Added support for internationalization. Tested by translating a few gui strings to french.

14 files changed, 614 insertions, 14 deletions

diff --git a/ChangeLog b/ChangeLog
index 5602c4e1..267e0e5e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2007-08-05  Guillaume Melquiond  <guillaume.melquiond@gmail.com>
+
+	* configure.ac, Makefile.am, po, src/Makefile.am, src/main.cpp,
+	src/resources/gettext.h: Added support for internationalization.
+	* src/gui/inventorywindow.cpp: Marked a few strings as translatable for
+	testing purpose.
+	* po/tmw.pot: Generated the main template.
+	* po/LINGUAS, po/fr.po: Added the french translation.
+
 2007-08-01  Guillaume Melquiond  <guillaume.melquiond@gmail.com>
 
 	* src/item.cpp, src/item.h: Fixed update of equipment flag, so that
diff --git a/Makefile.am b/Makefile.am
index 7306c71f..ea85bb48 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,5 +1,5 @@
 # Subdirectories to build
-SUBDIRS = data docs src
+SUBDIRS = data docs po src
 
 desktopdir = $(datadir)/applications
 
diff --git a/configure.ac b/configure.ac
index 21d9ef56..b6803c11 100755
--- a/configure.ac
+++ b/configure.ac
@@ -1,20 +1,15 @@
 AC_PREREQ(2.59)
-AC_INIT([The Mana World], [0.1.0], [elvenprogrammer@gmail.com], [tmw])
+AC_INIT([The Mana World], [0.1.0], [themanaworld-devel@lists.sourceforge.net], [tmw])
 AM_INIT_AUTOMAKE
 AC_CONFIG_HEADERS([config.h:config.h.in])
 AC_LANG_CPLUSPLUS
 
 # Checks for programs.
 AC_PROG_CXX
-AC_PROG_CC
 AC_PROG_INSTALL
-AC_PROG_MAKE_SET
 
 # Checks for typedefs, structures, and compiler characteristics.
-AC_HEADER_STDBOOL
-AC_C_CONST
 AC_HEADER_TIME
-AC_C_VOLATILE
 
 # Checks for library functions.
 AC_FUNC_ERROR_AT_LINE
@@ -24,6 +19,9 @@ AC_FUNC_SELECT_ARGTYPES
 AC_FUNC_VPRINTF
 AC_CHECK_FUNCS([atexit floor getcwd gethostbyname memset mkdir select socket])
 
+# Checks for internationalization support
+AM_GNU_GETTEXT([external])
+
 # Search for *-config
 AC_PATH_PROG(SDL_CONFIG, sdl-config)
 AC_PATH_PROG(PKG_CONFIG, pkg-config)
@@ -98,6 +96,7 @@ AC_ARG_WITH(opengl,[  --without-opengl        don't use OpenGL ] )
 if test "x$with_opengl" == "xno"; then
     with_opengl=no
 else
+    with_opengl=yes
     AC_CHECK_LIB([GL], [glBegin], ,
     AC_MSG_ERROR([ *** Unable to find OpenGL library]))
     AC_CHECK_LIB([guichan_opengl], [gcnOpenGL], ,
@@ -117,6 +116,7 @@ data/graphics/tiles/Makefile
 data/help/Makefile
 data/icons/Makefile
 docs/Makefile
+po/Makefile.in
 ])
 
