don't use qWarning() - or even qFatal()! - gratuitously.

Task-number: QTBUG-8044

9 files changed, 178 insertions, 178 deletions

diff --git a/tools/linguist/lconvert/main.cpp b/tools/linguist/lconvert/main.cpp
index 543c405..049ea43 100644
--- a/tools/linguist/lconvert/main.cpp
+++ b/tools/linguist/lconvert/main.cpp
@@ -240,7 +240,7 @@ int main(int argc, char *argv[])
     tr.setLanguageCode(Translator::guessLanguageCodeFromFileName(inFiles[0].name));
 
     if (!tr.load(inFiles[0].name, cd, inFiles[0].format)) {
-        qWarning() << qPrintable(cd.error());
+        std::cerr << qPrintable(cd.error()) << std::endl;
         return 2;
     }
     tr.reportDuplicates(tr.resolveDuplicates(), inFiles[0].name, verbose);
@@ -248,7 +248,7 @@ int main(int argc, char *argv[])
     for (int i = 1; i < inFiles.size(); ++i) {
         Translator tr2;
         if (!tr2.load(inFiles[i].name, cd, inFiles[i].format)) {
-            qWarning() << qPrintable(cd.error());
+            std::cerr << qPrintable(cd.error()) << std::endl;
             return 2;
         }
         tr2.reportDuplicates(tr2.resolveDuplicates(), inFiles[i].name, verbose);
@@ -273,11 +273,11 @@ int main(int argc, char *argv[])
 
     tr.normalizeTranslations(cd);
     if (!cd.errors().isEmpty()) {
-        qWarning("%s", qPrintable(cd.error()));
+        std::cerr << qPrintable(cd.error()) << std::endl;
         cd.clearErrors();
     }
     if (!tr.save(outFileName, cd, outFormat)) {
-        qWarning("%s", qPrintable(cd.error()));
+        std::cerr << qPrintable(cd.error()) << std::endl;
         return 3;
     }
     return 0;
diff --git a/tools/linguist/lrelease/main.cpp b/tools/linguist/lrelease/main.cpp
index 266474e..df0b430 100644
--- a/tools/linguist/lrelease/main.cpp
+++ b/tools/linguist/lrelease/main.cpp
@@ -55,6 +55,8 @@
 #include <QtCore/QStringList>
 #include <QtCore/QTextStream>
 
+#include <iostream>
+
 QT_USE_NAMESPACE
 
 #ifdef QT_BOOTSTRAPPED
@@ -106,7 +108,7 @@ static bool loadTsFile(Translator &tor, const QString &tsFileName, bool /* verbo
     ConversionData cd;
     bool ok = tor.load(tsFileName, cd, QLatin1String("auto"));
     if (!ok) {
-        qWarning("lrelease error: %s\n", qPrintable(cd.error()));
+        std::cerr << "lrelease error: " << qPrintable(cd.error()) << std::endl;
     } else {
         if (!cd.errors().isEmpty())
             printOut(cd.error());
@@ -130,8 +132,8 @@ static bool releaseTranslator(Translator &tor, const QString &qmFileName,
 
     QFile file(qmFileName);
     if (!file.open(QIODevice::WriteOnly)) {
-        qWarning("lrelease error: cannot create '%s': %s\n",
-                 qPrintable(qmFileName), qPrintable(file.errorString()));
+        std::cerr << "lrelease error: cannot create '" << qPrintable(qmFileName)
+                  << "': " << qPrintable(file.errorString()) << std::endl;
         return false;
     }
 
@@ -140,8 +142,8 @@ static bool releaseTranslator(Translator &tor, const QString &qmFileName,
     file.close();
 
     if (!ok) {
-        qWarning("lrelease error: cannot save '%s': %s\n",
-                 qPrintable(qmFileName), qPrintable(cd.error()));
+        std::cerr << "lrelease error: cannot save '" << qPrintable(qmFileName)
+                  << "': " << qPrintable(cd.error()) << std::endl;
     } else if (!cd.errors().isEmpty()) {
         printOut(cd.error());
     }
@@ -253,19 +255,20 @@ int main(int argc, char **argv)
             visitor.setVerbose(cd.isVerbose());
 
             if (!visitor.queryProFile(&pro)) {
-                qWarning("lrelease error: cannot read project file '%s'.", qPrintable(inputFile));
+                std::cerr << "lrelease error: cannot read project file '"
+                          << qPrintable(inputFile) << "'.\n";
                 continue;
             }
             if (!visitor.accept(&pro)) {
-                qWarning("lrelease error: cannot process project file '%s'.", qPrintable(inputFile));
+                std::cerr << "lrelease error: cannot process project file '"
+                          << qPrintable(inputFile) << "'.\n";
                 continue;
             }
 
             QStringList translations = visitor.values(QLatin1String("TRANSLATIONS"));
             if (translations.isEmpty()) {
-                qWarning("lrelease warning: Met no 'TRANSLATIONS' entry in"
-                         " project file '%s'\n",
-                         qPrintable(inputFile));
+                std::cerr << "lrelease warning: Met no 'TRANSLATIONS' entry in project file '"
+                          << qPrintable(inputFile) << "'\n";
             } else {
                 QDir proDir(fi.absolutePath());
                 foreach (const QString &trans, translations)
diff --git a/tools/linguist/lupdate/cpp.cpp b/tools/linguist/lupdate/cpp.cpp
index db4bbca..b3e7e84 100644
--- a/tools/linguist/lupdate/cpp.cpp
+++ b/tools/linguist/lupdate/cpp.cpp
@@ -51,6 +51,8 @@
 #include <QtCore/QTextCodec>
 #include <QtCore/QTextStream>
 
+#include <iostream>
+
 #include <ctype.h>              // for isXXX()
 
 QT_BEGIN_NAMESPACE
@@ -226,6 +228,8 @@ private:
         int elseLine;
     };
 
