fix up compilation of testrunner and tsig tests

diff --git a/pdns/rec_channel.hh b/pdns/rec_channel.hh
index c5b62fb10b510557258b0f44610229b9737398d4..c40a4cec3f182677224ea7c3a5314989644f0f0a 100644 (file)
--- a/pdns/rec_channel.hh
+++ b/pdns/rec_channel.hh
@@ -8,6 +8,7 @@
 #include <pthread.h>
 #include "iputils.hh"
 #include "dnsname.hh"
+#include <atomic>
 
 /** this class is used both to send and answer channel commands to the PowerDNS Recursor */
 class RecursorControlChannel