# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/config/ios/ios_sdk.gni")
import("//build/config/sysroot.gni")
import("//build/toolchain/toolchain.gni")

declare_args() {
  # Enabling this option makes clang compile to an intermediate
  # representation ("bitcode"), and not to native code. This is preferred
  # when including WebRTC in the apps that will be sent to Apple's App Store
  # and mandatory for the apps that run on watchOS or tvOS.
  # The option only works when building with Xcode (use_xcode_clang = true).
  # Mimicking how Xcode handles it, the production builds (is_debug = false)
  # get real bitcode sections added, while the debug builds (is_debug = true)
  # only get bitcode-section "markers" added in them.
  # NOTE: This option is ignored when building versions for the iOS simulator,
  # where a part of libvpx is compiled from the assembly code written using
  # Intel assembly syntax; Yasm / Nasm do not support emitting bitcode parts.
  # That is not a limitation for now as Xcode mandates the presence of bitcode
  # only when building bitcode-enabled projects for real devices (ARM CPUs).
  enable_ios_bitcode = false
}

# This is included by reference in the //build/config/compiler:runtime_library
# config that is applied to all targets. It is here to separate out the logic
# that is iOS-only. Please see that target for advice on what should go in
# :runtime_library vs. :compiler.
config("runtime_library") {
  common_flags = [
    "-isysroot",
    sysroot,

    "-stdlib=libc++",
  ]

  if (use_ios_simulator) {
    common_flags += [ "-mios-simulator-version-min=$ios_deployment_target" ]
  } else {
    common_flags += [ "-miphoneos-version-min=$ios_deployment_target" ]
  }

  if (use_xcode_clang && enable_ios_bitcode && !use_ios_simulator) {
    if (is_debug) {
      common_flags += [ "-fembed-bitcode-marker" ]
    } else {
      common_flags += [ "-fembed-bitcode" ]
    }
  }

  asmflags = common_flags
  cflags = common_flags
  ldflags = common_flags

  # TODO(crbug.com/634373): Remove once Xcode's libc++ has LLVM r256325. Most
  # likely this means one Xcode 8 is released and required.
  if (use_xcode_clang && get_path_info(ios_sdk_version, "name") != "10") {
    common_cc_flags = [
      "-isystem",
      rebase_path("//third_party/llvm-build/Release+Asserts/include/c++/v1",
                  root_build_dir),
    ]

    cflags_cc = common_cc_flags
    cflags_objcc = common_cc_flags
  }
}

config("ios_dynamic_flags") {
  ldflags = [ "-Wl,-ObjC" ]  # Always load Objective-C categories and class.
}

config("xctest_config") {
  common_flags = [
    "-F",
    "$ios_sdk_platform_path/Developer/Library/Frameworks",
  ]

  cflags = common_flags
  ldflags = common_flags

  libs = [
    "Foundation.framework",
    "XCTest.framework",
  ]
}

group("xctest") {
  public_configs = [ ":xctest_config" ]
}