diff --git a/qmake/generators/mac/pbuilder_pbx.cpp b/qmake/generators/mac/pbuilder_pbx.cpp
index 42dd6c8aeb5075485b6b38fe756e5e5ef47f1779..ef9aa9a2e60f1b77fd83478e736d59fa2577a66a 100644
--- a/qmake/generators/mac/pbuilder_pbx.cpp
+++ b/qmake/generators/mac/pbuilder_pbx.cpp
@@ -498,11 +498,11 @@ static QString xcodeFiletypeForFilename(const QString &filename)
         return QStringLiteral("sourcecode.cpp.objcpp");
     if (filename.endsWith(Option::objc_ext))
         return QStringLiteral("sourcecode.c.objc");
-    if (filename.endsWith(QStringLiteral(".framework")))
+    if (filename.endsWith(QLatin1String(".framework")))
         return QStringLiteral("wrapper.framework");
-    if (filename.endsWith(QStringLiteral(".a")))
+    if (filename.endsWith(QLatin1String(".a")))
         return QStringLiteral("archive.ar");
-    if (filename.endsWith(QStringLiteral(".pro")) || filename.endsWith(QStringLiteral(".qrc")))
+    if (filename.endsWith(QLatin1String(".pro")) || filename.endsWith(QLatin1String(".qrc")))
         return QStringLiteral("text");
 
     return QString();
diff --git a/qmake/generators/win32/cesdkhandler.cpp b/qmake/generators/win32/cesdkhandler.cpp
index f8235bae279680d1be062037f8e2548adfb0fb74..4550cc8aeddb35dfacfc56b489a2ec75d877efa3 100644
--- a/qmake/generators/win32/cesdkhandler.cpp
+++ b/qmake/generators/win32/cesdkhandler.cpp
@@ -63,8 +63,8 @@ struct ContainsPathKey
 {
     bool operator()(const QString &val) const
     {
-        return !(val.endsWith(QStringLiteral("MSBuildToolsPath"))
-                 || val.endsWith(QStringLiteral("MSBuildToolsRoot")));
+        return !(val.endsWith(QLatin1String("MSBuildToolsPath"))
+                 || val.endsWith(QLatin1String("MSBuildToolsRoot")));
     }
 };
 
@@ -141,7 +141,7 @@ bool CeSdkHandler::parseMsBuildFile(QFile *file, CeSdkInfo *info)
     if (success) {
         const QString startPattern = QStringLiteral("$(Registry:");
         const int startIndex = sdkRootPath.indexOf(startPattern);
-        const int endIndex = sdkRootPath.lastIndexOf(QStringLiteral(")"));
+        const int endIndex = sdkRootPath.lastIndexOf(QLatin1Char(')'));
         const QString regString = sdkRootPath.mid(startIndex + startPattern.size(),
                                                   endIndex - startIndex - startPattern.size());
         QSettings sdkRootPathRegistry(regString, QSettings::NativeFormat);
@@ -180,7 +180,7 @@ QStringList CeSdkHandler::filterMsBuildToolPaths(const QStringList &paths) const
     QStringList result;
     foreach (const QString &path, paths) {
         QDir dirVC110(path);
-        if (path.endsWith(QStringLiteral("bin")))
+        if (path.endsWith(QLatin1String("bin")))
             dirVC110.cdUp();
         QDir dirVC120 = dirVC110;
         if (dirVC110.cd(QStringLiteral("Microsoft.Cpp\\v4.0\\V110\\Platforms")))
@@ -279,7 +279,7 @@ void CeSdkHandler::retrieveWEC2013SDKs()
             if (cpuInfo.properties.isEmpty())
                 continue;
             const PropertyContainer &cpuInfoVal = cpuInfo.properties.first().properties.value(QLatin1String("CpuName"));
-            if (cpuInfoVal.name != QStringLiteral("CpuName"))
+            if (cpuInfoVal.name != QLatin1String("CpuName"))
                 continue;
             const QString SDKName = QStringLiteral("SDK name");
             currentSdk.m_name = currentProperty.properties.value(SDKName).value+
diff --git a/qmake/generators/win32/msbuild_objectmodel.cpp b/qmake/generators/win32/msbuild_objectmodel.cpp
index 8e2be589cdd19f839cb5eab00b9bd93165a1c088..bcfab80ccf1fd1729311263bfea073bd681d91ae 100644
--- a/qmake/generators/win32/msbuild_objectmodel.cpp
+++ b/qmake/generators/win32/msbuild_objectmodel.cpp
@@ -608,8 +608,8 @@ void VCXProjectWriter::write(XmlOutput &xml, VCProject &tool)
 
     xml.setIndentString("  ");
 
