Fix a delete call on abstract class without virtual dt clang warning.

diff --git a/pdns/dnswasher.cc b/pdns/dnswasher.cc
index 3ae3ea7ee3886043f7fdf6c37509ea630cd09bb7..c3da28c2d595845a749e49d34922b9b72779ce00 100644 (file)
--- a/pdns/dnswasher.cc
+++ b/pdns/dnswasher.cc
@@ -54,6 +54,9 @@ po::variables_map g_vm;
 class IPObfuscator
 {
 public:
+  virtual ~IPObfuscator()
+  {
+  }
   virtual uint32_t obf4(uint32_t orig)=0;
   virtual struct in6_addr obf6(const struct in6_addr& orig)=0;
 };