Use stamp-po mechanism, and update to gettext-0.17.

po/Makefile.in.in

@@ -1,5 +1,5 @@
 # Makefile for PO directory in any package using GNU gettext.
-# Copyright (C) 1995-1997, 2000-2006 by Ulrich Drepper <drepper@gnu.ai.mit.edu>
+# Copyright (C) 1995-1997, 2000-2007 by Ulrich Drepper <drepper@gnu.ai.mit.edu>
 #
 # This file can be copied and used freely without restrictions.  It can
 # be used in projects which are not available under the GNU General Public
@@ -8,7 +8,8 @@
 # Please note that the actual code of GNU gettext is covered by the GNU
 # General Public License and is *not* in the public domain.
 #
-# Origin: gettext-0.16
+# Origin: gettext-0.17
+GETTEXT_MACRO_VERSION = 0.17
 
 PACKAGE = @PACKAGE@
 VERSION = @VERSION@
@@ -95,11 +96,18 @@ CATALOGS = @CATALOGS@
 	mv t-$@ $@
 
 
-all: all-@USE_NLS@
+all: check-macro-version all-@USE_NLS@
 
-all-yes: $(CATALOGS)
+all-yes: stamp-po
 all-no:
 
+# Ensure that the gettext macros and this Makefile.in.in are in sync.
+check-macro-version:
+	@test "$(GETTEXT_MACRO_VERSION)" = "@GETTEXT_MACRO_VERSION@" \
+	  || { echo "*** error: gettext infrastructure mismatch: using a Makefile.in.in from gettext version $(GETTEXT_MACRO_VERSION) but the autoconf macros are from gettext version @GETTEXT_MACRO_VERSION@" 1>&2; \
+	       exit 1; \
+	     }
+
 # $(srcdir)/$(DOMAIN).pot is only created when needed. When xgettext finds no
 # internationalized messages, no $(srcdir)/$(DOMAIN).pot is created (because
 # we don't want to bother translators with empty POT files). We assume that
@@ -130,16 +138,34 @@ stamp-po: $(srcdir)/$(DOMAIN).pot
 # This target rebuilds $(DOMAIN).pot; it is an expensive operation.
 # Note that $(DOMAIN).pot is not touched if it doesn't need to be changed.
 $(DOMAIN).pot-update: $(POTFILES) $(srcdir)/POTFILES.in remove-potcdate.sed
+	if LC_ALL=C grep 'GNU @PACKAGE@' $(top_srcdir)/* 2>/dev/null | grep -v 'libtool:' >/dev/null; then \
+	  package_gnu='GNU '; \
+	else \
+	  package_gnu=''; \
+	fi; \
 	if test -n '$(MSGID_BUGS_ADDRESS)' || test '$(PACKAGE_BUGREPORT)' = '@'PACKAGE_BUGREPORT'@'; then \
 	  msgid_bugs_address='$(MSGID_BUGS_ADDRESS)'; \
 	else \
 	  msgid_bugs_address='$(PACKAGE_BUGREPORT)'; \
 	fi; \
-	$(XGETTEXT) --default-domain=$(DOMAIN) --directory=$(top_srcdir) \
-	  --add-comments=TRANSLATORS: $(XGETTEXT_OPTIONS) \
-	  --files-from=$(srcdir)/POTFILES.in \
-	  --copyright-holder='$(COPYRIGHT_HOLDER)' \
-	  --msgid-bugs-address="$$msgid_bugs_address"
+	case `$(XGETTEXT) --version | sed 1q | sed -e 's,^[^0-9]*,,'` in \
+	  '' | 0.[0-9] | 0.[0-9].* | 0.1[0-5] | 0.1[0-5].* | 0.16 | 0.16.[0-1]*) \
+	    $(XGETTEXT) --default-domain=$(DOMAIN) --directory=$(top_srcdir) \
+	      --add-comments=TRANSLATORS: $(XGETTEXT_OPTIONS) @XGETTEXT_EXTRA_OPTIONS@ \
+	      --files-from=$(srcdir)/POTFILES.in \
+	      --copyright-holder='$(COPYRIGHT_HOLDER)' \
+	      --msgid-bugs-address="$$msgid_bugs_address" \
+	    ;; \
+	  *) \
+	    $(XGETTEXT) --default-domain=$(DOMAIN) --directory=$(top_srcdir) \
+	      --add-comments=TRANSLATORS: $(XGETTEXT_OPTIONS) @XGETTEXT_EXTRA_OPTIONS@ \
+	      --files-from=$(srcdir)/POTFILES.in \
+	      --copyright-holder='$(COPYRIGHT_HOLDER)' \
+	      --package-name="$${package_gnu}@PACKAGE@" \
+	      --package-version='@VERSION@' \
+	      --msgid-bugs-address="$$msgid_bugs_address" \
+	    ;; \
+	esac
 	test ! -f $(DOMAIN).po || { \
 	  if test -f $(srcdir)/$(DOMAIN).pot; then \
 	    sed -f remove-potcdate.sed < $(srcdir)/$(DOMAIN).pot > $(DOMAIN).1po && \
@@ -163,15 +189,15 @@ $(srcdir)/$(DOMAIN).pot:
 
