && \ 1074 if test $$n != 0 && \ 1075 lsout=$$(ls -nt --time-style="+%s" "$$@" 2>/dev/null); then \ 1076 set x $$lsout && \ 1077 timestamp=$$(($$7 + $$n)) && \ 1078 echo "+ touch -md @$$timestamp $$dest" && \ 1079 touch -md @$$timestamp "$$dest"; \ 1080 else \ 1081 newest=$$(ls -t "$$@" | sed 1q) && \ 1082 echo "+ touch -mr $$newest $$dest" && \ 1083 touch -mr "$$newest" "$$dest"; \ 1084 fi' 1085 # If DEST depends on A B C ... in this Makefile, callers should use 1086 # $(SET_TIMESTAMP_DEP) DEST A B C ..., for the benefit of any 1087 # downstream 'make' that considers equal timestamps to be out of date. 1088 # POSIX allows this 'make' behavior, and HP-UX 'make' does it. 1089 # If all that matters is that the timestamp be reproducible 1090 # and plausible, use $(SET_TIMESTAMP). 1091 SET_TIMESTAMP = $(SET_TIMESTAMP_N) 0 1092 SET_TIMESTAMP_DEP = $(SET_TIMESTAMP_N) 1 1093 1094 # Set the timestamps to those of the git repository, if available, 1095 # and if the files have not changed since then. 1096 # This uses GNU 'ls --time-style=+%s', which outputs the seconds count, 1097 # and GNU 'touch -d@N FILE', where N is the number of seconds since 1970. 1098 # If git or GNU is absent, don't bother to sync with git timestamps. 1099 # Also, set the timestamp of each prebuilt file like 'leapseconds' 1100 # to be the maximum of the files it depends on. 1101 set-timestamps.out: $(EIGHT_YARDS) 1102 rm -f $@ 1103 if (type git) >/dev/null 2>&1 && \ 1104 files=$$(git ls-files $(EIGHT_YARDS)) && \ 1105 touch -md @1 test.out; then \ 1106 rm -f test.out && \ 1107 for file in $$files; do \ 1108 if git diff --quiet HEAD $$file; then \ 1109 time=$$(TZ=UTC0 git log -1 \ 1110 --format='tformat:%cd' \ 1111 --date='format:%Y-%m-%dT%H:%M:%SZ' \ 1112 $$file) && \ 1113 echo "+ touch -md $$time $$file" && \ 1114 touch -md $$time $$file; \ 1115 else \ 1116 echo >&2 "$$file: warning: does not match repository"; \ 1117 fi || exit; \ 1118 done; \ 1119 fi 1120 $(SET_TIMESTAMP_DEP) leapseconds $(LEAP_DEPS) 1121 for file in $(MANTXTS); do \ 1122 $(SET_TIMESTAMP_DEP) $$file $${file%.txt} workman.sh || \ 1123 exit; \ 1124 done 1125 $(SET_TIMESTAMP_DEP) version $(VERSION_DEPS) 1126 $(SET_TIMESTAMP_DEP) tzdata.zi $(TZDATA_ZI_DEPS) 1127 touch $@ 1128 set-tzs-timestamp.out: $(TZS) 1129 $(SET_TIMESTAMP_DEP) $(TZS) $(TZS_DEPS) 1130 touch $@ 1131 1132 # The zics below ensure that each data file can stand on its own. 1133 # We also do an all-files run to catch links to links. 1134 1135 public.ck: $(VERSION_DEPS) 1136 rm -fr $@d 1137 mkdir $@d 1138 ln $(VERSION_DEPS) $@d 1139 cd $@d \ 1140 && $(MAKE) CFLAGS='$(GCC_DEBUG_FLAGS)' TZDIR='$(TZDIR)' ALL 1141 for i in $(TDATA_TO_CHECK) \ 1142 tzdata.zi vanguard.zi main.zi rearguard.zi; \ 1143 do \ 1144 $@d/zic -v -d $@d/zoneinfo $@d/$$i || exit; \ 1145 done 1146 $@d/zic -v -d $@d/zoneinfo-all $(TDATA_TO_CHECK) 1147 : 1148 : Also check 'backzone' syntax. 