diff -r 80b225e9a6b6 -r 7373e3048167 targets/toolchain_makefile.py
--- a/targets/toolchain_makefile.py	Fri Oct 12 11:50:40 2018 +0300
+++ b/targets/toolchain_makefile.py	Fri Oct 12 12:06:45 2018 +0300
@@ -28,7 +28,7 @@
 import re
 import operator
 import hashlib
-
+from functools import reduce
 from util.ProcessLogger import ProcessLogger