> Yep, grepped my .config archive and its gone in 4.19 so the shorewall
> ebuild (at least) will need an update. Checked bugzilla?

Grepping .config will only work sometimes - If its enabled it will be
there, if not it "may or may not be"

My .config hasnt changed, other than from setting the new options via make oldconfig;

/usr/src/configs # grep CONFIG_NF_CONNTRACK_IP config-2018-10-29 config-2018-11-13
config-2018-10-29:CONFIG_NF_CONNTRACK_IPV4=y
config-2018-10-29:CONFIG_NF_CONNTRACK_IPV6=y

/usr/src/configs # head -n3 config-2018-10-29 config-2018-11-13
==> config-2018-10-29 <==
#
# Automatically generated file; DO NOT EDIT.
# Linux/x86 4.18.16-gentoo Kernel Configuration

==> config-2018-11-13 <==
#
# Automatically generated file; DO NOT EDIT.
# Linux/x86 4.19.0-gentoo Kernel Configuration
/usr/src/configs #