clang: error: default initialization of an object of const type 'const BlackMisc::Aviation::CAirlineIcaoCodeList' without a user-provided default constructor

src/blackmisc/db/dbinfolist.h

@@ -35,7 +35,7 @@ namespace BlackMisc
             BLACKMISC_DECLARE_USING_MIXIN_METATYPE(CDbInfoList)
 
             //! Default constructor.
-            CDbInfoList() = default;
+            CDbInfoList();
 
             //! Construct from a base class object.
             CDbInfoList(const CSequence<CDbInfo> &other);