diff --git a/src/core/haval.cpp b/src/core/haval.cpp
index 6063e00..a17fbb1 100644
--- a/src/core/haval.cpp
+++ b/src/core/haval.cpp
@@ -275,6 +275,7 @@ static uint8 padding[128] = {        /* constants for padding */
   }                                                \
 }
 
+#if 0 //unused in OST
 
 /* hash a string */
 void haval_string (char *string, uint8 fingerprint[FPTLEN >> 3])
@@ -330,6 +331,7 @@ void haval_stdin ()
     putchar(fingerprint[i]);
   }
 }
+#endif
 
 /* initialization */
 void haval_start (haval_state *state)
diff --git a/src/core/haval.h b/src/core/haval.h
index d9044e6..975614d 100644
--- a/src/core/haval.h
+++ b/src/core/haval.h
@@ -117,10 +117,12 @@ typedef struct {
 
 #define P_(s) s
 //Old prototyping stuff... I will ignore it for now.
-
+#if 0 //unused in OST
 void haval_string P_((char *, uint8 *)); /* hash a string */
 int  haval_file P_((char *, uint8 *));   /* hash a file */
 void haval_stdin P_((void));                     /* filter -- hash input from stdin */
+#endif
+
 void haval_start P_((haval_state *));            /* initialization */
 void haval_hash P_((haval_state* state, uint8* str, int str_len));
 void haval_end P_((haval_state *, uint8 *)); /* finalization */