$OpenBSD: patch-build_config_BUILDCONFIG_gn,v 1.7 2019/04/17 11:48:53 robert Exp $

Index: build/config/BUILDCONFIG.gn
--- build/config/BUILDCONFIG.gn.orig
+++ build/config/BUILDCONFIG.gn
@@ -131,10 +131,10 @@ declare_args() {
   is_official_build = false
 
   # Whether we're a traditional desktop unix.
-  is_desktop_linux = current_os == "linux"
+  is_desktop_linux = current_os == "linux" || current_os == "openbsd"
 
   # Set to true when compiling with the Clang compiler.
-  is_clang = current_os != "linux" ||
+  is_clang = current_os != "linux" || curent_os == "openbsd" ||
              (current_cpu != "s390x" && current_cpu != "s390" &&
               current_cpu != "ppc64" && current_cpu != "ppc" &&
               current_cpu != "mips" && current_cpu != "mips64")
@@ -213,6 +213,8 @@ if (host_toolchain == "") {
     }
   } else if (host_os == "aix") {
     host_toolchain = "//build/toolchain/aix:$host_cpu"
+  } else if (host_os == "openbsd") {
+    host_toolchain = "//build/toolchain/openbsd:clang_$host_cpu"
   } else {
     assert(false, "Unsupported host_os: $host_os")
   }
@@ -257,6 +259,8 @@ if (target_os == "android") {
   _default_toolchain = "//build/toolchain/win:uwp_$target_cpu"
 } else if (target_os == "aix") {
   _default_toolchain = "//build/toolchain/aix:$target_cpu"
+} else if (target_os == "openbsd") {
+  _default_toolchain = host_toolchain
 } else {
   assert(false, "Unsupported target_os: $target_os")
 }
@@ -291,7 +295,8 @@ is_android = current_os == "android"
 is_chromeos = current_os == "chromeos"
 is_fuchsia = current_os == "fuchsia"
 is_ios = current_os == "ios"
-is_linux = current_os == "chromeos" || current_os == "linux"
+is_linux = current_os == "chromeos" || current_os == "linux" || current_os == "openbsd"
+is_openbsd = current_os == "openbsd"
 is_mac = current_os == "mac"
 is_nacl = current_os == "nacl"
 is_win = current_os == "win" || current_os == "winuwp"
