Index: sndpeek-1.4/src/marsyas/LPC.cpp
===================================================================
--- sndpeek-1.4.orig/src/marsyas/LPC.cpp
+++ sndpeek-1.4/src/marsyas/LPC.cpp
@@ -26,6 +26,7 @@ in Speech Recognition research.
 */
 
 
+#include <cstdlib>
 #include "LPC.h"
 
 LPC::LPC( unsigned int inSize )