nixpkgs/pkgs/development/libraries/herqq/gcc6.patch

diff --git c/herqq/apps/simple_avtest-app/mediamanager_dialog.cpp i/herqq/apps/simple_avtest-app/mediamanager_dialog.cpp
index c4d2ebe..707dbdb 100644
--- c/herqq/apps/simple_avtest-app/mediamanager_dialog.cpp
+++ i/herqq/apps/simple_avtest-app/mediamanager_dialog.cpp
@@ -306,7 +306,7 @@ void MediaManagerDialog::avTransportStateChanged(
 {
     foreach(const HAvtLastChangeInfo& info, infos)
     {
-        if (info.propertyName().compare("TransportState", Qt::CaseInsensitive) == 0)
+        if (info.propertyName().compare(QString("TransportState"), Qt::CaseInsensitive) == 0)
         {
             HTransportState state(info.value().toString());
             if (state.isValid())
diff --git c/herqq/hupnp/src/dataelements/hproduct_tokens.cpp i/herqq/hupnp/src/dataelements/hproduct_tokens.cpp
index 40f9fda..6739a58 100644
--- c/herqq/hupnp/src/dataelements/hproduct_tokens.cpp
+++ i/herqq/hupnp/src/dataelements/hproduct_tokens.cpp
@@ -99,7 +99,7 @@ bool HProductToken::isValidUpnpToken() const
 {
     QString vrs = version();
 
-    return (m_token.compare("upnp", Qt::CaseInsensitive) == 0) &&
+    return (m_token.compare(QString("upnp"), Qt::CaseInsensitive) == 0) &&
            (vrs.size() == 3    &&
            (vrs[0]     == '1') &&
             vrs[1]     == '.'  &&
@@ -110,7 +110,7 @@ bool HProductToken::isValidDlnaDocToken() const
 {
     QString vrs = version();
 
-    bool b = m_token.compare("DLNADOC", Qt::CaseInsensitive) == 0 &&
+    bool b = m_token.compare(QString("DLNADOC"), Qt::CaseInsensitive) == 0 &&
              vrs.size() >= 3 &&
              vrs[0] == '1' &&
              vrs[1] == '.';
diff --git c/herqq/hupnp/src/dataelements/hresourcetype.cpp i/herqq/hupnp/src/dataelements/hresourcetype.cpp
index 8ed2492..94ab1e0 100644
--- c/herqq/hupnp/src/dataelements/hresourcetype.cpp
+++ i/herqq/hupnp/src/dataelements/hresourcetype.cpp
@@ -56,7 +56,7 @@ HResourceType::HResourceType(const QString& resourceTypeAsStr) :
     {
         return;
     }
-    if (tmp[1].compare("schemas-upnp-org") != 0)
+    if (tmp[1].compare(QString("schemas-upnp-org")) != 0)
     {
         flags = 0x01;
         tmp[1] = tmp[1].replace('.', '-');
@@ -67,11 +67,11 @@ HResourceType::HResourceType(const QString& resourceTypeAsStr) :
     }
 
     tmp[2] = tmp[2].simplified();
-    if (tmp[2].compare("device") == 0)
+    if (tmp[2].compare(QString("device")) == 0)
     {
         flags |= 0x04;
     }
-    else if (tmp[2].compare("service") == 0)
+    else if (tmp[2].compare(QString("service")) == 0)
     {
         flags |= 0x08;
     }
diff --git c/herqq/hupnp/src/dataelements/hserviceid.cpp i/herqq/hupnp/src/dataelements/hserviceid.cpp
index 9b0fad6..11a8640 100644
--- c/herqq/hupnp/src/dataelements/hserviceid.cpp
+++ i/herqq/hupnp/src/dataelements/hserviceid.cpp
@@ -64,7 +64,7 @@ public:
             return;
         }
 
-        if (tmp[0].compare("urn", Qt::CaseInsensitive) != 0)
+        if (tmp[0].compare(QString("urn"), Qt::CaseInsensitive) != 0)
         {
             HLOG_WARN_NONSTD(
                 QString("Invalid service identifier [%1]").arg(arg));
@@ -72,7 +72,7 @@ public:
             return;
         }
 
-        if (tmp[1].compare("upnp-org", Qt::CaseInsensitive) != 0)
+        if (tmp[1].compare(QString("upnp-org"), Qt::CaseInsensitive) != 0)
         {
             tmp[1] = tmp[1].replace('.', '-');
             if (tmp[1].isEmpty())
@@ -85,7 +85,7 @@ public:
         }
 
         bool warned = false;
-        if (tmp[2].compare("serviceId", Qt::CaseInsensitive) != 0)
+        if (tmp[2].compare(QString("serviceId"), Qt::CaseInsensitive) != 0)
         {
             HLOG_WARN_NONSTD(QString("Invalid service identifier [%1]").arg(arg));
             warned = true;
diff --git c/herqq/hupnp/src/devicehosting/hddoc_parser_p.cpp i/herqq/hupnp/src/devicehosting/hddoc_parser_p.cpp
index b3a58fa..d1853e1 100644
--- c/herqq/hupnp/src/devicehosting/hddoc_parser_p.cpp
+++ i/herqq/hupnp/src/devicehosting/hddoc_parser_p.cpp
@@ -195,7 +195,7 @@ bool HDocParser::parseActionArguments(
         }
 
         HActionArgument createdArg;
-        if (dirStr.compare("out", Qt::CaseInsensitive) == 0)
+        if (dirStr.compare(QString("out"), Qt::CaseInsensitive) == 0)
         {
             if (retValWasDefined)
             {
@@ -228,7 +228,7 @@ bool HDocParser::parseActionArguments(
 
             outArgs->push_back(createdArg);
         }
-        else if (dirStr.compare("in", Qt::CaseInsensitive) == 0)
+        else if (dirStr.compare(QString("in"), Qt::CaseInsensitive) == 0)
         {
             if (firstOutArgFound)
             {
@@ -677,11 +677,11 @@ bool HDocParser::parseStateVariable(
 
     QString strSendEvents = stateVariableElement.attribute("sendEvents", "no");
     bool bSendEvents      = false;
-    if (strSendEvents.compare("yes", Qt::CaseInsensitive) == 0)
+    if (strSendEvents.compare(QString("yes"), Qt::CaseInsensitive) == 0)
     {
         bSendEvents = true;
     }
-    else if (strSendEvents.compare("no", Qt::CaseInsensitive) != 0)
+    else if (strSendEvents.compare(QString("no"), Qt::CaseInsensitive) != 0)
     {
         m_lastError = InvalidServiceDescriptionError;
         m_lastErrorDescription = QString(
@@ -694,11 +694,11 @@ bool HDocParser::parseStateVariable(
 
     QString strMulticast  = stateVariableElement.attribute("multicast", "no");
     bool bMulticast       = false;
-    if (strMulticast.compare("yes", Qt::CaseInsensitive) == 0)
+    if (strMulticast.compare(QString("yes"), Qt::CaseInsensitive) == 0)
     {
         bMulticast = true;
     }
-    else if (strMulticast.compare("no", Qt::CaseInsensitive) != 0)
+    else if (strMulticast.compare(QString("no"), Qt::CaseInsensitive) != 0)
     {
         m_lastError = InvalidServiceDescriptionError;
         m_lastErrorDescription = QString(
diff --git c/herqq/hupnp/src/devicehosting/messages/hevent_messages_p.cpp i/herqq/hupnp/src/devicehosting/messages/hevent_messages_p.cpp
index 2e375a0..2d6a8cc 100644
--- c/herqq/hupnp/src/devicehosting/messages/hevent_messages_p.cpp
+++ i/herqq/hupnp/src/devicehosting/messages/hevent_messages_p.cpp
@@ -197,7 +197,7 @@ HSubscribeRequest::RetVal HSubscribeRequest::setContents(
 
