Update gettext Makefiles to 0.18

Signed-off-by: Dan McGee <dan@archlinux.org>

2 files changed, 256 insertions, 78 deletions

diff --git a/lib/libalpm/po/Makefile.in.in b/lib/libalpm/po/Makefile.in.in
index 6f2e2e94..83d8838a 100644
--- a/lib/libalpm/po/Makefile.in.in
+++ b/lib/libalpm/po/Makefile.in.in
@@ -1,5 +1,5 @@
 # Makefile for PO directory in any package using GNU gettext.
-# Copyright (C) 1995-1997, 2000-2003 by Ulrich Drepper <drepper@gnu.ai.mit.edu>
+# Copyright (C) 1995-1997, 2000-2007, 2009-2010 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
@@ -8,10 +8,12 @@
 # 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-0.13
+# Origin: gettext-0.18
+GETTEXT_MACRO_VERSION = 0.18
 
 PACKAGE = @PACKAGE@
 VERSION = @VERSION@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
 
 SHELL = /bin/sh
 @SET_MAKE@
@@ -22,18 +24,38 @@ VPATH = @srcdir@
 
 prefix = @prefix@
 exec_prefix = @exec_prefix@
-datadir = @datadir@
 datarootdir = @datarootdir@
-localedir = $(datadir)/locale
+datadir = @datadir@
+localedir = @localedir@
 gettextsrcdir = $(datadir)/gettext/po
 
 INSTALL = @INSTALL@
 INSTALL_DATA = @INSTALL_DATA@
-mkinstalldirs = @INSTALL@ -d
 
-GMSGFMT = @GMSGFMT@
-MSGFMT = @MSGFMT@
-XGETTEXT = @XGETTEXT@
+# We use $(mkdir_p).
+# In automake <= 1.9.x, $(mkdir_p) is defined either as "mkdir -p --" or as
+# "$(mkinstalldirs)" or as "$(install_sh) -d". For these automake versions,
+# @install_sh@ does not start with $(SHELL), so we add it.
+# In automake >= 1.10, @mkdir_p@ is derived from ${MKDIR_P}, which is defined
+# either as "/path/to/mkdir -p" or ".../install-sh -c -d". For these automake
+# versions, $(mkinstalldirs) and $(install_sh) are unused.
+mkinstalldirs = $(SHELL) @install_sh@ -d
+install_sh = $(SHELL) @install_sh@
+MKDIR_P = @MKDIR_P@
+mkdir_p = @mkdir_p@
+
+GMSGFMT_ = @GMSGFMT@
+GMSGFMT_no = @GMSGFMT@
+GMSGFMT_yes = @GMSGFMT_015@
+GMSGFMT = $(GMSGFMT_$(USE_MSGCTXT))
+MSGFMT_ = @MSGFMT@
+MSGFMT_no = @MSGFMT@
+MSGFMT_yes = @MSGFMT_015@
+MSGFMT = $(MSGFMT_$(USE_MSGCTXT))
+XGETTEXT_ = @XGETTEXT@
+XGETTEXT_no = @XGETTEXT@
+XGETTEXT_yes = @XGETTEXT_015@
+XGETTEXT = $(XGETTEXT_$(USE_MSGCTXT))
 MSGMERGE = msgmerge
 MSGMERGE_UPDATE = @MSGMERGE@ --update
 MSGINIT = msginit
@@ -46,7 +68,7 @@ UPDATEPOFILES = @UPDATEPOFILES@
 DUMMYPOFILES = @DUMMYPOFILES@
 DISTFILES.common = Makefile.in.in remove-potcdate.sin \
 $(DISTFILES.common.extra1) $(DISTFILES.common.extra2) $(DISTFILES.common.extra3)
-DISTFILES = $(DISTFILES.common) Makevars POTFILES.in $(DOMAIN).pot stamp-po \
+DISTFILES = $(DISTFILES.common) Makevars POTFILES.in \
 $(POFILES) $(GMOFILES) \
 $(DISTFILES.extra1) $(DISTFILES.extra2) $(DISTFILES.extra3)
 
@@ -57,7 +79,7 @@ CATALOGS = @CATALOGS@
 # Makevars gets inserted here. (Don't remove this line!)
 
