Index: mplex/multiplexor.cpp
--- mplex/multiplexor.cpp.orig
+++ mplex/multiplexor.cpp
@@ -22,6 +22,7 @@
 #include "config.h"
 #include <math.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include "mjpeg_types.h"
 #include "mjpeg_logging.h"
