unofficial.gni

# Copyright (c) 2013-2019 GitHub Inc.
# Copyright 2019 the V8 project authors. All rights reserved.
# Copyright 2023 Microsoft Inc.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# This file is used by GN for building, which is NOT the build system used for
# building official binaries.
# Please edit the gyp files if you are making changes to build system.

# The actual configurations are put inside a template in unofficial.gni to
# prevent accidental edits from contributors.
template("cares_gn_build") {
  config("cares_config") {
    include_dirs = [ "include" ]
    if (!is_component_build) {
      defines = [ "CARES_STATICLIB" ]
    }
  }

  gypi_values = exec_script("../../tools/gypi_to_gn.py",
                            [ rebase_path("cares.gyp") ],
                            "scope",
                            [ "cares.gyp" ])

  component(target_name) {
    forward_variables_from(invoker, "*")
    public_configs = [ ":cares_config" ]
    if (is_component_build) {
      defines = [ "CARES_BUILDING_LIBRARY" ]
    } else {
      defines = []
    }
    if (is_win) {
      defines += [ "CARES_PULL_WS2TCPIP_H=1" ]
    }
    if (is_posix) {
      defines += [
        "_DARWIN_USE_64_BIT_INODE=1",
        "_LARGEFILE_SOURCE",
        "_FILE_OFFSET_BITS=64",
        "_GNU_SOURCE",
        "HAVE_CONFIG_H",
      ]
    }

    include_dirs = [ "src/lib" ]
    if (is_win) {
      include_dirs += [ "config/win32" ]
    } else if (is_linux) {
      include_dirs += [ "config/linux" ]
    } else if (is_mac) {
      include_dirs += [ "config/darwin" ]
    }

    if (is_win) {
      libs = [
        "ws2_32.lib",
        "iphlpapi.lib",
      ]
    }

    sources = gypi_values.cares_sources_common
    if (is_win) {
      sources += gypi_values.cares_sources_win
    }
    if (is_linux) {
      sources += [ "config/linux/ares_config.h" ]
    }
    if (is_mac) {
      sources += [ "config/darwin/ares_config.h" ]
    }

    if (is_clang || !is_win) {
      cflags_c = [
        "-Wno-implicit-fallthrough",
        "-Wno-unreachable-code",
      ]
    }
  }
}