diff --git a/net-misc/dhcp/dhcp-4.4.2-r3.ebuild b/net-misc/dhcp/dhcp-4.4.2-r3.ebuild
index 6cad24e75195..b63bf6913b22 100644
--- a/net-misc/dhcp/dhcp-4.4.2-r3.ebuild
+++ b/net-misc/dhcp/dhcp-4.4.2-r3.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=7
 
-inherit systemd toolchain-funcs
+inherit systemd toolchain-funcs flag-o-matic
 
 MY_PV="${PV//_alpha/a}"
 MY_PV="${MY_PV//_beta/b}"
@@ -162,6 +162,11 @@ src_configure() {
 	#define _PATH_DHCRELAY6_PID  "${r}/dhcrelay6.pid"
 	EOF
 
+	# https://bugs.gentoo.org/720806
+	if use ppc || use arm || use hppa; then
+		append-libs -latomic
+	fi
+
 	local myeconfargs=(
 		--enable-paranoia
 		--enable-early-chroot
@@ -169,6 +174,7 @@ src_configure() {
 		$(use_enable ipv6 dhcpv6)
 		$(use_with ldap)
 		$(use ldap && use_with ssl ldapcrypto || echo --without-ldapcrypto)
+		LIBS="${LIBS}"
 	)
 	econf "${myeconfargs[@]}"