build_overrides/build.gni

# Copyright 2019 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# Set to false to build OpenScreen targets as a standalone library.
build_with_chromium = false

# Enables assertions on safety checks in libc++.
#
# This should be set to true whenever building with Chrome's custom libc++ in
# order to guard against undefined behavior. However, the asserts added by
# hardening libc++ may introduce some performance overhead, so this is
# configurable to simplify A/B tests, and to allow performance-sensitive
# projects embedding Chrome (e.g. ANGLE) to disable libc++ hardening.
#
# Note that setting this to true only has an effect when also building with
# `use_custom_libcxx = true`.
enable_safe_libcxx = true

declare_args() {
  # Allows googletest to pretty-print various absl types.  Disabled for nacl due
  # to lack of toolchain support.
  gtest_enable_absl_printers = true

  # Allow projects that wish to stay on C++17 to override Chromium's default.
  use_cxx17 = true
}

if (host_os == "mac" || is_apple) {
  # Needed for is_apple when targeting macOS or iOS, independent of host.
  # Needed for host_os=="mac" for running host tool such as gperf in blink
  # even when targeting e.g. Windows.
  declare_args() {
    # Use the system install of Xcode for tools like ibtool, libtool, etc.
    # This does not affect the compiler. When this variable is false, targets
    # will instead use a hermetic install of Xcode. [The hermetic install can
    # be obtained with gclient sync after setting the environment variable
    # FORCE_MAC_TOOLCHAIN for target_os mac only].
    use_system_xcode = true
  }

  assert(current_os != "ios" || use_system_xcode)
  assert(host_os == "mac" || !use_system_xcode)
}