#include <qstd.h>#include <argumentlist.h>#include <QProcess>#include <cstdlib>class Fork : public QProcess {    public:    Fork(QStringList argv = QStringList() ) {        execute("environment", argv); /* Runs this same app as a        child. */    }    ~Fork() {        waitForFinished();    }};int main(int argc, char* argv[]) {    using namespace qstd;    ArgumentList al(argc, argv);        al.removeFirst();    bool fork=al.getSwitch("-f");    QStringList extraVars;    if (al.count()  > 0) {        setenv("PENGUIN", al.first().toAscii(), true);    }    cout << " HOME=" << getenv("HOME") << endl;    cout << " PWD=" << getenv("PWD") << endl;    cout << " PENGUIN=" << getenv ("PENGUIN") << endl;        if (fork) {        Fork f;       }}