     // this appears to be an initial subscription
 
-    if (nt.simplified().compare("upnp:event", Qt::CaseInsensitive) != 0)
+    if (nt.simplified().compare(QString("upnp:event"), Qt::CaseInsensitive) != 0)
     {
         return PreConditionFailed;
     }
diff --git c/herqq/hupnp/src/devicehosting/messages/hnt_p.cpp i/herqq/hupnp/src/devicehosting/messages/hnt_p.cpp
index aacdfcf..b618ba7 100644
--- c/herqq/hupnp/src/devicehosting/messages/hnt_p.cpp
+++ i/herqq/hupnp/src/devicehosting/messages/hnt_p.cpp
@@ -37,7 +37,7 @@ HNt::HNt(const QString& type) :
     m_typeValue(qMakePair(Type_Undefined, QString(""))),
     m_subTypeValue(qMakePair(SubType_Undefined, QString("")))
 {
-    if (type.compare("upnp:event", Qt::CaseInsensitive) == 0)
+    if (type.compare(QString("upnp:event"), Qt::CaseInsensitive) == 0)
     {
         m_typeValue.first  = Type_UpnpEvent;
         m_typeValue.second = "upnp:event";
@@ -48,13 +48,13 @@ HNt::HNt(const QString& type, const QString& subtype) :
     m_typeValue(qMakePair(Type_Undefined, QString(""))),
     m_subTypeValue(qMakePair(SubType_Undefined, QString("")))
 {
-    if (type.compare("upnp:event", Qt::CaseInsensitive) == 0)
+    if (type.compare(QString("upnp:event"), Qt::CaseInsensitive) == 0)
     {
         m_typeValue.first  = Type_UpnpEvent;
         m_typeValue.second = "upnp:event";
     }
 
-    if (subtype.compare("upnp:propchange", Qt::CaseInsensitive) == 0)
+    if (subtype.compare(QString("upnp:propchange"), Qt::CaseInsensitive) == 0)
     {
         m_subTypeValue.first  = SubType_UpnpPropChange;
         m_subTypeValue.second = "upnp:propchange";
diff --git c/herqq/hupnp/src/devicehosting/messages/htimeout_p.cpp i/herqq/hupnp/src/devicehosting/messages/htimeout_p.cpp
index 0faf7f4..addbaaf 100644
--- c/herqq/hupnp/src/devicehosting/messages/htimeout_p.cpp
+++ i/herqq/hupnp/src/devicehosting/messages/htimeout_p.cpp
@@ -43,7 +43,7 @@ HTimeout::HTimeout(const QString& timeout) :
     m_value(-1)
 {
     QString tmp(timeout.simplified());
-    if (tmp.compare("infinite", Qt::CaseInsensitive) != 0)
+    if (tmp.compare(QString("infinite"), Qt::CaseInsensitive) != 0)
     {
         if (tmp.startsWith("Second-", Qt::CaseInsensitive))
         {
diff --git c/herqq/hupnp/src/general/hupnp_datatypes.cpp i/herqq/hupnp/src/general/hupnp_datatypes.cpp
index 9f2084f..ae8e9ae 100644
--- c/herqq/hupnp/src/general/hupnp_datatypes.cpp
+++ i/herqq/hupnp/src/general/hupnp_datatypes.cpp
@@ -424,15 +424,15 @@ QVariant HUpnpDataTypes::convertToRightVariantType(
 
     case HUpnpDataTypes::boolean:
     {
-        if (value.compare("true", Qt::CaseInsensitive) == 0 ||
-            value.compare("yes", Qt::CaseInsensitive) == 0 ||
-            value.compare("1") == 0)
+        if (value.compare(QString("true"), Qt::CaseInsensitive) == 0 ||
+            value.compare(QString("yes"), Qt::CaseInsensitive) == 0 ||
+            value.compare(QString("1")) == 0)
         {
             retVal = true;
         }
-        else if (value.compare("false", Qt::CaseInsensitive) == 0 ||
-            value.compare("no", Qt::CaseInsensitive) == 0 ||
-            value.compare("0") == 0)
+        else if (value.compare(QString("false"), Qt::CaseInsensitive) == 0 ||
+            value.compare(QString("no"), Qt::CaseInsensitive) == 0 ||
+            value.compare(QString("0")) == 0)
         {
             retVal = false;
         }
diff --git c/herqq/hupnp/src/http/hhttp_server_p.cpp i/herqq/hupnp/src/http/hhttp_server_p.cpp
index eb1a56c..42e93ca 100644
--- c/herqq/hupnp/src/http/hhttp_server_p.cpp
+++ i/herqq/hupnp/src/http/hhttp_server_p.cpp
@@ -121,27 +121,27 @@ void HHttpServer::processRequest(HHttpAsyncOperation* op)
     mi->setKeepAlive(HHttpUtils::keepAlive(*hdr));
 
     QString method = hdr->method();
-    if (method.compare("GET", Qt::CaseInsensitive) == 0)
+    if (method.compare(QString("GET"), Qt::CaseInsensitive) == 0)
     {
         processGet(op->takeMessagingInfo(), *hdr);
     }
-    else if (method.compare("HEAD"), Qt::CaseInsensitive)
+    else if (method.compare(QString("HEAD")), Qt::CaseInsensitive)
     {
         processHead(op->takeMessagingInfo(), *hdr);
     }
-    else if (method.compare("POST", Qt::CaseInsensitive) == 0)
+    else if (method.compare(QString("POST"), Qt::CaseInsensitive) == 0)
     {
         processPost(op->takeMessagingInfo(), *hdr, op->dataRead());
     }
-    else if (method.compare("NOTIFY", Qt::CaseInsensitive) == 0)
+    else if (method.compare(QString("NOTIFY"), Qt::CaseInsensitive) == 0)
     {
         processNotifyMessage(op->takeMessagingInfo(), *hdr, op->dataRead());
     }
-    else if (method.compare("SUBSCRIBE", Qt::CaseInsensitive) == 0)
+    else if (method.compare(QString("SUBSCRIBE"), Qt::CaseInsensitive) == 0)
     {
         processSubscription(op->takeMessagingInfo(), *hdr);
     }
-    else if (method.compare("UNSUBSCRIBE", Qt::CaseInsensitive) == 0)
+    else if (method.compare(QString("UNSUBSCRIBE"), Qt::CaseInsensitive) == 0)
     {
         processUnsubscription(op->takeMessagingInfo(), *hdr);
     }
diff --git c/herqq/hupnp/src/http/hhttp_utils_p.h i/herqq/hupnp/src/http/hhttp_utils_p.h
index 7285190..b3ee62e 100644
--- c/herqq/hupnp/src/http/hhttp_utils_p.h
+++ i/herqq/hupnp/src/http/hhttp_utils_p.h
@@ -64,10 +64,10 @@ public:
         QString connection = hdr.value("CONNECTION");
         if (hdr.minorVersion() == 1)
         {
-            return connection.compare("close", Qt::CaseInsensitive) != 0;
+            return connection.compare(QString("close"), Qt::CaseInsensitive) != 0;
         }
 
-        return connection.compare("Keep-Alive", Qt::CaseInsensitive) == 0;
+        return connection.compare(QString("Keep-Alive"), Qt::CaseInsensitive) == 0;
     }
 