+    std::ostream &yyMsg(int line = 0);
+
     uint getChar();
     uint getToken();
     bool getMacroArgs();
@@ -352,6 +356,12 @@ CppParser::CppParser(ParseResults *_results)
     inDefine = false;
 }
 
+
+std::ostream &CppParser::yyMsg(int line)
+{
+    return std::cerr << qPrintable(yyFileName) << ':' << (line ? line : yyLineNo) << ": ";
+}
+
 void CppParser::setInput(const QString &in)
 {
     yyInStr = in;
@@ -613,9 +623,9 @@ uint CppParser::getToken()
                             if (yyBracketDepth != is.bracketDepth1st
                                 || yyBraceDepth != is.braceDepth1st
                                 || yyParenDepth != is.parenDepth1st)
-                                qWarning("%s:%d: Parenthesis/bracket/brace mismatch between "
-                                         "#if and #else branches; using #if branch\n",
-                                         qPrintable(yyFileName), is.elseLine);
+                                yyMsg(is.elseLine)
+                                    << "Parenthesis/bracket/brace mismatch between "
+                                       "#if and #else branches; using #if branch\n";
                         } else {
                             is.bracketDepth1st = yyBracketDepth;
                             is.braceDepth1st = yyBraceDepth;
@@ -636,9 +646,9 @@ uint CppParser::getToken()
                             if (yyBracketDepth != is.bracketDepth1st
                                 || yyBraceDepth != is.braceDepth1st
                                 || yyParenDepth != is.parenDepth1st)
-                                qWarning("%s:%d: Parenthesis/brace mismatch between "
-                                         "#if and #else branches; using #if branch\n",
-                                         qPrintable(yyFileName), is.elseLine);
+                                yyMsg(is.elseLine)
+                                    << "Parenthesis/brace mismatch between "
+                                       "#if and #else branches; using #if branch\n";
                             yyBracketDepth = is.bracketDepth1st;
                             yyBraceDepth = is.braceDepth1st;
                             yyParenDepth = is.parenDepth1st;
@@ -664,8 +674,7 @@ uint CppParser::getToken()
                         forever {
                             yyCh = getChar();
                             if (yyCh == EOF) {
-                                qWarning("%s:%d: Unterminated C++ comment\n",
-                                         qPrintable(yyFileName), yyLineNo);
+                                yyMsg() << "Unterminated C++ comment\n";
                                 break;
                             }
 
@@ -795,8 +804,7 @@ uint CppParser::getToken()
                     forever {
                         yyCh = getChar();
                         if (yyCh == EOF) {
-                            qWarning("%s:%d: Unterminated C++ comment\n",
-                                     qPrintable(yyFileName), yyLineNo);
+                            yyMsg() << "Unterminated C++ comment\n";
                             break;
                         }
                         *ptr++ = yyCh;
@@ -829,8 +837,7 @@ uint CppParser::getToken()
                 yyWord.resize(ptr - (ushort *)yyWord.unicode());
 
                 if (yyCh != '"')
-                    qWarning("%s:%d: Unterminated C++ string\n",
-                              qPrintable(yyFileName), yyLineNo);
+                    yyMsg() << "Unterminated C++ string\n";
                 else
                     yyCh = getChar();
                 return Tok_String;
@@ -867,8 +874,7 @@ uint CppParser::getToken()
 
                 forever {
                     if (yyCh == EOF || yyCh == '\n') {
-                        qWarning("%s:%d: Unterminated C++ character\n",
-                                  qPrintable(yyFileName), yyLineNo);
+                        yyMsg() << "Unterminated C++ character\n";
                         break;
                     }
                     yyCh = getChar();
@@ -887,9 +893,9 @@ uint CppParser::getToken()
             case '}':
                 if (yyBraceDepth == yyMinBraceDepth) {
                     if (!inDefine)
-                        qWarning("%s:%d: Excess closing brace in C++ code"
-                                  " (or abuse of the C++ preprocessor)\n",
-                                  qPrintable(yyFileName), yyCurLineNo);
+                        yyMsg(yyCurLineNo)
+                            << "Excess closing brace in C++ code"
+                               " (or abuse of the C++ preprocessor)\n";
                     // Avoid things getting messed up even more
                     yyCh = getChar();
                     return Tok_Semicolon;
@@ -905,9 +911,9 @@ uint CppParser::getToken()
                 return Tok_LeftParen;
             case ')':
                 if (yyParenDepth == 0)
-                    qWarning("%s:%d: Excess closing parenthesis in C++ code"
-                             " (or abuse of the C++ preprocessor)\n",
-                             qPrintable(yyFileName), yyCurLineNo);
+                    yyMsg(yyCurLineNo)
+                        << "Excess closing parenthesis in C++ code"
+                           " (or abuse of the C++ preprocessor)\n";
                 else
                     yyParenDepth--;
                 yyCh = getChar();
@@ -920,9 +926,9 @@ uint CppParser::getToken()
                 return Tok_LeftBracket;
             case ']':
                 if (yyBracketDepth == 0)
-                    qWarning("%s:%d: Excess closing bracket in C++ code"
-                             " (or abuse of the C++ preprocessor)\n",
-                             qPrintable(yyFileName), yyCurLineNo);
+                    yyMsg(yyCurLineNo)
+                        << "Excess closing bracket in C++ code"
+                           " (or abuse of the C++ preprocessor)\n";
                 else
                     yyBracketDepth--;
                 yyCh = getChar();
@@ -1290,8 +1296,7 @@ void CppParser::processInclude(const QString &file, ConversionData &cd,
     QString cleanFile = QDir::cleanPath(file);
 
     if (inclusions.contains(cleanFile)) {
-        qWarning("%s:%d: circular inclusion of %s\n",
-                 qPrintable(yyFileName), yyLineNo, qPrintable(cleanFile));
+        yyMsg() << "circular inclusion of " << qPrintable(cleanFile) << std::endl;
         return;
     }
 
