diff --git a/libs/binder/Android.bp b/libs/binder/Android.bp
index 1c8aa37..1abde5c 100644
--- a/libs/binder/Android.bp
+++ b/libs/binder/Android.bp
@@ -268,21 +268,6 @@
         "-DANDROID_BASE_UNIQUE_FD_DISABLE_IMPLICIT_CONVERSION",
         "-DANDROID_UTILS_REF_BASE_DISABLE_IMPLICIT_CONSTRUCTION",
     ],
-
-    target: {
-        bionic: {
-            // Hide symbols by default and set the BUILDING_LIBBINDER macro so that
-            // the code knows to export them.
-            //
-            // Only enabled on bionic builds, where RTTI is disabled, because
-            // it is failing to export required typeinfo symbols.
-            // TODO: b/341341056 - Find a solution for non-bionic builds.
-            cflags: [
-                "-fvisibility=hidden",
-                "-DBUILDING_LIBBINDER",
-            ],
-        },
-    },
 }
 
 cc_defaults {
diff --git a/libs/binder/BackendUnifiedServiceManager.cpp b/libs/binder/BackendUnifiedServiceManager.cpp
index 496c5ef..b0d3048 100644
--- a/libs/binder/BackendUnifiedServiceManager.cpp
+++ b/libs/binder/BackendUnifiedServiceManager.cpp
@@ -15,6 +15,10 @@
  */
 #include "BackendUnifiedServiceManager.h"
 
+#if defined(__BIONIC__) && !defined(__ANDROID_VNDK__)
+#include <android-base/properties.h>
+#endif
+
 namespace android {
 
 using AidlServiceManager = android::os::IServiceManager;
diff --git a/libs/binder/BackendUnifiedServiceManager.h b/libs/binder/BackendUnifiedServiceManager.h
index a67d5ba..d72b5bb 100644
--- a/libs/binder/BackendUnifiedServiceManager.h
+++ b/libs/binder/BackendUnifiedServiceManager.h
@@ -15,7 +15,6 @@
  */
 #pragma once
 
-#include <android-base/properties.h>
 #include <android/os/BnServiceManager.h>
 #include <android/os/IServiceManager.h>
 #include <binder/IPCThreadState.h>
diff --git a/libs/binder/IServiceManager.cpp b/libs/binder/IServiceManager.cpp
index 50d00ae..2095586 100644
--- a/libs/binder/IServiceManager.cpp
+++ b/libs/binder/IServiceManager.cpp
@@ -16,8 +16,8 @@
 
 #define LOG_TAG "ServiceManagerCppClient"
 
-#include <BackendUnifiedServiceManager.h>
 #include <binder/IServiceManager.h>
+#include "BackendUnifiedServiceManager.h"
 
 #include <inttypes.h>
 #include <unistd.h>
diff --git a/libs/binder/include/binder/Functional.h b/libs/binder/include/binder/Functional.h
index 08e3b21..bb0e5f4 100644
--- a/libs/binder/include/binder/Functional.h
+++ b/libs/binder/include/binder/Functional.h
@@ -17,11 +17,38 @@
 #pragma once
 
 #include <functional>
-#include <memory>
+#include <optional>
 
 namespace android::binder::impl {
 
 template <typename F>
+class scope_guard;
+
+template <typename F>
+scope_guard<F> make_scope_guard(F f);
+
+template <typename F>
+class scope_guard {
+public:
+    inline ~scope_guard() {
+        if (f_.has_value()) std::move(f_.value())();
+    }
+    inline void release() { f_.reset(); }
+
+private:
+    friend scope_guard<F> android::binder::impl::make_scope_guard(F);
+
+    inline scope_guard(F&& f) : f_(std::move(f)) {}
+
+    std::optional<F> f_;
+};
+
+template <typename F>
+inline scope_guard<F> make_scope_guard(F f) {
+    return scope_guard<F>(std::move(f));
+}
+
+template <typename F>
 constexpr void assert_small_callable() {
     // While this buffer (std::function::__func::__buf_) is an implementation detail generally not
     // accessible to users, it's a good bet to assume its size to be around 3 pointers.
@@ -32,12 +59,6 @@
                   "Try using std::ref, but make sure lambda lives long enough to be called.");
 }
 
-template <typename F>
-std::unique_ptr<void, std::function<void(void*)>> make_scope_guard(F&& f) {
-    assert_small_callable<decltype(std::bind(f))>();
-    return {reinterpret_cast<void*>(true), std::bind(f)};
-}
-
 template <typename T>
 class SmallFunction : public std::function<T> {
 public:
diff --git a/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp b/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
index 966ec95..666b3af 100644
--- a/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
+++ b/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
@@ -826,22 +826,22 @@
 
 class MyResultReceiver : public BnResultReceiver {
    public:
-    Mutex mMutex;
-    Condition mCondition;
+    std::mutex mMutex;
+    std::condition_variable mCondition;
     bool mHaveResult = false;
     int32_t mResult = 0;
 
     virtual void send(int32_t resultCode) {
-        AutoMutex _l(mMutex);
+        std::unique_lock<std::mutex> _l(mMutex);
         mResult = resultCode;
         mHaveResult = true;
-        mCondition.signal();
+        mCondition.notify_one();
     }
 
     int32_t waitForResult() {
-        AutoMutex _l(mMutex);
+        std::unique_lock<std::mutex> _l(mMutex);
         while (!mHaveResult) {
-            mCondition.wait(mMutex);
+            mCondition.wait(_l);
         }
         return mResult;
     }