-    const QString toolsVersion = (tool.SdkVersion == QStringLiteral("10.0")) ? QStringLiteral("14.0")
-                                                                             : QStringLiteral("4.0");
+    const QString toolsVersion = (tool.SdkVersion == QLatin1String("10.0")) ? QStringLiteral("14.0")
+                                                                            : QStringLiteral("4.0");
 
     xml << decl("1.0", "utf-8")
         << tag("Project")
diff --git a/qmake/generators/win32/msvc_nmake.cpp b/qmake/generators/win32/msvc_nmake.cpp
index d6753b4ed65ee69c12ab8ebbca5028dfbb4c1b73..7499d76e7513baa7c20661dfd80fb51d8a51df9b 100644
--- a/qmake/generators/win32/msvc_nmake.cpp
+++ b/qmake/generators/win32/msvc_nmake.cpp
@@ -110,10 +110,10 @@ NmakeMakefileGenerator::writeMakefile(QTextStream &t)
                 QString arch = project->first("VCPROJ_ARCH").toQString().toLower();
                 QString compiler;
                 QString compilerArch;
-                if (arch == QStringLiteral("arm")) {
+                if (arch == QLatin1String("arm")) {
                     compiler = QStringLiteral("x86_arm");
                     compilerArch = QStringLiteral("arm");
-                } else if (arch == QStringLiteral("x64")) {
+                } else if (arch == QLatin1String("x64")) {
                     const ProStringList hostArch = project->values("QMAKE_TARGET.arch");
                     if (hostArch.contains("x86_64"))
                         compiler = QStringLiteral("amd64");
diff --git a/qmake/generators/win32/msvc_vcproj.cpp b/qmake/generators/win32/msvc_vcproj.cpp
index 465c8fc31295896dffdd065579306ec0b1cc8b05..c900cafbf21139d3746640849276d345f516897f 100644
--- a/qmake/generators/win32/msvc_vcproj.cpp
+++ b/qmake/generators/win32/msvc_vcproj.cpp
@@ -1199,7 +1199,7 @@ void VcprojGenerator::initResourceTool()
     foreach (const ProString &path, project->values("RC_INCLUDEPATH")) {
         QString fixedPath = fileFixify(path.toQString());
         if (fileInfo(fixedPath).isRelative()) {
-            if (fixedPath == QStringLiteral("."))
+            if (fixedPath == QLatin1String("."))
                 fixedPath = QStringLiteral("$(ProjectDir)");
             else
                 fixedPath.prepend(QStringLiteral("$(ProjectDir)\\"));
diff --git a/qmake/library/qmakeevaluator.cpp b/qmake/library/qmakeevaluator.cpp
index 4c5ce2e097859d8982891ec408cde9747b620d79..e9da45c14d2ebc7a3f5a1fc94756986eb383c33b 100644
--- a/qmake/library/qmakeevaluator.cpp
+++ b/qmake/library/qmakeevaluator.cpp
@@ -957,7 +957,7 @@ static ProString msvcBinDirToQMakeArch(QString subdir)
     if (idx >= 0)
         subdir.remove(0, idx + 1);
     subdir = subdir.toLower();
-    if (subdir == QStringLiteral("amd64"))
+    if (subdir == QLatin1String("amd64"))
         return ProString("x86_64");
     return ProString(subdir);
 }
diff --git a/qmake/main.cpp b/qmake/main.cpp
index bde537dcca5642324d5f44476a475d68e2ef4a95..5f848d482047ca5fabf4c52ff4affb849bf499de 100644
--- a/qmake/main.cpp
+++ b/qmake/main.cpp
@@ -309,8 +309,8 @@ int runQMake(int argc, char **argv)
                 dir = tmp_dir;
         }
 #ifdef Q_OS_MAC
-        if (fi.fileName().endsWith(QStringLiteral(".pbxproj"))
-            && dir.endsWith(QStringLiteral(".xcodeproj")))
+        if (fi.fileName().endsWith(QLatin1String(".pbxproj"))
+            && dir.endsWith(QLatin1String(".xcodeproj")))
             dir += QStringLiteral("/..");
 #endif
         if(!dir.isNull() && dir != ".")