AC_MSG_CHECKING([kernel source for netlink extended ACK])
if test -f $ksourcedir/include/linux/netlink.h && \
- $AWK '/^extern void netlink_ack\(/,/\)/' $ksourcedir/include/linux/netlink.h | $GREP -q 'const struct netlink_ext_ack'; then
-+ $AWK '/^void netlink_ack\(/,/\)/' $ksourcedir/include/linux/netlink.h | $GREP -q 'const struct netlink_ext_ack'; then
++ $AWK '/void netlink_ack\(/,/\)/' $ksourcedir/include/linux/netlink.h | $GREP -q 'const struct netlink_ext_ack'; then
AC_MSG_RESULT(yes)
AC_SUBST(HAVE_NETLINK_EXTENDED_ACK, define)
else