1149 rm $@d/main.zi 1150 cd $@d && $(MAKE) PACKRATDATA=backzone main.zi 1151 $@d/zic -d $@d/zoneinfo main.zi 1152 rm $@d/main.zi 1153 cd $@d && \ 1154 $(MAKE) PACKRATDATA=backzone PACKRATLIST=zone.tab main.zi 1155 $@d/zic -d $@d/zoneinfo main.zi 1156 : 1157 rm -fr $@d 1158 touch $@ 1159 1160 # Check that the code works under various alternative 1161 # implementations of time_t. 1162 check_time_t_alternatives: $(TIME_T_ALTERNATIVES) 1163 $(TIME_T_ALTERNATIVES_TAIL): $(TIME_T_ALTERNATIVES_HEAD) 1164 $(TIME_T_ALTERNATIVES): $(VERSION_DEPS) 1165 rm -fr $@d 1166 mkdir $@d 1167 ln $(VERSION_DEPS) $@d 1168 case $@ in \ 1169 *32_t*) range=-2147483648,2147483648;; \ 1170 u*) range=0,4294967296;; \ 1171 *) range=-4294967296,4294967296;; \ 1172 esac && \ 1173 wd=$$PWD && \ 1174 zones=$$($(AWK) '/^[^#]/ { print $$3 }' <zone1970.tab) && \ 1175 if test $@ = $(TIME_T_ALTERNATIVES_HEAD); then \ 1176 range_target=; \ 1177 else \ 1178 range_target=to$$range.tzs; \ 1179 fi && \ 1180 (cd $@d && \ 1181 $(MAKE) TOPDIR="$$wd/$@d" \ 1182 CFLAGS='$(CFLAGS) -Dtime_tz='"'$(@:.ck=)'" \ 1183 REDO='$(REDO)' \ 1184 D="$$wd/$@d" \ 1185 TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \ 1186 install $$range_target) && \ 1187 test $@ = $(TIME_T_ALTERNATIVES_HEAD) || { \ 1188 (cd $(TIME_T_ALTERNATIVES_HEAD)d && \ 1189 $(MAKE) TOPDIR="$$wd/$@d" \ 1190 TZS_YEAR="$$range" TZS_CUTOFF_FLAG="-t $$range" \ 1191 D="$$wd/$@d" \ 1192 to$$range.tzs) && \ 1193 $(SETUP_DIFF_TZS) && \ 1194 $$DIFF_TZS $(TIME_T_ALTERNATIVES_HEAD)d/to$$range.tzs \ 1195 $@d/to$$range.tzs && \ 1196 if diff -q Makefile Makefile 2>/dev/null; then \ 1197 quiet_option='-q'; \ 1198 else \ 1199 quiet_option=''; \ 1200 fi && \ 1201 diff $$quiet_option -r $(TIME_T_ALTERNATIVES_HEAD)d/etc \ 1202 $@d/etc && \ 1203 diff $$quiet_option -r \ 1204 $(TIME_T_ALTERNATIVES_HEAD)d/usr/share \ 1205 $@d/usr/share; \ 1206 } 1207 touch $@ 1208 1209 TRADITIONAL_ASC = \ 1210 tzcode$(VERSION).tar.gz.asc \ 1211 tzdata$(VERSION).tar.gz.asc 1212 REARGUARD_ASC = \ 1213 tzdata$(VERSION)-rearguard.tar.gz.asc 1214 ALL_ASC = $(TRADITIONAL_ASC) $(REARGUARD_ASC) \ 1215 tzdb-$(VERSION).tar.lz.asc 1216 1217 tarballs rearguard_tarballs tailored_tarballs traditional_tarballs \ 1218 signatures rearguard_signatures traditional_signatures: \ 1219 version set-timestamps.out rearguard.zi vanguard.zi 1220 read -r VERSION <version && \ 1221 $(MAKE) AWK='$(AWK)' VERSION="$$VERSION" $@_version 1222 1223 # These *_version rules are intended for use if VERSION is set by some 1224 # other means. Ordinarily these rules are used only by the above 1225 # non-_version rules, which set VERSION on the 'make' command line. 1226 tarballs_version: traditional_tarballs_version rearguard_tarballs_version \ 1227 tzdb-$(VERSION).tar.lz 1228 rearguard_tarballs_version: \ 1229 tzdata$(VERSION)-rearguard.tar.gz 