@@ -1315,9 +1320,9 @@ void CppParser::processInclude(const QString &file, ConversionData &cd,
 
     QFile f(cleanFile);
     if (!f.open(QIODevice::ReadOnly)) {
-        qWarning("%s:%d: Cannot open %s: %s\n",
-                 qPrintable(yyFileName), yyLineNo,
-                 qPrintable(cleanFile), qPrintable(f.errorString()));
+        yyMsg()
+            << "Cannot open " << qPrintable(cleanFile) << ": "
+            << qPrintable(f.errorString()) << std::endl;
         return;
     }
 
@@ -1656,8 +1661,7 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
                     // Forward-declared class definitions can be namespaced.
                     NamespaceList nsl;
                     if (!fullyQualify(namespaces, quali, true, &nsl, 0)) {
-                        qWarning("%s:%d: Ignoring definition of undeclared qualified class\n",
-                                 qPrintable(yyFileName), yyLineNo);
+                        yyMsg() << "Ignoring definition of undeclared qualified class\n";
                         break;
                     }
                     namespaceDepths.push(namespaces.count());
@@ -1757,8 +1761,7 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
             if (!tor)
                 goto case_default;
             if (!sourcetext.isEmpty())
-                qWarning("%s:%d: //%% cannot be used with tr() / QT_TR_NOOP(). Ignoring\n",
-                         qPrintable(yyFileName), yyLineNo);
+                yyMsg() << "//%% cannot be used with tr() / QT_TR_NOOP(). Ignoring\n";
             utf8 = (yyTok == Tok_trUtf8);
             line = yyLineNo;
             yyTok = getToken();
@@ -1779,10 +1782,9 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
                     QStringList unresolved;
                     if (!fullyQualify(namespaces, pendingContext, true, &functionContext, &unresolved)) {
                         functionContextUnresolved = unresolved.join(strColons);
-                        qWarning("%s:%d: Qualifying with unknown namespace/class %s::%s\n",
-                                 qPrintable(yyFileName), yyLineNo,
-                                 qPrintable(stringifyNamespace(functionContext)),
-                                 qPrintable(unresolved.first()));
+                        yyMsg() << "Qualifying with unknown namespace/class "
+                                << qPrintable(stringifyNamespace(functionContext)) << "::"
+                                << qPrintable(unresolved.first()) << std::endl;
                     }
                     pendingContext.clear();
                 }
@@ -1790,8 +1792,7 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
                     if (functionContextUnresolved.isEmpty()) {
                         int idx = functionContext.length();
                         if (idx < 2) {
-                            qWarning("%s:%d: tr() cannot be called without context\n",
-                                     qPrintable(yyFileName), yyLineNo);
+                            yyMsg() << "tr() cannot be called without context\n";
                             break;
                         }
                         Namespace *fctx;
@@ -1800,9 +1801,8 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
                                 context = stringifyNamespace(functionContext);
                                 fctx = findNamespace(functionContext)->classDef;
                                 if (!fctx->complained) {
-                                    qWarning("%s:%d: Class '%s' lacks Q_OBJECT macro\n",
-                                             qPrintable(yyFileName), yyLineNo,
-                                             qPrintable(context));
+                                    yyMsg() << "Class '" << qPrintable(context)
+                                            << "' lacks Q_OBJECT macro\n";
                                     fctx->complained = true;
                                 }
                                 goto gotctx;
@@ -1830,9 +1830,8 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
                     int last = prefix.lastIndexOf(strColons);
                     QString className = prefix.mid(last == -1 ? 0 : last + 2);
                     if (!className.isEmpty() && className == functionName) {
-                        qWarning("%s::%d: It is not recommended to call tr() from within a constructor '%s::%s' ",
-                                  qPrintable(yyFileName), yyLineNo,
-                                  className.constData(), functionName.constData());
+                        yyMsg() << "It is not recommended to call tr() from within a constructor '"
+                                << qPrintable(className) << "::" << qPrintable(functionName) << "'\n";
                     }
 #endif
                     prefix.chop(2);
@@ -1847,9 +1846,7 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
                             context = fctx->trQualification;
                         }
                         if (!fctx->hasTrFunctions && !fctx->complained) {
-                            qWarning("%s:%d: Class '%s' lacks Q_OBJECT macro\n",
-                                     qPrintable(yyFileName), yyLineNo,
-                                     qPrintable(context));
+                            yyMsg() << "Class '" << qPrintable(context) << "' lacks Q_OBJECT macro\n";
                             fctx->complained = true;
                         }
                     } else {
@@ -1870,8 +1867,7 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
             if (!tor)
                 goto case_default;
             if (!sourcetext.isEmpty())
-                qWarning("%s:%d: //%% cannot be used with translate() / QT_TRANSLATE_NOOP(). Ignoring\n",
-                         qPrintable(yyFileName), yyLineNo);
+                yyMsg() << "//%% cannot be used with translate() / QT_TRANSLATE_NOOP(). Ignoring\n";
             utf8 = (yyTok == Tok_translateUtf8);
             line = yyLineNo;
             yyTok = getToken();
@@ -1925,8 +1921,7 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
             if (!tor)
                 goto case_default;
             if (!msgid.isEmpty())
-                qWarning("%s:%d: //= cannot be used with qtTrId() / QT_TRID_NOOP(). Ignoring\n",
-                         qPrintable(yyFileName), yyLineNo);
+                yyMsg() << "//= cannot be used with qtTrId() / QT_TRID_NOOP(). Ignoring\n";
             //utf8 = false; // Maybe use //%% or something like that
             line = yyLineNo;
             yyTok = getToken();
@@ -1993,15 +1988,13 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
                     if (isspace(c))
                         continue;
                     if (c != '"') {
-                        qWarning("%s:%d: Unexpected character in meta string\n",
-                                 qPrintable(yyFileName), yyLineNo);
+                        yyMsg() << "Unexpected character in meta string\n";
                         break;
                     }
                     forever {
                         if (p >= yyWord.length()) {
                           whoops:
-                            qWarning("%s:%d: Unterminated meta string\n",
-                                     qPrintable(yyFileName), yyLineNo);
+                            yyMsg() << "Unterminated meta string\n";
                             break;
                         }
                         c = yyWord.unicode()[p++].unicode();
@@ -2054,8 +2047,7 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
         case Tok_Arrow:
             yyTok = getToken();
             if (yyTok == Tok_tr || yyTok == Tok_trUtf8)
-                qWarning("%s:%d: Cannot invoke tr() like this\n",
-                          qPrintable(yyFileName), yyLineNo);
+                yyMsg() << "Cannot invoke tr() like this\n";
             break;
         case Tok_ColonColon:
             if (yyBraceDepth == namespaceDepths.count() && yyParenDepth == 0 && !yyTokColonSeen)
@@ -2123,17 +2115,17 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
     }
 
