boost 1.86 aix build error

[paladin-dalao]

aix version 7100-05

/usr/local/include/boost/process/v2/impl/pid.ipp:729:2: error: #error "Platform not supported"
 #error "Platform not supported"

/usr/local/include/boost/process/v2/ext/impl/exe.ipp:175:2: error: #error "Platform not supported"
 #error "Platform not supported"
  ^~~~~

/usr/local/include/boost/process/v2/impl/error.ipp: In member function 'virtual std::__cxx11::string boost::process::v2::error::detail::exit_code_category::message(int) const':
/usr/local/include/boost/process/v2/impl/error.ipp:112:21: error: duplicate case value
                     case SIGLOST: return "SIGLOST:   File lock lost (unused)";