diff --git a/cc/cc.go b/cc/cc.go
index 2d967ed50..358bff61a 100644
--- a/cc/cc.go
+++ b/cc/cc.go
@@ -1089,10 +1089,6 @@ func (c *Module) clang(ctx BaseModuleContext) bool {
 		ctx.PropertyErrorf("clang", "false (GCC) is no longer supported")
 	}
 
-	if !c.toolchain(ctx).ClangSupported() {
-		panic("GCC is no longer supported")
-	}
-
 	return !c.Properties.Gcc
 }
 
diff --git a/cc/config/toolchain.go b/cc/config/toolchain.go
index fefe7c2c3..930b18ffc 100644
--- a/cc/config/toolchain.go
+++ b/cc/config/toolchain.go
@@ -57,7 +57,6 @@ type Toolchain interface {
 	IncludeFlags() string
 	InstructionSetFlags(string) (string, error)
 
-	ClangSupported() bool
 	ClangTriple() string
 	ToolchainClangCflags() string
 	ToolchainClangLdflags() string
@@ -132,10 +131,6 @@ func (toolchainBase) ToolchainClangLdflags() string {
 	return ""
 }
 
-func (toolchainBase) ClangSupported() bool {
-	return true
-}
-
 func (toolchainBase) ShlibSuffix() string {
 	return ".so"
 }
diff --git a/cc/config/x86_windows_host.go b/cc/config/x86_windows_host.go
index 9003e858c..65b9e6c42 100644
--- a/cc/config/x86_windows_host.go
+++ b/cc/config/x86_windows_host.go
@@ -233,10 +233,6 @@ func (t *toolchainWindowsX8664) WindresFlags() string {
 	return "-F pe-x86-64"
 }
 
-func (t *toolchainWindows) ClangSupported() bool {
-	return true
-}
-
 func (t *toolchainWindowsX86) ClangTriple() string {
 	return "i686-windows-gnu"
 }
diff --git a/cc/makevars.go b/cc/makevars.go
index c4ef5f1e5..51089fdd3 100644
--- a/cc/makevars.go
+++ b/cc/makevars.go
@@ -136,7 +136,6 @@ func makeVarsProvider(ctx android.MakeVarsContext) {
 
 	ctx.Strict("DEFAULT_C_STD_VERSION", config.CStdVersion)
 	ctx.Strict("DEFAULT_CPP_STD_VERSION", config.CppStdVersion)
-	ctx.Strict("DEFAULT_GCC_CPP_STD_VERSION", config.GccCppStdVersion)
 	ctx.Strict("EXPERIMENTAL_C_STD_VERSION", config.ExperimentalCStdVersion)
 	ctx.Strict("EXPERIMENTAL_CPP_STD_VERSION", config.ExperimentalCppStdVersion)
 
@@ -217,34 +216,6 @@ func makeVarsToolchain(ctx android.MakeVarsContext, secondPrefix string,
 		productExtraLdflags += "-static"
 	}
 
-	ctx.Strict(makePrefix+"GLOBAL_CFLAGS", strings.Join([]string{
-		toolchain.Cflags(),
-		"${config.CommonGlobalCflags}",
-		fmt.Sprintf("${config.%sGlobalCflags}", hod),
-		toolchain.ToolchainCflags(),
-		productExtraCflags,
-	}, " "))
-	ctx.Strict(makePrefix+"GLOBAL_CONLYFLAGS", strings.Join([]string{
-		"${config.CommonGlobalConlyflags}",
-	}, " "))
-	ctx.Strict(makePrefix+"GLOBAL_CPPFLAGS", strings.Join([]string{
-		"${config.CommonGlobalCppflags}",
-		fmt.Sprintf("${config.%sGlobalCppflags}", hod),
-		toolchain.Cppflags(),
-	}, " "))
-	ctx.Strict(makePrefix+"GLOBAL_LDFLAGS", strings.Join([]string{
-		fmt.Sprintf("${config.%sGlobalLdflags}", hod),
-		toolchain.Ldflags(),
-		toolchain.ToolchainLdflags(),
-		productExtraLdflags,
-	}, " "))
-	ctx.Strict(makePrefix+"GLOBAL_LLDFLAGS", strings.Join([]string{
-		fmt.Sprintf("${config.%sGlobalLldflags}", hod),
-		toolchain.Ldflags(),
-		toolchain.ToolchainLdflags(),
-		productExtraLdflags,
-	}, " "))
-
 	includeFlags, err := ctx.Eval(toolchain.IncludeFlags())
 	if err != nil {
 		panic(err)
@@ -267,60 +238,51 @@ func makeVarsToolchain(ctx android.MakeVarsContext, secondPrefix string,
 		ctx.Strict(makePrefix+"thumb_CFLAGS", flags)
 	}
 
