diff --git a/android/buildinfo_prop.go b/android/buildinfo_prop.go
index defbff0..bba4c0d 100644
--- a/android/buildinfo_prop.go
+++ b/android/buildinfo_prop.go
@@ -15,8 +15,6 @@
 package android
 
 import (
-	"fmt"
-
 	"github.com/google/blueprint/proptools"
 )
 
@@ -41,20 +39,10 @@
 	installPath    InstallPath
 }
 
-var _ OutputFileProducer = (*buildinfoPropModule)(nil)
-
 func (p *buildinfoPropModule) installable() bool {
 	return proptools.BoolDefault(p.properties.Installable, true)
 }
 
-// OutputFileProducer
-func (p *buildinfoPropModule) OutputFiles(tag string) (Paths, error) {
-	if tag != "" {
-		return nil, fmt.Errorf("unsupported tag %q", tag)
-	}
-	return Paths{p.outputFilePath}, nil
-}
-
 func shouldAddBuildThumbprint(config Config) bool {
 	knownOemProperties := []string{
 		"ro.product.brand",
@@ -76,6 +64,8 @@
 		return
 	}
 	p.outputFilePath = PathForModuleOut(ctx, p.Name()).OutputPath
+	ctx.SetOutputFiles(Paths{p.outputFilePath}, "")
+
 	if !ctx.Config().KatiEnabled() {
 		WriteFileRule(ctx, p.outputFilePath, "# no buildinfo.prop if kati is disabled")
 		return
diff --git a/cc/afdo.go b/cc/afdo.go
index 00b2245..6921edf 100644
--- a/cc/afdo.go
+++ b/cc/afdo.go
@@ -176,6 +176,9 @@
 
 func (a *afdoTransitionMutator) Mutate(ctx android.BottomUpMutatorContext, variation string) {
 	if m, ok := ctx.Module().(*Module); ok && m.afdo != nil {
+		if !m.Enabled(ctx) {
+			return
+		}
 		if variation == "" {
 			// The empty variation is either a module that has enabled AFDO for itself, or the non-AFDO
 			// variant of a dependency.
diff --git a/cc/cmake_ext_add_aidl_library.txt b/cc/cmake_ext_add_aidl_library.txt
index aa3235e3..d5c134e 100644
--- a/cc/cmake_ext_add_aidl_library.txt
+++ b/cc/cmake_ext_add_aidl_library.txt
@@ -1,3 +1,12 @@
+if ("${CMAKE_HOST_SYSTEM_PROCESSOR}" MATCHES "^(arm|aarch)")
+    set(PREBUILTS_BIN_DIR "${CMAKE_CURRENT_SOURCE_DIR}/prebuilts/host/linux_musl-arm64/bin")
+else()
+    set(PREBUILTS_BIN_DIR "${CMAKE_CURRENT_SOURCE_DIR}/prebuilts/host/linux-x86/bin")
+endif()
+if (NOT AIDL_BIN)
+    find_program(AIDL_BIN aidl REQUIRED HINTS "${PREBUILTS_BIN_DIR}")
+endif()
+
 function(add_aidl_library NAME LANG AIDLROOT SOURCES AIDLFLAGS)
     if (${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.20")
         cmake_policy(SET CMP0116 NEW)
diff --git a/cc/cmake_main.txt b/cc/cmake_main.txt
index f6e21a6..eeabf53 100644
--- a/cc/cmake_main.txt
+++ b/cc/cmake_main.txt
@@ -6,20 +6,12 @@
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 include(AddAidlLibrary)
 include(AppendCxxFlagsIfSupported)
+include(FindThreads)
 
 if (NOT ANDROID_BUILD_TOP)
     set(ANDROID_BUILD_TOP "${CMAKE_CURRENT_SOURCE_DIR}")
 endif()
 
-if ("${CMAKE_HOST_SYSTEM_PROCESSOR}" MATCHES "^(arm|aarch)")
-    set(PREBUILTS_BIN_DIR "${CMAKE_CURRENT_SOURCE_DIR}/prebuilts/host/linux_musl-arm64/bin")
-else()
-    set(PREBUILTS_BIN_DIR "${CMAKE_CURRENT_SOURCE_DIR}/prebuilts/host/linux-x86/bin")
-endif()
-if (NOT AIDL_BIN)
-    find_program(AIDL_BIN aidl REQUIRED HINTS "${PREBUILTS_BIN_DIR}")
-endif()
-
 <<cflagsList .M.Name "_CFLAGS" .M.Properties.Cflags .M.Properties.Unportable_flags .M.Properties.Cflags_ignored>>
 
 <<range .Pprop.SystemPackages ->>
@@ -29,6 +21,7 @@
 add_subdirectory("${ANDROID_BUILD_TOP}/<<.>>" "<<.>>/build" EXCLUDE_FROM_ALL)
 <<end>>
 add_compile_options(${<<.M.Name>>_CFLAGS})
+link_libraries(${CMAKE_THREAD_LIBS_INIT})
 <<range $moduleDir, $value := .ModuleDirs ->>
 add_subdirectory(<<$moduleDir>>)
 <<end>>
diff --git a/cc/cmake_snapshot.go b/cc/cmake_snapshot.go
index a5f8708..c1df0e9 100644
--- a/cc/cmake_snapshot.go
+++ b/cc/cmake_snapshot.go
@@ -51,8 +51,10 @@
 var cmakeExtAppendFlags string
 
