Fix some Qt 6 build errors

Change-Id: I80dccfacb749ecfc8bfb8000bdc26c684f2afa52
Reviewed-by: Ivan Komissarov <ABBAPOH@gmail.com>

8 files changed, 30 insertions, 15 deletions

diff --git a/src/app/qbs-setup-toolchains/gccprobe.cpp b/src/app/qbs-setup-toolchains/gccprobe.cpp
index c521a3fed..bf80077c8 100644
--- a/src/app/qbs-setup-toolchains/gccprobe.cpp
+++ b/src/app/qbs-setup-toolchains/gccprobe.cpp
@@ -410,8 +410,8 @@ static QStringList renesasRl78RegistrySearchPaths()
         if (installLocation.isEmpty())
             continue;
 
-        const QFileInfo toolchainPath = QDir(installLocation).absolutePath()
-                + QLatin1String("/rl78-elf/rl78-elf/bin");
+        const QFileInfo toolchainPath(QDir(installLocation).absolutePath()
+                + QLatin1String("/rl78-elf/rl78-elf/bin"));
         if (!toolchainPath.exists())
             continue;
         searchPaths.push_back(toolchainPath.absoluteFilePath());
@@ -442,8 +442,8 @@ static QStringList mplabX32RegistrySearchPaths()
         if (installLocation.isEmpty())
             continue;
 
-        const QFileInfo toolchainPath = QDir(installLocation).absolutePath()
-                + QLatin1String("/bin");
+        const QFileInfo toolchainPath(QDir(installLocation).absolutePath()
+                + QLatin1String("/bin"));
         if (!toolchainPath.exists())
             continue;
         searchPaths.push_back(toolchainPath.absoluteFilePath());
@@ -543,7 +543,7 @@ void gccProbe(Settings *settings, std::vector<Profile> &profiles, const QString
                     || fileName.startsWith(QLatin1String("c99-gcc"))) {
                 continue;
             }
-            const QFileInfo candidate = dir.filePath(fileName);
+            const QFileInfo candidate(dir.filePath(fileName));
             // Filter duplicates.
             const auto existingEnd = candidates.end();
             const auto existingIt = std::find_if(
diff --git a/src/app/qbs-setup-toolchains/sdccprobe.cpp b/src/app/qbs-setup-toolchains/sdccprobe.cpp
index 977d834c4..9c68d0c0f 100644
--- a/src/app/qbs-setup-toolchains/sdccprobe.cpp
+++ b/src/app/qbs-setup-toolchains/sdccprobe.cpp
@@ -253,8 +253,10 @@ static std::vector<ToolchainInstallInfo> installedSdccsFromRegistry()
                 return candidate == SdccInstallInfo{
                     info.compilerPath.filePath(), info.compilerVersion.toString()};
             });
-            if (infosIt == infosEnd)
-                infos.push_back({candidate.compilerPath, Version::fromString(candidate.version)});
+            if (infosIt == infosEnd) {
+                infos.push_back({QFileInfo(candidate.compilerPath),
+                                 Version::fromString(candidate.version)});
+            }
         }
     }
 
diff --git a/src/lib/corelib/generators/generatordata.cpp b/src/lib/corelib/generators/generatordata.cpp
index 7c6573484..25afae23d 100644
--- a/src/lib/corelib/generators/generatordata.cpp
+++ b/src/lib/corelib/generators/generatordata.cpp
@@ -133,7 +133,7 @@ QFileInfo GeneratableProject::filePath() const
         filePath.insert(it.value().location().filePath());
     }
     Q_ASSERT(filePath.size() == 1);
-    return *filePath.begin();
+    return QFileInfo(*filePath.begin());
 }
 
 bool GeneratableProject::hasMultipleConfigurations() const
diff --git a/src/lib/corelib/parser/qmljslexer.cpp b/src/lib/corelib/parser/qmljslexer.cpp
index 931704339..db3004fc8 100644
--- a/src/lib/corelib/parser/qmljslexer.cpp
+++ b/src/lib/corelib/parser/qmljslexer.cpp
@@ -82,7 +82,7 @@ static QChar convertHex(QChar c1, QChar c2)
 
 static QChar convertUnicode(QChar c1, QChar c2, QChar c3, QChar c4)
 {
-    return {uchar((convertHex(c3.unicode()) << 4) + convertHex(c4.unicode())),
+    return QChar{uchar((convertHex(c3.unicode()) << 4) + convertHex(c4.unicode())),
                  uchar((convertHex(c1.unicode()) << 4) + convertHex(c2.unicode()))};
 }
 
diff --git a/src/lib/corelib/tools/clangclinfo.cpp b/src/lib/corelib/tools/clangclinfo.cpp
index 4e1022c28..0090b8f2c 100644
--- a/src/lib/corelib/tools/clangclinfo.cpp
+++ b/src/lib/corelib/tools/clangclinfo.cpp
@@ -102,8 +102,7 @@ ClangClInfo ClangClInfo::fromCompilerFilePath(const QString &path, Logger &logge
         return {};
     }
 
