diff --git a/src/corelib/io/qsettings.cpp b/src/corelib/io/qsettings.cpp
index 8c67d97afa4..e12da68671d 100644
--- a/src/corelib/io/qsettings.cpp
+++ b/src/corelib/io/qsettings.cpp
@@ -1460,7 +1460,7 @@ void QConfFileSettingsPrivate::syncConfFile(int confFileNo)
         ensureAllSectionsParsed(confFile);
         ParsedSettingsMap mergedKeys = confFile->mergedKeyMap();
 
-#ifndef QT_BOOTSTRAPPED
+#if !defined(QT_BOOTSTRAPPED) && QT_CONFIG(temporaryfile)
         QSaveFile sf(confFile->name);
 #else
         QFile sf(confFile->name);
@@ -1488,7 +1488,7 @@ void QConfFileSettingsPrivate::syncConfFile(int confFileNo)
             ok = writeFunc(sf, tempOriginalKeys);
         }
 
-#ifndef QT_BOOTSTRAPPED
+#if !defined(QT_BOOTSTRAPPED) && QT_CONFIG(temporaryfile)
         if (ok)
             ok = sf.commit();
 #endif
diff --git a/src/plugins/platforminputcontexts/compose/generator/qtablegenerator.cpp b/src/plugins/platforminputcontexts/compose/generator/qtablegenerator.cpp
index bd259924579..ca9f7af127e 100644
--- a/src/plugins/platforminputcontexts/compose/generator/qtablegenerator.cpp
+++ b/src/plugins/platforminputcontexts/compose/generator/qtablegenerator.cpp
@@ -194,8 +194,11 @@ static QVector<QComposeTableElement> loadCache(const QComposeCacheFileHeader &co
 static bool saveCache(const QComposeCacheFileHeader &info, const QVector<QComposeTableElement> &vec)
 {
     const QString filePath = getCacheFilePath();
+#if QT_CONFIG(temporaryfile)
     QSaveFile outputFile(filePath);
-
+#else
+    QFile outputFile(filePath);
+#endif
     if (!outputFile.open(QIODevice::WriteOnly))
         return false;
     const char *data = reinterpret_cast<const char*>(&info);
@@ -207,7 +210,11 @@ static bool saveCache(const QComposeCacheFileHeader &info, const QVector<QCompos
 
     if (outputFile.write(data, size) != size)
         return false;
+#if QT_CONFIG(temporaryfile)
     return outputFile.commit();
+#else
+    return true;
+#endif
 }
 
 TableGenerator::TableGenerator() : m_state(NoErrors),
diff --git a/src/testlib/qtestcase.cpp b/src/testlib/qtestcase.cpp
index 7b76f1f9707..31ffb36690d 100644
--- a/src/testlib/qtestcase.cpp
+++ b/src/testlib/qtestcase.cpp
@@ -1914,6 +1914,7 @@ static inline bool isWindowsBuildDirectory(const QString &dirName)
 }
 #endif
 
+#if QT_CONFIG(temporaryfile)
 /*!
     Extracts a directory from resources to disk. The content is extracted
     recursively to a temporary folder. The extracted content is removed
@@ -1974,6 +1975,7 @@ QSharedPointer<QTemporaryDir> QTest::qExtractTestData(const QString &dirName)
 
       return result;
 }
+#endif // QT_CONFIG(temporaryfile)
 
 /*! \internal
  */
diff --git a/src/testlib/qtestcase.h b/src/testlib/qtestcase.h
index 4c226830e94..57e04866864 100644
--- a/src/testlib/qtestcase.h
+++ b/src/testlib/qtestcase.h
@@ -283,7 +283,9 @@ namespace QTest
     Q_TESTLIB_EXPORT void ignoreMessage(QtMsgType type, const QRegularExpression &messagePattern);
 #endif
 
+#if QT_CONFIG(temporaryfile)
     Q_TESTLIB_EXPORT QSharedPointer<QTemporaryDir> qExtractTestData(const QString &dirName);
+#endif
     Q_TESTLIB_EXPORT QString qFindTestData(const char* basepath, const char* file = Q_NULLPTR, int line = 0, const char* builddir = Q_NULLPTR);
     Q_TESTLIB_EXPORT QString qFindTestData(const QString& basepath, const char* file = Q_NULLPTR, int line = 0, const char* builddir = Q_NULLPTR);