$OpenBSD: patch-build_config_c++_c++_gni,v 1.8 2021/04/16 18:15:05 robert Exp $

Index: build/config/c++/c++.gni
--- build/config/c++/c++.gni.orig
+++ build/config/c++/c++.gni
@@ -13,7 +13,7 @@ declare_args() {
   # is not supported.
   use_custom_libcxx = is_fuchsia || is_android || is_mac ||
                       (is_ios && !use_xcode_clang) || (is_win && is_clang) ||
-                      ((is_linux || is_chromeos) &&
+                      (((is_linux && !is_openbsd) || is_chromeos) &&
                        (!is_chromeos_ash ||
                         default_toolchain != "//build/toolchain/cros:target"))
 