 .SUFFIXES:
-.SUFFIXES: .po .gmo .mo .sed .sin .nop .po-update
+.SUFFIXES: .po .gmo .mo .sed .sin .nop .po-create .po-update
 
 .po.mo:
 	@echo "$(MSGFMT) -c -o $@ $<"; \
@@ -66,19 +88,32 @@ CATALOGS = @CATALOGS@
 .po.gmo:
 	@lang=`echo $* | sed -e 's,.*/,,'`; \
 	test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
-	echo "$${cdcmd}rm -f $${lang}.gmo && $(GMSGFMT) -c --statistics -o $${lang}.gmo $${lang}.po"; \
-	cd $(srcdir) && rm -f $${lang}.gmo && $(GMSGFMT) -c --statistics -o t-$${lang}.gmo $${lang}.po && mv t-$${lang}.gmo $${lang}.gmo
+	echo "$${cdcmd}rm -f $${lang}.gmo && $(GMSGFMT) -c --statistics --verbose -o $${lang}.gmo $${lang}.po"; \
+	cd $(srcdir) && rm -f $${lang}.gmo && $(GMSGFMT) -c --statistics --verbose -o t-$${lang}.gmo $${lang}.po && mv t-$${lang}.gmo $${lang}.gmo
 
 .sin.sed:
 	sed -e '/^#/d' $< > t-$@
 	mv t-$@ $@
 
 
-all: all-@USE_NLS@
+all: check-macro-version all-@USE_NLS@
 
 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
+# LINGUAS is empty in this case, i.e. $(POFILES) and $(GMOFILES) are empty.
+# In this case, stamp-po is a nop (i.e. a phony target).
+
 # stamp-po is a timestamp denoting the last time at which the CATALOGS have
 # been loosely updated. Its purpose is that when a developer or translator
 # checks out the package via CVS, and the $(DOMAIN).pot file is not in CVS,
@@ -88,10 +123,13 @@ all-no:
 # $(POFILES) has been designed to not touch files that don't need to be
 # changed.
 stamp-po: $(srcdir)/$(DOMAIN).pot
-	test -z "$(GMOFILES)" || $(MAKE) $(GMOFILES)
-	@echo "touch stamp-po"
-	@echo timestamp > stamp-poT
-	@mv stamp-poT stamp-po
+	test ! -f $(srcdir)/$(DOMAIN).pot || \
+	  test -z "$(GMOFILES)" || $(MAKE) $(GMOFILES)
+	@test ! -f $(srcdir)/$(DOMAIN).pot || { \
+	  echo "touch stamp-po" && \
+	  echo timestamp > stamp-poT && \
+	  mv stamp-poT stamp-po; \
+	}
 
