// SCM result = scm_call_1 (
// scm_variable_ref (call_with_error_handling),
// scm_call_1 (ly_lily_module_constant ("lilypond-main"), files));
// SCM result = scm_call_1 (
// scm_variable_ref (call_with_error_handling),
// scm_call_1 (ly_lily_module_constant ("lilypond-main"), files));