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diff --git a/src/macosx/PseudoThread.pas b/src/macosx/PseudoThread.pas
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+{* UltraStar Deluxe - Karaoke Game
+ *
+ * UltraStar Deluxe is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *}
+
+unit PseudoThread;
+
+{$IFDEF FPC}
+  {$MODE Delphi}
+{$ENDIF}
+
+{$I switches.inc}
+
+interface
+
+type
+
+// Debugging threads with XCode doesn't seem to work.
+// We use PseudoThread in Debug mode to get proper debugging.
+
+TPseudoThread = class(TObject)
+  private
+  protected
+    Terminated,
+    FreeOnTerminate: boolean;
+    procedure Execute; virtual; abstract;
+    procedure Resume;
+    procedure Suspend;
+  public
+   constructor Create(const suspended : boolean);
+end;
+
+implementation
+
+{ TPseudoThread }
+
+constructor TPseudoThread.Create(const suspended: boolean);
+begin
+  if not suspended then
+  begin
+    Execute;
+  end;
+end;
+
+procedure TPseudoThread.Resume;
+begin
+  Execute;
+end;
+
+procedure TPseudoThread.Suspend;
+begin
+end;
+
+end.
+