zsh/Completion/Base/_value

#compdef -value-

_value () {
  #_view_completion_parameters
  if (( $+functions[_value:$compstate[parameter]] )); then
    "_value:$compstate[parameter]" "$@"
  else
    _default
  fi
}

_value:CPPFLAGS () {
  compset -q
  if compset -P '-I'; then
    _files -/ "$@"
  else
    _default "$@"
  fi
}

_value:LDFLAGS () {
  compset -q
  if compset -P '-L'; then
    _files -/ "$@"
  elif compset -P '-R'; then
    compset -P '*:'
    _files -/ -S/ -r ' :' "$@"
  else
    _default "$@"
  fi
}