void BuildConfiguration::updateCacheAndEmitEnvironmentChanged()
{
    Utils::Environment env = baseEnvironment();
    env.modify(userEnvironmentChanges());
    if (env == m_cachedEnvironment)
        return;
    m_cachedEnvironment = env;
    emit environmentChanged(); // might trigger buildDirectoryChanged signal!
}
void RemoteLinuxEnvironmentAspect::fromMap(const QVariantMap &map)
{
    ProjectExplorer::EnvironmentAspect::fromMap(map);

    const auto version = map.value(QLatin1String(VERSION_KEY), 0).toInt();
    if (version == 0) {
        // In Qt Creator versions prior to 4.3 RemoteLinux included DISPLAY=:0.0 in the base
        // environment, if DISPLAY was not set. In order to keep existing projects expecting
        // that working, add the DISPLAY setting to user changes in them. New projects will
        // have version 1 and will not get DISPLAY set.
        auto changes = userEnvironmentChanges();
        if (!displayAlreadySet(changes)) {
            changes.append(Utils::EnvironmentItem(QLatin1String(DISPLAY_KEY), QLatin1String(":0.0")));
            setUserEnvironmentChanges(changes);
        }
    }
}
LocalEnvironmentAspect *LocalEnvironmentAspect::create(RunConfiguration *parent) const
{
    auto result = new LocalEnvironmentAspect(parent, m_baseEnvironmentModifier);
    result->setUserEnvironmentChanges(userEnvironmentChanges());
    return result;
}