--- file_not_specified_in_diff	
+++ file_not_specified_in_diff	
@@ -, +, @@ 
--- src/gengine/OptionAgent.cpp
+++ src/gengine/OptionAgent.cpp
@@ -23,7 +23,8 @@ 
 #include "UnknownMsgException.h"
 #include "minmax.h"
 
-#include <string.h> //strlen
+#include <cstring> //strlen
+#include <cstdlib>
 #include <locale.h> //setlocale
 
 #ifndef LC_MESSAGES
--- src/gengine/StringTool.cpp
+++ src/gengine/StringTool.cpp
@@ -9,6 +9,7 @@ 
 #include "StringTool.h"
 
 #include <sstream>
+#include <cstdlib>
 
 //-----------------------------------------------------------------
 /**
--- src/level/Landslip.cpp
+++ src/level/Landslip.cpp
@@ -10,6 +10,7 @@ 
 
 #include "Rules.h"
 #include "minmax.h"
+#include <cstring>
 
 //-----------------------------------------------------------------
     Landslip::Landslip(const ModelList &models)