vm.c: fixed wrong compilation condition for `MRB_INT32`.
@@ -2384,7 +2384,7 @@ RETRY_TRY_BLOCK:
NEXT;
}
-#if !defined(MRB_USE_BIGINT) || (defined(MRB_INT32) && defined(MRB_32BIT))
+#if !defined(MRB_USE_BIGINT) || defined(MRB_INT32)
L_INT_OVERFLOW:
{
mrb_value exc = mrb_exc_new_lit(mrb, E_RANGE_ERROR, "integer overflow");
