Add field `allocf_ud` to replace current `ud`.

Since some use it as `mrb_state` associated user data.

1 files changed, 1 insertions, 0 deletions

diff --git a/include/mruby.h b/include/mruby.h
index 5c99052c1..c4466de4c 100644
--- a/include/mruby.h
+++ b/include/mruby.h
@@ -112,6 +112,7 @@ typedef struct mrb_state {
   struct mrb_jmpbuf *jmp;
 
   mrb_allocf allocf;                      /* memory allocation function */
+  void *allocf_ud;                        /* auxiliary data of allocf */
 
   struct mrb_context *c;
   struct mrb_context *root_c;