     if (yyBraceDepth != 0)
-        qWarning("%s:%d: Unbalanced opening brace in C++ code"
-                  " (or abuse of the C++ preprocessor)\n",
-                  qPrintable(yyFileName), yyBraceLineNo);
+        yyMsg(yyBraceLineNo)
+            << "Unbalanced opening brace in C++ code"
+               " (or abuse of the C++ preprocessor)\n";
     else if (yyParenDepth != 0)
-        qWarning("%s:%d: Unbalanced opening parenthesis in C++ code"
-                 " (or abuse of the C++ preprocessor)\n",
-                 qPrintable(yyFileName), yyParenLineNo);
+        yyMsg(yyParenLineNo)
+            << "Unbalanced opening parenthesis in C++ code"
+               " (or abuse of the C++ preprocessor)\n";
     else if (yyBracketDepth != 0)
-        qWarning("%s:%d: Unbalanced opening bracket in C++ code"
-                 " (or abuse of the C++ preprocessor)\n",
-                 qPrintable(yyFileName), yyBracketLineNo);
+        yyMsg(yyBracketLineNo)
+            << "Unbalanced opening bracket in C++ code"
+               " (or abuse of the C++ preprocessor)\n";
 }
 
 const ParseResults *CppParser::recordResults(bool isHeader)
diff --git a/tools/linguist/lupdate/java.cpp b/tools/linguist/lupdate/java.cpp
index 27988b04..dc66e2b 100644
--- a/tools/linguist/lupdate/java.cpp
+++ b/tools/linguist/lupdate/java.cpp
@@ -51,6 +51,8 @@
 #include <QtCore/QString>
 #include <QtCore/QTextCodec>
 
+#include <iostream>
+
 #include <ctype.h>
 
 QT_BEGIN_NAMESPACE
@@ -107,6 +109,11 @@ static QString yyPackage;
 static QStack<Scope*> yyScope;
 static QString yyDefaultContext;
 
+std::ostream &yyMsg(int line = 0)
+{
+    return std::cerr << qPrintable(yyFileName) << ':' << (line ? line : yyLineNo) << ": ";
+}
+
 static QChar getChar()
 {
     if (yyInPos >= yyInStr.size())
@@ -189,10 +196,7 @@ static int getToken()
                     while ( !metAsterSlash ) {
                         yyCh = getChar();
                         if ( yyCh == EOF ) {
-                            qFatal( "%s: Unterminated Java comment starting at"
-                                    " line %d\n",
-                                    qPrintable(yyFileName), yyLineNo );
-
+                            yyMsg() << "Unterminated Java comment.\n";
                             return Tok_Comment;
                         }
 
@@ -228,8 +232,8 @@ static int getToken()
                                 else {
                                     int sub(yyCh.toLower().toAscii() - 87);
                                     if( sub > 15 || sub < 10) {
-                                        qFatal( "%s:%d: Invalid Unicode",
-                                            qPrintable(yyFileName), yyLineNo );
+                                        yyMsg() << "Invalid Unicode value.\n";
+                                        break;
                                     }
                                     unicode += sub;
                                 }
@@ -251,8 +255,7 @@ static int getToken()
                 }
 
                 if ( yyCh != QLatin1Char('"') )
-                    qFatal( "%s:%d: Unterminated string",
-                        qPrintable(yyFileName), yyLineNo );
+                    yyMsg() << "Unterminated string.\n";
 
                 yyCh = getChar();
 
@@ -365,9 +368,8 @@ static bool matchString( QString &s )
         if (yyTok == Tok_String)
             s += yyString;
         else {
-            qWarning( "%s:%d: String used in translation can only contain strings"
-                " concatenated with other strings, not expressions or numbers.",
-                qPrintable(yyFileName), yyLineNo );
+            yyMsg() << "String used in translation can contain only literals"
+                       " concatenated with other literals, not expressions or numbers.\n";
             return false;
         }
         yyTok = getToken();
@@ -475,8 +477,8 @@ static void parse( Translator *tor )
                 yyScope.push(new Scope(yyIdent, Scope::Clazz, yyLineNo));
             }
             else {
-                qFatal( "%s:%d: Class must be followed by a classname",
-                                          qPrintable(yyFileName), yyLineNo );
+                yyMsg() << "'class' must be followed by a class name.\n";
+                break;
             }
             while (!match(Tok_LeftBrace)) {
                 yyTok = getToken();
@@ -547,8 +549,7 @@ static void parse( Translator *tor )
 
