--- old/makefiles/GenerateData.gmk	2012-07-03 19:59:06.583463516 +0200
+++ new/makefiles/GenerateData.gmk	2012-07-03 19:59:06.323459686 +0200
@@ -69,6 +69,7 @@
 	$(RM) $@
 	$(TOOL_GENERATECURRENCYDATA) -o $@.temp < $<
 	$(MV) $@.temp $@
+	$(CHMOD) 444 $@
 
 GENDATA += $(GENDATA_CURDATA)