 AC_OUTPUT
diff --git a/po/LINGUAS b/po/LINGUAS
new file mode 100644
index 00000000..b69b6a28
--- /dev/null
+++ b/po/LINGUAS
@@ -0,0 +1,3 @@
+# Set of available languages.
+fr
+
diff --git a/po/Makefile.in.in b/po/Makefile.in.in
new file mode 100644
index 00000000..5022b8b1
--- /dev/null
+++ b/po/Makefile.in.in
@@ -0,0 +1,403 @@
+# Makefile for PO directory in any package using GNU gettext.
+# Copyright (C) 1995-1997, 2000-2006 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
+# License but which still want to provide support for the GNU gettext
+# functionality.
+# 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
+
+PACKAGE = @PACKAGE@
+VERSION = @VERSION@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+
+SHELL = /bin/sh
+@SET_MAKE@
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+datarootdir = @datarootdir@
+datadir = @datadir@
+localedir = @localedir@
+gettextsrcdir = $(datadir)/gettext/po
+
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+
+# 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
+MSGCONV = msgconv
+MSGFILTER = msgfilter
+
+POFILES = @POFILES@
+GMOFILES = @GMOFILES@
+UPDATEPOFILES = @UPDATEPOFILES@
+DUMMYPOFILES = @DUMMYPOFILES@
+DISTFILES.common = Makefile.in.in remove-potcdate.sin \
+$(DISTFILES.common.extra1) $(DISTFILES.common.extra2) $(DISTFILES.common.extra3)
+DISTFILES = $(DISTFILES.common) Makevars POTFILES.in \
+$(POFILES) $(GMOFILES) \
+$(DISTFILES.extra1) $(DISTFILES.extra2) $(DISTFILES.extra3)
+
+POTFILES = \
+
+CATALOGS = @CATALOGS@
+
+# Makevars gets inserted here. (Don't remove this line!)
+
+.SUFFIXES:
+.SUFFIXES: .po .gmo .mo .sed .sin .nop .po-create .po-update
+
+.po.mo:
+	@echo "$(MSGFMT) -c -o $@ $<"; \
+	$(MSGFMT) -c -o t-$@ $< && mv t-$@ $@
+
+.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
+
+.sin.sed:
+	sed -e '/^#/d' $< > t-$@
+	mv t-$@ $@
+
+
+all: all-@USE_NLS@
+
+all-yes: stamp-po
+all-no:
+
+# $(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,
+# "make" will update the $(DOMAIN).pot and the $(CATALOGS), but subsequent
+# invocations of "make" will do nothing. This timestamp would not be necessary
+# if updating the $(CATALOGS) would always touch them; however, the rule for
+# $(POFILES) has been designed to not touch files that don't need to be
+# changed.
+stamp-po: $(srcdir)/$(DOMAIN).pot
+	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
+# have been downloaded.
+
+# 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 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"
+	test ! -f $(DOMAIN).po || { \
+	  if test -f $(srcdir)/$(DOMAIN).pot; then \
+	    sed -f remove-potcdate.sed < $(srcdir)/$(DOMAIN).pot > $(DOMAIN).1po && \
+	    sed -f remove-potcdate.sed < $(DOMAIN).po > $(DOMAIN).2po && \
+	    if cmp $(DOMAIN).1po $(DOMAIN).2po >/dev/null 2>&1; then \
+	      rm -f $(DOMAIN).1po $(DOMAIN).2po $(DOMAIN).po; \
+	    else \
+	      rm -f $(DOMAIN).1po $(DOMAIN).2po $(srcdir)/$(DOMAIN).pot && \
+	      mv $(DOMAIN).po $(srcdir)/$(DOMAIN).pot; \
+	    fi; \
+	  else \
+	    mv $(DOMAIN).po $(srcdir)/$(DOMAIN).pot; \
+	  fi; \
+	}
+
+# This rule has no dependencies: we don't need to update $(DOMAIN).pot at
+# every "make" invocation, only create it when it is missing.
+# Only "make $(DOMAIN).pot-update" or "make dist" will force an update.
+$(srcdir)/$(DOMAIN).pot:
+	$(MAKE) $(DOMAIN).pot-update
+
+# 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
+
+
+install: install-exec install-data
+install-exec:
+install-data: install-data-@USE_NLS@
+	if test "$(PACKAGE)" = "gettext-tools"; then \
+	  $(mkdir_p) $(DESTDIR)$(gettextsrcdir); \
+	  for file in $(DISTFILES.common) Makevars.template; do \
+	    $(INSTALL_DATA) $(srcdir)/$$file \
+			    $(DESTDIR)$(gettextsrcdir)/$$file; \
+	  done; \
+	  for file in Makevars; do \
+	    rm -f $(DESTDIR)$(gettextsrcdir)/$$file; \
+	  done; \
+	else \
+	  : ; \
+	fi
+install-data-no: all
+install-data-yes: all
+	$(mkdir_p) $(DESTDIR)$(datadir)
+	@catalogs='$(CATALOGS)'; \
+	for cat in $$catalogs; do \
+	  cat=`basename $$cat`; \
+	  lang=`echo $$cat | sed -e 's/\.gmo$$//'`; \
