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# This program is distributed in the hope that it will be useful,
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License, version 2.0, for more details.
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SET(BOOST_PACKAGE_NAME "boost_1_85_0")

# Always use the bundled version.
SET(BOOST_SOURCE_DIR ${CMAKE_SOURCE_DIR}/extra/boost)

# Contains all header files we need.
# (All the directories that contain at least one needed file).
SET(BOOST_INCLUDE_DIR ${BOOST_SOURCE_DIR}/${BOOST_PACKAGE_NAME})

ADD_LIBRARY(boost INTERFACE)
ADD_LIBRARY(extra::boost ALIAS boost)

TARGET_INCLUDE_DIRECTORIES(boost SYSTEM BEFORE INTERFACE ${BOOST_INCLUDE_DIR})

IF(NOT WIN32)
  # See boost/container_hash/hash.hpp
  # We pretend that the compiler is pre-c++98, in order to hide the
  # usage of std::unary_function<..> (which was removed in C++17)
  # For windows: see boost/config/stdlib/dinkumware.hpp
  TARGET_COMPILE_DEFINITIONS(boost INTERFACE BOOST_NO_CXX98_FUNCTION_BASE)
ENDIF()

MESSAGE(STATUS "BOOST_INCLUDE_DIR ${BOOST_INCLUDE_DIR}")