-	if toolchain.ClangSupported() {
-		clangPrefix := secondPrefix + "CLANG_" + typePrefix
-		clangExtras := "-target " + toolchain.ClangTriple()
-		clangExtras += " -B" + config.ToolPath(toolchain)
+	clangPrefix := secondPrefix + "CLANG_" + typePrefix
+	clangExtras := "-target " + toolchain.ClangTriple()
+	clangExtras += " -B" + config.ToolPath(toolchain)
 
-		ctx.Strict(clangPrefix+"GLOBAL_CFLAGS", strings.Join([]string{
-			toolchain.ClangCflags(),
-			"${config.CommonClangGlobalCflags}",
-			fmt.Sprintf("${config.%sClangGlobalCflags}", hod),
-			toolchain.ToolchainClangCflags(),
-			clangExtras,
-			productExtraCflags,
-		}, " "))
-		ctx.Strict(clangPrefix+"GLOBAL_CPPFLAGS", strings.Join([]string{
-			"${config.CommonClangGlobalCppflags}",
-			fmt.Sprintf("${config.%sGlobalCppflags}", hod),
-			toolchain.ClangCppflags(),
-		}, " "))
-		ctx.Strict(clangPrefix+"GLOBAL_LDFLAGS", strings.Join([]string{
-			fmt.Sprintf("${config.%sGlobalLdflags}", hod),
-			toolchain.ClangLdflags(),
-			toolchain.ToolchainClangLdflags(),
-			productExtraLdflags,
-			clangExtras,
-		}, " "))
-		ctx.Strict(clangPrefix+"GLOBAL_LLDFLAGS", strings.Join([]string{
-			fmt.Sprintf("${config.%sGlobalLldflags}", hod),
-			toolchain.ClangLldflags(),
-			toolchain.ToolchainClangLdflags(),
-			productExtraLdflags,
-			clangExtras,
-		}, " "))
+	ctx.Strict(clangPrefix+"GLOBAL_CFLAGS", strings.Join([]string{
+		toolchain.ClangCflags(),
+		"${config.CommonClangGlobalCflags}",
+		fmt.Sprintf("${config.%sClangGlobalCflags}", hod),
+		toolchain.ToolchainClangCflags(),
+		clangExtras,
+		productExtraCflags,
+	}, " "))
+	ctx.Strict(clangPrefix+"GLOBAL_CPPFLAGS", strings.Join([]string{
+		"${config.CommonClangGlobalCppflags}",
+		fmt.Sprintf("${config.%sGlobalCppflags}", hod),
+		toolchain.ClangCppflags(),
+	}, " "))
+	ctx.Strict(clangPrefix+"GLOBAL_LDFLAGS", strings.Join([]string{
+		fmt.Sprintf("${config.%sGlobalLdflags}", hod),
+		toolchain.ClangLdflags(),
+		toolchain.ToolchainClangLdflags(),
+		productExtraLdflags,
+		clangExtras,
+	}, " "))
+	ctx.Strict(clangPrefix+"GLOBAL_LLDFLAGS", strings.Join([]string{
+		fmt.Sprintf("${config.%sGlobalLldflags}", hod),
+		toolchain.ClangLldflags(),
+		toolchain.ToolchainClangLdflags(),
+		productExtraLdflags,
+		clangExtras,
+	}, " "))
 