+	  dir=$(localedir)/$$lang/LC_MESSAGES; \
+	  $(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"; \
+	  for lc in '' $(EXTRA_LOCALE_CATEGORIES); do \
+	    if test -n "$$lc"; then \
+	      if (cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc 2>/dev/null) | grep ' -> ' >/dev/null; then \
+	        link=`cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc | sed -e 's/^.* -> //'`; \
+	        mv $(DESTDIR)$(localedir)/$$lang/$$lc $(DESTDIR)$(localedir)/$$lang/$$lc.old; \
+	        mkdir $(DESTDIR)$(localedir)/$$lang/$$lc; \
+	        (cd $(DESTDIR)$(localedir)/$$lang/$$lc.old && \
+	         for file in *; do \
+	           if test -f $$file; then \
+	             ln -s ../$$link/$$file $(DESTDIR)$(localedir)/$$lang/$$lc/$$file; \
+	           fi; \
+	         done); \
+	        rm -f $(DESTDIR)$(localedir)/$$lang/$$lc.old; \
+	      else \
+	        if test -d $(DESTDIR)$(localedir)/$$lang/$$lc; then \
+	          :; \
+	        else \
+	          rm -f $(DESTDIR)$(localedir)/$$lang/$$lc; \
+	          mkdir $(DESTDIR)$(localedir)/$$lang/$$lc; \
+	        fi; \
+	      fi; \
+	      rm -f $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo; \
+	      ln -s ../LC_MESSAGES/$(DOMAIN).mo $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo 2>/dev/null || \
+	      ln $(DESTDIR)$(localedir)/$$lang/LC_MESSAGES/$(DOMAIN).mo $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo 2>/dev/null || \
+	      cp -p $(DESTDIR)$(localedir)/$$lang/LC_MESSAGES/$(DOMAIN).mo $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo; \
+	      echo "installing $$realcat link as $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo"; \
+	    fi; \
+	  done; \
+	done
+
+install-strip: install
+
+installdirs: installdirs-exec installdirs-data
+installdirs-exec:
+installdirs-data: installdirs-data-@USE_NLS@
+	if test "$(PACKAGE)" = "gettext-tools"; then \
+	  $(mkdir_p) $(DESTDIR)$(gettextsrcdir); \
+	else \
+	  : ; \
+	fi
+installdirs-data-no:
+installdirs-data-yes:
+	$(mkdir_p) $(DESTDIR)$(datadir)
+	@catalogs='$(CATALOGS)'; \
+	for cat in $$catalogs; do \
+	  cat=`basename $$cat`; \
+	  lang=`echo $$cat | sed -e 's/\.gmo$$//'`; \
+	  dir=$(localedir)/$$lang/LC_MESSAGES; \
+	  $(mkdir_p) $(DESTDIR)$$dir; \
+	  for lc in '' $(EXTRA_LOCALE_CATEGORIES); do \
+	    if test -n "$$lc"; then \
+	      if (cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc 2>/dev/null) | grep ' -> ' >/dev/null; then \
+	        link=`cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc | sed -e 's/^.* -> //'`; \
+	        mv $(DESTDIR)$(localedir)/$$lang/$$lc $(DESTDIR)$(localedir)/$$lang/$$lc.old; \
+	        mkdir $(DESTDIR)$(localedir)/$$lang/$$lc; \
+	        (cd $(DESTDIR)$(localedir)/$$lang/$$lc.old && \
+	         for file in *; do \
+	           if test -f $$file; then \
+	             ln -s ../$$link/$$file $(DESTDIR)$(localedir)/$$lang/$$lc/$$file; \
+	           fi; \
+	         done); \
+	        rm -f $(DESTDIR)$(localedir)/$$lang/$$lc.old; \
+	      else \
+	        if test -d $(DESTDIR)$(localedir)/$$lang/$$lc; then \
+	          :; \
+	        else \
+	          rm -f $(DESTDIR)$(localedir)/$$lang/$$lc; \
+	          mkdir $(DESTDIR)$(localedir)/$$lang/$$lc; \
+	        fi; \
+	      fi; \
+	    fi; \
+	  done; \
+	done
+
+# Define this as empty until I found a useful application.
+installcheck:
+
+uninstall: uninstall-exec uninstall-data
+uninstall-exec:
+uninstall-data: uninstall-data-@USE_NLS@
+	if test "$(PACKAGE)" = "gettext-tools"; then \
+	  for file in $(DISTFILES.common) Makevars.template; do \
+	    rm -f $(DESTDIR)$(gettextsrcdir)/$$file; \
+	  done; \
+	else \
+	  : ; \
+	fi
+uninstall-data-no:
+uninstall-data-yes:
+	catalogs='$(CATALOGS)'; \
+	for cat in $$catalogs; do \
+	  cat=`basename $$cat`; \
+	  lang=`echo $$cat | sed -e 's/\.gmo$$//'`; \
+	  for lc in LC_MESSAGES $(EXTRA_LOCALE_CATEGORIES); do \
+	    rm -f $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo; \
+	  done; \
+	done
+
+check: all
+
+info dvi ps pdf html tags TAGS ctags CTAGS ID:
+
+mostlyclean:
+	rm -f remove-potcdate.sed
+	rm -f stamp-poT