 # Note: Target 'all' must not depend on target '$(DOMAIN).pot-update',
 # otherwise packages like GCC can not be built if only parts of the source
@@ -100,11 +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
-	$(XGETTEXT) --default-domain=$(DOMAIN) --directory=$(top_srcdir) \
-	  --add-comments=TRANSLATORS: $(XGETTEXT_OPTIONS) \
-	  --files-from=$(srcdir)/POTFILES.in \
-	  --copyright-holder='$(COPYRIGHT_HOLDER)' \
-	  --msgid-bugs-address='$(MSGID_BUGS_ADDRESS)'
+	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='$(PACKAGE_BUGREPORT)'; \
+	fi; \
+	case `$(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="$$msgid_bugs_address" \
+	    ;; \
+	esac
 	test ! -f $(DOMAIN).po || { \
 	  if test -f $(srcdir)/$(DOMAIN).pot; then \
 	    sed -f remove-potcdate.sed < $(srcdir)/$(DOMAIN).pot > $(DOMAIN).1po && \
@@ -130,16 +191,27 @@ $(srcdir)/$(DOMAIN).pot:
 # Note that a PO file is not touched if it doesn't need to be changed.
 $(POFILES): $(srcdir)/$(DOMAIN).pot
 	@lang=`echo $@ | sed -e 's,.*/,,' -e 's/\.po$$//'`; \
-	test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
-	echo "$${cdcmd}$(MSGMERGE_UPDATE) $${lang}.po $(DOMAIN).pot"; \
-	cd $(srcdir) && $(MSGMERGE_UPDATE) $${lang}.po $(DOMAIN).pot
+	if test -f "$(srcdir)/$${lang}.po"; then \
+	  test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
+	  echo "$${cdcmd}$(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) --lang=$${lang} $${lang}.po $(DOMAIN).pot"; \
+	  cd $(srcdir) \
+	    && { case `$(MSGMERGE_UPDATE) --version | sed 1q | sed -e 's,^[^0-9]*,,'` in \
+	           '' | 0.[0-9] | 0.[0-9].* | 0.1[0-7] | 0.1[0-7].*) \
+	             $(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) $${lang}.po $(DOMAIN).pot;; \
+	           *) \
+	             $(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) --lang=$${lang} $${lang}.po $(DOMAIN).pot;; \
+	         esac; \
+	       }; \
+	else \
+	  $(MAKE) $${lang}.po-create; \
+	fi
 
 
 install: install-exec install-data
 install-exec:
 install-data: install-data-@USE_NLS@
 	if test "$(PACKAGE)" = "gettext-tools"; then \
-	  $(mkinstalldirs) $(DESTDIR)$(gettextsrcdir); \
+	  $(mkdir_p) $(DESTDIR)$(gettextsrcdir); \
 	  for file in $(DISTFILES.common) Makevars.template; do \
 	    $(INSTALL_DATA) $(srcdir)/$$file \
 			    $(DESTDIR)$(gettextsrcdir)/$$file; \
@@ -152,13 +224,12 @@ install-data: install-data-@USE_NLS@
 	fi
 install-data-no: all
 install-data-yes: all
-	$(mkinstalldirs) $(DESTDIR)$(datadir)
 	@catalogs='$(CATALOGS)'; \
 	for cat in $$catalogs; do \
 	  cat=`basename $$cat`; \
 	  lang=`echo $$cat | sed -e 's/\.gmo$$//'`; \
 	  dir=$(localedir)/$$lang/LC_MESSAGES; \
-	  $(mkinstalldirs) $(DESTDIR)$$dir; \
+	  $(mkdir_p) $(DESTDIR)$$dir; \
 	  if test -r $$cat; then realcat=$$cat; else realcat=$(srcdir)/$$cat; fi; \
 	  $(INSTALL_DATA) $$realcat $(DESTDIR)$$dir/$(DOMAIN).mo; \
 	  echo "installing $$realcat as $(DESTDIR)$$dir/$(DOMAIN).mo"; \
@@ -198,19 +269,18 @@ installdirs: installdirs-exec installdirs-data
 installdirs-exec:
 installdirs-data: installdirs-data-@USE_NLS@
 	if test "$(PACKAGE)" = "gettext-tools"; then \
-	  $(mkinstalldirs) $(DESTDIR)$(gettextsrcdir); \
+	  $(mkdir_p) $(DESTDIR)$(gettextsrcdir); \
 	else \
 	  : ; \
 	fi
 installdirs-data-no:
 installdirs-data-yes:
-	$(mkinstalldirs) $(DESTDIR)$(datadir)
 	@catalogs='$(CATALOGS)'; \
 	for cat in $$catalogs; do \
 	  cat=`basename $$cat`; \
 	  lang=`echo $$cat | sed -e 's/\.gmo$$//'`; \
 	  dir=$(localedir)/$$lang/LC_MESSAGES; \
-	  $(mkinstalldirs) $(DESTDIR)$$dir; \
+	  $(mkdir_p) $(DESTDIR)$$dir; \
 	  for lc in '' $(EXTRA_LOCALE_CATEGORIES); do \
 	    if test -n "$$lc"; then \
 	      if (cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc 2>/dev/null) | grep ' -> ' >/dev/null; then \
@@ -285,11 +355,14 @@ dist distdir:
 	$(MAKE) update-po
 	@$(MAKE) dist2
 # This is a separate target because 'update-po' must be executed before.
-dist2: $(DISTFILES)
+dist2: stamp-po $(DISTFILES)
 	dists="$(DISTFILES)"; \
 	if test "$(PACKAGE)" = "gettext-tools"; then \
 	  dists="$$dists Makevars.template"; \
 	fi; \
+	if test -f $(srcdir)/$(DOMAIN).pot; then \
+	  dists="$$dists $(DOMAIN).pot stamp-po"; \
+	fi; \
 	if test -f $(srcdir)/ChangeLog; then \
 	  dists="$$dists ChangeLog"; \
 	fi; \
@@ -301,9 +374,9 @@ dist2: $(DISTFILES)
 	if test -f $(srcdir)/LINGUAS; then dists="$$dists LINGUAS"; fi; \
 	for file in $$dists; do \
 	  if test -f $$file; then \
-	    cp -p $$file $(distdir); \
+	    cp -p $$file $(distdir) || exit 1; \
 	  else \
-	    cp -p $(srcdir)/$$file $(distdir); \
+	    cp -p $(srcdir)/$$file $(distdir) || exit 1; \
 	  fi; \
 	done
 
