rec: Add missing cinttypes include for PRId64

diff --git a/pdns/recursor_cache.cc b/pdns/recursor_cache.cc
index 9168ff60940b7d8598d279d2465b7e8105a74555..e987b74c016f232796a4d20d7adb671cf4d6c777 100644 (file)
--- a/pdns/recursor_cache.cc
+++ b/pdns/recursor_cache.cc
@@ -1,6 +1,9 @@
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
+
+#include <cinttypes>
+
 #include "recursor_cache.hh"
 #include "misc.hh"
 #include <iostream>