+	rm -f core core.* $(DOMAIN).po $(DOMAIN).1po $(DOMAIN).2po *.new.po
+	rm -fr *.o
+
+clean: mostlyclean
+
+distclean: clean
+	rm -f Makefile Makefile.in POTFILES *.mo
+
+maintainer-clean: distclean
+	@echo "This command is intended for maintainers to use;"
+	@echo "it deletes files that may require special tools to rebuild."
+	rm -f stamp-po $(GMOFILES)
+
+distdir = $(top_builddir)/$(PACKAGE)-$(VERSION)/$(subdir)
+dist distdir:
+	$(MAKE) update-po
+	@$(MAKE) dist2
+# This is a separate target because 'update-po' must be executed before.
+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="$$dists ChangeLog"; \
+	fi; \
+	for i in 0 1 2 3 4 5 6 7 8 9; do \
+	  if test -f $(srcdir)/ChangeLog.$$i; then \
+	    dists="$$dists ChangeLog.$$i"; \
+	  fi; \
+	done; \
+	if test -f $(srcdir)/LINGUAS; then dists="$$dists LINGUAS"; fi; \
+	for file in $$dists; do \
+	  if test -f $$file; then \
+	    cp -p $$file $(distdir) || exit 1; \
+	  else \
+	    cp -p $(srcdir)/$$file $(distdir) || exit 1; \
+	  fi; \
+	done
+
+update-po: Makefile
+	$(MAKE) $(DOMAIN).pot-update
+	test -z "$(UPDATEPOFILES)" || $(MAKE) $(UPDATEPOFILES)
+	$(MAKE) update-gmo
+
+# General rule for creating PO files.
+
+.nop.po-create:
+	@lang=`echo $@ | sed -e 's/\.po-create$$//'`; \
+	echo "File $$lang.po does not exist. If you are a translator, you can create it through 'msginit'." 1>&2; \
+	exit 1
+
+# General rule for updating PO files.
+
+.nop.po-update:
+	@lang=`echo $@ | sed -e 's/\.po-update$$//'`; \
+	if test "$(PACKAGE)" = "gettext-tools"; then PATH=`pwd`/../src:$$PATH; fi; \
+	tmpdir=`pwd`; \
+	echo "$$lang:"; \
+	test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
+	echo "$${cdcmd}$(MSGMERGE) $$lang.po $(DOMAIN).pot -o $$lang.new.po"; \
+	cd $(srcdir); \
+	if $(MSGMERGE) $$lang.po $(DOMAIN).pot -o $$tmpdir/$$lang.new.po; then \
+	  if cmp $$lang.po $$tmpdir/$$lang.new.po >/dev/null 2>&1; then \
+	    rm -f $$tmpdir/$$lang.new.po; \
+	  else \
+	    if mv -f $$tmpdir/$$lang.new.po $$lang.po; then \
+	      :; \
+	    else \
+	      echo "msgmerge for $$lang.po failed: cannot move $$tmpdir/$$lang.new.po to $$lang.po" 1>&2; \
+	      exit 1; \
+	    fi; \
+	  fi; \
+	else \
+	  echo "msgmerge for $$lang.po failed!" 1>&2; \
+	  rm -f $$tmpdir/$$lang.new.po; \
+	fi
+
+$(DUMMYPOFILES):
+
+update-gmo: Makefile $(GMOFILES)
+	@:
+
+Makefile: Makefile.in.in Makevars $(top_builddir)/config.status @POMAKEFILEDEPS@
+	cd $(top_builddir) \
+	  && $(SHELL) ./config.status $(subdir)/$@.in po-directories
+
+force:
+
+# Tell versions [3.59,3.63) of GNU make not to export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/po/Makevars b/po/Makevars
new file mode 100644
index 00000000..a72f85a3
--- /dev/null
+++ b/po/Makevars
@@ -0,0 +1,43 @@
+# Makefile variables for PO directory in any package using GNU gettext.
+
+# Usually the message domain is the same as the package name.
+#PACKAGE = $(PACKAGE_NAME)
+DOMAIN = $(PACKAGE)
+#VERSION = $(PACKAGE_VERSION)
+
+# These two variables depend on the location of this directory.
+subdir = po
+top_builddir = ..
+
+# These options get passed to xgettext.
+XGETTEXT_OPTIONS = --keyword=_ --keyword=N_
+
+# This is the copyright holder that gets inserted into the header of the
+# $(DOMAIN).pot file.  Set this to the copyright holder of the surrounding
+# package.  (Note that the msgstr strings, extracted from the package's
+# sources, belong to the copyright holder of the package.)  Translators are
+# expected to transfer the copyright for their translations to this person
+# or entity, or to disclaim their copyright.  The empty string stands for
+# the public domain; in this case the translators are expected to disclaim
+# their copyright.
+COPYRIGHT_HOLDER = The Mana World Development Team
+
+# This is the email address or URL to which the translators shall report
+# bugs in the untranslated strings:
+# - Strings which are not entire sentences, see the maintainer guidelines
+#   in the GNU gettext documentation, section 'Preparing Strings'.
+# - Strings which use unclear terms or require additional context to be
