use wxIsSameDouble() and wxIsNullDouble() for warning-less double comparison of doubles

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@35705 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/statbox.cpp

@@ -73,7 +73,7 @@ bool wxStaticBox::Create( wxWindow *parent,
     else // wxALIGN_LEFT
         xalign = 0.0;
 
-    if ( xalign )
+    if ( style & (wxALIGN_RIGHT | wxALIGN_CENTER) ) // left alignment is default
         gtk_frame_set_label_align(GTK_FRAME( m_widget ), xalign, 0.5);
 
     return TRUE;