src/share/vm/runtime/os.hpp

@@ -26,10 +26,11 @@
 #define SHARE_VM_RUNTIME_OS_HPP
 
 #include "jvmtifiles/jvmti.h"
 #include "runtime/extendedPC.hpp"
 #include "runtime/handles.hpp"
+#include "utilities/semaphore.hpp"
 #include "utilities/top.hpp"
 #ifdef TARGET_OS_FAMILY_linux
 # include "jvm_linux.h"
 # include <setjmp.h>
 #endif