net-firewall/sanewall requires 'ip6tables' at configure stage, if net-firewall/iptables is built with USE="-ipv6" then the configure will fail (see attatched build.log). As ipv6 is not explicitly needed for the sanewall script (as it can configure either ipv4 or ipv6 firewalls ... or both) its currently a build time dependency and so the 'net-firewall/iptables[ipv6]' should be set (though I should probably bug upstream to make this optional). Reproducible: Always
Created attachment 359246 [details] sanewall-1.15-build.log
Fixed in 1.1.6.