third_party/picotls/BUILD.gn

# Copyright 2021 The Pigweed Authors
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.

import("//build_overrides/pigweed.gni")
import("$dir_pw_build/target_types.gni")

pw_source_set("picotls_lib_baremetal") {
  # The target uses boringssl for cryptography algorithms. Thus, only
  # sources for the picotls core are needed.
  sources = [
    "src/lib/openssl.c",
    "src/lib/picotls.c",
  ]

  # picotls.c include arpa/inet.h for inet_pton() API. It uses
  # it to test if the provided target host name is an ip address,
  # in which case it will decide not to send the SNI extension.
  # We don't use this feature thus we fake an empty header.
  # The SNI extension will always be sent.
  include_dirs = [ "./sysdeps_baremetal" ]
  public_configs = [ ":picotls_lib_config" ]
  public_deps = [ "//third_party/boringssl:crypto_lib_baremetal" ]
  configs = [ ":picotls_internal_config" ]
}

config("picotls_lib_config") {
  include_dirs = [ "src/include" ]
  cflags = [
    "-Wno-error=missing-field-initializers",
    "-Wno-error=undef",
  ]
}

config("picotls_internal_config") {
  cflags = [
    "-Wno-error=unused-parameter",
    "-Wno-error=sign-compare",
    "-Wno-error=implicit-function-declaration",
    "-Wno-error=int-conversion",
  ]
}