Eliminated some compiler warnings

find/find.c

@@ -1854,7 +1854,6 @@ process_dir (char *pathname, char *name, int pathlen, struct stat *statp, char *
 	{
 	  enum SafeChdirStatus status;
 	  struct dir_id did;
-	  boolean changed = false;
 	  
 	  /* We could go back and do the next command-line arg
 	     instead, maybe using longjmp.  */

find/pred.c

@@ -449,6 +449,8 @@ new_impl_pred_exec (const char *pathname, struct stat *stat_buf,
 {
   struct exec_val *execp = &pred_ptr->args.exec_vec;
   size_t len = strlen(pathname);
+
+  (void) stat_buf;
   
   if (execp->multiple)
     {
@@ -1272,6 +1274,8 @@ pred_samefile (char *pathname, struct stat *stat_buf, struct predicate *pred_ptr
    * predicate cannot return true.  Hence there would be no need to
    * stat the file we're lookingn at.
    */
+  (void) pathname;
+  
   return stat_buf->st_ino == pred_ptr->args.fileid.ino
     &&   stat_buf->st_dev == pred_ptr->args.fileid.dev;
 }

locate/locate.c

@@ -438,7 +438,8 @@ static int
 visit_regex(const char *munged_filename, const char *original_filename, void *context)
 {
   struct regular_expression *p = context;
-
+  (void) original_filename;
+  
   if (0 == regexec(&p->re, munged_filename, 0u, NULL, 0))
     return VISIT_CONTINUE;	/* match */
   else
@@ -453,7 +454,8 @@ visit_stats(const char *munged_filename, const char *original_filename, void *co
   size_t len = strlen(original_filename);
   const char *s;
   int highbit, whitespace, newline;
-
+  (void) munged_filename;
+  
   ++(p->total_filename_count);
   p->total_filename_length += len;