--- firewalld-0.7.1.ebuild	2019-11-25 14:44:31.237798632 +0200
+++ firewalld-0.7.1-r1.ebuild	2019-11-25 14:42:32.518302898 +0200
@@ -39,7 +39,18 @@
 RESTRICT="test" # bug 650760
 
 pkg_setup() {
-	local CONFIG_CHECK="~NF_CONNTRACK ~NF_CONNTRACK_IPV4 ~NF_CONNTRACK_IPV6 ~NETFILTER_XT_MATCH_CONNTRACK"
+	local CONFIG_CHECK="~NF_CONNTRACK ~NETFILTER_XT_MATCH_CONNTRACK"
+
+	# kernel >= 4.19 has unified NF_CONNTRACK module, bug 692944
+	if kernel_is -lt 4 19; then
+		if use ipv4 || use lite4; then
+			CONFIG_CHECK="${CONFIG_CHECK} ~NF_CONNTRACK_IPV4"
+		fi
+		if use ipv6 || use lite6; then
+			CONFIG_CHECK="${CONFIG_CHECK} ~NF_CONNTRACK_IPV6"
+		fi
+	fi
+
 	linux-info_pkg_setup
 }