2 files changed, 4 insertions, 13 deletions
diff --git a/include/mruby.h b/include/mruby.h
index 197961c86..845443a1b 100644
--- a/include/mruby.h
+++ b/include/mruby.h
@@ -121,9 +121,9 @@ typedef struct mrb_state {
   size_t gc_threshold;
   int gc_interval_ratio;
   int gc_step_ratio;
-  int gc_disabled;
-  int gc_full;
-  int is_generational_gc_mode;
+  unsigned int gc_disabled:1;
+  unsigned int gc_full:1;
+  unsigned int is_generational_gc_mode:1;
   size_t majorgc_old_threshold;
   struct alloca_header *mems;
 
@@ -241,16 +241,6 @@ void mrb_write_barrier(mrb_state *, struct RBasic*);
 
 #define MRUBY_VERSION "Rite"
 
-#ifdef DEBUG
-#undef DEBUG
-#endif
-
-#if 0
-#define DEBUG(x) x
-#else
-#define DEBUG(x)
-#endif
-
 mrb_value mrb_check_convert_type(mrb_state *mrb, mrb_value val, mrb_int type, const char *tname, const char *method);
 mrb_value mrb_any_to_s(mrb_state *mrb, mrb_value obj);
 const char * mrb_obj_classname(mrb_state *mrb, mrb_value obj);
diff --git a/include/mruby/array.h b/include/mruby/array.h
index 2857ec75d..c5959bbe6 100644
--- a/include/mruby/array.h
+++ b/include/mruby/array.h
@@ -55,6 +55,7 @@ mrb_value mrb_ary_new4(mrb_state *mrb, int n, const mrb_value *elts);
 mrb_value mrb_assoc_new(mrb_state *mrb, mrb_value car, mrb_value cdr);
 mrb_value mrb_ary_entry(mrb_value ary, int offset);
 mrb_value mrb_ary_shift(mrb_state *mrb, mrb_value self);
+mrb_value mrb_ary_clear(mrb_state *mrb, mrb_value self);
 
 #if defined(__cplusplus)
 }  /* extern "C" { */