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-rw-r--r--include/ruby/intern.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/ruby/intern.h b/include/ruby/intern.h
index 4794f563fa..df22f34796 100644
--- a/include/ruby/intern.h
+++ b/include/ruby/intern.h
@@ -200,6 +200,10 @@ VALUE rb_enum_values_pack(int, VALUE*);
VALUE rb_enumeratorize(VALUE, VALUE, int, VALUE *);
typedef VALUE rb_enumerator_size_func(VALUE, VALUE, VALUE);
VALUE rb_enumeratorize_with_size(VALUE, VALUE, int, VALUE *, rb_enumerator_size_func *);
+#ifndef RUBY_EXPORT
+#define rb_enumeratorize_with_size(obj, id, argc, argv, size_fn) \
+ rb_enumeratorize_with_size(obj, id, argc, argv, (rb_enumerator_size_func *)(size_fn))
+#endif
#define RETURN_SIZED_ENUMERATOR(obj, argc, argv, size_fn) do { \
if (!rb_block_given_p()) \
return rb_enumeratorize_with_size((obj), ID2SYM(rb_frame_this_func()),\