     // returns the URLs as a string inside brackets. This is the format used in
diff --git c/herqq/hupnp/src/utils/hmisc_utils_p.cpp i/herqq/hupnp/src/utils/hmisc_utils_p.cpp
index 6641d14..7ea567a 100644
--- c/herqq/hupnp/src/utils/hmisc_utils_p.cpp
+++ i/herqq/hupnp/src/utils/hmisc_utils_p.cpp
@@ -70,10 +70,10 @@ bool toBool(const QString& arg, bool* ok)
     bool retVal = false, match = true;
     if (arg == "1") { retVal = true; }
     else if (arg == "0") { retVal = false; }
-    else if (arg.compare("true", Qt::CaseInsensitive) == 0) { retVal = true; }
-    else if (arg.compare("false", Qt::CaseInsensitive) == 0) { retVal =  false; }
-    else if (arg.compare("yes", Qt::CaseInsensitive) == 0) { retVal = true; }
-    else if (arg.compare("no", Qt::CaseInsensitive) == 0) { retVal = false; }
+    else if (arg.compare(QString("true"), Qt::CaseInsensitive) == 0) { retVal = true; }
+    else if (arg.compare(QString("false"), Qt::CaseInsensitive) == 0) { retVal =  false; }
+    else if (arg.compare(QString("yes"), Qt::CaseInsensitive) == 0) { retVal = true; }
+    else if (arg.compare(QString("no"), Qt::CaseInsensitive) == 0) { retVal = false; }
     else { match = false; }
 
     if (ok) { *ok = match; }
diff --git c/herqq/hupnp_av/src/cds_model/cds_objects/hobject.cpp i/herqq/hupnp_av/src/cds_model/cds_objects/hobject.cpp
index 6531929..8bd05c5 100644
--- c/herqq/hupnp_av/src/cds_model/cds_objects/hobject.cpp
+++ i/herqq/hupnp_av/src/cds_model/cds_objects/hobject.cpp
@@ -680,15 +680,15 @@ QString HObject::writeStatusToString(WriteStatus status)
 HObject::WriteStatus HObject::writeStatusFromString(const QString& status)
 {
     WriteStatus retVal = UnknownWriteStatus;
-    if (status.compare("writable", Qt::CaseInsensitive) == 0)
+    if (status.compare(QString("writable"), Qt::CaseInsensitive) == 0)
     {
         retVal = WritableWriteStatus;
     }
-    else if (status.compare("protected", Qt::CaseInsensitive) == 0)
+    else if (status.compare(QString("protected"), Qt::CaseInsensitive) == 0)
     {
         retVal = ProtectedWriteStatus;
     }
-    else if (status.compare("mixed", Qt::CaseInsensitive) == 0)
+    else if (status.compare(QString("mixed"), Qt::CaseInsensitive) == 0)
     {
         retVal = MixedWriteStatus;
     }
diff --git c/herqq/hupnp_av/src/cds_model/hmatching_id.cpp i/herqq/hupnp_av/src/cds_model/hmatching_id.cpp
index 25ee560..bea6ece 100644
--- c/herqq/hupnp_av/src/cds_model/hmatching_id.cpp
+++ i/herqq/hupnp_av/src/cds_model/hmatching_id.cpp
@@ -77,11 +77,11 @@ QString HMatchingId::toString(Type type)
 HMatchingId::Type HMatchingId::fromString(const QString& type)
 {
     Type retVal = Undefined;
-    if (type.compare("SI_SERIESID", Qt::CaseInsensitive) == 0)
+    if (type.compare(QString("SI_SERIESID"), Qt::CaseInsensitive) == 0)
     {
         retVal = SeriesId;
     }
-    else if (type.compare("SI_PROGRAMID", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("SI_PROGRAMID"), Qt::CaseInsensitive) == 0)
     {
         retVal = ProgramId;
     }
diff --git c/herqq/hupnp_av/src/cds_model/hscheduledtime.cpp i/herqq/hupnp_av/src/cds_model/hscheduledtime.cpp
index 06ab6bf..e7cec20 100644
--- c/herqq/hupnp_av/src/cds_model/hscheduledtime.cpp
+++ i/herqq/hupnp_av/src/cds_model/hscheduledtime.cpp
@@ -108,11 +108,11 @@ QString HScheduledTime::toString(Type type)
 HScheduledTime::Type HScheduledTime::fromString(const QString& type)
 {
     Type retVal = Undefined;
-    if (type.compare("SCHEDULED_PROGRAM", Qt::CaseInsensitive) == 0)
+    if (type.compare(QString("SCHEDULED_PROGRAM"), Qt::CaseInsensitive) == 0)
     {
         retVal = ScheduledProgram;
     }
-    else if (type.compare("ON_DEMAND", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("ON_DEMAND"), Qt::CaseInsensitive) == 0)
     {
         retVal = OnDemand;
     }
diff --git c/herqq/hupnp_av/src/cds_model/hsortinfo.cpp i/herqq/hupnp_av/src/cds_model/hsortinfo.cpp
index 078d719..31e1af0 100644
--- c/herqq/hupnp_av/src/cds_model/hsortinfo.cpp
+++ i/herqq/hupnp_av/src/cds_model/hsortinfo.cpp
@@ -115,19 +115,19 @@ QString HSortModifier::toString(Type type)
 HSortModifier::Type HSortModifier::fromString(const QString& type)
 {
     Type retVal = Undefined;
-    if (type.compare("+", Qt::CaseInsensitive) == 0)
+    if (type.compare(QString("+"), Qt::CaseInsensitive) == 0)
     {
         retVal = AscendingByValue;
     }
-    else if (type.compare("-", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("-"), Qt::CaseInsensitive) == 0)
     {
         retVal = DescendingByValue;
     }
-    else if (type.compare("TIME+", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("TIME+"), Qt::CaseInsensitive) == 0)
     {
         retVal = AscendingByTime;
     }
-    else if (type.compare("TIME-", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("TIME-"), Qt::CaseInsensitive) == 0)
     {
         retVal = DescendingByTime;
     }
diff --git c/herqq/hupnp_av/src/cds_model/hstatevariablecollection.cpp i/herqq/hupnp_av/src/cds_model/hstatevariablecollection.cpp
index 65b67f8..f51e6b2 100644
--- c/herqq/hupnp_av/src/cds_model/hstatevariablecollection.cpp
+++ i/herqq/hupnp_av/src/cds_model/hstatevariablecollection.cpp
@@ -198,11 +198,11 @@ HStateVariableCollection::RcsInstanceType HStateVariableCollection::fromString(
     const QString& type)
 {
     RcsInstanceType retVal = Undefined;
-    if (type.compare("pre-mix", Qt::CaseInsensitive) == 0)
+    if (type.compare(QString("pre-mix"), Qt::CaseInsensitive) == 0)
     {
         retVal = PreMix;
     }
-    else if (type.compare("post-mix", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("post-mix"), Qt::CaseInsensitive) == 0)
     {
         retVal = PostMix;
     }
diff --git c/herqq/hupnp_av/src/cds_model/model_mgmt/hcds_dlite_serializer.cpp i/herqq/hupnp_av/src/cds_model/model_mgmt/hcds_dlite_serializer.cpp
index 9f5712d..cd4dacb 100644
--- c/herqq/hupnp_av/src/cds_model/model_mgmt/hcds_dlite_serializer.cpp
+++ i/herqq/hupnp_av/src/cds_model/model_mgmt/hcds_dlite_serializer.cpp
@@ -568,7 +568,7 @@ bool HCdsDidlLiteSerializer::serializeFromXml(
         addNamespaces(reader);
         if (reader.readNextStartElement())
         {
-            if (reader.name().compare("DIDL-Lite", Qt::CaseInsensitive) != 0)
+            if (reader.name().compare(QString("DIDL-Lite"), Qt::CaseInsensitive) != 0)
             {
                 h_ptr->m_lastErrorDescription = "Missing mandatory DIDL-Lite element";
                 return false;
diff --git c/herqq/hupnp_av/src/cds_model/model_mgmt/hcdsproperty_db.cpp i/herqq/hupnp_av/src/cds_model/model_mgmt/hcdsproperty_db.cpp
index 30af243..af03c5c 100644
--- c/herqq/hupnp_av/src/cds_model/model_mgmt/hcdsproperty_db.cpp
+++ i/herqq/hupnp_av/src/cds_model/model_mgmt/hcdsproperty_db.cpp
@@ -749,7 +749,7 @@ bool HCdsPropertyDbPrivate::serializeSvCollectionIn(
 
