-# klibc and debug
-make clean EXTRAS="$EXTRAS" >/dev/null
-make all -j4 $MAKEOPTS USE_KLIBC=true DEBUG=true EXTRAS="$EXTRAS" KERNEL_DIR="$KERNEL_DIR" || exit
-echo -e "\n\n"
+# klibc build
+if [ -n "$KLCC" -a -e "$KLCC" ]; then
+ echo KLCC: "$KLCC"
+ make clean EXTRAS="$EXTRAS" >/dev/null
+ make all -j4 $MAKEOPTS USE_KLIBC=true DEBUG=true EXTRAS="$EXTRAS" KLCC="$KLCC" || exit
+ echo -e "\n\n"
+fi