1 files changed, 0 insertions, 1 deletions
diff --git a/vm_core.h b/vm_core.h
index e302e62a4b..f0bb86aedf 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -656,7 +656,6 @@ void rb_vm_gvl_destroy(rb_vm_t *vm);
 void rb_thread_start_timer_thread(void);
 void rb_thread_stop_timer_thread(void);
 void rb_thread_reset_timer_thread(void);
-void *rb_thread_call_with_gvl(void *(*func)(void *), void *data1);
 int ruby_thread_has_gvl_p(void);
 VALUE rb_make_backtrace(void);
 typedef int rb_backtrace_iter_func(void *, VALUE, int, VALUE);