diff --git a/BUILD.gn b/BUILD.gn
index c798dd5f71fef99fad0bfde3e143a1e0ccbbf7fd..489904622a34916647adddfd36b4e8537a48a151 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -43,6 +43,7 @@ config("qjs_debug_config") {
 
 qjs_sources = [
   "cutils.c",
+  "libbf.c",
   "libregexp.c",
   "libunicode.c",
   "quickjs-libc.c",
@@ -76,6 +77,7 @@ ohos_static_library("qjs") {
 ohos_executable("qjsc") {
   sources = [
     "cutils.c",
+    "libbf.c",
     "libregexp.c",
     "libunicode.c",
     "qjsc.c",
diff --git a/config.h b/config.h
new file mode 100644
index 0000000000000000000000000000000000000000..86c10adf02807b87ee44ec1625f2cb75fe22985b
--- /dev/null
+++ b/config.h
@@ -0,0 +1,30 @@
+/*
+ * QuickJS Javascript Engine
+ *
+ * Copyright (c) 2017-2020 Fabrice Bellard
+ * Copyright (c) 2017-2020 Charlie Gordon
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#define CONFIG_BIGNUM 1
+
+#endif /* CONFIG_H */
diff --git a/qjs.c b/qjs.c
index 4dd11f83beca07ff87dadd554d111dd089e5b18b..2cf2a2ce936dd514b9dc29df81512dccde7f8768 100644
--- a/qjs.c
+++ b/qjs.c
@@ -38,6 +38,7 @@
 #include <malloc.h>
 #endif
 
+#include "config.h"
 #include "cutils.h"
 #include "quickjs-libc.h"
 
diff --git a/quickjs.c b/quickjs.c
index b9f0db3455287b5231bbb045503e016ff8b0e33f..40024dca9d568769563ebb0d587bb2b1c2b2bf8d 100644
--- a/quickjs.c
+++ b/quickjs.c
@@ -38,6 +38,7 @@
 #include <malloc.h>
 #endif
 
+#include "config.h"
 #include "cutils.h"
 #include "list.h"
 #include "quickjs.h"
@@ -54541,3 +54542,8 @@ JSValue JS_AceNewInstance(JSContext *ctx, int classId, int argc, JSValueConst *a
     JS_FreeValue(ctx, obj);
     return newInst;
 }
+
+JSValue JS_NewString16(JSContext *ctx, const uint16_t *buf, int len)
+{
+    return js_new_string16(ctx, buf, len);
+}
diff --git a/quickjs.h b/quickjs.h
index 540aa43f9e677755d9d2eb1c0eccc3cf49855aea..4400416e13adcccf9b6b97105b5af7bb926fec85 100644
--- a/quickjs.h
+++ b/quickjs.h
@@ -1072,6 +1072,8 @@ JSValue JS_AceNewInstance(JSContext *ctx, int classId, int argc, JSValueConst *a
 #undef js_unlikely
 #undef js_force_inline
 
+JSValue JS_NewString16(JSContext *ctx, const uint16_t *buf, int len);
+
 #ifdef __cplusplus
 } /* extern "C" { */
 #endif