diff -Nurd -x'*~' ConsoleKit-0.3.0.orig/configure.ac ConsoleKit-0.3.0/configure.ac
--- ConsoleKit-0.3.0.orig/configure.ac	2008-07-30 20:35:53.000000000 -0400
+++ ConsoleKit-0.3.0/configure.ac	2008-12-03 01:51:42.000000000 -0500
@@ -190,6 +190,9 @@
         *-*-solaris*)
         CK_BACKEND="solaris"
         ;;
+	*)
+	AC_MSG_ERROR([No sysdeps back-end implemented for host $host])
+	;;
 esac
 
 AC_SUBST(KVM_LIBS)