--- a/regexParser/grepWalk.cc	Sat May 07 19:18:43 2016 +0900
+++ b/regexParser/grepWalk.cc	Sat May 07 19:41:48 2016 +0900
@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include "grepWalk.h"
 #include "subsetConstruction.h"
@@ -50,13 +51,13 @@
                 // range matched.
                 if (cc->cond.w.word) {
                     WordPtr w;
-                    for (w = &cc->cond.w.word;w;w = w->next) {
+                    for (w = &cc->cond.w;w;w = w->next) {
                         // match the word.
                         // if (not match) continue;
-                        if (strncmp(w.word,tsv.buff.buffptr-1,w.length)) break;
+                        if (strncmp((const char *)w->word,(const char *)tsv.buff.buffptr-1,w->length)) break;
                     }
                     if (!w) continue;
-                    tsv.buff.buffptr += w.length - 1;
+                    tsv.buff.buffptr += w->length - 1;
                 }
                 state = nextState(cc->nextState,tg);
                 goto next;