--- liblzf/lzf_c_best.c	2015/06/29 23:34:42	1.5
+++ liblzf/lzf_c_best.c	2015/10/11 22:26:07	1.6
@@ -85,6 +85,8 @@
 
   lit++; *op++ = *ip++;
 
+  &state; /* avoid undefined behaviour by forcing non-register class, 6.3.2.1p2 */
+
   while (ip < in_end - 2)
     {
       int best_l = 0;