--- kernel.eselect.old  2013-03-04 21:39:44.749412387 +0100
+++ kernel.eselect      2013-03-04 21:41:51.557408534 +0100
@@ -29,7 +29,7 @@
 find_targets() {
        local f
        for f in "${EROOT}"/usr/src/linux-[[:digit:]]*; do
-               [[ -d ${f} ]] && basename "${f}"
+               [[ -e ${f}/Makefile ]] && basename "${f}"
        done | sort_kernel_versions
 }
 
@@ -49,9 +49,9 @@
 
        if [[ -z ${target} ]]; then
                die -q "Target \"$1\" doesn't appear to be valid!"
-       elif [[ -d ${EROOT}/usr/src/${target} ]]; then
+       elif [[ -e ${EROOT}/usr/src/${target}/Makefile ]]; then
                ln -s "${target}" "${EROOT}/usr/src/linux"
-       elif [[ -d ${EROOT}/usr/src/linux-${target} ]]; then
+       elif [[ -e ${EROOT}/usr/src/linux-${target}/Makefile ]]; then
                ln -s "linux-${target}" "${EROOT}/usr/src/linux"
        else
                die -q "Target \"$1\" doesn't appear to be valid!"
@@ -66,7 +66,7 @@
 
 do_show() {
        write_list_start "Current kernel symlink:"
-       if [[ -L ${EROOT}/usr/src/linux ]]; then
+       if [[ -L ${EROOT}/usr/src/linux ]] && [[ -e ${EROOT}/usr/src/linux/Makefile ]]; then
                local kernel=$(canonicalise "${EROOT}/usr/src/linux")
                write_kv_list_entry "${kernel%/}" ""
        else