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, 3 insertions, 3 deletions

diff --git a/vm_eval.c b/vm_eval.c
index 8c7e01edce..a31f4865ed 100644
--- a/vm_eval.c
+++ b/vm_eval.c
@@ -1880,7 +1880,7 @@ uncaught_throw_to_s(VALUE exc)
  */
 
 static VALUE
-rb_f_throw(int argc, VALUE *argv)
+rb_f_throw(int argc, VALUE *argv, VALUE _)
 {
     VALUE tag, value;
 
@@ -2085,7 +2085,7 @@ local_var_list_add(const struct local_var_list *vars, ID lid)
  */
 
 static VALUE
-rb_f_local_variables(void)
+rb_f_local_variables(VALUE _)
 {
     struct local_var_list vars;
     rb_execution_context_t *ec = GET_EC();
@@ -2142,7 +2142,7 @@ rb_f_local_variables(void)
 
 
 static VALUE
-rb_f_block_given_p(void)
+rb_f_block_given_p(VALUE _)
 {
     rb_execution_context_t *ec = GET_EC();
     rb_control_frame_t *cfp = ec->cfp;