Fix for missing definitions on some Hardened configurations Gentoo bug: https://bugs.gentoo.org/show_bug.cgi?id=437292 diff -Naur quagga-0.99.16.orig/zebra/ipforward_sysctl.c quagga-0.99.16/zebra/ipforward_sysctl.c --- quagga-0.99.16.orig/zebra/ipforward_sysctl.c 2010-03-11 12:11:32.000000000 -0500 +++ quagga-0.99.16/zebra/ipforward_sysctl.c 2010-03-11 12:11:39.000000000 -0500 @@ -31,6 +31,15 @@ #define MIB_SIZ 4 +/* Fix for recent (2.6.14) kernel headers */ +#ifndef IPCTL_FORWARDING + #define IPCTL_FORWARDING NET_IPV4_FORWARD +#endif + +#ifndef IP6CTL_FORWARDING + #define IP6CTL_FORWARDING NET_IPV6_FORWARDING +#endif + extern struct zebra_privs_t zserv_privs; /* IPv4 forwarding control MIB. */