fix illegal instruction failure in Qt on Darwin

DeckerSU · DeckerSU · commit 3254f8ff6090 · 2020-10-09T16:53:13.000+03:00
xaya/xaya#52
diff --git a/src/chainparams.h b/src/chainparams.h
@@ -117,6 +117,7 @@ class CChainParams
        which determines further actions.  */
     /* FIXME: Move to consensus params!  */
     bool IsHistoricBug(const uint256& txid, unsigned nHeight, BugType& type) const;
+    virtual ~CChainParams() {}
 
 protected:
     CChainParams() {}
