build breakage on latest master on Windows

[Stephan Bergmann]

On 03/14/2012 03:16 PM, Noel Grandin wrote:
> Compiling using Visual Studio 2008.
> I'm seeing this error - any ideas?
>
> /cygdrive/c/LibreOffice/libo/canvas/Library_gdipluscanvas.mk:77: ***
> fdo#47246: canvas/source/directx/dx_bitmap is linked in by
> Library/idirectx9canvas.lib Library/igdipluscanvas.lib. Stop.
> dmake: Error code 2, while making 'all'

Look up <https://bugs.freedesktop.org/show_bug.cgi?id=47246> "EasyHack: 
Remove the duplicate linked objects in gbuild" that is referenced in the 
error message.

Stephan