+# The system wide version failed for some reason. Check if we have the required
+# headers to build the shipped version.
+if test "x$with_libiptc" = "xyes" && test "x$with_own_libiptc" = "xyes"
+then
+ AC_CHECK_HEADERS(linux/netfilter_ipv4/ip_tables.h linux/netfilter_ipv6/ip6_tables.h linux/netfilter/x_tables.h, [],
+ [
+ with_libiptc="no (Linux iptables headers not found)"
+ with_own_libiptc="no"
+ ],
+ [
+#include "$srcdir/src/owniptc/ipt_kernel_headers.h"
+ ])
+fi