 var defaultUnportableFlags []string = []string{
+	"-Wno-c99-designator",
 	"-Wno-class-memaccess",
 	"-Wno-exit-time-destructors",
+	"-Winconsistent-missing-override",
 	"-Wno-inconsistent-missing-override",
 	"-Wreorder-init-list",
 	"-Wno-reorder-init-list",
@@ -67,6 +69,11 @@
 	"libc",
 	"libc++",
 	"libc++_static",
+	"libc_musl",
+	"libc_musl_crtbegin_so",
+	"libc_musl_crtbegin_static",
+	"libc_musl_crtend",
+	"libc_musl_crtend_so",
 	"libdl",
 	"libm",
 	"prebuilt_libclang_rt.builtins",
diff --git a/java/droidstubs.go b/java/droidstubs.go
index b32b754..0157185 100644
--- a/java/droidstubs.go
+++ b/java/droidstubs.go
@@ -1453,17 +1453,6 @@
 	stubsSrcJar android.Path
 }
 
-func (p *PrebuiltStubsSources) OutputFiles(tag string) (android.Paths, error) {
-	switch tag {
-	// prebuilt droidstubs does not output "exportable" stubs.
-	// Output the "everything" stubs srcjar file if the tag is ".exportable".
-	case "", ".exportable":
-		return android.Paths{p.stubsSrcJar}, nil
-	default:
-		return nil, fmt.Errorf("unsupported module reference tag %q", tag)
-	}
-}
-
 func (d *PrebuiltStubsSources) StubsSrcJar(_ StubsType) (android.Path, error) {
 	return d.stubsSrcJar, nil
 }
@@ -1502,6 +1491,11 @@
 		rule.Build("zip src", "Create srcjar from prebuilt source")
 		p.stubsSrcJar = outPath
 	}
+
+	ctx.SetOutputFiles(android.Paths{p.stubsSrcJar}, "")
+	// prebuilt droidstubs does not output "exportable" stubs.
+	// Output the "everything" stubs srcjar file if the tag is ".exportable".
+	ctx.SetOutputFiles(android.Paths{p.stubsSrcJar}, ".exportable")
 }
 
 func (p *PrebuiltStubsSources) Prebuilt() *android.Prebuilt {
diff --git a/ui/build/config.go b/ui/build/config.go
index c4a6797..1d5269c 100644
--- a/ui/build/config.go
+++ b/ui/build/config.go
@@ -99,9 +99,10 @@
 	// Autodetected
 	totalRAM uint64
 
-	brokenDupRules     bool
-	brokenUsesNetwork  bool
-	brokenNinjaEnvVars []string
+	brokenDupRules       bool
+	brokenUsesNetwork    bool
+	brokenNinjaEnvVars   []string
+	brokenMissingOutputs bool
 
 	pathReplaced bool
 
@@ -1608,6 +1609,14 @@
 	return c.brokenNinjaEnvVars
 }
 
+func (c *configImpl) SetBuildBrokenMissingOutputs(val bool) {
+	c.brokenMissingOutputs = val
+}
+
+func (c *configImpl) BuildBrokenMissingOutputs() bool {
+	return c.brokenMissingOutputs
+}
+
 func (c *configImpl) SetTargetDeviceDir(dir string) {
 	c.targetDeviceDir = dir
 }
diff --git a/ui/build/dumpvars.go b/ui/build/dumpvars.go
index eba86a0..e77df44 100644
--- a/ui/build/dumpvars.go
+++ b/ui/build/dumpvars.go
@@ -235,6 +235,11 @@
 		"BUILD_BROKEN_SRC_DIR_IS_WRITABLE",
 		"BUILD_BROKEN_SRC_DIR_RW_ALLOWLIST",
 
+		// Whether missing outputs should be treated as warnings
+		// instead of errors.
+		// `true` will relegate missing outputs to warnings.
+		"BUILD_BROKEN_MISSING_OUTPUTS",
+
 		// Not used, but useful to be in the soong.log
 		"TARGET_BUILD_TYPE",
 		"HOST_ARCH",
@@ -301,4 +306,5 @@
 	config.SetBuildBrokenUsesNetwork(makeVars["BUILD_BROKEN_USES_NETWORK"] == "true")
 	config.SetBuildBrokenNinjaUsesEnvVars(strings.Fields(makeVars["BUILD_BROKEN_NINJA_USES_ENV_VARS"]))
 	config.SetSourceRootDirs(strings.Fields(makeVars["PRODUCT_SOURCE_ROOT_DIRS"]))
+	config.SetBuildBrokenMissingOutputs(makeVars["BUILD_BROKEN_MISSING_OUTPUTS"] == "true")
 }
diff --git a/ui/build/ninja.go b/ui/build/ninja.go
index 551b8ab..ae27330 100644
--- a/ui/build/ninja.go
+++ b/ui/build/ninja.go
@@ -77,6 +77,14 @@
 		"-w", "dupbuild=err",
 		"-w", "missingdepfile=err")
 
+	if !config.BuildBrokenMissingOutputs() {
+		// Missing outputs will be treated as errors.
+		// BUILD_BROKEN_MISSING_OUTPUTS can be used to bypass this check.
+		args = append(args,
+			"-w", "missingoutfile=err",
+		)
+	}
+
 	cmd := Command(ctx, config, "ninja", executable, args...)
 
 	// Set up the nsjail sandbox Ninja runs in.