Index: linux-2.6.33/usr/Kconfig
===================================================================
--- linux-2.6.33.orig/usr/Kconfig	2010-03-12 15:01:06.000000000 +0100
+++ linux-2.6.33/usr/Kconfig	2010-03-12 15:01:15.000000000 +0100
@@ -75,7 +75,7 @@
 config RD_LZO
 	bool "Support initial ramdisks compressed using LZO" if EMBEDDED
 	default !EMBEDDED
-	depends on BLK_DEV_INITRD
+	depends on BLK_DEV_INITRD && HAVE_KERNEL_LZO
 	select DECOMPRESS_LZO
 	help
 	  Support loading of a LZO encoded initial ramdisk or cpio buffer