kconfig: make update-po-config work in KBUILD_OUTPUT

Signed-off-by: Peter Foley <pefoley2@verizon.net>
Signed-off-by: Michal Marek <mmarek@suse.cz>

scripts/kconfig/Makefile

@@ -77,14 +77,15 @@ localyesconfig: $(obj)/streamline_config.pl $(obj)/conf
 # The symlink is used to repair a deficiency in arch/um
 update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h
 	$(Q)echo "  GEN config"
-	$(Q)xgettext --default-domain=linux              \
-	    --add-comments --keyword=_ --keyword=N_      \
-	    --from-code=UTF-8                            \
-	    --files-from=scripts/kconfig/POTFILES.in     \
+	$(Q)xgettext --default-domain=linux                         \
+	    --add-comments --keyword=_ --keyword=N_                 \
+	    --from-code=UTF-8                                       \
+	    --files-from=$(srctree)/scripts/kconfig/POTFILES.in     \
+	    --directory=$(srctree) --directory=$(objtree)           \
 	    --output $(obj)/config.pot
 	$(Q)sed -i s/CHARSET/UTF-8/ $(obj)/config.pot
 	$(Q)ln -fs Kconfig.i386 arch/um/Kconfig.arch
-	$(Q)(for i in `ls arch/*/Kconfig`;               \
+	$(Q)(for i in `ls $(srctree)/arch/*/Kconfig`;    \
 	    do                                           \
 		echo "  GEN $$i";                        \
 		$(obj)/kxgettext $$i                     \
@@ -92,7 +93,7 @@ update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h
 	    done )
 	$(Q)msguniq --sort-by-file --to-code=UTF-8 $(obj)/config.pot \
 	    --output $(obj)/linux.pot
-	$(Q)rm -f arch/um/Kconfig.arch
+	$(Q)rm -f $(srctree)/arch/um/Kconfig.arch
 	$(Q)rm -f $(obj)/config.pot
 
 PHONY += allnoconfig allyesconfig allmodconfig alldefconfig randconfig
@@ -331,7 +332,8 @@ $(obj)/lkc_defs.h: $(src)/lkc_proto.h
 
 # Extract gconf menu items for I18N support
 $(obj)/gconf.glade.h: $(obj)/gconf.glade
-	intltool-extract --type=gettext/glade $(obj)/gconf.glade
+	intltool-extract --type=gettext/glade --srcdir=$(srctree) \
+	$(obj)/gconf.glade
 
 ###
 # The following requires flex/bison/gperf