build_overrides/build.gni

# Copyright 2022 The Dawn & Tint Authors
#
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#    this list of conditions and the following disclaimer in the documentation
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declare_args() {
  # Tell Dawn and dependencies to not do Chromium-specific things
  build_with_chromium = false

  # In standalone Dawn builds, don't try to use the hermetic install of Xcode
  # that Chromium uses
  use_system_xcode = ""

  # Android 32-bit non-component, non-clang builds cannot have symbol_level=2
  # due to 4GiB file size limit, see https://crbug.com/648948.
  ignore_elf32_limitations = false
}

# Enables assertions on safety checks in libc++.
enable_safe_libcxx = true

# Detect whether we can use the hermetic XCode like in Chromium and do so if
# possible.
if (host_os == "mac" && use_system_xcode == "") {
  _result = exec_script("//build/mac/should_use_hermetic_xcode.py",
                        [ target_os ],
                        "value")

  assert(_result != 2,
         "Do not allow building targets with the default" +
             "hermetic toolchain if the minimum OS version is not met.")
  assert(_result != 3,
         "iOS does not support building with a hermetic toolchain. " +
             "Please install Xcode.")

  use_system_xcode = _result != 1
}