--- gcc-6.5.0.orig/gcc/config/i386/i386.c
+++ gcc-6.5.0/gcc/config/i386/i386.c
@@ -8747,7 +8747,7 @@
 			 HOST_WIDE_INT words)
 {
   int res = 0;
-  bool error_p = NULL;
+  bool error_p = 0;
 
   if (TARGET_IAMCU)
     {