     if (stateVariableReader.readNextStartElement())
     {
-        if (stateVariableReader.name().compare("stateVariableValuePairs", Qt::CaseInsensitive) != 0)
+        if (stateVariableReader.name().compare(QString("stateVariableValuePairs"), Qt::CaseInsensitive) != 0)
         {
             return false;
         }
diff --git c/herqq/hupnp_av/src/common/hradioband.cpp i/herqq/hupnp_av/src/common/hradioband.cpp
index d35a559..85b7e32 100644
--- c/herqq/hupnp_av/src/common/hradioband.cpp
+++ i/herqq/hupnp_av/src/common/hradioband.cpp
@@ -83,23 +83,23 @@ QString HRadioBand::toString(Type type)
 HRadioBand::Type HRadioBand::fromString(const QString& arg)
 {
     Type retVal = Undefined;
-    if (arg.compare("am", Qt::CaseInsensitive) == 0)
+    if (arg.compare(QString("am"), Qt::CaseInsensitive) == 0)
     {
         retVal = AM;
     }
-    else if (arg.compare("fm", Qt::CaseInsensitive) == 0)
+    else if (arg.compare(QString("fm"), Qt::CaseInsensitive) == 0)
     {
         retVal = FM;
     }
-    else if (arg.compare("shortwave", Qt::CaseInsensitive) == 0)
+    else if (arg.compare(QString("shortwave"), Qt::CaseInsensitive) == 0)
     {
         retVal = ShortWave;
     }
-    else if (arg.compare("internet", Qt::CaseInsensitive) == 0)
+    else if (arg.compare(QString("internet"), Qt::CaseInsensitive) == 0)
     {
         retVal = Internet;
     }
-    else if (arg.compare("satellite", Qt::CaseInsensitive) == 0)
+    else if (arg.compare(QString("satellite"), Qt::CaseInsensitive) == 0)
     {
         retVal = Satellite;
     }
diff --git c/herqq/hupnp_av/src/common/hstoragemedium.cpp i/herqq/hupnp_av/src/common/hstoragemedium.cpp
index 37ab7e0..c7f2109 100644
--- c/herqq/hupnp_av/src/common/hstoragemedium.cpp
+++ i/herqq/hupnp_av/src/common/hstoragemedium.cpp
@@ -187,155 +187,155 @@ QString HStorageMedium::toString(Type type)
 HStorageMedium::Type HStorageMedium::fromString(const QString& type)
 {
     Type retVal = Unknown;
-    if (type.compare("UNKNOWN", Qt::CaseInsensitive) == 0)
+    if (type.compare(QString("UNKNOWN"), Qt::CaseInsensitive) == 0)
     {
         retVal = Unknown;
     }
-    else if (type.compare("DV", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("DV"), Qt::CaseInsensitive) == 0)
     {
         retVal = DigitalVideo;
     }
-    else if (type.compare("VHS", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("VHS"), Qt::CaseInsensitive) == 0)
     {
         retVal = VHS;
     }
-    else if (type.compare("W-VHS", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("W-VHS"), Qt::CaseInsensitive) == 0)
     {
         retVal = W_VHS;
     }
-    else if (type.compare("S-VHS", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("S-VHS"), Qt::CaseInsensitive) == 0)
     {
         retVal = S_VHS;
     }
-    else if (type.compare("D_VHS", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("D_VHS"), Qt::CaseInsensitive) == 0)
     {
         retVal = D_VHS;
     }
-    else if (type.compare("VHSC", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("VHSC"), Qt::CaseInsensitive) == 0)
     {
         retVal = VHSC;
     }
-    else if (type.compare("VIDEO8", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("VIDEO8"), Qt::CaseInsensitive) == 0)
     {
         retVal = Video8;
     }
-    else if (type.compare("HI8", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("HI8"), Qt::CaseInsensitive) == 0)
     {
         retVal = HI8;
     }
-    else if (type.compare("CD-ROM", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("CD-ROM"), Qt::CaseInsensitive) == 0)
     {
         retVal = CD_ROM;
     }
-    else if (type.compare("CD-DA", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("CD-DA"), Qt::CaseInsensitive) == 0)
     {
         retVal = CD_DA;
     }
-    else if (type.compare("CD-R", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("CD-R"), Qt::CaseInsensitive) == 0)
     {
         retVal = CD_R;
     }
-    else if (type.compare("CD-RW", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("CD-RW"), Qt::CaseInsensitive) == 0)
     {
         retVal = CD_RW;
     }
-    else if (type.compare("VIDEO-CD", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("VIDEO-CD"), Qt::CaseInsensitive) == 0)
     {
         retVal = Video_CD;
     }
-    else if (type.compare("SACD", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("SACD"), Qt::CaseInsensitive) == 0)
     {
         retVal = SACD;
     }
-    else if (type.compare("MD-AUDIO", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("MD-AUDIO"), Qt::CaseInsensitive) == 0)
     {
         retVal = MiniDiscAudio;
     }
-    else if (type.compare("MD-PICTURE", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("MD-PICTURE"), Qt::CaseInsensitive) == 0)
     {
         retVal = MiniDiscPicture;
     }
-    else if (type.compare("DVD-ROM", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("DVD-ROM"), Qt::CaseInsensitive) == 0)
     {
         retVal = DVD_ROM;
     }
-    else if (type.compare("DVD-VIDEO", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("DVD-VIDEO"), Qt::CaseInsensitive) == 0)
     {
         retVal = DVD_Video;
     }
-    else if (type.compare("DVD+R", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("DVD+R"), Qt::CaseInsensitive) == 0)
     {
         retVal = DVD_PlusRecordable;
     }
-    else if (type.compare("DVD-R", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("DVD-R"), Qt::CaseInsensitive) == 0)
     {
         retVal = DVD_MinusRecordable;
     }
-    else if (type.compare("DVD+RW", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("DVD+RW"), Qt::CaseInsensitive) == 0)
     {
         retVal = DVD_PlusRewritable;
     }
-    else if (type.compare("DVD-RW", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("DVD-RW"), Qt::CaseInsensitive) == 0)
     {
         retVal = DVD_MinusRewritable;
     }
-    else if (type.compare("DVD-RAM", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("DVD-RAM"), Qt::CaseInsensitive) == 0)
     {
         retVal = DVD_RAM;
     }
-    else if (type.compare("DAT", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("DAT"), Qt::CaseInsensitive) == 0)
     {
         retVal = DAT;
     }
-    else if (type.compare("LD", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("LD"), Qt::CaseInsensitive) == 0)
     {
         retVal = LD;
     }
-    else if (type.compare("HDD", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("HDD"), Qt::CaseInsensitive) == 0)
     {
         retVal = HDD;
     }
-    else if (type.compare("MICRO-MV", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("MICRO-MV"), Qt::CaseInsensitive) == 0)
     {
         retVal = MicroMV;
     }
-    else if (type.compare("NETWORK", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("NETWORK"), Qt::CaseInsensitive) == 0)
     {
         retVal = Network;
     }
-    else if (type.compare("NONE", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("NONE"), Qt::CaseInsensitive) == 0)
     {
         retVal = None;
     }
-    else if (type.compare("NOT_IMPLEMENTED", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("NOT_IMPLEMENTED"), Qt::CaseInsensitive) == 0)
     {
         retVal = NotImplemented;
     }
-    else if (type.compare("SD", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("SD"), Qt::CaseInsensitive) == 0)
     {
         retVal = SecureDigital;
     }
-    else if (type.compare("PC-CARD", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("PC-CARD"), Qt::CaseInsensitive) == 0)
     {
         retVal = PC_Card;
     }
-    else if (type.compare("MMC", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("MMC"), Qt::CaseInsensitive) == 0)
     {
         retVal = MultimediaCard;
     }
-    else if (type.compare("CF", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("CF"), Qt::CaseInsensitive) == 0)
     {
         retVal = CompactFlash;
     }
-    else if (type.compare("BD", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("BD"), Qt::CaseInsensitive) == 0)
     {
         retVal = BluRay;
     }
-    else if (type.compare("MS", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("MS"), Qt::CaseInsensitive) == 0)
     {
         retVal = MemoryStick;
     }
-    else if (type.compare("HD_DVD", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("HD_DVD"), Qt::CaseInsensitive) == 0)
     {
         retVal = HD_DVD;
     }
diff --git c/herqq/hupnp_av/src/connectionmanager/hconnectionmanager_info.cpp i/herqq/hupnp_av/src/connectionmanager/hconnectionmanager_info.cpp
index 89d44ae..bb364b5 100644
--- c/herqq/hupnp_av/src/connectionmanager/hconnectionmanager_info.cpp
+++ i/herqq/hupnp_av/src/connectionmanager/hconnectionmanager_info.cpp
@@ -57,11 +57,11 @@ HConnectionManagerInfo::Direction
     HConnectionManagerInfo::directionFromString(const QString& arg)
 {
     Direction retVal = DirectionUndefined;
-    if (arg.compare("Input", Qt::CaseInsensitive) == 0)
+    if (arg.compare(QString("Input"), Qt::CaseInsensitive) == 0)
     {
         retVal = DirectionInput;
     }
-    else if (arg.compare("Output", Qt::CaseInsensitive) == 0)
+    else if (arg.compare(QString("Output"), Qt::CaseInsensitive) == 0)
     {
         retVal = DirectionOutput;
     }
@@ -92,23 +92,23 @@ HConnectionManagerInfo::ConnectionStatus
     HConnectionManagerInfo::statusFromString(const QString& arg)
 {
     ConnectionStatus retVal = StatusUnknown;
-    if (arg.compare("Ok", Qt::CaseInsensitive) == 0)
+    if (arg.compare(QString("Ok"), Qt::CaseInsensitive) == 0)
     {
         retVal = StatusOk;
     }
-    else if (arg.compare("Unknown", Qt::CaseInsensitive) == 0)
+    else if (arg.compare(QString("Unknown"), Qt::CaseInsensitive) == 0)
     {
         retVal = StatusUnknown;
     }
-    else if (arg.compare("ContentFormatMismatch", Qt::CaseInsensitive) == 0)
+    else if (arg.compare(QString("ContentFormatMismatch"), Qt::CaseInsensitive) == 0)
     {
         retVal = StatusContentFormatMismatch;
     }
-    else if (arg.compare("InsufficientBandwidth", Qt::CaseInsensitive) == 0)
+    else if (arg.compare(QString("InsufficientBandwidth"), Qt::CaseInsensitive) == 0)
     {
         retVal = StatusInsufficientBandwidth;
     }
-    else if (arg.compare("UnreliableChannel", Qt::CaseInsensitive) == 0)
+    else if (arg.compare(QString("UnreliableChannel"), Qt::CaseInsensitive) == 0)
     {
         retVal = StatusUnreliableChannel;
     }
diff --git c/herqq/hupnp_av/src/contentdirectory/hcontentdirectory_info.cpp i/herqq/hupnp_av/src/contentdirectory/hcontentdirectory_info.cpp
index 5c0c0d0..743ed1e 100644
--- c/herqq/hupnp_av/src/contentdirectory/hcontentdirectory_info.cpp
+++ i/herqq/hupnp_av/src/contentdirectory/hcontentdirectory_info.cpp
@@ -80,11 +80,11 @@ HContentDirectoryInfo::BrowseFlag
     HContentDirectoryInfo::browseFlagFromString(const QString& arg)
 {
     BrowseFlag retVal = Undefined;
-    if (arg.compare("BrowseMetadata", Qt::CaseInsensitive) == 0)
+    if (arg.compare(QString("BrowseMetadata"), Qt::CaseInsensitive) == 0)
     {
         retVal = BrowseMetadata;
     }
-    else if (arg.compare("BrowseDirectChildren", Qt::CaseInsensitive) == 0)
+    else if (arg.compare(QString("BrowseDirectChildren"), Qt::CaseInsensitive) == 0)
     {
         retVal = BrowseDirectChildren;
     }
diff --git c/herqq/hupnp_av/src/contentdirectory/htransferprogressinfo.cpp i/herqq/hupnp_av/src/contentdirectory/htransferprogressinfo.cpp
index 0a663dc..1771b6f 100644
--- c/herqq/hupnp_av/src/contentdirectory/htransferprogressinfo.cpp
+++ i/herqq/hupnp_av/src/contentdirectory/htransferprogressinfo.cpp
@@ -85,15 +85,15 @@ HTransferProgressInfo::~HTransferProgressInfo()
 HTransferProgressInfo::Status HTransferProgressInfo::fromString(const QString& arg)
 {
     Status retVal = Error;
-    if (arg.compare("IN_PROGRESS", Qt::CaseInsensitive) == 0)
+    if (arg.compare(QString("IN_PROGRESS"), Qt::CaseInsensitive) == 0)
     {
         retVal = InProgress;
     }
-    else if (arg.compare("STOPPED", Qt::CaseInsensitive) == 0)
+    else if (arg.compare(QString("STOPPED"), Qt::CaseInsensitive) == 0)
     {
         retVal = Stopped;
     }
-    else if (arg.compare("COMPLETED", Qt::CaseInsensitive) == 0)
+    else if (arg.compare(QString("COMPLETED"), Qt::CaseInsensitive) == 0)
     {
         retVal = Completed;
     }
diff --git c/herqq/hupnp_av/src/hav_global.cpp i/herqq/hupnp_av/src/hav_global.cpp
index c3f93a9..27d98a0 100644
--- c/herqq/hupnp_av/src/hav_global.cpp
+++ i/herqq/hupnp_av/src/hav_global.cpp
@@ -647,7 +647,7 @@ HStateVariableCollection parseStateVariableCollection(const QString& arg)
     addNamespaces(reader);
 
