message: [export.cpp] Define all valuse in BuildOptions
diff: @@ -70,8 +70,11 @@ namespace vcpkg::Export
  {
  static constexpr std::array<ExportPlanType, 2> ORDER = {ExportPlanType::ALREADY_BUILT,
  ExportPlanType::NOT_BUILT};
  - static constexpr Build::BuildPackageOptions build_options = {Build::UseHeadVersion::NO,
  - Build::AllowDownloads::YES};
  + static constexpr Build::BuildPackageOptions BUILD_OPTIONS = {Build::UseHeadVersion::NO,
  + Build::AllowDownloads::YES,
  + Build::CleanBuildtrees::NO,
  + Build::CleanPackages::NO,
  + Build::DownloadTool::BUILT_IN};
  for (const ExportPlanType plan_type : ORDER)
  {
  @@ -84,7 +87,7 @@ namespace vcpkg::Export
  std::vector<const ExportPlanAction*> cont = it->second;
  std::sort(cont.begin(), cont.end(), &ExportPlanAction::compare_by_name);
  const std::string as_string = Strings::join("\n", cont, [](const ExportPlanAction* p) {
  - return Dependencies::to_output_string(p->request_type, p->spec.to_string(), build_options);
  + return Dependencies::to_output_string(p->request_type, p->spec.to_string(), BUILD_OPTIONS);
  });
  switch (plan_type)
  