@@ -312,6 +385,13 @@ update-po: Makefile
 	test -z "$(UPDATEPOFILES)" || $(MAKE) $(UPDATEPOFILES)
 	$(MAKE) update-gmo
 
+# General rule for creating PO files.
+
+.nop.po-create:
+	@lang=`echo $@ | sed -e 's/\.po-create$$//'`; \
+	echo "File $$lang.po does not exist. If you are a translator, you can create it through 'msginit'." 1>&2; \
+	exit 1
+
 # General rule for updating PO files.
 
 .nop.po-update:
@@ -320,9 +400,15 @@ update-po: Makefile
 	tmpdir=`pwd`; \
 	echo "$$lang:"; \
 	test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
-	echo "$${cdcmd}$(MSGMERGE) $$lang.po $(DOMAIN).pot -o $$lang.new.po"; \
+	echo "$${cdcmd}$(MSGMERGE) $(MSGMERGE_OPTIONS) --lang=$$lang $$lang.po $(DOMAIN).pot -o $$lang.new.po"; \
 	cd $(srcdir); \
-	if $(MSGMERGE) $$lang.po $(DOMAIN).pot -o $$tmpdir/$$lang.new.po; then \
+	if { case `$(MSGMERGE) --version | sed 1q | sed -e 's,^[^0-9]*,,'` in \
+	       '' | 0.[0-9] | 0.[0-9].* | 0.1[0-7] | 0.1[0-7].*) \
+	         $(MSGMERGE) $(MSGMERGE_OPTIONS) -o $$tmpdir/$$lang.new.po $$lang.po $(DOMAIN).pot;; \
+	       *) \
+	         $(MSGMERGE) $(MSGMERGE_OPTIONS) --lang=$$lang -o $$tmpdir/$$lang.new.po $$lang.po $(DOMAIN).pot;; \
+	     esac; \
+	   }; then \
 	  if cmp $$lang.po $$tmpdir/$$lang.new.po >/dev/null 2>&1; then \
 	    rm -f $$tmpdir/$$lang.new.po; \
 	  else \
@@ -343,10 +429,13 @@ $(DUMMYPOFILES):
 update-gmo: Makefile $(GMOFILES)
 	@:
 
