+--- ipset-6.38/configure.ac~ 2018-04-10 23:36:27.000000000 +0200
++++ ipset-6.38/configure.ac 2018-06-18 20:33:55.197510866 +0200
+@@ -345,7 +345,7 @@
+
+ AC_MSG_CHECKING([kernel source for id in struct pernet_operations])
+ if test -f $ksourcedir/include/net/net_namespace.h && \
+- $AWK '/struct pernet_operations/ {for(i=1; i<=6; i++) {getline; print}}' $ksourcedir/include/net/net_namespace.h | $GREP -q 'int \*id;'; then
++ $AWK '/struct pernet_operations/ {for(i=1; i<=26; i++) {getline; print}}' $ksourcedir/include/net/net_namespace.h | $GREP -q 'int \*id;'; then
+ AC_MSG_RESULT(yes)
+ AC_SUBST(HAVE_NET_OPS_ID, define)
+ else