SCM spaceable = get_property ("verticallySpacedContexts");
Context *orig = gi.origin_contexts (this)[0];
- if (scm_memq (ly_symbol2scm (orig->context_name ().to_str0 ()),
+ if (scm_memq (ly_symbol2scm (orig->context_name ().c_str ()),
spaceable) != SCM_BOOL_F)
{
Pointer_group_interface::add_grob (system_,