     if (!reader.readNextStartElement() ||
-        reader.name().compare("stateVariableValuePairs", Qt::CaseInsensitive) != 0)
+        reader.name().compare(QString("stateVariableValuePairs"), Qt::CaseInsensitive) != 0)
     {
         return retVal;
     }
diff --git c/herqq/hupnp_av/src/mediabrowser/hmediabrowser.cpp i/herqq/hupnp_av/src/mediabrowser/hmediabrowser.cpp
index f9e2dc4..69b7648 100644
--- c/herqq/hupnp_av/src/mediabrowser/hmediabrowser.cpp
+++ i/herqq/hupnp_av/src/mediabrowser/hmediabrowser.cpp
@@ -287,7 +287,7 @@ void HMediaBrowserPrivate::lastChangeReceived(
 
     if (reader.readNextStartElement())
     {
-        if (reader.name().compare("StateEvent", Qt::CaseInsensitive) != 0)
+        if (reader.name().compare(QString("StateEvent"), Qt::CaseInsensitive) != 0)
         {
             return;
         }
diff --git c/herqq/hupnp_av/src/mediarenderer/hconnection.cpp i/herqq/hupnp_av/src/mediarenderer/hconnection.cpp
index 651e727..9fb4958 100644
--- c/herqq/hupnp_av/src/mediarenderer/hconnection.cpp
+++ i/herqq/hupnp_av/src/mediarenderer/hconnection.cpp
@@ -144,7 +144,7 @@ void HConnection::lastChangeReceived(
 
     if (reader.readNextStartElement())
     {
-        if (reader.name().compare("Event", Qt::CaseInsensitive) != 0)
+        if (reader.name().compare(QString("Event"), Qt::CaseInsensitive) != 0)
         {
             return;
         }
@@ -159,7 +159,7 @@ void HConnection::lastChangeReceived(
     {
         QStringRef name = reader.name();
 
-        if (name.compare("InstanceID", Qt::CaseInsensitive))
+        if (name.compare(QString("InstanceID"), Qt::CaseInsensitive))
         {
             continue;
         }
@@ -205,7 +205,7 @@ void HConnection::lastChangeReceived(HAvTransportAdapter*, const QString& data)
 
     if (reader.readNextStartElement())
     {
-        if (reader.name().compare("Event", Qt::CaseInsensitive) != 0)
+        if (reader.name().compare(QString("Event"), Qt::CaseInsensitive) != 0)
         {
             return;
         }
@@ -220,7 +220,7 @@ void HConnection::lastChangeReceived(HAvTransportAdapter*, const QString& data)
     {
         QStringRef name = reader.name();
 
