1 files changed, 1 insertions, 0 deletions
diff --git a/iseq.h b/iseq.h
index 9d544fdbe7..13d2f2630c 100644
--- a/iseq.h
+++ b/iseq.h
@@ -173,6 +173,7 @@ enum defined_type {
 };
 
 VALUE rb_iseq_defined_string(enum defined_type type);
+void rb_iseq_make_compile_option(struct rb_compile_option_struct *option, VALUE opt);
 
 RUBY_SYMBOL_EXPORT_END