BIND 10 master, updated. c9ba8373e271fb3c966fb59813c21ca8c575354d Add a virtual destructor

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- Log -----------------------------------------------------------------
commit c9ba8373e271fb3c966fb59813c21ca8c575354d
Author: Michal 'vorner' Vaner <michal.vaner at nic.cz>
Date:   Sat Oct 20 15:11:43 2012 +0200

    Add a virtual destructor
    
    To fix compilation.

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Summary of changes:
 src/lib/datasrc/memory/zone_writer.h |    3 +++
 1 file changed, 3 insertions(+)

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diff --git a/src/lib/datasrc/memory/zone_writer.h b/src/lib/datasrc/memory/zone_writer.h
index fe8dc2a..0e8f285 100644
--- a/src/lib/datasrc/memory/zone_writer.h
+++ b/src/lib/datasrc/memory/zone_writer.h
@@ -37,6 +37,9 @@ namespace memory {
 /// (how to achieve that may be implementation dependant).
 class ZoneWriter {
 public:
+    /// \brief Virtual destructor.
+    virtual ~ZoneWriter() {};
+
     /// \brief Get the zone data into memory.
     ///
     /// This is the part that does the time-consuming loading into the memory.