+#   understood.
+# - Strings which make invalid assumptions about notation of date, time or
+#   money.
+# - Pluralisation problems.
+# - Incorrect English spelling.
+# - Incorrect formatting.
+# It can be your email address, or a mailing list address where translators
+# can write to without being subscribed, or the URL of a web page through
+# which the translators can contact you.
+MSGID_BUGS_ADDRESS =
+
+# This is the list of locale categories, beyond LC_MESSAGES, for which the
+# message catalogs shall be used.  It is usually empty.
+EXTRA_LOCALE_CATEGORIES =
diff --git a/po/POTFILES.in b/po/POTFILES.in
new file mode 100644
index 00000000..fb050667
--- /dev/null
+++ b/po/POTFILES.in
@@ -0,0 +1,4 @@
+# List of source files which contain translatable strings.
+
+src/gui/inventorywindow.cpp
+
diff --git a/po/fr.po b/po/fr.po
new file mode 100644
index 00000000..d6c07b78
--- /dev/null
+++ b/po/fr.po
@@ -0,0 +1,33 @@
+# French translation of The Mana World.
+# Copyright (C) 2007 The Mana World Development Team
+# This file is distributed under the same license as the The Mana World package.
+# Guillaume Melquiond <guillaume.melquiond@gmail.com>, 2007.
+# , fuzzy
+# 
+# 
+msgid ""
+msgstr ""
+"Project-Id-Version: The Mana World 0.1.0\n"
+"Report-Msgid-Bugs-To: themanaworld-devel@lists.sourceforge.net\n"
+"POT-Creation-Date: 2007-08-05 18:09+0200\n"
+"PO-Revision-Date: 2007-08-05 17:42+0200\n"
+"Language-Team: French\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: src/gui/inventorywindow.cpp:48
+msgid "Inventory"
+msgstr "Inventaire"
+
+#: src/gui/inventorywindow.cpp:56 src/gui/inventorywindow.cpp:216
+msgid "Use"
+msgstr "Utiliser"
+
+#: src/gui/inventorywindow.cpp:57
+msgid "Drop"
+msgstr "Lâcher"
+
+#: src/gui/inventorywindow.cpp:213
+msgid "Equip"
+msgstr "Équiper"
diff --git a/po/remove-potcdate.sin b/po/remove-potcdate.sin
new file mode 100644
index 00000000..2436c49e
--- /dev/null
+++ b/po/remove-potcdate.sin
@@ -0,0 +1,19 @@
+# Sed script that remove the POT-Creation-Date line in the header entry
+# from a POT file.
+#
+# The distinction between the first and the following occurrences of the
+# pattern is achieved by looking at the hold space.
+/^"POT-Creation-Date: .*"$/{
+x
+# Test if the hold space is empty.
+s/P/P/
+ta
+# Yes it was empty. First occurrence. Remove the line.
+g
+d
+bb
+:a
+# The hold space was nonempty. Following occurrences. Do nothing.
+x
+:b
+}
diff --git a/po/tmw.pot b/po/tmw.pot
new file mode 100644
index 00000000..7fa6e432
--- /dev/null
+++ b/po/tmw.pot
@@ -0,0 +1,33 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR The Mana World Development Team
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: themanaworld-devel@lists.sourceforge.net\n"
+"POT-Creation-Date: 2007-08-05 18:09+0200\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=CHARSET\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: src/gui/inventorywindow.cpp:48
+msgid "Inventory"
+msgstr ""
+
+#: src/gui/inventorywindow.cpp:56 src/gui/inventorywindow.cpp:216
+msgid "Use"
+msgstr ""
+
+#: src/gui/inventorywindow.cpp:57
+msgid "Drop"
+msgstr ""
+
+#: src/gui/inventorywindow.cpp:213
+msgid "Equip"
+msgstr ""
diff --git a/src/Makefile.am b/src/Makefile.am
index 0ccdd777..42b9d262 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -194,6 +194,7 @@ tmw_SOURCES = gui/widgets/dropdown.cpp \
 	      resources/equipmentdb.cpp \
 	      resources/equipmentdb.h \
 	      resources/equipmentinfo.h \
+	      resources/gettext.h \
 	      resources/image.cpp \
 	      resources/image.h \
 	      resources/imagewriter.cpp \
@@ -306,4 +307,5 @@ tmw_SOURCES = gui/widgets/dropdown.cpp \
 # set the include path found by configure
 INCLUDES =					\
 	$(all_includes)				\
-	-DTMW_DATADIR=\""$(pkgdatadir)/"\"
+	-DTMW_DATADIR=\""$(pkgdatadir)/"\"      \
+	-DLOCALEDIR=\""$(localedir)"\"
diff --git a/src/gui/inventorywindow.cpp b/src/gui/inventorywindow.cpp
index 2ad35095..95a669a9 100644
--- a/src/gui/inventorywindow.cpp
+++ b/src/gui/inventorywindow.cpp
@@ -39,22 +39,22 @@
 #include "../item.h"
 #include "../localplayer.h"
 
