--- xpilot-ng-4.7.3/configure.ac~	2010-03-06 02:20:30.000000000 +0100
+++ xpilot-ng-4.7.3/configure.ac	2016-02-01 14:29:21.981049477 +0100
@@ -325,7 +325,8 @@ if test x$enable_sound = xyes; then
 		alut, 
 		main, 
 		[have_alut=yes],
-		[])
+		[],
+		-lopenal)
 	if test x$have_openal = xyes; then
 		if test x$have_alut = xyes; then
 			have_sound=yes