Fix test-dnsname_cc on clang/OS X

diff --git a/pdns/test-dnsname_cc.cc b/pdns/test-dnsname_cc.cc
index aa506b436490301438c0defd1dccd84395a037cc..295898a102bd8506b3602f9f5ba46a0e0b2f40d0 100644 (file)
--- a/pdns/test-dnsname_cc.cc
+++ b/pdns/test-dnsname_cc.cc
@@ -3,6 +3,7 @@
 #include <boost/test/unit_test.hpp>
 #include <boost/assign/std/map.hpp>
 #include <numeric>
+#include <math.h>
 #include "dnsname.hh"
 #include "misc.hh"
 #include "dnswriter.hh"