src/nls-global.mk

   1 # $PostgreSQL$
   2
   3 # Common rules for Native Language Support (NLS)
   4 #
   5 # If some subdirectory of the source tree wants to provide NLS, it
   6 # needs to contain a file 'nls.mk' with the following make variable
   7 # assignments:
   8 #
   9 # CATALOG_NAME          -- name of the message catalog (xxx.po); probably
  10 #                          name of the program
  11 # AVAIL_LANGUAGES       -- list of languages that are provided/supported
  12 # GETTEXT_FILES         -- list of source files that contain message strings
  13 # GETTEXT_TRIGGERS      -- (optional) list of functions that contain
  14 #                          translatable strings
  15 #
  16 # That's all, the rest is done here, if --enable-nls was specified.
  17 #
  18 # The only user-visible targets here are 'init-po', to make an initial
  19 # "blank" catalog from program sources, and 'update-po', which is to
  20 # be called if the messages in the program source have changed, in
  21 # order to merge the changes into the existing .po files.
  22
  23
  24 # existence checked by Makefile.global; otherwise we won't get here
  25 include $(srcdir)/nls.mk
  26
  27 # If user specified the languages he wants in --enable-nls=LANGUAGES,
  28 # filter out the rest.  Else use all available ones.
  29 ifdef WANTED_LANGUAGES
  30 LANGUAGES = $(filter $(WANTED_LANGUAGES), $(AVAIL_LANGUAGES))
  31 else
  32 LANGUAGES = $(AVAIL_LANGUAGES)
  33 endif
  34
  35 PO_FILES = $(addprefix po/, $(addsuffix .po, $(LANGUAGES)))
  36 MO_FILES = $(addprefix po/, $(addsuffix .mo, $(LANGUAGES)))
  37
  38 ifdef XGETTEXT
  39 XGETTEXT += -ctranslator --copyright-holder='PostgreSQL Global Development Group' --msgid-bugs-address=pgsql-bugs@postgresql.org
  40 endif
  41
  42
  43 all-po: $(MO_FILES)
  44
  45 %.mo: %.po
  46         $(MSGFMT) -o $@ $<
  47
  48 ifdef XGETTEXT
  49 ifeq ($(word 1,$(GETTEXT_FILES)),+)
  50 po/$(CATALOG_NAME).pot: $(word 2, $(GETTEXT_FILES)) $(MAKEFILE_LIST)
  51         $(XGETTEXT) -D $(srcdir) -n $(addprefix -k, $(GETTEXT_TRIGGERS)) -f $<
  52 else
  53 po/$(CATALOG_NAME).pot: $(GETTEXT_FILES) $(MAKEFILE_LIST)
  54 # Change to srcdir explicitly, don't rely on $^.  That way we get
  55 # consistent #: file references in the po files.
  56         $(XGETTEXT) -D $(srcdir) -n $(addprefix -k, $(GETTEXT_TRIGGERS)) $(GETTEXT_FILES)
  57 endif
  58         @$(mkinstalldirs) $(dir $@)
  59         sed -e '1,18 { s/SOME DESCRIPTIVE TITLE./LANGUAGE message translation file for $(CATALOG_NAME)/;s/PACKAGE/PostgreSQL/g;s/VERSION/$(MAJORVERSION)/g;s/YEAR/'`date +%Y`'/g; }' messages.po >$@
  60         rm messages.po
  61 else # not XGETTEXT
  62         @echo "You don't have 'xgettext'."; exit 1
  63 endif # not XGETTEXT
  64
  65
  66 # catalog name extentions must match behavior of PG_TEXTDOMAIN() in c.h
  67 install-po: all-po installdirs-po
  68 ifneq (,$(LANGUAGES))
  69         for lang in $(LANGUAGES); do \
  70           $(INSTALL_DATA) po/$$lang.mo '$(DESTDIR)$(localedir)'/$$lang/LC_MESSAGES/$(CATALOG_NAME)$(SO_MAJOR_VERSION)-$(MAJORVERSION).mo || exit 1; \
  71         done
  72 endif
  73
  74 installdirs-po:
  75         $(mkinstalldirs) $(foreach lang, $(LANGUAGES), '$(DESTDIR)$(localedir)'/$(lang)/LC_MESSAGES)
  76
  77 uninstall-po:
  78         rm -f $(foreach lang, $(LANGUAGES), '$(DESTDIR)$(localedir)'/$(lang)/LC_MESSAGES/$(CATALOG_NAME)$(SO_MAJOR_VERSION)-$(MAJORVERSION).mo)
  79
  80
  81 clean-po:
  82         $(if $(MO_FILES),rm -f $(MO_FILES))
  83         @$(if $(wildcard po/*.po.new),rm -f po/*.po.new)
  84         rm -f po/$(CATALOG_NAME).pot
  85
  86
  87 maintainer-check-po: $(PO_FILES)
  88         for file in $^; do \
  89           $(MSGFMT) -c -v -o /dev/null $$file || exit 1; \
  90         done
  91
  92
  93 init-po: po/$(CATALOG_NAME).pot
  94
  95
  96 # For performance reasons, only calculate these when the user actually
  97 # requested update-po or a specific file.
  98 ifneq (,$(filter update-po %.po.new,$(MAKECMDGOALS)))
  99 ALL_LANGUAGES := $(shell find $(top_srcdir) -name '*.po' -print | sed 's,^.*/\([^/]*\).po$$,\1,' | sort -u)
 100 all_compendia := $(shell find $(top_srcdir) -name '*.po' -print)
 101 else
 102 ALL_LANGUAGES = $(AVAIL_LANGUAGES)
 103 all_compendia = FORCE
 104 FORCE:
 105 endif
 106
 107 ifdef WANTED_LANGUAGES
 108 ALL_LANGUAGES := $(filter $(WANTED_LANGUAGES), $(ALL_LANGUAGES))
 109 endif
 110
 111 update-po: $(ALL_LANGUAGES:%=po/%.po.new)
 112
 113 $(AVAIL_LANGUAGES:%=po/%.po.new): po/%.po.new: po/%.po po/$(CATALOG_NAME).pot $(all_compendia)
 114         $(MSGMERGE) $(word 1, $^) $(word 2,$^) -o $@ $(addprefix --compendium=,$(filter %/$*.po,$(wordlist 3,$(words $^),$^)))
 115
 116 # For languages not yet available, merge against oneself, to pick
 117 # up translations from the compendia.  (Merging against /dev/null
 118 # doesn't work so well; it inserts the headers from the first-named
 119 # compendium.)
 120 po/%.po.new: po/$(CATALOG_NAME).pot $(all_compendia)
 121         $(MSGMERGE) $(word 1,$^) $(word 1,$^) -o $@ $(addprefix --compendium=,$(filter %/$*.po,$(wordlist 2,$(words $^),$^)))
 122
 123
 124 all: all-po
 125 install: install-po
 126 installdirs: installdirs-po
 127 uninstall: uninstall-po
 128 clean distclean maintainer-clean: clean-po
 129 maintainer-check: maintainer-check-po
 130
 131 .PHONY: all-po install-po installdirs-po uninstall-po clean-po \
 132         maintainer-check-po init-po update-po
 133 .SILENT: installdirs-po