Fix missing `MRB_API` prefix for functions below; clse #4267

Functions to add prototypes to headers:
* mrb_ary_splice()
* mrb_notimplement()
* mrb_vformat()
* mrb_cstr_to_dbl()
* mrb_cstr_to_inum()

Functions to be made `static` (`MRB_API` was not needed):
* mrb_mod_module_function()
* mrb_obj_hash()
* mrb_str_len_to_inum()

Functions to remove `MRB_API` from definitions (referenced from within `libmruby`):
* mrb_mod_cv_defined()
* mrb_mod_cv_get()
* mrb_f_send()

1 files changed, 1 insertions, 1 deletions

diff --git a/src/kernel.c b/src/kernel.c
index 8845cbce6..7890e3dac 100644
--- a/src/kernel.c
+++ b/src/kernel.c
@@ -492,7 +492,7 @@ mrb_obj_frozen(mrb_state *mrb, mrb_value self)
  *  <code>Hash</code>. Any hash value that exceeds the capacity of a
  *  <code>Fixnum</code> will be truncated before being used.
  */
-MRB_API mrb_value
+static mrb_value
 mrb_obj_hash(mrb_state *mrb, mrb_value self)
 {
   return mrb_fixnum_value(mrb_obj_id(self));