fix mac build

Change-Id: Ic98ada6d0bca124194cea24a1ed30d30a1c0a85e

vcl/osx/salprn.cxx

@@ -448,7 +448,7 @@ bool AquaSalInfoPrinter::StartJob( const OUString* i_pFileName,
             // information (e.g. brochure printing scales to the found paper size)
             // also SetPaperSizeUser has the advantage that we can share a
             // platform independent paper matching algorithm
-            boost::shared_ptr<Printer> pPrinter( i_rController.getPrinter() );
+            std::shared_ptr<Printer> pPrinter( i_rController.getPrinter() );
             pPrinter->SetMapMode( MapMode( MAP_100TH_MM ) );
             pPrinter->SetPaperSizeUser( aCurSize, true );