         case Tok_RightBrace:
             if ( yyScope.isEmpty() ) {
-                qFatal( "%s:%d: Unbalanced right brace in Java code\n",
-                        qPrintable(yyFileName), yyLineNo );
+                yyMsg() << "Excess closing brace.\n";
             }
             else
                 delete (yyScope.pop());
@@ -577,8 +578,7 @@ static void parse( Translator *tor )
                         yyPackage.append(QLatin1String("."));
                         break;
                     default:
-                         qFatal( "%s:%d: Package keyword should be followed by com.package.name;",
-                                          qPrintable(yyFileName), yyLineNo );
+                         yyMsg() << "'package' must be followed by package name.\n";
                          break;
                 }
                 yyTok = getToken();
@@ -591,11 +591,9 @@ static void parse( Translator *tor )
     }
 
     if ( !yyScope.isEmpty() )
-        qFatal( "%s:%d: Unbalanced braces in Java code\n",
-                 qPrintable(yyFileName), yyScope.top()->line );
+        yyMsg(yyScope.top()->line) << "Unbalanced opening brace.\n";
     else if ( yyParenDepth != 0 )
-        qFatal( "%s:%d: Unbalanced parentheses in Java code\n",
-                 qPrintable(yyFileName), yyParenLineNo );
+        yyMsg(yyParenLineNo) << "Unbalanced opening parenthesis.\n";
 }
 
 
diff --git a/tools/linguist/lupdate/main.cpp b/tools/linguist/lupdate/main.cpp
index 6c9157a..1715b79 100644
--- a/tools/linguist/lupdate/main.cpp
+++ b/tools/linguist/lupdate/main.cpp
@@ -57,16 +57,15 @@
 
 static QString m_defaultExtensions;
 
-static void printErr(const QString & out)
-{
-    qWarning("%s", qPrintable(out));
-}
-
 static void printOut(const QString & out)
 {
     std::cerr << qPrintable(out);
 }
 
+class LU {
+    Q_DECLARE_TR_FUNCTIONS(LUpdate);
+};
+
 static void recursiveFileInfoList(const QDir &dir,
     const QSet<QString> &nameFilters, QDir::Filters filter,
     QFileInfoList *fileinfolist)
@@ -150,24 +149,25 @@ static void updateTsFiles(const Translator &fetchedTor, const QStringList &tsFil
         cd.m_sortContexts = !(options & NoSort);
         if (QFile(fileName).exists()) {
             if (!tor.load(fileName, cd, QLatin1String("auto"))) {
-                printErr(cd.error());
+                printOut(cd.error());
                 *fail = true;
                 continue;
             }
             tor.resolveDuplicates();
             cd.clearErrors();
             if (setCodec && fetchedTor.codec() != tor.codec())
-                qWarning("lupdate warning: Codec for tr() '%s' disagrees with "
-                         "existing file's codec '%s'. Expect trouble.",
-                         fetchedTor.codecName().constData(), tor.codecName().constData());
+                printOut(LU::tr("lupdate warning: Codec for tr() '%1' disagrees with"
+                                " existing file's codec '%2'. Expect trouble.\n")
+                         .arg(QString::fromLatin1(fetchedTor.codecName()),
+                              QString::fromLatin1(tor.codecName())));
             if (!targetLanguage.isEmpty() && targetLanguage != tor.languageCode())
-                qWarning("lupdate warning: Specified target language '%s' disagrees with "
-                         "existing file's language '%s'. Ignoring.",
-                         qPrintable(targetLanguage), qPrintable(tor.languageCode()));
+                printOut(LU::tr("lupdate warning: Specified target language '%1' disagrees with"
+                                " existing file's language '%2'. Ignoring.\n")
+                         .arg(targetLanguage, tor.languageCode()));
             if (!sourceLanguage.isEmpty() && sourceLanguage != tor.sourceLanguageCode())
-                qWarning("lupdate warning: Specified source language '%s' disagrees with "
-                         "existing file's language '%s'. Ignoring.",
-                         qPrintable(sourceLanguage), qPrintable(tor.sourceLanguageCode()));
+                printOut(LU::tr("lupdate warning: Specified source language '%1' disagrees with"
+                                " existing file's language '%2'. Ignoring.\n")
+                         .arg(sourceLanguage, tor.sourceLanguageCode()));
         } else {
             if (setCodec)
                 tor.setCodec(fetchedTor.codec());
@@ -210,11 +210,11 @@ static void updateTsFiles(const Translator &fetchedTor, const QStringList &tsFil
 
