--- mozilla/calendar/sunbird/app/mozilla.in.orig	2008-02-28 14:08:25.000000000 +0100
+++ mozilla/calendar/sunbird/app/mozilla.in	2008-02-28 14:08:52.000000000 +0100
@@ -249,6 +249,22 @@ done
 
 export MRE_HOME
 
+# Try without a local variant first, then with a local variant
+# So that pt-BR doesn't try to use pt for example
+
+SHORTMOZLOCALE=`echo $LANG | sed "s|_\([^.]*\).*||g"`
+MOZLOCALE=`echo $LANG | sed "s|_\([^.]*\).*|-\1|g"`
+
+if [ -f $dist_bin/extensions/langpack-${MOZLOCALE}@sunbird.mozilla.org/chrome/$MOZLOCALE.jar ]
+then
+        set -- "$@" -UILocale $MOZLOCALE
+else
+        if [ -f $dist_bin/extensions/langpack-${SHORTMOZLOCALE}@sunbird.mozilla.org/chrome/$SHORTMOZLOCALE.jar ]
+        then
+                set -- "$@" -UILocale $SHORTMOZLOCALE
+        fi
+fi
+
 ## Start addon scripts
 moz_pis_startstop_scripts "start"