-Makefile: Makefile.in.in $(top_builddir)/config.status @POMAKEFILEDEPS@
+# 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 $(top_builddir) \
-	  && CONFIG_FILES=$(subdir)/$@.in CONFIG_HEADERS= \
-	       $(SHELL) ./config.status
+	  && @SHELL@ ./config.status $(subdir)/$@.in po-directories
 
 force:
 
diff --git a/po/Makefile.in.in b/po/Makefile.in.in
index 6f2e2e94..83d8838a 100644
--- a/po/Makefile.in.in
+++ b/po/Makefile.in.in
@@ -1,5 +1,5 @@
 # Makefile for PO directory in any package using GNU gettext.
-# Copyright (C) 1995-1997, 2000-2003 by Ulrich Drepper <drepper@gnu.ai.mit.edu>
+# Copyright (C) 1995-1997, 2000-2007, 2009-2010 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
@@ -8,10 +8,12 @@
 # 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-0.13
+# Origin: gettext-0.18
+GETTEXT_MACRO_VERSION = 0.18
 
 PACKAGE = @PACKAGE@
 VERSION = @VERSION@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
 
 SHELL = /bin/sh
 @SET_MAKE@
@@ -22,18 +24,38 @@ VPATH = @srcdir@
 
 prefix = @prefix@
 exec_prefix = @exec_prefix@
-datadir = @datadir@
 datarootdir = @datarootdir@
-localedir = $(datadir)/locale
+datadir = @datadir@
+localedir = @localedir@
 gettextsrcdir = $(datadir)/gettext/po
 
 INSTALL = @INSTALL@
 INSTALL_DATA = @INSTALL_DATA@
-mkinstalldirs = @INSTALL@ -d
 
-GMSGFMT = @GMSGFMT@
-MSGFMT = @MSGFMT@
-XGETTEXT = @XGETTEXT@
+# We use $(mkdir_p).
+# In automake <= 1.9.x, $(mkdir_p) is defined either as "mkdir -p --" or as
+# "$(mkinstalldirs)" or as "$(install_sh) -d". For these automake versions,
+# @install_sh@ does not start with $(SHELL), so we add it.
+# In automake >= 1.10, @mkdir_p@ is derived from ${MKDIR_P}, which is defined
+# either as "/path/to/mkdir -p" or ".../install-sh -c -d". For these automake
+# versions, $(mkinstalldirs) and $(install_sh) are unused.
+mkinstalldirs = $(SHELL) @install_sh@ -d
+install_sh = $(SHELL) @install_sh@
+MKDIR_P = @MKDIR_P@
+mkdir_p = @mkdir_p@
+
+GMSGFMT_ = @GMSGFMT@
+GMSGFMT_no = @GMSGFMT@
+GMSGFMT_yes = @GMSGFMT_015@
+GMSGFMT = $(GMSGFMT_$(USE_MSGCTXT))
+MSGFMT_ = @MSGFMT@
+MSGFMT_no = @MSGFMT@
+MSGFMT_yes = @MSGFMT_015@
+MSGFMT = $(MSGFMT_$(USE_MSGCTXT))
+XGETTEXT_ = @XGETTEXT@
+XGETTEXT_no = @XGETTEXT@
+XGETTEXT_yes = @XGETTEXT_015@
+XGETTEXT = $(XGETTEXT_$(USE_MSGCTXT))
 MSGMERGE = msgmerge
 MSGMERGE_UPDATE = @MSGMERGE@ --update
 MSGINIT = msginit
@@ -46,7 +68,7 @@ UPDATEPOFILES = @UPDATEPOFILES@
 DUMMYPOFILES = @DUMMYPOFILES@
 DISTFILES.common = Makefile.in.in remove-potcdate.sin \
 $(DISTFILES.common.extra1) $(DISTFILES.common.extra2) $(DISTFILES.common.extra3)
-DISTFILES = $(DISTFILES.common) Makevars POTFILES.in $(DOMAIN).pot stamp-po \
+DISTFILES = $(DISTFILES.common) Makevars POTFILES.in \
 $(POFILES) $(GMOFILES) \
 $(DISTFILES.extra1) $(DISTFILES.extra2) $(DISTFILES.extra3)
 
@@ -57,7 +79,7 @@ CATALOGS = @CATALOGS@
 # Makevars gets inserted here. (Don't remove this line!)
 