 # This target rebuilds a PO file if $(DOMAIN).pot has changed.
 # Note that a PO file is not touched if it doesn't need to be changed.
-#$(POFILES): $(srcdir)/$(DOMAIN).pot
-#	@lang=`echo $@ | sed -e 's,.*/,,' -e 's/\.po$$//'`; \
-#	if test -f "$(srcdir)/$${lang}.po"; then \
-#	  test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
-#	  echo "$${cdcmd}$(MSGMERGE_UPDATE) $${lang}.po $(DOMAIN).pot"; \
-#	  cd $(srcdir) && $(MSGMERGE_UPDATE) $${lang}.po $(DOMAIN).pot; \
-#	else \
-#	  $(MAKE) $${lang}.po-create; \
-#	fi
+$(POFILES): $(srcdir)/$(DOMAIN).pot
+	@lang=`echo $@ | sed -e 's,.*/,,' -e 's/\.po$$//'`; \
+	if test -f "$(srcdir)/$${lang}.po"; then \
+	  test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
+	  echo "$${cdcmd}$(MSGMERGE_UPDATE) $${lang}.po $(DOMAIN).pot"; \
+	  cd $(srcdir) && $(MSGMERGE_UPDATE) $${lang}.po $(DOMAIN).pot; \
+	else \
+	  $(MAKE) $${lang}.po-create; \
+	fi
 
 
 install: install-exec install-data
@@ -312,7 +338,7 @@ mostlyclean:
 clean: mostlyclean
 
 distclean: clean
-	rm -f Makefile Makefile.in POTFILES *.mo en_US.po
+	rm -f Makefile Makefile.in POTFILES *.mo
 
 maintainer-clean: distclean
 	@echo "This command is intended for maintainers to use;"
@@ -392,9 +418,13 @@ $(DUMMYPOFILES):
 update-gmo: Makefile $(GMOFILES)
 	@:
 
+# Recreate Makefile by invoking config.status. Explicitly invoke the shell,
+# because execution permission bits may not work on the current file system.
+# Use @SHELL@, which is the shell determined by autoconf for the use by its
+# scripts, not $(SHELL) which is hardwired to /bin/sh and may be deficient.
 Makefile: Makefile.in.in Makevars $(top_builddir)/config.status @POMAKEFILEDEPS@
 	cd $(top_builddir) \
-	  && $(SHELL) ./config.status $(subdir)/$@.in po-directories
+	  && @SHELL@ ./config.status $(subdir)/$@.in po-directories
 
 force:
 

po/stamp-po

@@ -0,0 +1 @@
+timestamp