diff --git a/libs/arect/Android.bp b/libs/arect/Android.bp
index bb40f51..3c6769f 100644
--- a/libs/arect/Android.bp
+++ b/libs/arect/Android.bp
@@ -39,9 +39,16 @@
 
 cc_library_headers {
     name: "libarect_headers",
+    vendor_available: true,
+    min_sdk_version: "29",
     // TODO(b/153609531): remove when no longer needed.
     native_bridge_supported: true,
     export_include_dirs: ["include"],
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.media",
+        "com.android.media.swcodec",
+    ],
 }
 
 cc_library_static {
diff --git a/libs/attestation/Android.bp b/libs/attestation/Android.bp
index ea3c341..2bf15d4 100644
--- a/libs/attestation/Android.bp
+++ b/libs/attestation/Android.bp
@@ -28,11 +28,9 @@
         "-Werror",
     ],
     srcs: [
-        "HmacKeyManager.cpp"
+        "HmacKeyManager.cpp",
     ],
 
-    clang: true,
-
     shared_libs: [
         "liblog",
         "libcrypto",
diff --git a/libs/binder/include/binder/Parcel.h b/libs/binder/include/binder/Parcel.h
index e2b2c51..39d0c90 100644
--- a/libs/binder/include/binder/Parcel.h
+++ b/libs/binder/include/binder/Parcel.h
@@ -76,6 +76,11 @@
     size_t              dataCapacity() const;
 
     status_t            setDataSize(size_t size);
+
+    // this must only be used to set a data position that was previously returned from
+    // dataPosition(). If writes are made, the exact same types of writes must be made (e.g.
+    // auto i = p.dataPosition(); p.writeInt32(0); p.setDataPosition(i); p.writeInt32(1);).
+    // Writing over objects, such as file descriptors and binders, is not supported.
     void                setDataPosition(size_t pos) const;
     status_t            setDataCapacity(size_t size);
 
diff --git a/libs/binder/ndk/include_ndk/android/binder_parcel.h b/libs/binder/ndk/include_ndk/android/binder_parcel.h
index 8457581..f68612c 100644
--- a/libs/binder/ndk/include_ndk/android/binder_parcel.h
+++ b/libs/binder/ndk/include_ndk/android/binder_parcel.h
@@ -59,6 +59,11 @@
 /**
  * Sets the position within the parcel.
  *
+ * This must be called with a position that has been previously returned from
+ * AParcel_getDataPosition. If writes are made after setting the data position, they must
+ * be made in the exact same sequence used before resetting data position. Writing over
+ * objects such as binders or file descriptors is not supported.
+ *
  * Available since API level 29.
  *
  * \param parcel The parcel of which to set the position.
diff --git a/libs/nativedisplay/Android.bp b/libs/nativedisplay/Android.bp
index ed728dc..4659b96 100644
--- a/libs/nativedisplay/Android.bp
+++ b/libs/nativedisplay/Android.bp
@@ -33,7 +33,7 @@
 
 cc_library_headers {
     name: "libnativedisplay_headers",
-    export_include_dirs: ["include",],
+    export_include_dirs: ["include"],
 }
 
 cc_library_shared {
@@ -43,8 +43,6 @@
         "include-private",
     ],
 
-    clang: true,
-
     cflags: [
         "-Wall",
         "-Werror",
diff --git a/libs/nativewindow/Android.bp b/libs/nativewindow/Android.bp
index 9286009..f7d2451 100644
--- a/libs/nativewindow/Android.bp
+++ b/libs/nativewindow/Android.bp
@@ -64,7 +64,7 @@
         symbol_file: "libnativewindow.map.txt",
         unversioned: true,
         override_export_include_dirs: [
-            "include"
+            "include",
         ],
     },
     export_include_dirs: [
@@ -72,8 +72,6 @@
         "include-private",
     ],
 
-    clang: true,
-
     cflags: [
         "-Wall",
         "-Werror",