add missing #include <pthread.h> to rec-channel.hh

diff --git a/pdns/rec_channel.hh b/pdns/rec_channel.hh
index bb0a71d0fe793251250823ea660fe8aa410c5b35..3f37803c8cbaebdae0e38915fb1f6ee49d4323ea 100644 (file)
--- a/pdns/rec_channel.hh
+++ b/pdns/rec_channel.hh
@@ -4,6 +4,7 @@
 #include <map>
 #include <inttypes.h>
 #include <sys/un.h>
+#include <pthread.h>
 
 
 /** this class is used both to send and answer channel commands to the PowerDNS Recursor */