WaE: 'xChartType$D57056$_pInterface' may be used uninitialized…

… in this function"
declaring those functions static breaks the build on MacPPC / gcc 4.0.1

Change-Id: I3a389530d51ae0ddd38418159ca4234016bf93ba
Reviewed-on: https://gerrit.libreoffice.org/911Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
Tested-by: Stephan Bergmann <sbergman@redhat.com>

oox/source/export/SchXMLSeriesHelper.cxx

@@ -100,7 +100,8 @@ using ::rtl::OUString;
     return aRet;
 }
 
-static uno::Reference< chart2::XChartType > lcl_getChartTypeOfSeries(
+namespace {
+uno::Reference< chart2::XChartType > lcl_getChartTypeOfSeries(
                                 const uno::Reference< chart2::XDiagram >&   xDiagram
                               , const Reference< chart2::XDataSeries >& xSeries )
 {
@@ -148,6 +149,7 @@ static uno::Reference< chart2::XChartType > lcl_getChartTypeOfSeries(
     }
     return 0;
 }
+}
 
 bool SchXMLSeriesHelper::isCandleStickSeries(
                   const Reference< chart2::XDataSeries >& xSeries

xmloff/source/chart/SchXMLSeriesHelper.cxx

@@ -114,7 +114,8 @@ using ::rtl::OUString;
     return aRet;
 }
 
-static uno::Reference< chart2::XChartType > lcl_getChartTypeOfSeries(
+namespace {
+uno::Reference< chart2::XChartType > lcl_getChartTypeOfSeries(
                                 const uno::Reference< chart2::XDiagram >&   xDiagram
                               , const Reference< chart2::XDataSeries >& xSeries )
 {
@@ -162,6 +163,7 @@ static uno::Reference< chart2::XChartType > lcl_getChartTypeOfSeries(
     }
     return 0;
 }
+}
 
 bool SchXMLSeriesHelper::isCandleStickSeries(
                   const Reference< chart2::XDataSeries >& xSeries