try to generate po files when someone add a new language

po/Makefile

 include ../defines.mk
 
-# msginit -i messages.pot -l de
-
 LINGUAS=de fr ja
 
 all: $(patsubst %, pve-lang-%.js, $(LINGUAS))
@@ -11,6 +9,11 @@ update-po:
 	./jsgettext.pl ../www/manager
 	for i in $(LINGUAS); do echo -n "$$i: ";msgmerge -s -v $$i.po messages.pot >$$i.po.tmp; mv $$i.po.tmp $$i.po; done
 
+# try to generate po files when someone add a new language
+.SECONDARY: # do not delete generated intermediate file
+%.po:
+	msginit -i messages.pot -l $*
+
 pve-lang-%.js: %.po
 	./po2js.pl $< >$@.tmp
 	mv $@.tmp $@