         out.normalizeTranslations(cd);
         if (!cd.errors().isEmpty()) {
-            printErr(cd.error());
+            printOut(cd.error());
             cd.clearErrors();
         }
         if (!out.save(fileName, cd, QLatin1String("auto"))) {
-            printErr(cd.error());
+            printOut(cd.error());
             *fail = true;
         }
     }
@@ -296,8 +296,9 @@ static void processProject(
     if (!tmp.isEmpty()) {
         codecForSource = tmp.last().toLatin1();
         if (!QTextCodec::codecForName(codecForSource)) {
-            qWarning("lupdate warning: Codec for source '%s' is invalid. "
-                     "Falling back to codec for tr().", codecForSource.constData());
+            printOut(LU::tr("lupdate warning: Codec for source '%1' is invalid."
+                            " Falling back to codec for tr().\n")
+                     .arg(QString::fromLatin1(codecForSource)));
             codecForSource.clear();
         }
     }
@@ -452,7 +453,7 @@ int main(int argc, char **argv)
         } else if (arg == QLatin1String("-target-language")) {
             ++i;
             if (i == argc) {
-                qWarning("The option -target-language requires a parameter.");
+                printOut(LU::tr("The option -target-language requires a parameter.\n"));
                 return 1;
             }
             targetLanguage = args[i];
@@ -460,7 +461,7 @@ int main(int argc, char **argv)
         } else if (arg == QLatin1String("-source-language")) {
             ++i;
             if (i == argc) {
-                qWarning("The option -source-language requires a parameter.");
+                printOut(LU::tr("The option -source-language requires a parameter.\n"));
                 return 1;
             }
             sourceLanguage = args[i];
@@ -468,7 +469,7 @@ int main(int argc, char **argv)
         } else if (arg == QLatin1String("-disable-heuristic")) {
             ++i;
             if (i == argc) {
-                qWarning("The option -disable-heuristic requires a parameter.");
+                printOut(LU::tr("The option -disable-heuristic requires a parameter.\n"));
                 return 1;
             }
             arg = args[i];
@@ -479,14 +480,14 @@ int main(int argc, char **argv)
             } else if (arg == QLatin1String("number")) {
                 options &= ~HeuristicNumber;
             } else {
-                qWarning("Invalid heuristic name passed to -disable-heuristic.");
+                printOut(LU::tr("Invalid heuristic name passed to -disable-heuristic.\n"));
                 return 1;
             }
             continue;
         } else if (arg == QLatin1String("-locations")) {
             ++i;
             if (i == argc) {
-                qWarning("The option -locations requires a parameter.");
+                printOut(LU::tr("The option -locations requires a parameter.\n"));
                 return 1;
             }
             if (args[i] == QLatin1String("none")) {
@@ -496,7 +497,7 @@ int main(int argc, char **argv)
             } else if (args[i] == QLatin1String("absolute")) {
                 options |= AbsoluteLocations;
             } else {
-                qWarning("Invalid parameter passed to -locations.");
+                printOut(LU::tr("Invalid parameter passed to -locations.\n"));
                 return 1;
             }
             continue;
@@ -522,7 +523,7 @@ int main(int argc, char **argv)
         } else if (arg == QLatin1String("-codecfortr")) {
             ++i;
             if (i == argc) {
-                qWarning("The -codecfortr option should be followed by a codec name.");
+                printOut(LU::tr("The -codecfortr option should be followed by a codec name.\n"));
                 return 1;
             }
             codecForTr = args[i].toLatin1();
@@ -533,7 +534,7 @@ int main(int argc, char **argv)
         } else if (arg == QLatin1String("-extensions")) {
             ++i;
             if (i == argc) {
-                qWarning("The -extensions option should be followed by an extension list.");
+                printOut(LU::tr("The -extensions option should be followed by an extension list.\n"));
                 return 1;
             }
             extensions = args[i];
@@ -541,7 +542,7 @@ int main(int argc, char **argv)
         } else if (arg == QLatin1String("-pro")) {
             ++i;
             if (i == argc) {
-                qWarning("The -pro option should be followed by a filename of .pro file.");
+                printOut(LU::tr("The -pro option should be followed by a filename of .pro file.\n"));
                 return 1;
             }
             proFiles += args[i];
@@ -551,7 +552,7 @@ int main(int argc, char **argv)
             if (arg.length() == 2) {
                 ++i;
                 if (i == argc) {
-                    qWarning("The -I option should be followed by a path.");
+                    printOut(LU::tr("The -I option should be followed by a path.\n"));
                     return 1;
                 }
                 includePath += args[i];
@@ -560,7 +561,7 @@ int main(int argc, char **argv)
             }
             continue;
         } else if (arg.startsWith(QLatin1String("-")) && arg != QLatin1String("-")) {
-            qWarning("Unrecognized option '%s'", qPrintable(arg));
+            printOut(LU::tr("Unrecognized option '%1'.\n").arg(arg));
             return 1;
         }
 
@@ -568,8 +569,8 @@ int main(int argc, char **argv)
         if (arg.startsWith(QLatin1String("@"))) {
             QFile lstFile(arg.mid(1));
             if (!lstFile.open(QIODevice::ReadOnly)) {
-                qWarning("lupdate error: List file '%s' is not readable",
-                         qPrintable(lstFile.fileName()));
+                printOut(LU::tr("lupdate error: List file '%1' is not readable.\n")
+                         .arg(lstFile.fileName()));
                 return 1;
             }
             while (!lstFile.atEnd())
@@ -586,16 +587,16 @@ int main(int argc, char **argv)
                         if (!fi.exists() || fi.isWritable()) {
                             tsFileNames.append(QFileInfo(file).absoluteFilePath());
                         } else {
-                            qWarning("lupdate warning: For some reason, '%s' is not writable.\n",
-                                    qPrintable(file));
+                            printOut(LU::tr("lupdate warning: For some reason, '%1' is not writable.\n")
+                                     .arg(file));
                         }
                         found = true;
                         break;
                     }
                 }
                 if (!found) {
-                    qWarning("lupdate error: File '%s' has no recognized extension\n",
-                             qPrintable(file));
+                    printOut(LU::tr("lupdate error: File '%1' has no recognized extension.\n")
+                             .arg(file));
                     return 1;
                 }
             }
@@ -604,7 +605,7 @@ int main(int argc, char **argv)
             foreach (const QString &file, files) {
                 QFileInfo fi(file);
                 if (!fi.exists()) {
-                    qWarning("lupdate error: File '%s' does not exists\n", qPrintable(file));
+                    printOut(LU::tr("lupdate error: File '%1' does not exist.\n").arg(file));
                     return 1;
                 }
                 if (file.endsWith(QLatin1String(".pro"), Qt::CaseInsensitive)
@@ -612,7 +613,7 @@ int main(int argc, char **argv)
                     proFiles << file;
                 } else if (fi.isDir()) {
                     if (options & Verbose)
-                        printOut(QObject::tr("Scanning directory '%1'...").arg(file));
+                        printOut(QObject::tr("Scanning directory '%1'...\n").arg(file));
                     QDir dir = QDir(fi.filePath());
                     projectRoots.insert(dir.absolutePath() + QLatin1Char('/'));
                     if (extensionsNameFilters.isEmpty()) {
@@ -662,16 +663,16 @@ int main(int argc, char **argv)
     }
 