-        if (name.compare("InstanceID", Qt::CaseInsensitive))
+        if (name.compare(QString("InstanceID"), Qt::CaseInsensitive))
         {
             continue;
         }
diff --git c/herqq/hupnp_av/src/mediarenderer/hconnectionmanager_sinkservice_p.cpp i/herqq/hupnp_av/src/mediarenderer/hconnectionmanager_sinkservice_p.cpp
index 174f423..bf7e9f2 100644
--- c/herqq/hupnp_av/src/mediarenderer/hconnectionmanager_sinkservice_p.cpp
+++ i/herqq/hupnp_av/src/mediarenderer/hconnectionmanager_sinkservice_p.cpp
@@ -109,7 +109,7 @@ qint32 HConnectionManagerSinkService::prepareForConnection(
         return HConnectionManagerInfo::IncompatibleDirections;
     }
 
-    if (remoteProtocolInfo.protocol().compare("http-get", Qt::CaseInsensitive) &&
+    if (remoteProtocolInfo.protocol().compare(QString("http-get"), Qt::CaseInsensitive) &&
         remoteProtocolInfo.protocol() != "*")
     {
         return HConnectionManagerInfo::IncompatibleProtocolInfo;
diff --git c/herqq/hupnp_av/src/mediarenderer/hrendererconnection_info.cpp i/herqq/hupnp_av/src/mediarenderer/hrendererconnection_info.cpp
index 1ad337a..0f5e209 100644
--- c/herqq/hupnp_av/src/mediarenderer/hrendererconnection_info.cpp
+++ i/herqq/hupnp_av/src/mediarenderer/hrendererconnection_info.cpp
@@ -1578,19 +1578,19 @@ bool HRendererConnectionInfo::hasChannelAssociated(const QString& svName)
 {
     bool retVal = false;
     QString trimmed = svName.trimmed();
-    if (trimmed.compare("Mute", Qt::CaseInsensitive) == 0)
+    if (trimmed.compare(QString("Mute"), Qt::CaseInsensitive) == 0)
     {
         retVal = true;
     }
-    else if (trimmed.compare("Volume", Qt::CaseInsensitive) == 0)
+    else if (trimmed.compare(QString("Volume"), Qt::CaseInsensitive) == 0)
     {
         retVal = true;
     }
-    else if (trimmed.compare("VolumeDB", Qt::CaseInsensitive) == 0)
+    else if (trimmed.compare(QString("VolumeDB"), Qt::CaseInsensitive) == 0)
     {
         retVal = true;
     }
-    else if (trimmed.compare("Loudness", Qt::CaseInsensitive) == 0)
+    else if (trimmed.compare(QString("Loudness"), Qt::CaseInsensitive) == 0)
     {
         retVal = true;
     }
diff --git c/herqq/hupnp_av/src/mediarenderer/htransport_sinkservice_p.cpp i/herqq/hupnp_av/src/mediarenderer/htransport_sinkservice_p.cpp
index a614e17..fbb3258 100644
--- c/herqq/hupnp_av/src/mediarenderer/htransport_sinkservice_p.cpp
+++ i/herqq/hupnp_av/src/mediarenderer/htransport_sinkservice_p.cpp
@@ -449,7 +449,7 @@ qint32 HTransportSinkService::getStateVariables(
     foreach(QString svName, stateVarNames)
     {
         svName = svName.trimmed();
-        if (svName.compare("LastChange", Qt::CaseInsensitive) == 0 ||
+        if (svName.compare(QString("LastChange"), Qt::CaseInsensitive) == 0 ||
             svName.startsWith("A_ARG", Qt::CaseInsensitive))
         {
             return HAvTransportInfo::InvalidStateVariableList;
@@ -512,7 +512,7 @@ qint32 HTransportSinkService::setStateVariables(
 
     if (reader.readNextStartElement())
     {
-        if (reader.name().compare("stateVariableValuePairs", Qt::CaseInsensitive) != 0)
+        if (reader.name().compare(QString("stateVariableValuePairs"), Qt::CaseInsensitive) != 0)
         {
             return UpnpInvalidArgs;
         }
diff --git c/herqq/hupnp_av/src/renderingcontrol/hchannel.cpp i/herqq/hupnp_av/src/renderingcontrol/hchannel.cpp
index 751a3d9..51c1ff4 100644
--- c/herqq/hupnp_av/src/renderingcontrol/hchannel.cpp
+++ i/herqq/hupnp_av/src/renderingcontrol/hchannel.cpp
@@ -110,59 +110,59 @@ QString HChannel::toString(Type type)
 HChannel::Type HChannel::fromString(const QString& type)
 {
     Type retVal = Undefined;
-    if (type.compare("MASTER", Qt::CaseInsensitive) == 0)
+    if (type.compare(QString("MASTER"), Qt::CaseInsensitive) == 0)
     {
         retVal = Master;
     }
-    else if (type.compare("LF", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("LF"), Qt::CaseInsensitive) == 0)
     {
         retVal = LeftFront;
     }
-    else if (type.compare("RF", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("RF"), Qt::CaseInsensitive) == 0)
     {
         retVal = RightFront;
     }
-    else if (type.compare("CF", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("CF"), Qt::CaseInsensitive) == 0)
     {
         retVal = CenterFront;
     }
-    else if (type.compare("LFE", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("LFE"), Qt::CaseInsensitive) == 0)
     {
         retVal = LFE;
     }
-    else if (type.compare("LS", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("LS"), Qt::CaseInsensitive) == 0)
     {
         retVal = LeftSurround;
     }
-    else if (type.compare("RS", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("RS"), Qt::CaseInsensitive) == 0)
     {
         retVal = RightSurround;
     }
-    else if (type.compare("LFC", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("LFC"), Qt::CaseInsensitive) == 0)
     {
         retVal = LeftOfCenter;
     }
-    else if (type.compare("RFC", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("RFC"), Qt::CaseInsensitive) == 0)
     {
         retVal = RightOfCenter;
     }
-    else if (type.compare("SD", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("SD"), Qt::CaseInsensitive) == 0)
     {
         retVal = Surround;
     }
-    else if (type.compare("SL", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("SL"), Qt::CaseInsensitive) == 0)
     {
         retVal = SideLeft;
     }
-    else if (type.compare("SR", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("SR"), Qt::CaseInsensitive) == 0)
     {
         retVal = SideRight;
     }
-    else if (type.compare("T", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("T"), Qt::CaseInsensitive) == 0)
     {
         retVal = Top;
     }
-    else if (type.compare("B", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("B"), Qt::CaseInsensitive) == 0)
     {
         retVal = Bottom;
     }
diff --git c/herqq/hupnp_av/src/renderingcontrol/hrenderingcontrol_service_p.cpp i/herqq/hupnp_av/src/renderingcontrol/hrenderingcontrol_service_p.cpp
index fd52f9a..84f5579 100644
--- c/herqq/hupnp_av/src/renderingcontrol/hrenderingcontrol_service_p.cpp
+++ i/herqq/hupnp_av/src/renderingcontrol/hrenderingcontrol_service_p.cpp
@@ -859,7 +859,7 @@ qint32 HRenderingControlService::setStateVariables(
 
