drop-in type check for rb_define_global_function

We can check the function pointer passed to rb_define_global_function
like we do so in rb_define_method.  It turns out that almost anybody
is misunderstanding the API.

1 files changed, 1 insertions, 1 deletions

diff --git a/eval_jump.c b/eval_jump.c
index b010f44638..75d4ad0207 100644
--- a/eval_jump.c
+++ b/eval_jump.c
@@ -35,7 +35,7 @@ rb_call_end_proc(VALUE data)
  */
 
 static VALUE
-rb_f_at_exit(void)
+rb_f_at_exit(VALUE _)
 {
     VALUE proc;