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# Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Library General Public License for more details.
# You should have received a copy of the GNU Library General Public
# License along with the GNU C Library; see the file COPYING.LIB. If
# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
# Cambridge, MA 02139, USA.
#
# Makefile for time routines
#
subdir := time
headers := time.h sys/time.h sys/timeb.h
distribute := tzfile.h private.h scheck.c ialloc.c yearistype
extra-objs = scheck.o ialloc.o zonenames $(tzfiles:%=z.%)
routines := offtime asctime clock ctime difftime gmtime \
localtime mktime strftime time tzset tzfile \
gettimeofday settimeofday adjtime \
getitimer setitimer \
stime dysize timegm ftime
others := ap zdump zic
tests := test_time clocktest
tzfiles := africa antarctica asia australasia europe northamerica \
southamerica etcetera factory systemv backward
# pacificnew doesn't compile; if it is to be used, it should be included in
# northamerica.
distribute := $(distribute) $(tzfiles) leapseconds pacificnew
install-sbin := zic zdump
include ../Makeconfig # Get objpfx defined so we can use it below.
# zonenames uses this variable.
define nl
endef
include $(objpfx)zonenames
# Make these absolute file names.
installed-localtime-file := $(firstword $(filter /%,$(localtime-file)) \
$(addprefix $(zonedir)/, \
$(localtime-file)))
installed-posixrules-file := $(firstword $(filter /%,$(posixrules-file)) \
$(addprefix $(zonedir)/, \
$(posixrules-file)))
ifndef cross-compiling
# Don't try to install the zoneinfo files since we can't run zic.
install-others = $(addprefix $(zonedir)/,$(zonenames)) \
$(installed-localtime-file) $(installed-posixrules-file)
endif
include ../Rules
$(tzfiles:%=$(objpfx)z.%): $(objpfx)z.%: % Makefile
# Kludge alert: we use an implicit rule (in what we are generating here)
# because that is the only way to tell Make that the one command builds all
# the files.
(echo 'define $*-zones' ;\
awk '$$1 == "Zone" { print $$2 } $$1 == "Link" { print $$3 }' $^;\
echo 'endef' ;\
echo '$*-zones := $$(subst $$(nl), ,$$($*-zones))' ;\
echo 'ifdef $*-zones' ;\
echo '$$(addprefix $$(datadir)/zone%/,$$($*-zones)): \' ;\
echo '$< $$(objpfx)zic leapseconds yearistype' ;\
echo ' $$(tzcompile)' ;\
echo 'endif' ;\
echo 'zonenames := $$(zonenames) $$($*-zones)' ;\
) > $@.new
mv $@.new $@
$(objpfx)zonenames: Makefile
(for file in $(tzfiles); do \
echo "include \$$(objpfx)z.$$file"; \
done) > $@.new
mv $@.new $@
.PHONY: echo-zonenames
echo-zonenames: zonenames
@echo 'Known zones: $(zonenames)'
# Although $(zonedir) gets compiled into zic, it is useful to always
# specify it with -d on the command line so that it can be overridden on
# the command line of `make install' (e.g., "make install prefix=/foo").
zic-cmd = $(built-program-cmd) -d $(zonedir)
define tzcompile
$(zic-cmd) -L $(word 3,$^) -y $(dir $(word 4,$^))$(notdir $(word 4,$^)) $<
endef
ifdef localtime
$(installed-localtime-file): $(zonedir)/$(localtime) $(objpfx)zic
$(zic-cmd) -l $(localtime)
endif
ifdef posixrules
$(installed-posixrules-file): $(zonedir)/$(posixrules) $(objpfx)zic
$(zic-cmd) -p $(posixrules)
endif
$(objpfx)zic: $(objpfx)scheck.o $(objpfx)ialloc.o
$(objpfx)tzfile.o: tzfile.c; $(tz-cc)
$(objpfx)zic.o: zic.c; $(tz-cc)
# Some versions of GNU make have a bug with backslashes in define directives.
tz-cc = $(COMPILE.c) $(+gcc-nowarn) \
-DTZDIR='"$(zonedir)"' \
-DTZDEFAULT='"$(localtime-file)"' \
-DTZDEFRULES='"$(posixrules-file)"' \
$< $(OUTPUT_OPTION)
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