--- strptime.c~	2015-09-06 15:13:21.000000000 +0200
+++ strptime.c	2016-09-25 12:40:20.593384998 +0200
@@ -378,7 +378,7 @@
 			if (!isdigit_l((unsigned char)*buf, locale))
 				return (NULL);
 
-			i = *buf - '0';
+			i = *buf++ - '0';
 			if (i > 6)
 				return (NULL);