cmake FEELPP_HAS_BOOST examples

feelpp/feelpp feelpp/feel/CMakeLists.txt :141

target_compile_definitions(
    feelpp
    PUBLIC
    FEELPP_HAS_BOOST
    # result_of
    BOOST_RESULT_OF_USE_TR1=1
    # Boost::none
    BOOST_OPTIONAL_USE_OLD_DEFINITION_OF_NONE=1
    # Boost::ublas
    BOOST_UBLAS_SHALLOW_ARRAY_ADAPTOR=1
    # Boost::parameter
    BOOST_PARAMETER_MAX_ARITY=${BOOST_PARAMETER_MAX_ARITY}
    # Boost::filesystem
    BOOST_FILESYSTEM_VERSION=${BOOST_FILESYSTEM_VERSION}
    )