bug fix

wave_reader.cpp

@@ -35,7 +35,8 @@
 #include "error_reporter.h"
 #include <sstream>
 #include <string.h>
-#include <fcntl.h>
+#include <unistd.h>
+//#include <fcntl.h>
 
 using std::ostringstream;
 using std::exception;