--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libgui/src/qt-utils.h	Mon Jul 13 14:57:22 2020 -0400
@@ -0,0 +1,47 @@
+////////////////////////////////////////////////////////////////////////
+//
+// Copyright (C) 2020 The Octave Project Developers
+//
+// See the file COPYRIGHT.md in the top-level directory of this
+// distribution or <https://octave.org/copyright/>.
+//
+// This file is part of Octave.
+//
+// Octave is free software: you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Octave is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Octave; see the file COPYING.  If not, see
+// <https://www.gnu.org/licenses/>.
+//
+////////////////////////////////////////////////////////////////////////
+
+#if ! defined (octave_qt_utils_h)
+#define octave_qt_utils_h 1
+
+#include <list>
+
+#include <QList>
+
+namespace octave
+{
+  template <typename T>
+  QList<T>
+  std_list_to_qt_list (const std::list<T>& lst)
+  {
+#if defined (HAVE_QLIST_ITERATOR_CONSTRUCTOR)
+    return QList<T> (lst.begin (), lst.end ());
+#else
+    return QList<T>::fromStdList (lst);
+#endif
+  }
+}
+
+#endif