build: added missing include

2016-06-21 10:35:38 +02:00
parent 9560cc4ea6
commit 36c504d8a0
1 changed files with 1 additions and 0 deletions
@@ -1,6 +1,7 @@
 #ifndef TRACING_H
 #define TRACING_H

+#include <mutex>
 #include <stack>
 #include <thread>