diff --git a/tools/aapt/Utils.cpp b/tools/aapt/Utils.cpp
new file mode 100644
index 0000000..36b018e
--- /dev/null
+++ b/tools/aapt/Utils.cpp
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2005 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Utils.h"
+
+#include <utils/Compat.h>
+
+// Separator used by resource paths. This is not platform dependent contrary
+// to OS_PATH_SEPARATOR.
+#define RES_PATH_SEPARATOR '/'
+
+using android::String8;
+
+void convertToResPath([[maybe_unused]] String8& s) {
+#if OS_PATH_SEPARATOR != RES_PATH_SEPARATOR
+    size_t len = s.length();
+    if (len > 0) {
+        char* buf = s.lockBuffer(len);
+        for (char* end = buf + len; buf < end; ++buf) {
+            if (*buf == OS_PATH_SEPARATOR) *buf = RES_PATH_SEPARATOR;
+        }
+        s.unlockBuffer(len);
+    }
+#endif
+}