diff --git a/src/backends/fake/kauth-policy-gen-polkit.cpp b/src/backends/fake/kauth-policy-gen-polkit.cpp
index 45b9ce0..728ae0f 100644
--- a/src/backends/fake/kauth-policy-gen-polkit.cpp
+++ b/src/backends/fake/kauth-policy-gen-polkit.cpp
@@ -1,82 +1,82 @@
 /*
 *   Copyright (C) 2008 Nicola Gigante <nicola.gigante@gmail.com>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as published by
 *   the Free Software Foundation; either version 2.1 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public License
 *   along with this program; if not, write to the
 *   Free Software Foundation, Inc.,
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA .
 */
 
 #include <auth/policy-gen/policy-gen.h>
 
 #include <cstdio>
 #include <QDebug>
 #include <QTextStream>
 
 const char header[] = ""
                       "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
                       "<!DOCTYPE policyconfig PUBLIC\n"
                       "\"-//freedesktop//DTD PolicyKit Policy Configuration 1.0//EN\"\n"
                       "\"http://www.freedesktop.org/standards/PolicyKit/1.0/policyconfig.dtd\">\n"
                       "<policyconfig>\n";
 
 const char policy_tag[] = ""
                           "      <defaults>\n"
                           "         <allow_inactive>no</allow_inactive>\n"
                           "         <allow_active>%1</allow_active>\n"
                           "      </defaults>\n";
 
 const char dent[] = "   ";
 
-void output(QList<Action> actions, const QMap<QString, QString> &domain)
+void output(const QList<Action> &actions, const QMap<QString, QString> &domain)
 {
     Q_UNUSED(domain)
 
     QTextStream out(stdout);
     out.setCodec("UTF-8");
 
     out << header;
 
     for (const Action &action : qAsConst(actions)) {
         out << dent << "<action id=\"" << action.name << "\" >\n";
 
         const auto lstKeys = action.descriptions.keys();
         for (const QString &lang : lstKeys) {
             out << dent << dent << "<description";
             if (lang != "en") {
                 out << " xml:lang=\"" << lang << '"';
             }
             out << '>' << action.messages.value(lang) << "</description>\n";
         }
 
         const auto lstMessagesKeys = action.messages.keys();
         for (const QString &lang : lstMessagesKeys) {
             out << dent << dent << "<message";
             if (lang != "en") {
                 out << " xml:lang=\"" << lang << '"';
             }
             out << '>' << action.descriptions.value(lang) << "</message>\n";
         }
 
         QString policy = action.policy;
         if (!action.persistence.isEmpty()) {
             policy += "_keep_" + action.persistence;
         }
 
         out << QString(policy_tag).arg(policy);
 
         out << dent << "</action>\n";
     }
 
     out << "</policyconfig>\n";
 }
diff --git a/src/backends/mac/kauth-policy-gen-mac.cpp b/src/backends/mac/kauth-policy-gen-mac.cpp
index fdd22cd..213d96b 100644
--- a/src/backends/mac/kauth-policy-gen-mac.cpp
+++ b/src/backends/mac/kauth-policy-gen-mac.cpp
@@ -1,66 +1,66 @@
 /*
 *   Copyright (C) 2008 Nicola Gigante <nicola.gigante@gmail.com>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as published by
 *   the Free Software Foundation; either version 2.1 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public License
 *   along with this program; if not, write to the
 *   Free Software Foundation, Inc.,
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA .
 */
 
 #include "../../policy-gen/policy-gen.h"
 
 #include <iostream>
 #include <Security/Security.h>
 
 #include <QDebug>
 
 using namespace std;
 
-void output(QList<Action> actions, const QMap<QString, QString> &domain)
+void output(const QList<Action> &actions, const QMap<QString, QString> &domain)
 {
     AuthorizationRef auth;
     AuthorizationCreate(NULL, kAuthorizationEmptyEnvironment, kAuthorizationFlagDefaults, &auth);
 
     OSStatus err;
 
     for (const Action &action : qAsConst(actions)) {
 
         err = AuthorizationRightGet(action.name.toLatin1().constData(), NULL);
 
         if (err != errAuthorizationSuccess) {
 
             QString rule;
 
             if (action.policy == QLatin1String("yes")) {
                 rule = QString::fromLatin1(kAuthorizationRuleClassAllow);
             } else if (action.policy == QLatin1String("no")) {
                 rule = QString::fromLatin1(kAuthorizationRuleClassDeny);
             } else if (action.policy == QLatin1String("auth_self")) {
                 rule = QString::fromLatin1(kAuthorizationRuleAuthenticateAsSessionUser);
             } else if (action.policy == QLatin1String("auth_admin")) {
                 rule = QString::fromLatin1(kAuthorizationRuleAuthenticateAsAdmin);
             }
 
