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-rw-r--r--internal/gc.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/internal/gc.h b/internal/gc.h
index 749b73005c..ad0ceac7de 100644
--- a/internal/gc.h
+++ b/internal/gc.h
@@ -129,8 +129,6 @@ int ruby_get_stack_grow_direction(volatile VALUE *addr);
const char *rb_obj_info(VALUE obj);
const char *rb_raw_obj_info(char *const buff, const size_t buff_size, VALUE obj);
-
-struct rb_thread_struct;
size_t rb_size_pool_slot_size(unsigned char pool_id);
struct rb_execution_context_struct; /* in vm_core.h */