-    const auto toolchainInstallPath = getToolchainInstallPath(path);
-    return {toolchainInstallPath, vcvarsallPath};
+    return {getToolchainInstallPath(QFileInfo(path)), vcvarsallPath};
 }
 
 std::vector<ClangClInfo> ClangClInfo::installedCompilers(
@@ -151,7 +150,7 @@ std::vector<ClangClInfo> ClangClInfo::installedCompilers(
     result.reserve(compilerPaths.size() + msvcs.size());
 
     for (const auto &path: compilerPaths)
-        result.push_back({getToolchainInstallPath(path), vcvarsallPath});
+        result.push_back({getToolchainInstallPath(QFileInfo(path)), vcvarsallPath});
 
     // If we didn't find custom LLVM installation, try to find if it's installed with Visual Studio
     for (const auto &msvc : msvcs) {
@@ -165,7 +164,7 @@ std::vector<ClangClInfo> ClangClInfo::installedCompilers(
                                 .arg(msvc.installDir);
             }
 
-            result.push_back({getToolchainInstallPath(compilerPath), vcvarsallPath});
+            result.push_back({getToolchainInstallPath(QFileInfo(compilerPath)), vcvarsallPath});
         }
     }
 
diff --git a/src/lib/corelib/tools/launcherinterface.cpp b/src/lib/corelib/tools/launcherinterface.cpp
index d2cdf44df..cd877c154 100644
--- a/src/lib/corelib/tools/launcherinterface.cpp
+++ b/src/lib/corelib/tools/launcherinterface.cpp
@@ -61,11 +61,23 @@ namespace Internal {
 class LauncherProcess : public QProcess
 {
 public:
-    LauncherProcess(QObject *parent) : QProcess(parent) { }
+    LauncherProcess(QObject *parent) : QProcess(parent)
+    {
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0) && defined(Q_OS_UNIX)
+        setChildProcessModifier([this] { setupChildProcess_impl(); });
+#endif
+    }
 
 private:
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     void setupChildProcess() override
     {
+        setupChildProcess_impl();
+    }
+#endif
+
+    void setupChildProcess_impl()
+    {
 #ifdef Q_OS_UNIX
         const auto pid = static_cast<pid_t>(processId());
         setpgid(pid, pid);
diff --git a/src/lib/corelib/tools/persistence.h b/src/lib/corelib/tools/persistence.h
index b0fed9f68..7e3f3a11f 100644
--- a/src/lib/corelib/tools/persistence.h
+++ b/src/lib/corelib/tools/persistence.h
@@ -50,6 +50,7 @@
 #include <QtCore/qprocess.h>
 #include <QtCore/qregularexpression.h>
 #include <QtCore/qstring.h>
+#include <QtCore/qstringlist.h>
 #include <QtCore/qvariant.h>
 
 #include <memory>
@@ -467,6 +468,7 @@ template<typename T> struct PPHelper<QFlags<T>>
 
 template<typename T> struct IsSimpleContainer : std::false_type { };
 template<typename T> struct IsSimpleContainer<QList<T>> : std::true_type { };
+template<> struct IsSimpleContainer<QStringList> : std::false_type { };
 template<typename T> struct IsSimpleContainer<std::vector<T>> : std::true_type { };
 
 template<typename T> struct PPHelper<T, std::enable_if_t<IsSimpleContainer<T>::value>>
diff --git a/src/plugins/generator/visualstudio/msbuildtargetproject.cpp b/src/plugins/generator/visualstudio/msbuildtargetproject.cpp
index bcd654061..33ce9d9ae 100644
--- a/src/plugins/generator/visualstudio/msbuildtargetproject.cpp
+++ b/src/plugins/generator/visualstudio/msbuildtargetproject.cpp
@@ -92,7 +92,7 @@ const Internal::VisualStudioVersionInfo &MSBuildTargetProject::versionInfo() con
 
 QUuid MSBuildTargetProject::guid() const
 {
-    return {d->projectGuidProperty->value().toString()};
+    return QUuid{d->projectGuidProperty->value().toString()};
 }
 
 void MSBuildTargetProject::setGuid(const QUuid &guid)