# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
#
# 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
#
# http://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.

include(ExternalProject)

set(BOOST_PROJECT "extern_boost")
# To release PaddlePaddle as a pip package, we have to follow the
# manylinux1 standard, which features as old Linux kernels and
# compilers as possible and recommends CentOS 5. Indeed, the earliest
# CentOS version that works with NVIDIA CUDA is CentOS 6.  And a new
# version of boost, say, 1.66.0, doesn't build on CentOS 6.  We
# checked that the devtools package of CentOS 6 installs boost 1.41.0.
# So we use 1.41.0 here.
set(BOOST_VER "1.41.0")
# boost_1_41_0_2021_10.tar.gz is almost the same with boost_1_41_0.tar.gz,
# except in visualc.hpp i comment a warning of "unknown compiler version",
# so if you need to change boost, you may need to block the warning similarly.
set(BOOST_TAR
    "boost_1_41_0_2021_10"
    CACHE STRING "" FORCE)
set(BOOST_URL
    "http://paddlepaddledeps.bj.bcebos.com/${BOOST_TAR}.tar.gz"
    CACHE STRING "" FORCE)

message(STATUS "BOOST_VERSION: ${BOOST_VER}, BOOST_URL: ${BOOST_URL}")

set(BOOST_PREFIX_DIR ${THIRD_PARTY_PATH}/boost)
set(BOOST_INCLUDE_DIR
    "${THIRD_PARTY_PATH}/boost/src/extern_boost"
    CACHE PATH "boost include directory." FORCE)
set_directory_properties(PROPERTIES CLEAN_NO_CUSTOM 1)
include_directories(${BOOST_INCLUDE_DIR})

if(WIN32 AND MSVC_VERSION GREATER_EQUAL 1600)
  add_definitions(-DBOOST_HAS_STATIC_ASSERT)
endif()

ExternalProject_Add(
  ${BOOST_PROJECT}
  ${EXTERNAL_PROJECT_LOG_ARGS}
  URL ${BOOST_URL}
  URL_MD5 51be7cc203628dc0848e97eee32d79e3
  PREFIX ${BOOST_PREFIX_DIR}
  DOWNLOAD_NO_PROGRESS 1
  CONFIGURE_COMMAND ""
  BUILD_COMMAND ""
  INSTALL_COMMAND ""
  UPDATE_COMMAND "")

add_library(boost INTERFACE)

add_dependencies(boost ${BOOST_PROJECT})
set(Boost_INCLUDE_DIR ${BOOST_INCLUDE_DIR})