File engrampa-gtk-3.20.patch of Package engrampa

--- a/configure.ac
+++ b/configure.ac
@@ -29,9 +29,9 @@ dnl it too, or it will never make it int
 dnl
 dnl ==========================================================================
 
-GLIB_REQUIRED=2.50.0
-GIO_REQUIRED=2.50.0
-GTK_REQUIRED=3.22.0
+GLIB_REQUIRED=2.48.0
+GIO_REQUIRED=2.48.0
+GTK_REQUIRED=3.20.0
 CAJA_REQUIRED=1.17.1
 JSON_GLIB_REQUIRED=0.14.0
 
--- a/src/fr-window.c
+++ b/src/fr-window.c
@@ -2253,7 +2253,11 @@ open_folder (GtkWindow  *parent,
 	if (folder == NULL)
 		return;
 
+#if GTK_CHECK_VERSION (3, 22, 0)
 	if (! gtk_show_uri_on_window (parent, folder, GDK_CURRENT_TIME, &error)) {
+#else
+	if (! gtk_show_uri (gtk_window_get_screen (parent), folder, GDK_CURRENT_TIME, &error)) {
+#endif
 		GtkWidget *d;
 		char      *utf8_name;
 		char      *message;
--- a/src/gtk-utils.c
+++ b/src/gtk-utils.c
@@ -731,7 +731,11 @@ show_help_dialog (GtkWindow  *parent,
 	GError *error = NULL;
 
 	uri = g_strconcat ("help:engrampa", section ? "/" : NULL, section, NULL);
+#if GTK_CHECK_VERSION (3, 22, 0)
 	if (! gtk_show_uri_on_window (parent, uri, GDK_CURRENT_TIME, &error)) {
+#else
+	if (! gtk_show_uri (gtk_window_get_screen (parent), uri, GDK_CURRENT_TIME, &error)) {
+#endif
 		GtkWidget *dialog;
 
 		dialog = _gtk_message_dialog_new (parent,