5 files changed, 9 insertions, 1 deletions

diff --git a/configure.ac b/configure.ac
index 283757f..48a5efb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,3 +1,3 @@
-AC_INIT([libopkele], [0.3.2], [libopkele-bugs@klever.net])
+AC_INIT([libopkele], [0.4], [libopkele-bugs@klever.net])
 AC_CONFIG_SRCDIR([include/opkele/opkele-config.h])
 AC_CONFIG_HEADERS([config.h include/opkele/acconfig.h])
diff --git a/include/opkele/consumer.h b/include/opkele/consumer.h
index b9d1e54..50ff692 100644
--- a/include/opkele/consumer.h
+++ b/include/opkele/consumer.h
@@ -23,4 +23,6 @@ namespace opkele {
         public:
 
+            virtual ~consumer_t() { }
+
             /**
              * store association. The function should be overridden in the real
diff --git a/include/opkele/extension.h b/include/opkele/extension.h
index ea0c74c..513672f 100644
--- a/include/opkele/extension.h
+++ b/include/opkele/extension.h
@@ -16,4 +16,6 @@ namespace opkele {
     class extension_t {
         public:
+
+            virtual ~extension_t() { }
             /**
              * hook called by consumer before submitting data to OpenID server.
diff --git a/include/opkele/server.h b/include/opkele/server.h
index e7e5bb3..dd7fc41 100644
--- a/include/opkele/server.h
+++ b/include/opkele/server.h
@@ -18,4 +18,6 @@ namespace opkele {
         public:
 
+            virtual ~server_t() { }
+
             /**
              * allocate the new association. The function should be overridden
diff --git a/include/opkele/types.h b/include/opkele/types.h
index 8f4bf73..f732a1e 100644
--- a/include/opkele/types.h
+++ b/include/opkele/types.h
@@ -66,4 +66,6 @@ namespace opkele {
         public:
 
+            virtual ~association_t() { }
+
             /**
              * retrieve the server with which association was established.