+#include "../resources/gettext.h"
 #include "../resources/iteminfo.h"
 
 #include "../utils/tostring.h"
 
 InventoryWindow::InventoryWindow():
-    Window("Inventory")
+    Window(_("Inventory"))
 {
-    setWindowName("Inventory");
     setResizable(true);
     setMinWidth(240);
     setMinHeight(172);
     // If you adjust these defaults, don't forget to adjust the trade window's.
     setDefaultSize(115, 25, 322, 172);
 
-    mUseButton = new Button("Use", "use", this);
-    mDropButton = new Button("Drop", "drop", this);
+    mUseButton = new Button(_("Use"), "use", this);
+    mDropButton = new Button(_("Drop"), "drop", this);
 
     mItems = new ItemContainer(player_node->mInventory.get());
     mItems->addSelectionListener(this);
@@ -210,10 +210,10 @@ void InventoryWindow::updateButtons()
 
     if ((item = mItems->getItem()) && item->isEquipment())
     {
-        mUseButton->setCaption("Equip");
+        mUseButton->setCaption(_("Equip"));
     }
     else {
-        mUseButton ->setCaption("Use");
+        mUseButton ->setCaption(_("Use"));
     }
 
     mUseButton->setEnabled(!!item);
diff --git a/src/main.cpp b/src/main.cpp
index 8b631d56..018d93dd 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -85,6 +85,7 @@
 #include "net/gameserver/gameserver.h"
 
 #include "resources/equipmentdb.h"
+#include "resources/gettext.h"
 #include "resources/image.h"
 #include "resources/itemdb.h"
 #include "resources/monsterdb.h"
@@ -666,6 +667,12 @@ int main(int argc, char *argv[])
         return 0;
     }
 
+#if ENABLE_NLS
+    setlocale(LC_MESSAGES, "");
+    bindtextdomain(PACKAGE, LOCALEDIR);
+    textdomain(PACKAGE);
+#endif
+
     // Initialize PhysicsFS
     PHYSFS_init(argv[0]);
 
diff --git a/src/resources/gettext.h b/src/resources/gettext.h
new file mode 100644
index 00000000..4b893a6f
--- /dev/null
+++ b/src/resources/gettext.h
@@ -0,0 +1,44 @@
+/*
+ *  The Mana World
+ *  Copyright 2007 The Mana World Development Team
+ *
+ *  This file is part of The Mana World.
+ *
+ *  The Mana World is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  The Mana World is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with The Mana World; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ *  $Id$
+ */
+
+#ifndef _TMW_RESOURCES_GETTEXT_H
+#define _TMW_RESOURCES_GETTEXT_H
+
+#include "../../config.h"
+
+#if ENABLE_NLS
+
+#include <libintl.h>
+
+#define _(s) ((char const *)gettext(s))
+#define N_(s) ((char const *)s)
+
+#else
+
+#define gettext(s) ((char const *)s)
+#define _(s) ((char const *)s)
+#define N_(s) ((char const *)s)
+
+#endif
+
+#endif