fix simple compile error in test/IXTest.h

2019-01-07 18:08:11 -08:00
parent 3e150db493
commit 1a8b870a9e
1 changed files with 1 additions and 0 deletions
--- a/test/IXTest.h
+++ b/test/IXTest.h
@@ -10,6 +10,7 @@
 #include <vector>
 #include <sstream>
 #include <iostream>
+#include <mutex>

 namespace ix
 {