 .SUFFIXES:
-.SUFFIXES: .po .gmo .mo .sed .sin .nop .po-update
+.SUFFIXES: .po .gmo .mo .sed .sin .nop .po-create .po-update
 
 .po.mo:
 	@echo "$(MSGFMT) -c -o $@ $<"; \
@@ -66,19 +88,32 @@ CATALOGS = @CATALOGS@
 .po.gmo:
 	@lang=`echo $* | sed -e 's,.*/,,'`; \
 	test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
-	echo "$${cdcmd}rm -f $${lang}.gmo && $(GMSGFMT) -c --statistics -o $${lang}.gmo $${lang}.po"; \
-	cd $(srcdir) && rm -f $${lang}.gmo && $(GMSGFMT) -c --statistics -o t-$${lang}.gmo $${lang}.po && mv t-$${lang}.gmo $${lang}.gmo
+	echo "$${cdcmd}rm -f $${lang}.gmo && $(GMSGFMT) -c --statistics --verbose -o $${lang}.gmo $${lang}.po"; \
+	cd $(srcdir) && rm -f $${lang}.gmo && $(GMSGFMT) -c --statistics --verbose -o t-$${lang}.gmo $${lang}.po && mv t-$${lang}.gmo $${lang}.gmo
 
 .sin.sed:
 	sed -e '/^#/d' $< > t-$@
 	mv t-$@ $@
 
 
-all: all-@USE_NLS@
+all: check-macro-version all-@USE_NLS@
 
 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
+# LINGUAS is empty in this case, i.e. $(POFILES) and $(GMOFILES) are empty.
+# In this case, stamp-po is a nop (i.e. a phony target).
+
 # stamp-po is a timestamp denoting the last time at which the CATALOGS have
 # been loosely updated. Its purpose is that when a developer or translator
 # checks out the package via CVS, and the $(DOMAIN).pot file is not in CVS,
@@ -88,10 +123,13 @@ all-no:
 # $(POFILES) has been designed to not touch files that don't need to be
 # changed.
 stamp-po: $(srcdir)/$(DOMAIN).pot
-	test -z "$(GMOFILES)" || $(MAKE) $(GMOFILES)
-	@echo "touch stamp-po"
-	@echo timestamp > stamp-poT
-	@mv stamp-poT stamp-po
+	test ! -f $(srcdir)/$(DOMAIN).pot || \
+	  test -z "$(GMOFILES)" || $(MAKE) $(GMOFILES)
+	@test ! -f $(srcdir)/$(DOMAIN).pot || { \
+	  echo "touch stamp-po" && \
+	  echo timestamp > stamp-poT && \
+	  mv stamp-poT stamp-po; \
+	}
 
