It works for Qt 4.8.5. But doesn't work for Qt 5

Console_Russian_Hello_World_for_Qt5.pro
[code]
SOURCES +=
main.cpp

CONFIG += console
CONFIG -= app_bundle
QT -= gui
[/code]

main.cpp
[code]
#include <QCoreApplication>
#include <QDebug>
#include <QTextCodec>
#include <QTextStream>

QTextStream cin(stdin);
QTextStream cout(stdout);

void sayhellow(const QString& s) {
QTextStream out(stdout);
#if defined(Q_WS_WIN)
out.setCodec("IBM866");
#endif
out << s << endl;
out.flush();
}

int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);

QTextCodec * codec;
codec = QTextCodec::codecForName("utf-8");
QTextCodec::setCodecForCStrings(codec);
QTextCodec::setCodecForLocale(codec);
QTextCodec::setCodecForTr(codec);

QString s = "Привет, Мир!";
sayhellow(s);

return a.exec();

}

[/code]

Output
[code]
D:\Documents\Qt\QtExamples\0057_Console_Russian_Hello_World_Qt5\Console_Russian_Hello_World_Qt5\main.cpp:24: error: 'setCodecForCStrings' is not a member of 'QTextCodec'
QTextCodec::setCodecForCStrings(codec);
^

D:\Documents\Qt\QtExamples\0057_Console_Russian_Hello_World_Qt5\Console_Russian_Hello_World_Qt5\main.cpp:26: error: 'setCodecForTr' is not a member of 'QTextCodec'
QTextCodec::setCodecForTr(codec);
^
[/code]

Thank you!