diff --git a/android/apex.go b/android/apex.go
index 4618fe9..be9adc4 100644
--- a/android/apex.go
+++ b/android/apex.go
@@ -54,6 +54,10 @@
 	// True if this module comes from an updatable apexBundle.
 	Updatable bool
 
+	// True if this module can use private platform APIs. Only non-updatable APEX can set this
+	// to true.
+	UsePlatformApis bool
+
 	// The list of SDK modules that the containing apexBundle depends on.
 	RequiredSdks SdkRefs
 
@@ -91,12 +95,17 @@
 // of a module can be deduped into one variation. For example, if libfoo is included in both apex.a
 // and apex.b, and if the two APEXes have the same min_sdk_version (say 29), then libfoo doesn't
 // have to be built twice, but only once. In that case, the two apex variations apex.a and apex.b
-// are configured to have the same alias variation named apex29.
+// are configured to have the same alias variation named apex29. Whether platform APIs is allowed
+// or not also matters; if two APEXes don't have the same allowance, they get different names and
+// thus wouldn't be merged.
 func (i ApexInfo) mergedName(ctx PathContext) string {
 	name := "apex" + strconv.Itoa(i.MinSdkVersion.FinalOrFutureInt())
 	for _, sdk := range i.RequiredSdks {
 		name += "_" + sdk.Name + "_" + sdk.Version
 	}
+	if i.UsePlatformApis {
+		name += "_private"
+	}
 	return name
 }
 