 # Note: Target 'all' must not depend on target '$(DOMAIN).pot-update',
 # otherwise packages like GCC can not be built if only parts of the source
@@ -100,11 +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
-	$(XGETTEXT) --default-domain=$(DOMAIN) --directory=$(top_srcdir) \
-	  --add-comments=TRANSLATORS: $(XGETTEXT_OPTIONS) \
-	  --files-from=$(srcdir)/POTFILES.in \
-	  --copyright-holder='$(COPYRIGHT_HOLDER)' \
-	  --msgid-bugs-address='$(MSGID_BUGS_ADDRESS)'
+	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='$(PACKAGE_BUGREPORT)'; \
+	fi; \
+	case `$(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="$$msgid_bugs_address" \
+	    ;; \
+	esac
 	test ! -f $(DOMAIN).po || { \
 	  if test -f $(srcdir)/$(DOMAIN).pot; then \
 	    sed -f remove-potcdate.sed < $(srcdir)/$(DOMAIN).pot > $(DOMAIN).1po && \
@@ -130,16 +191,27 @@ $(srcdir)/$(DOMAIN).pot:
 # Note that a PO file is not touched if it doesn't need to be changed.
 $(POFILES): $(srcdir)/$(DOMAIN).pot
 	@lang=`echo $@ | sed -e 's,.*/,,' -e 's/\.po$$//'`; \
-	test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
-	echo "$${cdcmd}$(MSGMERGE_UPDATE) $${lang}.po $(DOMAIN).pot"; \
-	cd $(srcdir) && $(MSGMERGE_UPDATE) $${lang}.po $(DOMAIN).pot
+	if test -f "$(srcdir)/$${lang}.po"; then \
+	  test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
+	  echo "$${cdcmd}$(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) --lang=$${lang} $${lang}.po $(DOMAIN).pot"; \
+	  cd $(srcdir) \
+	    && { case `$(MSGMERGE_UPDATE) --version | sed 1q | sed -e 's,^[^0-9]*,,'` in \
+	           '' | 0.[0-9] | 0.[0-9].* | 0.1[0-7] | 0.1[0-7].*) \
+	             $(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) $${lang}.po $(DOMAIN).pot;; \
+	           *) \
+	             $(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) --lang=$${lang} $${lang}.po $(DOMAIN).pot;; \
+	         esac; \
+	       }; \
+	else \
+	  $(MAKE) $${lang}.po-create; \
+	fi
 
 
 install: install-exec install-data
 install-exec:
 install-data: install-data-@USE_NLS@
 	if test "$(PACKAGE)" = "gettext-tools"; then \
-	  $(mkinstalldirs) $(DESTDIR)$(gettextsrcdir); \
+	  $(mkdir_p) $(DESTDIR)$(gettextsrcdir); \
 	  for file in $(DISTFILES.common) Makevars.template; do \
 	    $(INSTALL_DATA) $(srcdir)/$$file \
 			    $(DESTDIR)$(gettextsrcdir)/$$file; \
@@ -152,13 +224,12 @@ install-data: install-data-@USE_NLS@
 	fi
 install-data-no: all
 install-data-yes: all
-	$(mkinstalldirs) $(DESTDIR)$(datadir)
 	@catalogs='$(CATALOGS)'; \
 	for cat in $$catalogs; do \
 	  cat=`basename $$cat`; \
 	  lang=`echo $$cat | sed -e 's/\.gmo$$//'`; \
 	  dir=$(localedir)/$$lang/LC_MESSAGES; \
-	  $(mkinstalldirs) $(DESTDIR)$$dir; \
+	  $(mkdir_p) $(DESTDIR)$$dir; \
 	  if test -r $$cat; then realcat=$$cat; else realcat=$(srcdir)/$$cat; fi; \
 	  $(INSTALL_DATA) $$realcat $(DESTDIR)$$dir/$(DOMAIN).mo; \
 	  echo "installing $$realcat as $(DESTDIR)$$dir/$(DOMAIN).mo"; \
@@ -198,19 +269,18 @@ installdirs: installdirs-exec installdirs-data
 installdirs-exec:
 installdirs-data: installdirs-data-@USE_NLS@
 	if test "$(PACKAGE)" = "gettext-tools"; then \
-	  $(mkinstalldirs) $(DESTDIR)$(gettextsrcdir); \
+	  $(mkdir_p) $(DESTDIR)$(gettextsrcdir); \
 	else \
 	  : ; \
 	fi
 installdirs-data-no:
 installdirs-data-yes:
-	$(mkinstalldirs) $(DESTDIR)$(datadir)
 	@catalogs='$(CATALOGS)'; \
 	for cat in $$catalogs; do \
 	  cat=`basename $$cat`; \
 	  lang=`echo $$cat | sed -e 's/\.gmo$$//'`; \
 	  dir=$(localedir)/$$lang/LC_MESSAGES; \
-	  $(mkinstalldirs) $(DESTDIR)$$dir; \
+	  $(mkdir_p) $(DESTDIR)$$dir; \
 	  for lc in '' $(EXTRA_LOCALE_CATEGORIES); do \
 	    if test -n "$$lc"; then \
 	      if (cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc 2>/dev/null) | grep ' -> ' >/dev/null; then \
@@ -285,11 +355,14 @@ dist distdir:
 	$(MAKE) update-po
 	@$(MAKE) dist2
 # This is a separate target because 'update-po' must be executed before.
-dist2: $(DISTFILES)
+dist2: stamp-po $(DISTFILES)
 	dists="$(DISTFILES)"; \
 	if test "$(PACKAGE)" = "gettext-tools"; then \
 	  dists="$$dists Makevars.template"; \
 	fi; \
+	if test -f $(srcdir)/$(DOMAIN).pot; then \
+	  dists="$$dists $(DOMAIN).pot stamp-po"; \
+	fi; \
 	if test -f $(srcdir)/ChangeLog; then \
 	  dists="$$dists ChangeLog"; \
 	fi; \
@@ -301,9 +374,9 @@ dist2: $(DISTFILES)
 	if test -f $(srcdir)/LINGUAS; then dists="$$dists LINGUAS"; fi; \
 	for file in $$dists; do \
 	  if test -f $$file; then \
-	    cp -p $$file $(distdir); \
+	    cp -p $$file $(distdir) || exit 1; \
 	  else \
-	    cp -p $(srcdir)/$$file $(distdir); \
+	    cp -p $(srcdir)/$$file $(distdir) || exit 1; \
 	  fi; \
 	done
 
