Fix some compilation warnings

[kdenlive] / src / blackmagic / include / LinuxCOM.h

diff --git a/src/blackmagic/include/LinuxCOM.h b/src/blackmagic/include/LinuxCOM.h
index 2b13697d2b08547c5ec718669a2bf779e6f539b6..0fa594cbb1f7a1f1e1b5b14aeb201bdb6848c3a4 100644 (file)
--- a/src/blackmagic/include/LinuxCOM.h
+++ b/src/blackmagic/include/LinuxCOM.h
@@ -89,6 +89,7 @@ typedef void *LPVOID;
 class IUnknown
 {
     public:
+        virtual ~IUnknown() {};
        virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, LPVOID *ppv) = 0;
        virtual ULONG STDMETHODCALLTYPE AddRef(void) = 0;
        virtual ULONG STDMETHODCALLTYPE Release(void) = 0;