SCM name = ly_symbol2scm (get_outlet ()->context_name ().c_str ());
Context *c = (j && create_separate_contexts_)
- ? get_outlet ()->find_create_context (name, to_string (j), SCM_EOL)
+ ? get_outlet ()->find_create_context (name, ::to_string (j), SCM_EOL)
: get_outlet ();
if (!c)