@@ -527,6 +536,10 @@
 			merged[index].InApexModules = append(merged[index].InApexModules, apexInfo.InApexModules...)
 			merged[index].ApexContents = append(merged[index].ApexContents, apexInfo.ApexContents...)
 			merged[index].Updatable = merged[index].Updatable || apexInfo.Updatable
+			if merged[index].UsePlatformApis != apexInfo.UsePlatformApis {
+				panic(fmt.Errorf("variants having different UsePlatformApis can't be merged"))
+			}
+			merged[index].UsePlatformApis = apexInfo.UsePlatformApis
 		} else {
 			seen[mergedName] = len(merged)
 			apexInfo.ApexVariationName = mergedName
diff --git a/android/apex_test.go b/android/apex_test.go
index e112369..60a639b 100644
--- a/android/apex_test.go
+++ b/android/apex_test.go
@@ -33,10 +33,10 @@
 		{
 			name: "single",
 			in: []ApexInfo{
-				{"foo", FutureApiLevel, false, nil, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
+				{"foo", FutureApiLevel, false, false, nil, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
 			},
 			wantMerged: []ApexInfo{
-				{"apex10000", FutureApiLevel, false, nil, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
+				{"apex10000", FutureApiLevel, false, false, nil, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
 			},
 			wantAliases: [][2]string{
 				{"foo", "apex10000"},
@@ -45,11 +45,11 @@
 		{
 			name: "merge",
 			in: []ApexInfo{
-				{"foo", FutureApiLevel, false, SdkRefs{{"baz", "1"}}, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
-				{"bar", FutureApiLevel, false, SdkRefs{{"baz", "1"}}, []string{"bar"}, []string{"bar"}, nil, NotForPrebuiltApex},
+				{"foo", FutureApiLevel, false, false, SdkRefs{{"baz", "1"}}, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
+				{"bar", FutureApiLevel, false, false, SdkRefs{{"baz", "1"}}, []string{"bar"}, []string{"bar"}, nil, NotForPrebuiltApex},
 			},
 			wantMerged: []ApexInfo{
-				{"apex10000_baz_1", FutureApiLevel, false, SdkRefs{{"baz", "1"}}, []string{"bar", "foo"}, []string{"bar", "foo"}, nil, false}},
+				{"apex10000_baz_1", FutureApiLevel, false, false, SdkRefs{{"baz", "1"}}, []string{"bar", "foo"}, []string{"bar", "foo"}, nil, false}},
 			wantAliases: [][2]string{
 				{"bar", "apex10000_baz_1"},
 				{"foo", "apex10000_baz_1"},
@@ -58,12 +58,12 @@
 		{
 			name: "don't merge version",
 			in: []ApexInfo{
-				{"foo", FutureApiLevel, false, nil, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
-				{"bar", uncheckedFinalApiLevel(30), false, nil, []string{"bar"}, []string{"bar"}, nil, NotForPrebuiltApex},
+				{"foo", FutureApiLevel, false, false, nil, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
+				{"bar", uncheckedFinalApiLevel(30), false, false, nil, []string{"bar"}, []string{"bar"}, nil, NotForPrebuiltApex},
 			},
 			wantMerged: []ApexInfo{
-				{"apex30", uncheckedFinalApiLevel(30), false, nil, []string{"bar"}, []string{"bar"}, nil, NotForPrebuiltApex},
-				{"apex10000", FutureApiLevel, false, nil, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
+				{"apex30", uncheckedFinalApiLevel(30), false, false, nil, []string{"bar"}, []string{"bar"}, nil, NotForPrebuiltApex},
+				{"apex10000", FutureApiLevel, false, false, nil, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
 			},
 			wantAliases: [][2]string{
 				{"bar", "apex30"},
@@ -73,11 +73,11 @@
 		{
 			name: "merge updatable",
 			in: []ApexInfo{
-				{"foo", FutureApiLevel, false, nil, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
-				{"bar", FutureApiLevel, true, nil, []string{"bar"}, []string{"bar"}, nil, NotForPrebuiltApex},
+				{"foo", FutureApiLevel, false, false, nil, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
+				{"bar", FutureApiLevel, true, false, nil, []string{"bar"}, []string{"bar"}, nil, NotForPrebuiltApex},
 			},
 			wantMerged: []ApexInfo{
-				{"apex10000", FutureApiLevel, true, nil, []string{"bar", "foo"}, []string{"bar", "foo"}, nil, NotForPrebuiltApex},
+				{"apex10000", FutureApiLevel, true, false, nil, []string{"bar", "foo"}, []string{"bar", "foo"}, nil, NotForPrebuiltApex},
 			},
 			wantAliases: [][2]string{
 				{"bar", "apex10000"},
@@ -87,12 +87,12 @@
 		{
 			name: "don't merge sdks",
 			in: []ApexInfo{
-				{"foo", FutureApiLevel, false, SdkRefs{{"baz", "1"}}, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
-				{"bar", FutureApiLevel, false, SdkRefs{{"baz", "2"}}, []string{"bar"}, []string{"bar"}, nil, NotForPrebuiltApex},
+				{"foo", FutureApiLevel, false, false, SdkRefs{{"baz", "1"}}, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
+				{"bar", FutureApiLevel, false, false, SdkRefs{{"baz", "2"}}, []string{"bar"}, []string{"bar"}, nil, NotForPrebuiltApex},
 			},
 			wantMerged: []ApexInfo{
-				{"apex10000_baz_2", FutureApiLevel, false, SdkRefs{{"baz", "2"}}, []string{"bar"}, []string{"bar"}, nil, NotForPrebuiltApex},
-				{"apex10000_baz_1", FutureApiLevel, false, SdkRefs{{"baz", "1"}}, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
+				{"apex10000_baz_2", FutureApiLevel, false, false, SdkRefs{{"baz", "2"}}, []string{"bar"}, []string{"bar"}, nil, NotForPrebuiltApex},
+				{"apex10000_baz_1", FutureApiLevel, false, false, SdkRefs{{"baz", "1"}}, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
 			},
 			wantAliases: [][2]string{
 				{"bar", "apex10000_baz_2"},
@@ -102,21 +102,36 @@
 		{
 			name: "don't merge when for prebuilt_apex",
 			in: []ApexInfo{
-				{"foo", FutureApiLevel, false, nil, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
-				{"bar", FutureApiLevel, true, nil, []string{"bar"}, []string{"bar"}, nil, NotForPrebuiltApex},
+				{"foo", FutureApiLevel, false, false, nil, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
+				{"bar", FutureApiLevel, true, false, nil, []string{"bar"}, []string{"bar"}, nil, NotForPrebuiltApex},
 				// This one should not be merged in with the others because it is for
 				// a prebuilt_apex.
-				{"baz", FutureApiLevel, true, nil, []string{"baz"}, []string{"baz"}, nil, ForPrebuiltApex},
+				{"baz", FutureApiLevel, true, false, nil, []string{"baz"}, []string{"baz"}, nil, ForPrebuiltApex},
 			},
 			wantMerged: []ApexInfo{
-				{"apex10000", FutureApiLevel, true, nil, []string{"bar", "foo"}, []string{"bar", "foo"}, nil, NotForPrebuiltApex},
-				{"baz", FutureApiLevel, true, nil, []string{"baz"}, []string{"baz"}, nil, ForPrebuiltApex},
+				{"apex10000", FutureApiLevel, true, false, nil, []string{"bar", "foo"}, []string{"bar", "foo"}, nil, NotForPrebuiltApex},
+				{"baz", FutureApiLevel, true, false, nil, []string{"baz"}, []string{"baz"}, nil, ForPrebuiltApex},
 			},
 			wantAliases: [][2]string{
 				{"bar", "apex10000"},
 				{"foo", "apex10000"},
 			},
 		},
+		{
+			name: "don't merge different UsePlatformApis",
+			in: []ApexInfo{
+				{"foo", FutureApiLevel, false, false, nil, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
+				{"bar", FutureApiLevel, false, true, nil, []string{"bar"}, []string{"bar"}, nil, NotForPrebuiltApex},
+			},
+			wantMerged: []ApexInfo{
+				{"apex10000_private", FutureApiLevel, false, true, nil, []string{"bar"}, []string{"bar"}, nil, NotForPrebuiltApex},
+				{"apex10000", FutureApiLevel, false, false, nil, []string{"foo"}, []string{"foo"}, nil, NotForPrebuiltApex},
+			},
+			wantAliases: [][2]string{
+				{"bar", "apex10000_private"},
+				{"foo", "apex10000"},
+			},
+		},
 	}
 
 	for _, tt := range tests {