diff --git a/apex/apex.go b/apex/apex.go
index d0c1a09..b29017d 100644
--- a/apex/apex.go
+++ b/apex/apex.go
@@ -1750,9 +1750,15 @@
 			return false
 		}
 
+		dt := ctx.OtherModuleDependencyTag(child)
+
+		if _, ok := dt.(android.ExcludeFromApexContentsTag); ok {
+			return false
+		}
+
 		// Check for the direct dependencies that contribute to the payload
-		if dt, ok := ctx.OtherModuleDependencyTag(child).(dependencyTag); ok {
-			if dt.payload {
+		if adt, ok := dt.(dependencyTag); ok {
+			if adt.payload {
 				return do(ctx, parent, am, false /* externalDep */)
 			}
 			// As soon as the dependency graph crosses the APEX boundary, don't go further.
diff --git a/apex/apex_test.go b/apex/apex_test.go
index c2cb200..f064338 100644
--- a/apex/apex_test.go
+++ b/apex/apex_test.go
@@ -5791,6 +5791,41 @@
 	}
 }
 
+func TestNonPreferredPrebuiltDependency(t *testing.T) {
+	_, _ = testApex(t, `
+		apex {
+			name: "myapex",
+			key: "myapex.key",
+			native_shared_libs: ["mylib"],
+		}
+
+		apex_key {
+			name: "myapex.key",
+			public_key: "testkey.avbpubkey",
+			private_key: "testkey.pem",
+		}
+
+		cc_library {
+			name: "mylib",
+			srcs: ["mylib.cpp"],
+			stubs: {
+				versions: ["10000"],
+			},
+			apex_available: ["myapex"],
+		}
+
+		cc_prebuilt_library_shared {
+			name: "mylib",
+			prefer: false,
+			srcs: ["prebuilt.so"],
+			stubs: {
+				versions: ["10000"],
+			},
+			apex_available: ["myapex"],
+		}
+	`)
+}
+
 func TestMain(m *testing.M) {
 	run := func() int {
 		setUp()
diff --git a/sdk/cc_sdk_test.go b/sdk/cc_sdk_test.go
index 123fe70..c59cd30 100644
--- a/sdk/cc_sdk_test.go
+++ b/sdk/cc_sdk_test.go
@@ -69,6 +69,28 @@
 	ensureListContains(t, inputs, arm64Output.String())
 }
 
+func TestSdkCompileMultilibOverride(t *testing.T) {
+	result := testSdkWithCc(t, `
+		sdk {
+			name: "mysdk",
+			native_shared_libs: ["sdkmember"],
+			compile_multilib: "64",
+		}
+
+		cc_library_shared {
+			name: "sdkmember",
+			srcs: ["Test.cpp"],
+			stl: "none",
+			compile_multilib: "64",
+		}
+	`)
+
+	result.CheckSnapshot("mysdk", "",
+		checkAllCopyRules(`
+.intermediates/sdkmember/android_arm64_armv8-a_shared/sdkmember.so -> arm64/lib/sdkmember.so
+`))
+}
+
 func TestBasicSdkWithCc(t *testing.T) {
 	result := testSdkWithCc(t, `
 		sdk {
@@ -79,6 +101,8 @@
 		cc_library_shared {
 			name: "sdkmember",
 			system_shared_libs: [],
+			stl: "none",
+			apex_available: ["mysdkapex"],
 		}
 
 		sdk_snapshot {
@@ -152,6 +176,13 @@
 			key: "myapex.key",
 			certificate: ":myapex.cert",
 		}
+
+		apex {
+			name: "mysdkapex",
+			native_shared_libs: ["sdkmember"],
+			key: "myapex.key",
+			certificate: ":myapex.cert",
+		}
 	`)
 
 	sdkMemberV1 := result.ModuleForTests("sdkmember_mysdk_1", "android_arm64_armv8-a_shared_myapex").Rule("toc").Output
diff --git a/sdk/sdk.go b/sdk/sdk.go
index b9b8199..3e76008 100644
--- a/sdk/sdk.go
+++ b/sdk/sdk.go
@@ -218,7 +218,7 @@
 			Compile_multilib *string
 		}
 		p := &props{Compile_multilib: proptools.StringPtr("both")}
-		ctx.AppendProperties(p)
+		ctx.PrependProperties(p)
 	})
 	return s
 }
@@ -330,6 +330,11 @@
 	blueprint.BaseDependencyTag
 }
 
+// Mark this tag so dependencies that use it are excluded from APEX contents.
+func (t dependencyTag) ExcludeFromApexContents() {}
+
+var _ android.ExcludeFromApexContentsTag = dependencyTag{}
+
 // For dependencies from an in-development version of an SDK member to frozen versions of the same member
 // e.g. libfoo -> libfoo.mysdk.11 and libfoo.mysdk.12
 type sdkMemberVersionedDepTag struct {
diff --git a/sdk/testing.go b/sdk/testing.go
index 40abdcd..4d029e4 100644
--- a/sdk/testing.go
+++ b/sdk/testing.go
@@ -44,14 +44,15 @@
 	` + cc.GatherRequiredDepsForTest(android.Android, android.Windows)
 
 	mockFS := map[string][]byte{
-		"build/make/target/product/security":         nil,
-		"apex_manifest.json":                         nil,
-		"system/sepolicy/apex/myapex-file_contexts":  nil,
-		"system/sepolicy/apex/myapex2-file_contexts": nil,
-		"myapex.avbpubkey":                           nil,
-		"myapex.pem":                                 nil,
-		"myapex.x509.pem":                            nil,
-		"myapex.pk8":                                 nil,
+		"build/make/target/product/security":           nil,
+		"apex_manifest.json":                           nil,
+		"system/sepolicy/apex/myapex-file_contexts":    nil,
+		"system/sepolicy/apex/myapex2-file_contexts":   nil,
+		"system/sepolicy/apex/mysdkapex-file_contexts": nil,
+		"myapex.avbpubkey":                             nil,
+		"myapex.pem":                                   nil,
+		"myapex.x509.pem":                              nil,
+		"myapex.pk8":                                   nil,
 	}
 
 	cc.GatherRequiredFilesForTest(mockFS)