* Merging revisions r45875 from trunk:

    ------------------------------------------------------------------------
    r45875 | michael | 2020-07-29 14:26:57 +0200 (Wed, 29 Jul 2020) | 1 line
    
    * Mark THandleObject as abstract
    ------------------------------------------------------------------------

git-svn-id: branches/fixes_3_2@46599 -

packages/fcl-base/src/syncobjs.pp

@@ -52,7 +52,7 @@ type
       destructor Destroy;override;
    end;
 
-   THandleObject = class(TSynchroObject)
+   THandleObject = class abstract  (TSynchroObject)
    protected
       FHandle : TEventHandle;
       FLastError : Integer;