Adds gettext support in Grub. Building system needs to be improved and maybe userland utilites improved.

YYYY-MM-DD  Carles Pina i Estany <carles@pina.cat>

	* Makefile.in: Add uptrans target to help to update .pot file
	* conf/common.rmk: Add grub-gettext_lib target, dependency and SOURCES, CFLAGS, LDFLAGS
	* kern/misc.c: Define grub_gettext symbol and add implement grub_gettext_dummy function
	* po/TODO: Temporary file with instructions of what Makefile.in will do
	* po/ca.po: Catalan translation stub
	* include/grub/misc.h: Define macro _(char *s). Declare grub_gettext_dummy and grub_gettext
	* gettext/gettext.c: New file with gettext implementation
	* normal/menu.c (print_message): add _( ) to some strings
	* util/grub.d/10_linux.in: include grub-gettext_lib file. For the Linux menuentry, call eval_gettext
	* util/grub.d/00_header.in: add locale_prefix and gettext locale detection and setting up the access to the mo directory
	* util/grub-mkconfig_lib.in: add get_locale_lang
	* util/grub-gettext_lib.in: new file

util/grub-gettext_lib.in

@@ -0,0 +1,23 @@
+# Configuration of grub-gettext
+# Copyright (C) 2009  Free Software Foundation, Inc.
+#
+# GRUB 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 3 of the License, or
+# (at your option) any later version.
+#
+# GRUB 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 GRUB.  If not, see <http://www.gnu.org/licenses/>.
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+
+TEXTDOMAINDIR=@prefix@/share/locale
+TEXTDOMAIN=grub
+. gettext.sh

util/grub-mkconfig_lib.in

@@ -215,3 +215,14 @@ version_find_latest ()
   done
   echo "$a"
 }
+
+get_locale_lang ()
+{
+  lang="`echo ${LANG} | cut -d _ -f 1`"
+  if [ "x${lang}" = "x" ] ; then
+    return 1
+  else
+    echo "${lang}"
+    return 0
+  fi
+}

util/grub.d/00_header.in

@@ -22,6 +22,7 @@ prefix=@prefix@
 exec_prefix=@exec_prefix@
 libdir=@libdir@
 grub_prefix=`echo /boot/grub | sed ${transform}`
+locale_prefix="/usr/share/locale" # TODO: dynamic with exec_prefix ?
 
 . ${libdir}/grub/grub-mkconfig_lib
 
@@ -100,6 +101,21 @@ EOF
   ;;
 esac
 
+if test -e ${grub_prefix}/gettext.mod -a -d /usr/share/locale; then
+  # Make the locales accesible
+  prepare_grub_to_access_device `${grub_probe} --target=device ${locale_prefix}`
+  lang=`get_locale_lang`
+  grub_locale_prefix=`make_system_path_relative_to_its_root ${locale_prefix}`
+  cat << EOF
+# Gettext variables and module
+set locale_prefix=${grub_locale_prefix}
+set lang=${lang}
+insmod gettext 
+EOF
+else
+  echo "gettext module or /usr/share/locale is not available"
+fi
+
 if [ "x${GRUB_HIDDEN_TIMEOUT}" != "x" ] ; then
   if [ "x${GRUB_HIDDEN_TIMEOUT_QUIET}" = "xtrue" ] ; then 
     verbose=

util/grub.d/10_linux.in

@@ -95,11 +95,11 @@ while [ "x$list" != "x" ] ; do
     linux_root_device_thisversion=${GRUB_DEVICE}
   fi
 
-  linux_entry "${OS}, with Linux ${version}" \
-      "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}"
+  linux_entry $eval_gettext ("${OS}, with Linux ${version}" \
+      "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}")
   if [ "x${GRUB_DISABLE_LINUX_RECOVERY}" != "xtrue" ]; then
-    linux_entry "${OS}, with Linux ${version} (recovery mode)" \
-	"single ${GRUB_CMDLINE_LINUX}"
+    linux_entry $eval_gettext ("${OS}, with Linux ${version} (recovery mode)" \
+	"single ${GRUB_CMDLINE_LINUX}")
   fi
 
   list=`echo $list | tr ' ' '\n' | grep -vx $linux | tr '\n' ' '`