--- qsampler/trunk/configure.ac	2019/06/05 15:09:11	3515
+++ qsampler/trunk/configure.ac	2019/06/18 07:49:48	3516
@@ -183,6 +183,12 @@
 # A common error message:
 ac_errmsg="not found in current PATH. Maybe QT development environment isn't available."
 
+# Check for qtchooser availability.
+AC_PATH_TOOL(ac_qtchooser, qtchooser, [no], $ac_path)
+if test -x $ac_qtchooser; then
+   export QT_SELECT=5
+fi
+
 # Check for proper qmake path/version alternatives.
 AC_PATH_TOOL(ac_qmake, qmake, [no], $ac_path)
 if test "x$ac_qmake" = "xno"; then