Compiling error on DSiWin32 on D2009 (NonClientMetrics.SizeOf)

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What steps will reproduce the problem?
1. Compile DSiWin32 with D2009

What is the expected output? What do you see instead?
C:\Dev\Delphi\Lib\OmniThreadLibrary\src\DSiWin32.pas(6396,53): error E2003: 
E2003 Undeclared identifier: 'SizeOf'

What version of the product are you using? On what operating system?
DSiWin32 1.72

Please provide any additional information below.

Construction "NonClientMetrics.SizeOf" supported since D2010, need change 
{$IFDEF Unicode}TNonClientMetrics.SizeOf{$ELSE}SizeOf(TNonClientMetrics){$ENDIF}
to
{$IF CompilerVersion < 
21.0}SizeOf(TNonClientMetrics){$ELSE}TNonClientMetrics.SizeOf{$IFEND}

Original issue reported on code.google.com by [email protected] on 10 Sep 2013 at 1:16