diff options
Diffstat (limited to 'contrib/tzdata/Makefile')
| -rw-r--r-- | contrib/tzdata/Makefile | 45 |
1 files changed, 33 insertions, 12 deletions
diff --git a/contrib/tzdata/Makefile b/contrib/tzdata/Makefile index 25f1d357867b..fec0a4f7eb36 100644 --- a/contrib/tzdata/Makefile +++ b/contrib/tzdata/Makefile @@ -35,11 +35,13 @@ DATAFORM= main LOCALTIME= GMT -# If you want something other than Eastern United States time as a template -# for handling ruleless POSIX-style timezone environment variables, +# The POSIXRULES macro controls interpretation of nonstandard and obsolete +# POSIX-like TZ settings like TZ='EET-2EEST' that lack DST transition rules. +# In the reference implementation, if you want something other than Eastern +# United States time as a template for handling these settings, you can # change the line below (after finding the timezone you want in the # one of the $(TDATA) source files, or adding it to a source file). -# A ruleless environment setting like TZ='CST6CDT' uses the rules in the +# A setting like TZ='EET-2EEST' is supposed to use the rules in the # template file to determine "spring forward" and "fall back" days and # times; the environment variable itself specifies UT offsets of standard and # daylight saving time. @@ -49,6 +51,17 @@ LOCALTIME= GMT # Use the command # make zonenames # to get a list of the values you can use for POSIXRULES. +# +# If POSIXRULES is empty, no template is installed; this is the intended +# future default for POSIXRULES. +# +# Nonempty POSIXRULES is obsolete and should not be relied on, because: +# * It does not work correctly in popular implementations such as GNU/Linux. +# * It does not work in the tzdb implementation for timestamps after 2037. +# * It is incompatible with 'zic -b slim' if POSIXRULES specifies transitions +# at standard time or UT rather than at local time. +# In short, software should avoid ruleless settings like TZ='EET-2EEST' +# and so should not depend on the value of POSIXRULES. POSIXRULES= America/New_York @@ -231,6 +244,13 @@ LDLIBS= # other than simply getting garbage data # -DUSE_LTZ=0 to build zdump with the system time zone library # Also set TZDOBJS=zdump.o and CHECK_TIME_T_ALTERNATIVES= below. +# -DZIC_BLOAT_DEFAULT=\"slim\" to default zic's -b option to "slim", and +# similarly for "fat". Fat TZif files work around incompatibilities +# and bugs in some TZif readers, notably readers that mishandle 64-bit +# data in TZif files. Slim TZif files are more efficient and do not +# work around these incompatibilities and bugs. If not given, the +# current default is "fat" but this is intended to change as readers +# requiring fat files often mishandle timestamps after 2037 anyway. # -DZIC_MAX_ABBR_LEN_WO_WARN=3 # (or some other number) to set the maximum time zone abbreviation length # that zic will accept without a warning (the default is 6) @@ -364,7 +384,9 @@ ZIC= $(zic) $(ZFLAGS) # To shrink the size of installed TZif files, # append "-r @N" to omit data before N-seconds-after-the-Epoch. -# See the zic man page for more about -r. +# You can also append "-b slim" if that is not already the default; +# see ZIC_BLOAT_DEFAULT above. +# See the zic man page for more about -b and -r. ZFLAGS= # How to use zic to install TZif files. @@ -388,6 +410,9 @@ KSHELL= /bin/bash # Name of curl <https://curl.haxx.se/>, used for HTML validation. CURL= curl +# Name of GNU Privacy Guard <https://gnupg.org/>, used to sign distributions. +GPG= gpg + # The path where SGML DTDs are kept and the catalog file(s) to use when # validating HTML 4.01. The default should work on both Debian and Red Hat. SGML_TOPDIR= /usr @@ -562,7 +587,9 @@ install: all $(DATA) $(REDO) $(MANS) '$(DESTDIR)$(LIBDIR)' \ '$(DESTDIR)$(MANDIR)/man3' '$(DESTDIR)$(MANDIR)/man5' \ '$(DESTDIR)$(MANDIR)/man8' - $(ZIC_INSTALL) -l $(LOCALTIME) -p $(POSIXRULES) \ + $(ZIC_INSTALL) -l $(LOCALTIME) \ + `case '$(POSIXRULES)' in ?*) echo '-p';; esac \ + ` $(POSIXRULES) \ -t '$(DESTDIR)$(TZDEFAULT)' cp -f $(TABDATA) '$(DESTDIR)$(TZDIR)/.' cp tzselect '$(DESTDIR)$(BINDIR)/.' @@ -781,12 +808,6 @@ CHECK_CC_LIST = { n = split($$1,a,/,/); for (i=2; i<=n; i++) print a[1], a[i]; } check_sorted: backward backzone iso3166.tab zone.tab zone1970.tab $(AWK) '/^Link/ {print $$3}' backward | LC_ALL=C sort -cu $(AWK) '/^Zone/ {print $$2}' backzone | LC_ALL=C sort -cu - $(AWK) '/^[^#]/ {print $$1}' iso3166.tab | LC_ALL=C sort -cu - $(AWK) '/^[^#]/ {print $$1}' zone.tab | LC_ALL=C sort -c - $(AWK) '/^[^#]/ {print substr($$0, 1, 2)}' zone1970.tab | \ - LC_ALL=C sort -c - $(AWK) '/^[^#]/ $(CHECK_CC_LIST)' zone1970.tab | \ - LC_ALL=C sort -cu touch $@ check_links: checklinks.awk $(TDATA_TO_CHECK) tzdata.zi @@ -1051,7 +1072,7 @@ tzdata$(VERSION).tar.gz.asc: tzdata$(VERSION).tar.gz tzdata$(VERSION)-rearguard.tar.gz.asc: tzdata$(VERSION)-rearguard.tar.gz tzdb-$(VERSION).tar.lz.asc: tzdb-$(VERSION).tar.lz $(ALL_ASC): - gpg2 --armor --detach-sign $? + $(GPG) --armor --detach-sign $? TYPECHECK_CFLAGS = $(CFLAGS) -DTYPECHECK -D__time_t_defined -D_TIME_T typecheck: typecheck_long_long typecheck_unsigned |