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 += --foreign-user -ctranslator
  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))
  51         $(XGETTEXT) -D $(srcdir) -n $(addprefix -k, $(GETTEXT_TRIGGERS)) -f $<
  52 else
  53 po/$(CATALOG_NAME).pot: $(GETTEXT_FILES)
  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         mv messages.po $@
  60 else # not XGETTEXT
  61         @echo "You don't have 'xgettext'."; exit 1
  62 endif # not XGETTEXT
  63
  64
  65 install-po: all-po installdirs-po
  66 ifneq (,$(LANGUAGES))
  67         for lang in $(LANGUAGES); do \
  68           $(INSTALL_DATA) po/$$lang.mo '$(DESTDIR)$(localedir)'/$$lang/LC_MESSAGES/$(CATALOG_NAME).mo || exit 1; \
  69         done
  70 endif
  71
  72 installdirs-po:
  73         $(mkinstalldirs) $(foreach lang, $(LANGUAGES), '$(DESTDIR)$(localedir)'/$(lang)/LC_MESSAGES)
  74
  75 uninstall-po:
  76         rm -f $(foreach lang, $(LANGUAGES), '$(DESTDIR)$(localedir)'/$(lang)/LC_MESSAGES/$(CATALOG_NAME).mo)
  77
  78
  79 clean-po:
  80         $(if $(MO_FILES),rm -f $(MO_FILES))
  81         @$(if $(PO_FILES),rm -f $(addsuffix .old, $(PO_FILES)))
  82         rm -f po/$(CATALOG_NAME).pot
  83
  84
  85 maintainer-check-po: $(PO_FILES)
  86         for file in $^; do \
  87           $(MSGFMT) -c -v -o /dev/null $$file || exit 1; \
  88         done
  89
  90
  91 init-po: po/$(CATALOG_NAME).pot
  92
  93
  94 define merge-lang
  95 @printf 'merging $(1) '
  96 @if $(MSGMERGE) $(srcdir)/po/$(1).po $< -o po/$(1).po.new $(addprefix --compendium=,$(shell find $(top_srcdir) -name $(1).po -printf '%p ')); \
  97 then \
  98     mv $(srcdir)/po/$(1).po po/$(1).po.old; \
  99     mv po/$(1).po.new $(srcdir)/po/$(1).po; \
 100 else \
 101     echo "msgmerge for $(1) failed"; \
 102     rm -f po/$(1).po.new; \
 103 fi
 104
 105 endef
 106
 107 update-po: po/$(CATALOG_NAME).pot
 108 ifdef MSGMERGE
 109         $(foreach lang,$(LANGUAGES),$(call merge-lang,$(lang)))
 110 else
 111         @echo "You don't have 'msgmerge'." ; exit 1
 112 endif
 113
 114
 115 all: all-po
 116 install: install-po
 117 installdirs: installdirs-po
 118 uninstall: uninstall-po
 119 clean distclean maintainer-clean: clean-po
 120 maintainer-check: maintainer-check-po
 121
 122 .PHONY: all-po install-po installdirs-po uninstall-po clean-po \
 123         maintainer-check-po init-po update-po
 124 .SILENT: installdirs-po