--- src/emucore/CartAR.cxx
+++ src/emucore/CartAR.cxx
@@ -17,6 +17,7 @@
 //============================================================================
 
 #include <cassert>
+#include <cstring>
 
 #include "M6502Hi.hxx"
 #include "Random.hxx"
--- src/emucore/Cart.cxx
+++ src/emucore/Cart.cxx
@@ -18,6 +18,7 @@
 
 #include <cassert>
 #include <sstream>
+#include <cstring>
 
 #include "bspf.hxx"
 #include "Cart.hxx"