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--- a/src/qtgui/recoll.h
+++ b/src/qtgui/recoll.h
@@ -50,6 +50,10 @@
 {
     return std::string((const char *)qs.toUtf8());
 }
+inline std::string qs2u8s(const QString& qs)
+{
+    return std::string((const char *)qs.toUtf8());
+}
 inline QString u8s2qs(const std::string us)
 {
     return QString::fromUtf8(us.c_str());