@@ -312,6 +385,13 @@ update-po: Makefile
 	test -z "$(UPDATEPOFILES)" || $(MAKE) $(UPDATEPOFILES)
 	$(MAKE) update-gmo
 
+# General rule for creating PO files.
+
+.nop.po-create:
+	@lang=`echo $@ | sed -e 's/\.po-create$$//'`; \
+	echo "File $$lang.po does not exist. If you are a translator, you can create it through 'msginit'." 1>&2; \
+	exit 1
+
 # General rule for updating PO files.
 
 .nop.po-update:
@@ -320,9 +400,15 @@ update-po: Makefile
 	tmpdir=`pwd`; \
 	echo "$$lang:"; \
 	test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
-	echo "$${cdcmd}$(MSGMERGE) $$lang.po $(DOMAIN).pot -o $$lang.new.po"; \
+	echo "$${cdcmd}$(MSGMERGE) $(MSGMERGE_OPTIONS) --lang=$$lang $$lang.po $(DOMAIN).pot -o $$lang.new.po"; \
 	cd $(srcdir); \
-	if $(MSGMERGE) $$lang.po $(DOMAIN).pot -o $$tmpdir/$$lang.new.po; then \
+	if { case `$(MSGMERGE) --version | sed 1q | sed -e 's,^[^0-9]*,,'` in \
+	       '' | 0.[0-9] | 0.[0-9].* | 0.1[0-7] | 0.1[0-7].*) \
+	         $(MSGMERGE) $(MSGMERGE_OPTIONS) -o $$tmpdir/$$lang.new.po $$lang.po $(DOMAIN).pot;; \
+	       *) \
+	         $(MSGMERGE) $(MSGMERGE_OPTIONS) --lang=$$lang -o $$tmpdir/$$lang.new.po $$lang.po $(DOMAIN).pot;; \
+	     esac; \
+	   }; then \
 	  if cmp $$lang.po $$tmpdir/$$lang.new.po >/dev/null 2>&1; then \
 	    rm -f $$tmpdir/$$lang.new.po; \
 	  else \
@@ -343,10 +429,13 @@ $(DUMMYPOFILES):
 update-gmo: Makefile $(GMOFILES)
 	@:
 
-Makefile: Makefile.in.in $(top_builddir)/config.status @POMAKEFILEDEPS@
+# 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 $(top_builddir) \
-	  && CONFIG_FILES=$(subdir)/$@.in CONFIG_HEADERS= \
-	       $(SHELL) ./config.status
+	  && @SHELL@ ./config.status $(subdir)/$@.in po-directories
 
 force: