Qt 5.5 compatibility #ifdef

Signed-off-by: István Váradi <ivaradi@varadiistvan.hu>

diff --git a/src/libsync/syncengine.cpp b/src/libsync/syncengine.cpp
index 63626c30ad15f5a657f9512f736f9ce4202bc5ce..91be03ebb8612cc33514f45f26dca92d123f5bab 100644 (file)
--- a/src/libsync/syncengine.cpp
+++ b/src/libsync/syncengine.cpp
@@ -326,6 +326,11 @@ void SyncEngine::deleteStaleErrorBlacklistEntries(const SyncFileItemVector &sync
     _journal->deleteStaleErrorBlacklistEntries(blacklist_file_paths);
 }
 
+#if (QT_VERSION < 0x050600)
+template <typename T>
+constexpr typename std::add_const<T>::type &qAsConst(T &t) noexcept { return t; }
+#endif
+
 void SyncEngine::conflictRecordMaintenance()
 {
     // Remove stale conflict entries from the database