-		if target.Os.Class == android.Device {
-			ctx.Strict(secondPrefix+"ADDRESS_SANITIZER_RUNTIME_LIBRARY", strings.TrimSuffix(config.AddressSanitizerRuntimeLibrary(toolchain), ".so"))
-			ctx.Strict(secondPrefix+"HWADDRESS_SANITIZER_RUNTIME_LIBRARY", strings.TrimSuffix(config.HWAddressSanitizerRuntimeLibrary(toolchain), ".so"))
-			ctx.Strict(secondPrefix+"HWADDRESS_SANITIZER_STATIC_LIBRARY", strings.TrimSuffix(config.HWAddressSanitizerStaticLibrary(toolchain), ".a"))
-			ctx.Strict(secondPrefix+"UBSAN_RUNTIME_LIBRARY", strings.TrimSuffix(config.UndefinedBehaviorSanitizerRuntimeLibrary(toolchain), ".so"))
-			ctx.Strict(secondPrefix+"UBSAN_MINIMAL_RUNTIME_LIBRARY", strings.TrimSuffix(config.UndefinedBehaviorSanitizerMinimalRuntimeLibrary(toolchain), ".a"))
-			ctx.Strict(secondPrefix+"TSAN_RUNTIME_LIBRARY", strings.TrimSuffix(config.ThreadSanitizerRuntimeLibrary(toolchain), ".so"))
-			ctx.Strict(secondPrefix+"SCUDO_RUNTIME_LIBRARY", strings.TrimSuffix(config.ScudoRuntimeLibrary(toolchain), ".so"))
-		}
-
-		// This is used by external/gentoo/...
-		ctx.Strict("CLANG_CONFIG_"+target.Arch.ArchType.Name+"_"+typePrefix+"TRIPLE",
-			toolchain.ClangTriple())
-
-		ctx.Strict(makePrefix+"CLANG_SUPPORTED", "true")
-	} else {
-		ctx.Strict(makePrefix+"CLANG_SUPPORTED", "")
+	if target.Os.Class == android.Device {
+		ctx.Strict(secondPrefix+"ADDRESS_SANITIZER_RUNTIME_LIBRARY", strings.TrimSuffix(config.AddressSanitizerRuntimeLibrary(toolchain), ".so"))
+		ctx.Strict(secondPrefix+"HWADDRESS_SANITIZER_RUNTIME_LIBRARY", strings.TrimSuffix(config.HWAddressSanitizerRuntimeLibrary(toolchain), ".so"))
+		ctx.Strict(secondPrefix+"HWADDRESS_SANITIZER_STATIC_LIBRARY", strings.TrimSuffix(config.HWAddressSanitizerStaticLibrary(toolchain), ".a"))
+		ctx.Strict(secondPrefix+"UBSAN_RUNTIME_LIBRARY", strings.TrimSuffix(config.UndefinedBehaviorSanitizerRuntimeLibrary(toolchain), ".so"))
+		ctx.Strict(secondPrefix+"UBSAN_MINIMAL_RUNTIME_LIBRARY", strings.TrimSuffix(config.UndefinedBehaviorSanitizerMinimalRuntimeLibrary(toolchain), ".a"))
+		ctx.Strict(secondPrefix+"TSAN_RUNTIME_LIBRARY", strings.TrimSuffix(config.ThreadSanitizerRuntimeLibrary(toolchain), ".so"))
+		ctx.Strict(secondPrefix+"SCUDO_RUNTIME_LIBRARY", strings.TrimSuffix(config.ScudoRuntimeLibrary(toolchain), ".so"))
 	}
 
-	ctx.Strict(makePrefix+"CC", gccCmd(toolchain, "gcc"))
-	ctx.Strict(makePrefix+"CXX", gccCmd(toolchain, "g++"))
+	// This is used by external/gentoo/...
+	ctx.Strict("CLANG_CONFIG_"+target.Arch.ArchType.Name+"_"+typePrefix+"TRIPLE",
+		toolchain.ClangTriple())
 
 	if target.Os == android.Darwin {
 		ctx.Strict(makePrefix+"AR", "${config.MacArPath}")