AC_CHECK_HEADERS(net/if.h, [net_if_found=1], [net_if_found=0])
AC_CHECK_HEADERS(net/pfvar.h, [net_pfvar_found=1], [net_pfvar_found=0])
-AC_CHECK_HEADERS(linux/netfilter_ipv4, [linux_netfilter_ipv4=1],
- [linux_netfilter_ipv4=0])
+AC_CHECK_HEADERS(linux/netfilter_ipv4.h,
+ [linux_netfilter_ipv4=1], [linux_netfilter_ipv4=0])
AC_CHECK_FUNCS(gettimeofday ftime socketpair uname inet_aton strptime getrlimit setrlimit strlcat strlcpy strtoull getpwnam getpwuid ftello getaddrinfo localtime_r gmtime_r event_get_version event_get_method event_set_log_callback memmem mmap strtok_r)