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## Makefile to be run on a Unix box with zic

VERSION = 2023c
TZDIR = zoneinfo
TZTMP = tz
TARFILE = tzdata$(VERSION).tar.gz

## or ZIC = /usr/sbin/zic
ZIC = zic

all:
    rm -Rf $(TZTMP)
    mkdir $(TZTMP)
    tar -C $(TZTMP) -zxf $(TARFILE)
    rm -Rf $(TZDIR)
    mkdir $(TZDIR)
    (cd $(TZTMP); make -f ../Make.zi install)
    echo $(VERSION) > $(TZDIR)/VERSION
    rm -f zoneinfo.zip
    zip -qr9X zoneinfo.zip $(TZDIR)
    rm -Rf $(TZTMP) $(TZDIR)

## omit Factory: meaningless.
YDATA = africa antarctica asia australasia europe northamerica southamerica \
  etcetera backward
TABDATA = iso3166.tab zone1970.tab zone.tab


install: $(YDATA) $(TABDATA)
    $(ZIC) -d ../$(TZDIR) -L /dev/null $(YDATA)
    cp $(TABDATA) ../$(TZDIR)