build: Fix MSVC build error

diff --git a/src/util/file.hpp b/src/util/file.hpp
index c1109f392fd5bcece45f7f025e9d2ea6f3005b13..ecd0ea77bb480c2a7a943fa715cc33dd13105430 100644 (file)
--- a/src/util/file.hpp
+++ b/src/util/file.hpp
@@ -20,6 +20,7 @@
 
 #include <third_party/nonstd/optional.hpp>
 
+#include <ctime>
 #include <string>
 
 namespace util {