     if (reader.readNextStartElement())
     {
-        if (reader.name().compare("stateVariableValuePairs", Qt::CaseInsensitive) != 0)
+        if (reader.name().compare(QString("stateVariableValuePairs"), Qt::CaseInsensitive) != 0)
         {
             return UpnpInvalidArgs;
         }
diff --git c/herqq/hupnp_av/src/transport/havtransport_info.cpp i/herqq/hupnp_av/src/transport/havtransport_info.cpp
index cb18ce0..e3fcd64 100644
--- c/herqq/hupnp_av/src/transport/havtransport_info.cpp
+++ i/herqq/hupnp_av/src/transport/havtransport_info.cpp
@@ -94,35 +94,35 @@ HAvTransportInfo::DrmState
     HAvTransportInfo::drmStateFromString(const QString& state)
 {
     DrmState retVal = DrmState_Unknown;
-    if (state.compare("OK", Qt::CaseInsensitive) == 0)
+    if (state.compare(QString("OK"), Qt::CaseInsensitive) == 0)
     {
         retVal = DrmState_Ok;
     }
-    else if (state.compare("UNKNOWN", Qt::CaseInsensitive) == 0)
+    else if (state.compare(QString("UNKNOWN"), Qt::CaseInsensitive) == 0)
     {
         retVal = DrmState_Unknown;
     }
-    else if (state.compare("PROCESSING_CONTENT_KEY", Qt::CaseInsensitive) == 0)
+    else if (state.compare(QString("PROCESSING_CONTENT_KEY"), Qt::CaseInsensitive) == 0)
     {
         retVal = DrmState_ProcessingContentKey;
     }
-    else if (state.compare("CONTENT_KEY_FAILURE", Qt::CaseInsensitive) == 0)
+    else if (state.compare(QString("CONTENT_KEY_FAILURE"), Qt::CaseInsensitive) == 0)
     {
         retVal = DrmState_ContentKeyFailure;
     }
-    else if (state.compare("ATTEMPTING_AUTHENTICATION", Qt::CaseInsensitive) == 0)
+    else if (state.compare(QString("ATTEMPTING_AUTHENTICATION"), Qt::CaseInsensitive) == 0)
     {
         retVal = DrmState_AttemptingAuthentication;
     }
-    else if (state.compare("FAILED_AUTHENTICATION", Qt::CaseInsensitive) == 0)
+    else if (state.compare(QString("FAILED_AUTHENTICATION"), Qt::CaseInsensitive) == 0)
     {
         retVal = DrmState_FailedAuthentication;
     }
-    else if (state.compare("NOT_AUTHENTICATED", Qt::CaseInsensitive) == 0)
+    else if (state.compare(QString("NOT_AUTHENTICATED"), Qt::CaseInsensitive) == 0)
     {
         retVal = DrmState_NotAuthenticated;
     }
-    else if (state.compare("DEVICE_REVOCATION", Qt::CaseInsensitive) == 0)
+    else if (state.compare(QString("DEVICE_REVOCATION"), Qt::CaseInsensitive) == 0)
     {
         retVal = DrmState_DeviceRevocation;
     }
diff --git c/herqq/hupnp_av/src/transport/hmediainfo.cpp i/herqq/hupnp_av/src/transport/hmediainfo.cpp
index 9e642c1..5f33847 100644
--- c/herqq/hupnp_av/src/transport/hmediainfo.cpp
+++ i/herqq/hupnp_av/src/transport/hmediainfo.cpp
@@ -180,15 +180,15 @@ HMediaInfo::MediaCategory HMediaInfo::mediaCategoryFromString(
     const QString& category)
 {
     MediaCategory retVal = Undefined;
-    if (category.compare("NO_MEDIA", Qt::CaseInsensitive) == 0)
+    if (category.compare(QString("NO_MEDIA"), Qt::CaseInsensitive) == 0)
     {
         retVal = NoMedia;
     }
-    else if (category.compare("TRACK_AWARE", Qt::CaseInsensitive) == 0)
+    else if (category.compare(QString("TRACK_AWARE"), Qt::CaseInsensitive) == 0)
     {
         retVal = TrackAware;
     }
-    else if (category.compare("TRACK_UNAWARE", Qt::CaseInsensitive) == 0)
+    else if (category.compare(QString("TRACK_UNAWARE"), Qt::CaseInsensitive) == 0)
     {
         retVal = TrackUnaware;
     }
diff --git c/herqq/hupnp_av/src/transport/hplaymode.cpp i/herqq/hupnp_av/src/transport/hplaymode.cpp
index 8d3a20e..57605f0 100644
--- c/herqq/hupnp_av/src/transport/hplaymode.cpp
+++ i/herqq/hupnp_av/src/transport/hplaymode.cpp
@@ -87,31 +87,31 @@ QString HPlayMode::toString(HPlayMode::Type type)
 HPlayMode::Type HPlayMode::fromString(const QString& type)
 {
     Type retVal = Undefined;
-    if (type.compare("NORMAL", Qt::CaseInsensitive) == 0)
+    if (type.compare(QString("NORMAL"), Qt::CaseInsensitive) == 0)
     {
         retVal = Normal;
     }
-    else if (type.compare("SHUFFLE", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("SHUFFLE"), Qt::CaseInsensitive) == 0)
     {
         retVal = Shuffle;
     }
-    else if (type.compare("REPEAT_ONE", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("REPEAT_ONE"), Qt::CaseInsensitive) == 0)
     {
         retVal = RepeatOne;
     }
-    else if (type.compare("REPEAT_ALL", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("REPEAT_ALL"), Qt::CaseInsensitive) == 0)
     {
         retVal = RepeatAll;
     }
-    else if (type.compare("RANDOM", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("RANDOM"), Qt::CaseInsensitive) == 0)
     {
         retVal = Random;
     }
-    else if (type.compare("DIRECT_1", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("DIRECT_1"), Qt::CaseInsensitive) == 0)
     {
         retVal = Direct_1;
     }
-    else if (type.compare("INTRO", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("INTRO"), Qt::CaseInsensitive) == 0)
     {
         retVal = Intro;
     }
diff --git c/herqq/hupnp_av/src/transport/hrecordmediumwritestatus.cpp i/herqq/hupnp_av/src/transport/hrecordmediumwritestatus.cpp
index ab29f09..a1a5de0 100644
--- c/herqq/hupnp_av/src/transport/hrecordmediumwritestatus.cpp
+++ i/herqq/hupnp_av/src/transport/hrecordmediumwritestatus.cpp
@@ -81,23 +81,23 @@ HRecordMediumWriteStatus::Type HRecordMediumWriteStatus::fromString(
     const QString& type)
 {
     Type retVal = Unknown;
-    if (type.compare("WRITABLE", Qt::CaseInsensitive) == 0)
+    if (type.compare(QString("WRITABLE"), Qt::CaseInsensitive) == 0)
     {
         retVal = Writable;
     }
-    else if (type.compare("PROTECTED", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("PROTECTED"), Qt::CaseInsensitive) == 0)
     {
         retVal = Protected;
     }
-    else if (type.compare("NOT_WRITABLE", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("NOT_WRITABLE"), Qt::CaseInsensitive) == 0)
     {
         retVal = NotWritable;
     }
-    else if (type.compare("NOT_IMPLEMENTED", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("NOT_IMPLEMENTED"), Qt::CaseInsensitive) == 0)
     {
         retVal = NotImplemented;
     }
-    else if (type.compare("UNKNOWN", Qt::CaseInsensitive) != 0 && !type.isEmpty())
+    else if (type.compare(QString("UNKNOWN"), Qt::CaseInsensitive) != 0 && !type.isEmpty())
     {
         retVal = VendorDefined;
     }
diff --git c/herqq/hupnp_av/src/transport/hrecordqualitymode.cpp i/herqq/hupnp_av/src/transport/hrecordqualitymode.cpp
index bf7dd90..b659fd7 100644
--- c/herqq/hupnp_av/src/transport/hrecordqualitymode.cpp
+++ i/herqq/hupnp_av/src/transport/hrecordqualitymode.cpp
@@ -88,31 +88,31 @@ QString HRecordQualityMode::toString(Type mode)
 HRecordQualityMode::Type HRecordQualityMode::fromString(const QString& mode)
 {
     Type retVal = Undefined;
-    if (mode.compare("0:EP", Qt::CaseInsensitive) == 0)
+    if (mode.compare(QString("0:EP"), Qt::CaseInsensitive) == 0)
     {
         retVal = Ep;
     }
-    else if (mode.compare("1:LP", Qt::CaseInsensitive) == 0)
+    else if (mode.compare(QString("1:LP"), Qt::CaseInsensitive) == 0)
     {
         retVal = Lp;
     }