1230 traditional_tarballs_version: \ 1231 tzcode$(VERSION).tar.gz tzdata$(VERSION).tar.gz 1232 tailored_tarballs_version: \ 1233 tzdata$(VERSION)-tailored.tar.gz 1234 signatures_version: $(ALL_ASC) 1235 rearguard_signatures_version: $(REARGUARD_ASC) 1236 traditional_signatures_version: $(TRADITIONAL_ASC) 1237 1238 tzcode$(VERSION).tar.gz: set-timestamps.out 1239 $(SETUP_TAR) && \ 1240 $$TAR -cf - \ 1241 $(COMMON) $(DOCS) $(SOURCES) | \ 1242 gzip $(GZIPFLAGS) >$@.out 1243 mv $@.out $@ 1244 1245 tzdata$(VERSION).tar.gz: set-timestamps.out 1246 $(SETUP_TAR) && \ 1247 $$TAR -cf - $(TZDATA_DIST) | \ 1248 gzip $(GZIPFLAGS) >$@.out 1249 mv $@.out $@ 1250 1251 # Create empty files with a reproducible timestamp. 1252 CREATE_EMPTY = TZ=UTC0 touch -mt 202010122253.00 1253 1254 # The obsolescent *rearguard* targets and related macros are present 1255 # for backwards compatibility with tz releases 2018e through 2022a. 1256 # They should go away eventually. To build rearguard tarballs you 1257 # can instead use 'make DATAFORM=rearguard tailored_tarballs'. 1258 tzdata$(VERSION)-rearguard.tar.gz: rearguard.zi set-timestamps.out 1259 rm -fr $@.dir 1260 mkdir $@.dir 1261 ln $(TZDATA_DIST) $@.dir 1262 cd $@.dir && rm -f $(TDATA) $(PACKRATDATA) version 1263 for f in $(TDATA) $(PACKRATDATA); do \ 1264 rearf=$@.dir/$$f; \ 1265 $(AWK) -v DATAFORM=rearguard -f ziguard.awk $$f >$$rearf && \ 1266 $(SET_TIMESTAMP_DEP) $$rearf ziguard.awk $$f || exit; \ 1267 done 1268 sed '1s/$$/-rearguard/' <version >$@.dir/version 1269 : The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier. 1270 $(CREATE_EMPTY) $@.dir/pacificnew 1271 touch -mr version $@.dir/version 1272 $(SETUP_TAR) && \ 1273 (cd $@.dir && \ 1274 $$TAR -cf - \ 1275 $(TZDATA_DIST) pacificnew | \ 1276 gzip $(GZIPFLAGS)) >$@.out 1277 mv $@.out $@ 1278 1279 # Create a tailored tarball suitable for TZUpdater and compatible tools. 1280 # For example, 'make DATAFORM=vanguard tailored_tarballs' makes a tarball 1281 # useful for testing whether TZUpdater supports vanguard form. 1282 # The generated tarball is not byte-for-byte equivalent to a hand-tailored 1283 # traditional tarball, as data entries are put into 'etcetera' even if they 1284 # came from some other source file. However, the effect should be the same 1285 # for ordinary use, which reads all the source files. 1286 tzdata$(VERSION)-tailored.tar.gz: set-timestamps.out 1287 rm -fr $@.dir 1288 mkdir $@.dir 1289 : The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier. 1290 if test $(DATAFORM) = vanguard; then \ 1291 pacificnew=; \ 1292 else \ 1293 pacificnew=pacificnew; \ 1294 fi && \ 1295 cd $@.dir && \ 1296 $(CREATE_EMPTY) $(PRIMARY_YDATA) $(NDATA) backward \ 1297 $$pacificnew 1298 (grep '^#' tzdata.zi && echo && cat $(DATAFORM).zi) \ 1299 >$@.dir/etcetera 1300 touch -mr tzdata.zi $@.dir/etcetera 1301 sed -n \ 1302 -e '/^# *version *\(.