Added virtual memory on Linux

code/core/platform.h

@@ -71,6 +71,8 @@
 	#pragma warning(disable : 4201)
 #elif OS_LINUX
 	#include <dlfcn.h>
+	#include <sys/mman.h>
+	#include <unistd.h>
 #endif
 
 #endif  // LD_CORE_PLATFORM_H_