Include <chrono> for system_clock (#258)

Cheney-W · web-flow · commit e1e68cd26184 · 2024-11-30T10:21:08.000+08:00
diff --git a/src/Util/util.cpp b/src/Util/util.cpp
@@ -9,6 +9,7 @@
  */
 
 #include <cassert>
+#include <chrono>
 #include <cstdio>
 #include <cstdlib>
 #include <cstring>
