py/mkrules.mk: Allow to add more items for "clean" target using CLEAN_EXTRA.

pfalcon · pfalcon · commit 7fb31479bfff · 2016-08-04T23:46:08.000+03:00
diff --git a/py/mkrules.mk b/py/mkrules.mk
@@ -127,7 +127,7 @@ lib: $(OBJ)
 	$(AR) rcs libmicropython.a $^
 
 clean:
-	$(RM) -rf $(BUILD)
+	$(RM) -rf $(BUILD) $(CLEAN_EXTRA)
 .PHONY: clean
 
 print-cfg:
