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### Makefile for GNU gettext (.po) files
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srcdir = .
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targetdir = ./LocaleData
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CATOBJEXT = .po
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CATALOGS = $(addsuffix $(CATOBJEXT), $(LINGUAS))
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MO_FILES = $(addsuffix .mo, $(LINGUAS))
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XGETTEXT = xgettext
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MSGMERGE = msgmerge
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MSGFMT   = msgfmt
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## Programming language: disable to let it be guessed based on filename suffix
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prog_language = --language=PHP
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## Character encoding of source files: disable for ASCII
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encoding = --from-code=UTF-8
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## Translation keyword: disable to let it be determined based on the prog. language
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#		--keyword --keyword='_' --keyword='$$__' --keyword=__ --keyword=__x \
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#		--keyword=__n:1,2 --keyword=__nx:1,2 --keyword=__xn:1,2 \
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#		--keyword=__p:1c,2 --keyword=__np:1c,2,3 \
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#		--keyword=__npx:1c,2,3 --keyword=N__ --keyword=N__n:1,2 \
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#		--keyword=N__p:1c,2 --keyword=N__np:1c,2,3 --keyword=%__
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keywords = --keyword=tr
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include PACKAGE
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TD = $(strip $(TEXTDOMAIN))
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srcfiles_list = $(srcdir)/POTFILES.in
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srcfiles = $(shell cat $(srcfiles_list))
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.PHONY: help
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help:
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	@echo 'Available targets:'; \
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	echo '  pot       - remake master catalog'; \
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	echo '  update-po - merge po files'; \
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	echo '  update-mo - regenerate mo files'; \
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	echo '  install   - install mo files'; \
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	echo '  all       - all of the above'
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.PHONY: pot
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pot: $(TD).pot
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.PHONY: update-po
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update-po: $(CATALOGS)
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.PHONY: update-mo
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update-mo: $(MO_FILES)
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.PHONY: install
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install: $(MO_FILES)
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	@cd $(srcdir); \
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	targetdir='$(targetdir)'; \
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	languages='$(LINGUAS)'; \
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	for lang in $$languages; do \
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		dest="$$targetdir/$$lang/LC_MESSAGES/$(TD).mo"; \
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		cat="$$lang.mo"; \
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		printf "Installing \`%s' as \`%s' ... " "$$cat" "$$dest"; \
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		mkdir -p "$$targetdir/$$lang/LC_MESSAGES" || exit 1; \
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		cp -f "$$cat" "$$dest" && chmod 644 "$$dest" || exit 1; \
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		echo "done."; \
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	done
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.PHONY: all
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all: install
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$(TD).pot: $(srcfiles)
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	@printf "Generating \`%s' from source files ... " "$(TD).pot"; \
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	$(XGETTEXT) \
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		--files-from='$(srcfiles_list)' \
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		--output=$(TD).pot \
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		$(prog_language) \
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		$(encoding) \
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		--join-existing \
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		--add-comments=TRANSLATORS: \
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		$(keywords) \
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		--copyright-holder="$(COPYRIGHT_HOLDER)" \
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		--package-name="$(PACKAGE_NAME)" \
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		--package-version="$(PACKAGE_VERSION)" \
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		--msgid-bugs-address="$(MSGID_BUGS_ADDRESS)"; \
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	echo 'done.'
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$(CATALOGS): $(TD).pot
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	@printf "Updating \`%s' " "$@"; \
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	po_file="$@"; \
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	lang="$${po_file%$(CATOBJEXT)}"; \
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	mv "$$lang.po" "$$lang.old.po"; \
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	if $(MSGMERGE) -o "$$lang.po" "$$lang.old.po" "$(TD).pot"; then \
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		rm -f "$$lang.old.po"; \
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	else \
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		echo >&2 "$(MSGMERGE) for \`$@' failed!"; \
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		rm -f "$$lang.po"; \
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		mv "$$lang.old.po" "$$lang.po"; \
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	fi
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$(MO_FILES): $(CATALOGS)
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	@printf "Generating message catalog \`%s' ... " "$@";\
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	mo_file="$@"; \
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	po_file="$${mo_file%.mo}.po"; \
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	$(MSGFMT) --check --statistics --verbose -o "$@" "$$po_file"