Merge branch 'master' into stable

include/mruby/khash.h

@@ -21,7 +21,7 @@ typedef uint32_t khint_t;
 typedef khint_t khiter_t;
 
 #ifndef KHASH_INITIAL_SIZE
-# define KHASH_INITIAL_SIZE 8
+# define KHASH_INITIAL_SIZE 32
 #endif
 #define KHASH_MIN_SIZE 8
 #define KHASH_SMALL_LIMIT 4

include/mruby/value.h

@@ -316,7 +316,11 @@ struct RCptr {
 #endif
 #define mrb_test(o)   mrb_bool(o)
 #ifndef mrb_bigint_p
+#ifdef MRB_USE_BIGINT
 #define mrb_bigint_p(o) (mrb_type(o) == MRB_TT_BIGINT)
+#else
+#define mrb_bigint_p(o) FALSE
+#endif
 #endif
 
 /**