Method GetLinkInterfaceLibraries

Source/cmGeneratorTarget_Link.cxx:736–771

}

cmLinkInterfaceLibraries const* cmGeneratorTarget::GetLinkInterfaceLibraries(
  std::string const& config, cmGeneratorTarget const* head, UseTo usage) const
{
  // Imported targets have their own link interface.
  if (this->IsImported()) {
    return this->GetImportLinkInterface(config, head, usage);
  }

  // Link interfaces are not supported for executables that do not
  // export symbols.
  if (this->GetType() == cmStateEnums::EXECUTABLE &&
      !this->IsExecutableWithExports()) {
    return nullptr;
  }

  // Lookup any existing link interface for this configuration.
  cmHeadToLinkInterfaceMap& hm =
    (usage == UseTo::Compile
       ? this->GetHeadToLinkInterfaceUsageRequirementsMap(config)
       : this->GetHeadToLinkInterfaceMap(config));

  // If the link interface does not depend on the head target
  // then reuse the one from the head we computed first.
  if (!hm.empty() && !hm.begin()->second.HadHeadSensitiveCondition) {
    head = hm.begin()->first;
  }

  cmOptionalLinkInterface& iface = hm[head];
  MaybeEnableCheckLinkLibraries(iface);
  if (!iface.LibrariesDone) {
    iface.LibrariesDone = true;
    this->ComputeLinkInterfaceLibraries(config, iface, head, usage);
  }

  return iface.Exists ? &iface : nullptr;
}

void cmGeneratorTarget::ComputeLinkInterfaceLibraries(
  std::string const& config, cmOptionalLinkInterface& iface,