Include stddef.h to get access to size_t

diff --git a/common/os/Thread.h b/common/os/Thread.h
index bca41bbc1218dbd4d056b60510f8e90e78874bd2..4c39884b4fe0aa00e20523c177092d24724679f4 100644 (file)
--- a/common/os/Thread.h
+++ b/common/os/Thread.h
@@ -19,6 +19,8 @@
 #ifndef __OS_THREAD_H__
 #define __OS_THREAD_H__
 
+#include <stddef.h>
+
 namespace os {
   class Mutex;