diff --git a/cc/compiler.go b/cc/compiler.go
index a751754..f9f7b6f 100644
--- a/cc/compiler.go
+++ b/cc/compiler.go
@@ -441,24 +441,12 @@
 	// TODO: debug
 	flags.Local.CFlags = append(flags.Local.CFlags, esc(compiler.Properties.Release.Cflags)...)
 
-	if !ctx.DeviceConfig().BuildBrokenClangCFlags() && len(compiler.Properties.Clang_cflags) != 0 {
-		ctx.PropertyErrorf("clang_cflags", "property is deprecated, see Changes.md file")
-	} else {
-		CheckBadCompilerFlags(ctx, "clang_cflags", compiler.Properties.Clang_cflags)
-	}
-	if !ctx.DeviceConfig().BuildBrokenClangAsFlags() && len(compiler.Properties.Clang_asflags) != 0 {
-		ctx.PropertyErrorf("clang_asflags", "property is deprecated, see Changes.md file")
-	} else {
-		CheckBadCompilerFlags(ctx, "clang_asflags", compiler.Properties.Clang_asflags)
-	}
+	CheckBadCompilerFlags(ctx, "clang_cflags", compiler.Properties.Clang_cflags)
+	CheckBadCompilerFlags(ctx, "clang_asflags", compiler.Properties.Clang_asflags)
 
 	flags.Local.CFlags = config.ClangFilterUnknownCflags(flags.Local.CFlags)
-	if !ctx.DeviceConfig().BuildBrokenClangCFlags() {
-		flags.Local.CFlags = append(flags.Local.CFlags, esc(compiler.Properties.Clang_cflags)...)
-	}
-	if !ctx.DeviceConfig().BuildBrokenClangAsFlags() {
-		flags.Local.AsFlags = append(flags.Local.AsFlags, esc(compiler.Properties.Clang_asflags)...)
-	}
+	flags.Local.CFlags = append(flags.Local.CFlags, esc(compiler.Properties.Clang_cflags)...)
+	flags.Local.AsFlags = append(flags.Local.AsFlags, esc(compiler.Properties.Clang_asflags)...)
 	flags.Local.CppFlags = config.ClangFilterUnknownCflags(flags.Local.CppFlags)
 	flags.Local.ConlyFlags = config.ClangFilterUnknownCflags(flags.Local.ConlyFlags)
 	flags.Local.LdFlags = config.ClangFilterUnknownCflags(flags.Local.LdFlags)