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/file.c b/file.c
index 70f32833ba..b33b5f652c 100644
--- a/file.c
+++ b/file.c
@@ -5225,7 +5225,7 @@ test_check(int n, int argc, VALUE *argv)
  */
 
 static VALUE
-rb_f_test(int argc, VALUE *argv)
+rb_f_test(int argc, VALUE *argv, VALUE _)
 {
     int cmd;