Index: source/liblinux.cc
--- source/liblinux.cc.orig
+++ source/liblinux.cc
@@ -487,7 +487,7 @@ int itoa(int value, char *strptr, int radix)
         if (!startflag)         /* Special case if value == 0 */
             sprintf((strptr + ctr++), "0");
 
-        strptr[ctr] = (char) NULL;
+        strptr[ctr] = (char) 0;
     }
     return (OK);                /* Me? Fail? Nah. */
 }