*\)/h' \ 1303 -e '/^# *ddeps */H' \ 1304 -e '$$!d' \ 1305 -e 'g' \ 1306 -e 's/^# *version *//' \ 1307 -e 's/\n# *ddeps */-/' \ 1308 -e 's/ /-/g' \ 1309 -e 'p' \ 1310 <tzdata.zi >$@.dir/version 1311 touch -mr version $@.dir/version 1312 links= && \ 1313 for file in $(TZDATA_DIST); do \ 1314 test -f $@.dir/$$file || links="$$links $$file"; \ 1315 done && \ 1316 ln $$links $@.dir 1317 $(SETUP_TAR) && \ 1318 (cd $@.dir && \ 1319 $$TAR -cf - * | gzip $(GZIPFLAGS)) >$@.out 1320 mv $@.out $@ 1321 1322 tzdb-$(VERSION).tar.lz: set-timestamps.out set-tzs-timestamp.out 1323 rm -fr tzdb-$(VERSION) 1324 mkdir tzdb-$(VERSION) 1325 ln $(ENCHILADA) tzdb-$(VERSION) 1326 $(SET_TIMESTAMP) tzdb-$(VERSION) tzdb-$(VERSION)/* 1327 $(SETUP_TAR) && \ 1328 $$TAR -cf - tzdb-$(VERSION) | lzip -9 >$@.out 1329 mv $@.out $@ 1330 1331 tzcode$(VERSION).tar.gz.asc: tzcode$(VERSION).tar.gz 1332 tzdata$(VERSION).tar.gz.asc: tzdata$(VERSION).tar.gz 1333 tzdata$(VERSION)-rearguard.tar.gz.asc: tzdata$(VERSION)-rearguard.tar.gz 1334 tzdb-$(VERSION).tar.lz.asc: tzdb-$(VERSION).tar.lz 1335 $(ALL_ASC): 1336 $(GPG) --armor --detach-sign $? 1337 1338 TYPECHECK_CFLAGS = $(CFLAGS) -DTYPECHECK -D__time_t_defined -D_TIME_T 1339 typecheck: long-long.ck unsigned.ck 1340 long-long.ck unsigned.ck: $(VERSION_DEPS) 1341 rm -fr $@d 1342 mkdir $@d 1343 ln $(VERSION_DEPS) $@d 1344 cd $@d && \ 1345 case $@ in \ 1346 long-long.*) i="long long";; \ 1347 unsigned.* ) i="unsigned" ;; \ 1348 esac && \ 1349 $(MAKE) \ 1350 CFLAGS="$(TYPECHECK_CFLAGS) \"-Dtime_t=$$i\"" \ 1351 TOPDIR="$$PWD" \ 1352 install 1353 $@d/zdump -i -c 1970,1971 Europe/Rome 1354 touch $@ 1355 1356 zonenames: tzdata.zi 1357 @$(AWK) '/^Z/ { print $$2 } /^L/ { print $$3 }' tzdata.zi 1358 1359 asctime.o: private.h 1360 date.o: private.h 1361 difftime.o: private.h 1362 localtime.o: private.h tzdir.h tzfile.h 1363 strftime.o: localtime.c private.h tzdir.h tzfile.h 1364 zdump.o: private.h version.h 1365 zic.o: private.h tzdir.h tzfile.h version.h 1366 1367 .PHONY: ALL INSTALL all 1368 .PHONY: check check_mild check_time_t_alternatives 1369 .PHONY: check_web check_zishrink 1370 .PHONY: clean clean_misc commit-leap-seconds.list dummy.zd 1371 .PHONY: fetch-leap-seconds.list force_tzs 1372 .PHONY: install maintainer-clean names 1373 .PHONY: posix_only posix_right public 1374 .PHONY: rearguard_signatures rearguard_signatures_version 1375 .PHONY: rearguard_tarballs rearguard_tarballs_version 1376 .PHONY: right_only right_posix signatures signatures_version 1377 .PHONY: tarballs tarballs_version 1378 .PHONY: traditional_signatures traditional_signatures_version 1379 .PHONY: traditional_tarballs traditional_tarballs_version 1380 .PHONY: tailored_tarballs tailored_tarballs_version 1381 .PHONY: typecheck 1382 .PHONY: zonenames zones 1383 .PHONY: $(ZDS) 1384
Indexes created Sat Sep 20 22:09:52 GMT 2025