Merge branch 'dev' into std-mutex

rtgui/thumbimageupdater.cc

@@ -14,7 +14,7 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
+ *  along with RawTherapee.  If not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <atomic>
@@ -23,9 +23,11 @@
 #include <gtkmm.h>
 
 #include "thumbimageupdater.h"
+#include "thumbbrowserentrybase.h"
 
 #include "guiutils.h"
 #include "threadutils.h"
+#include "thumbnail.h"
 
 #include "../rtengine/procparams.h"