--- a/make/gendata/Gendata-java.base.gmk	Tue Jan 01 20:09:02 2019 -0500
+++ b/make/gendata/Gendata-java.base.gmk	Wed Jan 02 12:59:26 2019 +0100
@@ -55,7 +55,7 @@
 $(GENDATA_CURDATA): $(TOPDIR)/make/data/currency/CurrencyData.properties $(BUILD_TOOLS_JDK)
 	$(call MakeDir, $(@D))
 	$(RM) $@
-	$(TOOL_GENERATECURRENCYDATA) -o $@.tmp < $<
+	$(TOOL_GENERATECURRENCYDATA) -o $@.tmp -i $<
 	$(MV) $@.tmp $@
 	$(CHMOD) 444 $@