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# Run a first pass for finding the headers only,
# and establishing the Boost version.
set(_PAGMO_BOOST_MINIMUM_VERSION 1.68.0)
find_package(Boost ${_PAGMO_BOOST_MINIMUM_VERSION} QUIET REQUIRED CONFIG)
set(_PAGMO_REQUIRED_BOOST_LIBS serialization)
# Add the unit test framework, if needed.
if(_PAGMO_FIND_BOOST_UNIT_TEST_FRAMEWORK)
list(APPEND _PAGMO_REQUIRED_BOOST_LIBS unit_test_framework)
endif()
message(STATUS "Required Boost libraries: ${_PAGMO_REQUIRED_BOOST_LIBS}")
find_package(Boost ${_PAGMO_BOOST_MINIMUM_VERSION} REQUIRED CONFIG COMPONENTS ${_PAGMO_REQUIRED_BOOST_LIBS})
if(NOT Boost_FOUND)
message(FATAL_ERROR "Not all requested Boost components were found, exiting.")
endif()
message(STATUS "Detected Boost version: ${Boost_VERSION}")
message(STATUS "Boost include dirs: ${Boost_INCLUDE_DIRS}")
# Might need to recreate targets if they are missing (e.g., older CMake versions).
if(NOT TARGET Boost::boost)
message(STATUS "The 'Boost::boost' target is missing, creating it.")
add_library(Boost::boost INTERFACE IMPORTED)
set_target_properties(Boost::boost PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${Boost_INCLUDE_DIRS}")
endif()
if(NOT TARGET Boost::disable_autolinking)
message(STATUS "The 'Boost::disable_autolinking' target is missing, creating it.")
add_library(Boost::disable_autolinking INTERFACE IMPORTED)
if(WIN32)
set_target_properties(Boost::disable_autolinking PROPERTIES INTERFACE_COMPILE_DEFINITIONS "BOOST_ALL_NO_LIB")
endif()
endif()
foreach(_PAGMO_BOOST_COMPONENT ${_PAGMO_REQUIRED_BOOST_LIBS})
if(NOT TARGET Boost::${_PAGMO_BOOST_COMPONENT})
message(STATUS "The 'Boost::${_PAGMO_BOOST_COMPONENT}' imported target is missing, creating it.")
string(TOUPPER ${_PAGMO_BOOST_COMPONENT} _PAGMO_BOOST_UPPER_COMPONENT)
if(Boost_USE_STATIC_LIBS)
add_library(Boost::${_PAGMO_BOOST_COMPONENT} STATIC IMPORTED)
else()
add_library(Boost::${_PAGMO_BOOST_COMPONENT} UNKNOWN IMPORTED)
endif()
set_target_properties(Boost::${_PAGMO_BOOST_COMPONENT} PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${Boost_INCLUDE_DIRS}")
set_target_properties(Boost::${_PAGMO_BOOST_COMPONENT} PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
IMPORTED_LOCATION "${Boost_${_PAGMO_BOOST_UPPER_COMPONENT}_LIBRARY}")
endif()
endforeach()
unset(_PAGMO_BOOST_MINIMUM_VERSION)
unset(_PAGMO_REQUIRED_BOOST_LIBS)
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