--- orig/toolchain-funcs.eclass	2012-09-27 20:01:14.000000000 +0000
+++ toolchain-funcs.eclass	2012-09-28 09:33:31.784739859 +0000
@@ -357,8 +357,10 @@ ninj() { [[ ${type} == "kern" ]] && echo
 	local host=$2
 	[[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
 
-	local KV=${KV:-${KV_FULL}}
-	[[ -z ${KV} ]] && die "toolchain-funcs.eclass: Kernel version could not be determined, please inherit kernel-2 or linux-info"
+	if [[ ${type} == "kern" ]]; then
+		local KV=${KV:-${KV_FULL}}
+		[[ -z ${KV} ]] && die "toolchain-funcs.eclass: Kernel version could not be determined, please inherit kernel-2 or linux-info"
+	fi
 
 	case ${host} in
 		aarch64*)	ninj aarch64 arm;;