Function ImportPackage

Source/cmCMakePkgConfigCommand.cxx:554–596

}

cm::optional<cmPkgConfigResult> ImportPackage(
  std::string const& package, cm::optional<std::string> version,
  ImportEnv& imEnv, cmPkgConfigEnv& pcEnv)
{
  auto result = ReadPackage(package, imEnv, pcEnv);

  if (!result) {
    if (!imEnv.err) {
      warn_or_error(cmStrCat("Could not find pkg-config: '", package, '\''),
                    imEnv);
    }
    return result;
  }

  if (imEnv.exact) {
    std::string ver;

    if (version) {
      ver = cmPkgConfigResolver::ParseVersion(*version).Version;
    }

    if (ver != result->Version()) {
      warn_or_error(
        cmStrCat("Package '", package, "' version '", result->Version(),
                 "' does not meet exact version requirement '", ver, '\''),
        imEnv);
      return {};
    }

  } else if (version) {
    auto rv = cmPkgConfigResolver::ParseVersion(*version);
    if (!cmPkgConfigResolver::CheckVersion(rv, result->Version())) {
      warn_or_error(
        cmStrCat("Package '", package, "' version '", result->Version(),
                 "' does not meet version requirement '", *version, '\''),
        imEnv);
      return {};
    }
  }

  result->env = &pcEnv;
  return result;
}

struct pkgStackEntry
{