     if (!targetLanguage.isEmpty() && tsFileNames.count() != 1)
-        std::cerr << "lupdate warning: -target-language usually only "
-                     "makes sense with exactly one TS file.\n";
+        printOut(LU::tr("lupdate warning: -target-language usually only"
+                        " makes sense with exactly one TS file.\n"));
     if (!codecForTr.isEmpty() && tsFileNames.isEmpty())
-        std::cerr << "lupdate warning: -codecfortr has no effect without -ts.\n";
+        printOut(LU::tr("lupdate warning: -codecfortr has no effect without -ts.\n"));
 
     bool fail = false;
     if (proFiles.isEmpty()) {
         if (tsFileNames.isEmpty())
-            std::cerr << "lupdate warning: no TS files specified. "
-                         "Only diagnostics will be produced.\n";
+            printOut(LU::tr("lupdate warning:"
+                            " no TS files specified. Only diagnostics will be produced.\n"));
 
         Translator fetchedTor;
         ConversionData cd;
@@ -685,7 +686,8 @@ int main(int argc, char **argv)
                       sourceLanguage, targetLanguage, options, &fail);
     } else {
         if (!sourceFiles.isEmpty() || !includePath.isEmpty()) {
-            qWarning("lupdate error: Both project and source files / include paths specified.\n");
+            printOut(LU::tr("lupdate error:"
+                            " Both project and source files / include paths specified.\n"));
             return 1;
         }
         if (!tsFileNames.isEmpty()) {
diff --git a/tools/linguist/lupdate/qscript.cpp b/tools/linguist/lupdate/qscript.cpp
index 33276e6..188ac36 100644
--- a/tools/linguist/lupdate/qscript.cpp
+++ b/tools/linguist/lupdate/qscript.cpp
@@ -53,6 +53,8 @@
 #include <QtCore/qtextcodec.h>
 #include <QtCore/qvariant.h>
 
+#include <iostream>
+
 #include <ctype.h>
 #include <stdlib.h>
 #include <stdio.h>
@@ -2214,13 +2216,13 @@ case 66: {
     if ((name == QLatin1String("qsTranslate")) || (name == QLatin1String("QT_TRANSLATE_NOOP"))) {
         QVariantList args = sym(2).toList();
         if (args.size() < 2) {
-            qWarning("%s:%d: %s() requires at least two arguments",
-                     qPrintable(fileName), identLineNo, qPrintable(name));
+            std::cerr << qPrintable(fileName) << ':' << identLineNo << ": "
+                      << qPrintable(name) << "() requires at least two arguments.\n";
         } else {
             if ((args.at(0).type() != QVariant::String)
                 || (args.at(1).type() != QVariant::String)) {
-                qWarning("%s:%d: %s(): both arguments must be literal strings",
-                         qPrintable(fileName), identLineNo, qPrintable(name));
+                std::cerr << qPrintable(fileName) << ':' << identLineNo << ": "
+                          << qPrintable(name) << "(): both arguments must be literal strings.\n";
             } else {
                 QString context = args.at(0).toString();
                 QString text = args.at(1).toString();
@@ -2234,12 +2236,12 @@ case 66: {
     } else if ((name == QLatin1String("qsTr")) || (name == QLatin1String("QT_TR_NOOP"))) {
         QVariantList args = sym(2).toList();
         if (args.size() < 1) {
-            qWarning("%s:%d: %s() requires at least one argument",
-                     qPrintable(fileName), identLineNo, qPrintable(name));
+            std::cerr << qPrintable(fileName) << ':' << identLineNo << ": "
+                      << qPrintable(name) << "() requires at least one argument.\n";
         } else {
             if (args.at(0).type() != QVariant::String) {
-                qWarning("%s:%d: %s(): text to translate must be a literal string",
-                         qPrintable(fileName), identLineNo, qPrintable(name));
+                std::cerr << qPrintable(fileName) << ':' << identLineNo << ": "
+                          << qPrintable(name) << "(): text to translate must be a literal string.\n";
             } else {
                 QString context = QFileInfo(fileName).baseName();
                 QString text = args.at(0).toString();
@@ -2377,8 +2379,8 @@ bool loadQScript(Translator &translator, const QString &filename, ConversionData
     lexer.setCode(code, /*lineNumber=*/1);
     QScriptParser parser;
     if (!parser.parse(&lexer, filename, &translator)) {
-        qWarning("%s:%d: %s", qPrintable(filename), parser.errorLineNumber(),
-                 qPrintable(parser.errorMessage()));
+        std::cerr << qPrintable(filename) << ':' << parser.errorLineNumber() << ": "
+                  << qPrintable(parser.errorMessage()) << std::endl;
         return false;
     }
 
diff --git a/tools/linguist/lupdate/qscript.g b/tools/linguist/lupdate/qscript.g
index a473500..a07753c 100644
--- a/tools/linguist/lupdate/qscript.g
+++ b/tools/linguist/lupdate/qscript.g
@@ -90,6 +90,8 @@
 #include <QtCore/qtextcodec.h>
 #include <QtCore/qvariant.h>
 
