Fix non-unity builds on CentOS 7 with std::shared_ptr

refs #6509

diff --git a/lib/base/namespace.hpp b/lib/base/namespace.hpp
index 21ebe929bcba33541b5a98d5759430588dc65beb..eb4928620428fae46d3689b39825e6c0357d5863 100644 (file)
--- a/lib/base/namespace.hpp
+++ b/lib/base/namespace.hpp
@@ -26,6 +26,7 @@
 #include "base/debuginfo.hpp"
 #include <map>
 #include <vector>
+#include <memory>
 
 namespace icinga
 {