--- grive2-0.5.1/libgrive/src/base/Syncer.hh.include 2019-11-13 07:05:31.000000000 +0900
+++ grive2-0.5.1/libgrive/src/base/Syncer.hh 2022-09-07 23:44:45.555093074 +0900
@@ -24,6 +24,7 @@
#include <string>
#include <vector>
#include <iosfwd>
+#include <memory>
namespace gr {