+#include <iostream>
+
 #include <ctype.h>
 #include <stdlib.h>
 #include <stdio.h>
@@ -1630,13 +1632,13 @@ case $rule_number: {
     if ((name == QLatin1String("qsTranslate")) || (name == QLatin1String("QT_TRANSLATE_NOOP"))) {
         QVariantList args = sym(2).toList();
         if (args.size() < 2) {
-            qWarning("%s:%d: %s() requires at least two arguments",
-                     qPrintable(fileName), identLineNo, qPrintable(name));
+            std::cerr << qPrintable(fileName) << ':' << identLineNo << ": "
+                      << qPrintable(name) << "() requires at least two arguments.\n";
         } else {
             if ((args.at(0).type() != QVariant::String)
                 || (args.at(1).type() != QVariant::String)) {
-                qWarning("%s:%d: %s(): both arguments must be literal strings",
-                         qPrintable(fileName), identLineNo, qPrintable(name));
+                std::cerr << qPrintable(fileName) << ':' << identLineNo << ": "
+                          << qPrintable(name) << "(): both arguments must be literal strings.\n";
             } else {
                 QString context = args.at(0).toString();
                 QString text = args.at(1).toString();
@@ -1650,12 +1652,12 @@ case $rule_number: {
     } else if ((name == QLatin1String("qsTr")) || (name == QLatin1String("QT_TR_NOOP"))) {
         QVariantList args = sym(2).toList();
         if (args.size() < 1) {
-            qWarning("%s:%d: %s() requires at least one argument",
-                     qPrintable(fileName), identLineNo, qPrintable(name));
+            std::cerr << qPrintable(fileName) << ':' << identLineNo << ": "
+                      << qPrintable(name) << "() requires at least one argument.\n";
         } else {
             if (args.at(0).type() != QVariant::String) {
-                qWarning("%s:%d: %s(): text to translate must be a literal string",
-                         qPrintable(fileName), identLineNo, qPrintable(name));
+                std::cerr << qPrintable(fileName) << ':' << identLineNo << ": "
+                          << qPrintable(name) << "(): text to translate must be a literal string.\n";
             } else {
                 QString context = QFileInfo(fileName).baseName();
                 QString text = args.at(0).toString();
@@ -2009,8 +2011,8 @@ bool loadQScript(Translator &translator, const QString &filename, ConversionData
     lexer.setCode(code, /*lineNumber=*/1);
     QScriptParser parser;
     if (!parser.parse(&lexer, filename, &translator)) {
-        qWarning("%s:%d: %s", qPrintable(filename), parser.errorLineNumber(),
-                 qPrintable(parser.errorMessage()));
+        std::cerr << qPrintable(filename) << ':' << parser.errorLineNumber() << ": "
+                  << qPrintable(parser.errorMessage()) << std::endl;
         return false;
     }
 
diff --git a/tools/linguist/shared/profileevaluator.cpp b/tools/linguist/shared/profileevaluator.cpp
index 5e1ee1f..a21408c 100644
--- a/tools/linguist/shared/profileevaluator.cpp
+++ b/tools/linguist/shared/profileevaluator.cpp
@@ -2594,19 +2594,19 @@ void ProFileEvaluator::addProperties(const QHash<QString, QString> &properties)
 void ProFileEvaluator::logMessage(const QString &message)
 {
     if (d->m_verbose && !d->m_skipLevel)
-        qWarning("%s", qPrintable(message));
+        fprintf(stderr, "%s\n", qPrintable(message));
 }
 
 void ProFileEvaluator::fileMessage(const QString &message)
 {
     if (!d->m_skipLevel)
-        qWarning("%s", qPrintable(message));
+        fprintf(stderr, "%s\n", qPrintable(message));
 }
 
 void ProFileEvaluator::errorMessage(const QString &message)
 {
     if (!d->m_skipLevel)
-        qWarning("%s", qPrintable(message));
+        fprintf(stderr, "%s\n", qPrintable(message));
 }
 
 void ProFileEvaluator::setVerbose(bool on)
diff --git a/tools/linguist/shared/translator.cpp b/tools/linguist/shared/translator.cpp
index c86a9dd..8223dc6 100644
--- a/tools/linguist/shared/translator.cpp
+++ b/tools/linguist/shared/translator.cpp
@@ -43,6 +43,8 @@
 
 #include "simtexth.h"
 
+#include <iostream>
+
 #include <stdio.h>
 #ifdef Q_OS_WIN
 // required for _setmode, to avoid _O_TEXT streams...
@@ -586,22 +588,21 @@ void Translator::reportDuplicates(const Duplicates &dupes,
                                   const QString &fileName, bool verbose)
 {
     if (!dupes.byId.isEmpty() || !dupes.byContents.isEmpty()) {
+        std::cerr << "Warning: dropping duplicate messages in '" << qPrintable(fileName);
         if (!verbose) {
-            qWarning("Warning: dropping duplicate messages in '%s'\n(try -verbose for more info).",
-                     qPrintable(fileName));
+            std::cerr << "'\n(try -verbose for more info).\n";
         } else {
-            qWarning("Warning: dropping duplicate messages in '%s':", qPrintable(fileName));
+            std::cerr << "':\n";
             foreach (int i, dupes.byId)
-                qWarning("\n* ID: %s", qPrintable(message(i).id()));
+                std::cerr << "\n* ID: " << qPrintable(message(i).id()) << std::endl;
             foreach (int j, dupes.byContents) {
                 const TranslatorMessage &msg = message(j);
-                qWarning("\n* Context: %s\n* Source: %s",
-                        qPrintable(msg.context()),
-                        qPrintable(msg.sourceText()));
+                std::cerr << "\n* Context: " << qPrintable(msg.context())
+                          << "\n* Source: " << qPrintable(msg.sourceText()) << std::endl;
                 if (!msg.comment().isEmpty())
-                    qWarning("* Comment: %s", qPrintable(msg.comment()));
+                    std::cerr << "* Comment: " << qPrintable(msg.comment()) << std::endl;
             }
-            qWarning();
+            std::cerr << std::endl;
         }
     }
 }
@@ -737,7 +738,7 @@ void Translator::setCodecName(const QByteArray &name)
     QTextCodec *codec = QTextCodec::codecForName(name);
     if (!codec) {
         if (!name.isEmpty())
-            qWarning("No QTextCodec for %s available. Using Latin1\n", name.constData());
+            std::cerr << "No QTextCodec for " << name.constData() << " available. Using Latin1.\n";
         m_codec = QTextCodec::codecForName("ISO-8859-1");
     } else {
         m_codec = codec;