--- engine/pathfinder/astar.cpp
+++ engine/pathfinder/astar.cpp
@@ -35,6 +35,7 @@
 
 #include "stratagus.h"
 #include "pathfinder.h"
+#include <cstdlib>
 
 /*----------------------------------------------------------------------------
 --  Declarations
--- engine/stratagus/stratagus.cpp
+++ engine/stratagus/stratagus.cpp
@@ -160,6 +160,7 @@
 #include <time.h>
 #include <ctype.h>
 #include <sstream>
+#include <algorithm>
 
 #ifndef _MSC_VER
 #include <unistd.h>