diff --git a/frameworks/i18n/BUILD.gn b/frameworks/i18n/BUILD.gn
index 864e3797ff19469794d2c937ac8607e657cccb26..8b545329ee177f138d033f32e5db39b4192bd382 100644
--- a/frameworks/i18n/BUILD.gn
+++ b/frameworks/i18n/BUILD.gn
@@ -42,6 +42,13 @@ config("locale_config") {
     "//base/global/i18n_lite/frameworks/i18n/include",
     "//third_party/bounds_checking_function/include",
   ]
+
+  cflags = [
+    "-fno-common",
+    "-fno-strict-aliasing",
+    "-O2",
+    "-Wall",
+  ]
 }
 
 copy("global_dat") {
diff --git a/interfaces/kits/js/builtin/BUILD.gn b/interfaces/kits/js/builtin/BUILD.gn
index 03424270df236d43002494a752655cd1679a0781..7ef21e3a710f32af04feeb35a8d7c90ac2c8d2ff 100644
--- a/interfaces/kits/js/builtin/BUILD.gn
+++ b/interfaces/kits/js/builtin/BUILD.gn
@@ -15,6 +15,8 @@ import("//build/ohos.gni")
 
 config("nativeapi_locale_simulator_config") {
   cflags = [
+    "-fno-common",
+    "-fno-strict-aliasing",
     "-D_INC_STRING_S",
     "-D_INC_WCHAR_S",
     "-D_SECIMP=//",
@@ -22,7 +24,9 @@ config("nativeapi_locale_simulator_config") {
     "-D_INC_STDIO_S",
     "-D_INC_STDLIB_S",
     "-D_INC_MEMORY_S",
+    "-O2",
     "-pipe",
+    "-Wall",
     "-Wdate-time",
     "-Wfloat-equal",
     "-Wformat=2",