             CFStringRef cfRule = CFStringCreateWithCString(NULL, rule.toLatin1().constData(), kCFStringEncodingASCII);
             CFStringRef cfPrompt = CFStringCreateWithCString(NULL, action.descriptions.value(QLatin1String("en")).toLatin1().constData(), kCFStringEncodingASCII);
 
             err = AuthorizationRightSet(auth, action.name.toLatin1().constData(), cfRule, cfPrompt, NULL, NULL);
             if (err != noErr) {
                 cerr << "You don't have the right to edit the security database (try to run cmake with sudo): " << err << endl;
                 exit(1);
             } else {
                 qInfo() << "Created or updated rule" << rule << "for right entry" << action.name << "policy" << action.policy << "; domain=" << domain;
             }
         }
     }
 }
diff --git a/src/backends/policykit/kauth-policy-gen-polkit.cpp b/src/backends/policykit/kauth-policy-gen-polkit.cpp
index 995d53d..84ee427 100644
--- a/src/backends/policykit/kauth-policy-gen-polkit.cpp
+++ b/src/backends/policykit/kauth-policy-gen-polkit.cpp
@@ -1,119 +1,119 @@
 /*
 *   Copyright (C) 2008 Nicola Gigante <nicola.gigante@gmail.com>
 *   Copyright (C) 2009-2010 Dario Freddi <drf@kde.org>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as published by
 *   the Free Software Foundation; either version 2.1 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public License
 *   along with this program; if not, write to the
 *   Free Software Foundation, Inc.,
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA .
 */
 
 #include <auth/policy-gen/policy-gen.h>
 
 #include <cstdio>
 #include <QDebug>
 #include <QTextStream>
 
 const char header[] = ""
                       "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
                       "<!DOCTYPE policyconfig PUBLIC\n"
                       "\"-//freedesktop//DTD PolicyKit Policy Configuration 1.0//EN\"\n"
                       "\"http://www.freedesktop.org/standards/PolicyKit/1.0/policyconfig.dtd\">\n"
                       "<policyconfig>\n";
 
 const char policy_tag[] = ""
                           "      <defaults>\n"
                           "         <allow_inactive>%1</allow_inactive>\n"
                           "         <allow_active>%2</allow_active>\n"
                           "      </defaults>\n";
 
 const char dent[] = "   ";
 
-void output(QList<Action> actions, const QMap<QString, QString> &domain)
+void output(const QList<Action> &actions, const QMap<QString, QString> &domain)
 {
     QTextStream out(stdout);
     out.setCodec("UTF-8");
 
     out << header;
 
     // Blacklisted characters + replacements
     QHash< QChar, QString > blacklist;
     blacklist.insert(QChar::fromLatin1('&'), QString::fromLatin1("&amp;"));
 
     if (domain.contains(QLatin1String("vendor"))) {
         QHash< QChar, QString >::const_iterator blI;
         QString vendor = domain[QLatin1String("vendor")];
         for (blI = blacklist.constBegin(); blI != blacklist.constEnd(); ++blI) {
             vendor.replace(blI.key(), blI.value());
         }
         out << "<vendor>" << vendor << "</vendor>\n";
     }
     if (domain.contains(QLatin1String("vendorurl"))) {
         out << "<vendor_url>" << domain[QLatin1String("vendorurl")] << "</vendor_url>\n";
     }
     if (domain.contains(QLatin1String("icon"))) {
         out << "<icon_name>" << domain[QLatin1String("icon")] << "</icon_name>\n";
     }
 
     for (const Action &action : qAsConst(actions)) {
         out << dent << "<action id=\"" << action.name << "\" >\n";
 
         for (QHash< QString, QString >::const_iterator i = action.messages.constBegin(); i != action.messages.constEnd(); ++i) {
             out << dent << dent << "<description";
             if (i.key() != QLatin1String("en")) {
                 out << " xml:lang=\"" << i.key() << '"';
             }
 
             QHash< QChar, QString >::const_iterator blI;
             QString description = i.value();
             for (blI = blacklist.constBegin(); blI != blacklist.constEnd(); ++blI) {
                 description.replace(blI.key(), blI.value());
             }
 
             out << '>' << description << "</description>\n";
         }
 
         for (QHash< QString, QString>::const_iterator i = action.descriptions.constBegin();
                 i != action.descriptions.constEnd();
                 ++i) {
             out << dent << dent << "<message";
             if (i.key() != QLatin1String("en")) {
                 out << " xml:lang=\"" << i.key() << '"';
             }
 
             QHash< QChar, QString >::const_iterator blI;
             QString message = i.value();
             for (blI = blacklist.constBegin(); blI != blacklist.constEnd(); ++blI) {
                 message.replace(blI.key(), blI.value());
             }
 
             out << '>' << message << "</message>\n";
         }
 
         QString policy = action.policy;
         QString policyInactive = action.policyInactive.isEmpty() ? QLatin1String("no") : action.policyInactive;
         if (!action.persistence.isEmpty() && policy != QLatin1String("yes") && policy != QLatin1String("no")) {
             policy += QLatin1String("_keep_") + action.persistence;
         }
         if (!action.persistence.isEmpty() && policyInactive != QLatin1String("yes") &&
                 policyInactive != QLatin1String("no")) {
             policyInactive += QLatin1String("_keep_") + action.persistence;
         }
 
         out << QString(QLatin1String(policy_tag)).arg(policyInactive).arg(policy);
 
         out << dent << "</action>\n";
     }
 
     out << "</policyconfig>\n";
 }