# Copyright 2020 The Fuchsia Authors
#
# Use of this source code is governed by a MIT-style
# license that can be found in the LICENSE file or at
# https://opensource.org/licenses/MIT

import("//build/zircon/migrated_targets.gni")

zx_library("ktl") {
  kernel = true
  static = false

  sources = [ "dummy-new.cc" ]

  public_configs = [ ":ktl.config" ]

  deps = [ "//zircon/kernel/lib/libc" ]
}

config("ktl.config") {
  visibility = [
    ":*",

    # TODO(fxbug.dev/44971): Referenced in environment configs.
    "//build/config/fuchsia:*",
    "//build/config/sanitizers:*",
    "//zircon/kernel/*",
    "//zircon/system/ulib/*",
    "//zircon/third_party/lib/*",
    "//zircon/third_party/ulib/*",
  ]

  defines = [
    # This tells the headers not to use `extern template` declarations that
    # expect specific instantiations/specializations to come from the libc++
    # library rather than the headers.  In the kernel, only the headers are
    # ever going to be available.
    "_LIBCPP_DISABLE_EXTERN_TEMPLATE",

    # This tells <atomic> not to use threading APIs.
    "_LIBCPP_HAS_NO_PLATFORM_WAIT",

    # This tells <atomic> et al to use <__external_threading> instead
    # of expecting either POSIX or C11 threading APIs.
    "_LIBCPP_HAS_THREAD_API_EXTERNAL",
    "_LIBCPP_HAS_THREAD_LIBRARY_EXTERNAL",

    # Enable C++20 library APIs even in C++17.
    "_LIBCPP_STD_VER=20",
  ]
}