-    else if (mode.compare("2:SP", Qt::CaseInsensitive) == 0)
+    else if (mode.compare(QString("2:SP"), Qt::CaseInsensitive) == 0)
     {
         retVal = Sp;
     }
-    else if (mode.compare("0:BASIC", Qt::CaseInsensitive) == 0)
+    else if (mode.compare(QString("0:BASIC"), Qt::CaseInsensitive) == 0)
     {
         retVal = Basic;
     }
-    else if (mode.compare("1:MEDIUM", Qt::CaseInsensitive) == 0)
+    else if (mode.compare(QString("1:MEDIUM"), Qt::CaseInsensitive) == 0)
     {
         retVal = Medium;
     }
-    else if (mode.compare("2:HIGH", Qt::CaseInsensitive) == 0)
+    else if (mode.compare(QString("2:HIGH"), Qt::CaseInsensitive) == 0)
     {
         retVal = High;
     }
-    else if (mode.compare("NOT_IMPLEMENTED", Qt::CaseInsensitive) == 0)
+    else if (mode.compare(QString("NOT_IMPLEMENTED"), Qt::CaseInsensitive) == 0)
     {
         retVal = NotImplemented;
     }
diff --git c/herqq/hupnp_av/src/transport/hseekinfo.cpp i/herqq/hupnp_av/src/transport/hseekinfo.cpp
index c2ac69a..d3eee2b 100644
--- c/herqq/hupnp_av/src/transport/hseekinfo.cpp
+++ i/herqq/hupnp_av/src/transport/hseekinfo.cpp
@@ -102,43 +102,43 @@ QString HSeekMode::toString(Type type)
 HSeekMode::Type HSeekMode::fromString(const QString& type)
 {
     Type retVal = Unknown;
-    if (type.compare("TRACK_NR", Qt::CaseInsensitive) == 0)
+    if (type.compare(QString("TRACK_NR"), Qt::CaseInsensitive) == 0)
     {
         retVal = TrackNr;
     }
-    else if (type.compare("ABS_TIME", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("ABS_TIME"), Qt::CaseInsensitive) == 0)
     {
         retVal = AbsTime;
     }
-    else if (type.compare("REL_TIME", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("REL_TIME"), Qt::CaseInsensitive) == 0)
     {
         retVal = RelTime;
     }
-    else if (type.compare("ABS_COUNT", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("ABS_COUNT"), Qt::CaseInsensitive) == 0)
     {
         retVal = AbsCount;
     }
-    else if (type.compare("REL_COUNT", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("REL_COUNT"), Qt::CaseInsensitive) == 0)
     {
         retVal = RelCount;
     }
-    else if (type.compare("CHANNEL_FREQ", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("CHANNEL_FREQ"), Qt::CaseInsensitive) == 0)
     {
         retVal = ChannelFreq;
     }
-    else if (type.compare("TAPE-INDEX", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("TAPE-INDEX"), Qt::CaseInsensitive) == 0)
     {
         retVal = TapeIndex;
     }
-    else if (type.compare("REL_TAPE-INDEX", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("REL_TAPE-INDEX"), Qt::CaseInsensitive) == 0)
     {
         retVal = RelTapeIndex;
     }
-    else if (type.compare("FRAME", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("FRAME"), Qt::CaseInsensitive) == 0)
     {
         retVal = Frame;
     }
-    else if (type.compare("REL_FRAME", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("REL_FRAME"), Qt::CaseInsensitive) == 0)
     {
         retVal = RelFrame;
     }
diff --git c/herqq/hupnp_av/src/transport/htransportaction.cpp i/herqq/hupnp_av/src/transport/htransportaction.cpp
index d64b1bc..4a34b8d 100644
--- c/herqq/hupnp_av/src/transport/htransportaction.cpp
+++ i/herqq/hupnp_av/src/transport/htransportaction.cpp
@@ -91,31 +91,31 @@ QString HTransportAction::toString(Type type)
 HTransportAction::Type HTransportAction::fromString(const QString& type)
 {
     Type retVal = Undefined;
-    if (type.compare("PLAY", Qt::CaseInsensitive) == 0)
+    if (type.compare(QString("PLAY"), Qt::CaseInsensitive) == 0)
     {
         retVal = Play;
     }
-    else if (type.compare("STOP", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("STOP"), Qt::CaseInsensitive) == 0)
     {
         retVal = Stop;
     }
-    else if (type.compare("PAUSE", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("PAUSE"), Qt::CaseInsensitive) == 0)
     {
         retVal = Pause;
     }
-    else if (type.compare("SEEK", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("SEEK"), Qt::CaseInsensitive) == 0)
     {
         retVal = Seek;
     }
-    else if (type.compare("NEXT", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("NEXT"), Qt::CaseInsensitive) == 0)
     {
         retVal = Next;
     }
-    else if (type.compare("PREVIOUS", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("PREVIOUS"), Qt::CaseInsensitive) == 0)
     {
         retVal = Previous;
     }
-    else if (type.compare("RECORD", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("RECORD"), Qt::CaseInsensitive) == 0)
     {
         retVal = Record;
     }
diff --git c/herqq/hupnp_av/src/transport/htransportinfo.cpp i/herqq/hupnp_av/src/transport/htransportinfo.cpp
index ecfaf0b..8ca9b1c 100644
--- c/herqq/hupnp_av/src/transport/htransportinfo.cpp
+++ i/herqq/hupnp_av/src/transport/htransportinfo.cpp
@@ -71,11 +71,11 @@ QString HTransportStatus::toString(HTransportStatus::Type type)
 HTransportStatus::Type HTransportStatus::fromString(const QString& type)
 {
     Type retVal = Undefined;
-    if (type.compare("OK", Qt::CaseInsensitive) == 0)
+    if (type.compare(QString("OK"), Qt::CaseInsensitive) == 0)
     {
         retVal = OK;
     }
-    else if (type.compare("ERROR_OCCURRED", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("ERROR_OCCURRED"), Qt::CaseInsensitive) == 0)
     {
         retVal = ErrorOccurred;
     }
diff --git c/herqq/hupnp_av/src/transport/htransportstate.cpp i/herqq/hupnp_av/src/transport/htransportstate.cpp
index b460065..f2a1ac3 100644
--- c/herqq/hupnp_av/src/transport/htransportstate.cpp
+++ i/herqq/hupnp_av/src/transport/htransportstate.cpp
@@ -89,31 +89,31 @@ QString HTransportState::toString(HTransportState::Type type)
 HTransportState::Type HTransportState::fromString(const QString& type)
 {
     Type retVal = Undefined;
-    if (type.compare("NO_MEDIA_PRESENT", Qt::CaseInsensitive) == 0)
+    if (type.compare(QString("NO_MEDIA_PRESENT"), Qt::CaseInsensitive) == 0)
     {
         retVal = NoMediaPresent;
     }
-    else if (type.compare("STOPPED", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("STOPPED"), Qt::CaseInsensitive) == 0)
     {
         retVal = Stopped;
     }
-    else if (type.compare("PLAYING", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("PLAYING"), Qt::CaseInsensitive) == 0)
     {
         retVal = Playing;
     }
-    else if (type.compare("TRANSITIONING", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("TRANSITIONING"), Qt::CaseInsensitive) == 0)
     {
         retVal = Transitioning;
     }
-    else if (type.compare("PAUSED_PLAYBACK", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("PAUSED_PLAYBACK"), Qt::CaseInsensitive) == 0)
     {
         retVal = PausedPlayback;
     }
-    else if (type.compare("PAUSED_RECORDING", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("PAUSED_RECORDING"), Qt::CaseInsensitive) == 0)
     {
         retVal = PausedRecording;
     }
-    else if (type.compare("RECORDING", Qt::CaseInsensitive) == 0)
+    else if (type.compare(QString("RECORDING"), Qt::CaseInsensitive) == 0)
     {
         retVal = Recording;
     }