diff --git a/cc/config/clang.go b/cc/config/clang.go
index 7db405c..441bff2 100644
--- a/cc/config/clang.go
+++ b/cc/config/clang.go
@@ -42,7 +42,6 @@
 	"-Wno-literal-suffix",
 	"-Wno-maybe-uninitialized",
 	"-Wno-old-style-declaration",
-	"-Wno-psabi",
 	"-Wno-unused-but-set-parameter",
 	"-Wno-unused-but-set-variable",
 	"-Wno-unused-local-typedefs",
@@ -93,7 +92,9 @@
 // updated, some checks enabled by this module may be disabled if they have
 // become more strict, or if they are a new match for a wildcard group like
 // `modernize-*`.
-var ClangTidyDisableChecks = []string{}
+var ClangTidyDisableChecks = []string{
+	"misc-no-recursion",
+}
 
 func init() {
 	pctx.StaticVariable("ClangExtraCflags", strings.Join([]string{
@@ -103,6 +104,10 @@
 		// not emit the table by default on Android since NDK still uses GNU binutils.
 		"-faddrsig",
 
+		// Turn on -fcommon explicitly, since Clang now defaults to -fno-common. The cleanup bug
+		// tracking this is http://b/151457797.
+		"-fcommon",
+
 		// Help catch common 32/64-bit errors.
 		"-Werror=int-conversion",
 
@@ -183,6 +188,8 @@
 		"-Wno-enum-enum-conversion",                 // http://b/154138986
 		"-Wno-enum-float-conversion",                // http://b/154255917
 		"-Wno-pessimizing-move",                     // http://b/154270751
+		// New warnings to be fixed after clang-r399163
+		"-Wno-non-c-typedef-for-linkage", // http://b/161304145
 	}, " "))
 
 	// Extra cflags for external third-party projects to disable warnings that
@@ -205,6 +212,9 @@
 		"-Wno-xor-used-as-pow",
 		// http://b/145211022
 		"-Wno-final-dtor-non-final-class",
+
+		// http://b/165945989
+		"-Wno-psabi",
 	}, " "))
 }
 
diff --git a/cc/config/global.go b/cc/config/global.go
index 32f163d..098914e 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -114,6 +114,12 @@
 	noOverrideGlobalCflags = []string{
 		"-Werror=int-to-pointer-cast",
 		"-Werror=pointer-to-int-cast",
+		// http://b/161386391 for -Wno-void-pointer-to-enum-cast
+		"-Wno-void-pointer-to-enum-cast",
+		// http://b/161386391 for -Wno-void-pointer-to-int-cast
+		"-Wno-void-pointer-to-int-cast",
+		// http://b/161386391 for -Wno-pointer-to-int-cast
+		"-Wno-pointer-to-int-cast",
 		"-Werror=fortify-source",
 	}
 
@@ -130,8 +136,8 @@
 
 	// prebuilts/clang default settings.
 	ClangDefaultBase         = "prebuilts/clang/host"
-	ClangDefaultVersion      = "clang-r383902b"
-	ClangDefaultShortVersion = "11.0.2"
+	ClangDefaultVersion      = "clang-r399163"
+	ClangDefaultShortVersion = "11.0.4"
 
 	// Directories with warnings from Android.bp files.
 	WarningAllowedProjects = []string{
diff --git a/cc/config/x86_windows_host.go b/cc/config/x86_windows_host.go
index b5b5553..b77df79 100644
--- a/cc/config/x86_windows_host.go
+++ b/cc/config/x86_windows_host.go
@@ -39,6 +39,9 @@
 		// Get 64-bit off_t and related functions.
 		"-D_FILE_OFFSET_BITS=64",
 
+		// Don't adjust the layout of bitfields like msvc does.
+		"-mno-ms-bitfields",
+
 		"--sysroot ${WindowsGccRoot}/${WindowsGccTriple}",
 	}
 	windowsClangCflags = append(ClangFilterUnknownCflags(windowsCflags), []string{}...)