File sysconfig-ifup-dhcp-skip-dhcpv6-without-ipv6.bnc445686.diff of Package sysconfig

Index: scripts/ifup-dhcp
===================================================================
--- scripts/ifup-dhcp	(Revision 1811)
+++ scripts/ifup-dhcp	(Revision 1817)
@@ -185,6 +185,9 @@
 	stop)
 	;;
 	*)
+		HAVE_IPv6=yes
+		test -d /proc/sys/net/ipv6 || HAVE_IPv6=no
+
 		clients=0
 		bootprotos=(${BOOTPROTOS[@]})
 		BOOTPROTOS=()
@@ -220,6 +223,8 @@
 				esac
 			;;
 			(dhcp6)
+				[ "x$HAVE_IPv6" = xyes ] || DHCLIENT6=""
+
 				case "$DHCLIENT6" in
 				(dhcp6c)
 					if [ -x "$DHCLIENT6_BIN" ] ; then
@@ -236,8 +241,12 @@
 				;;
 				"")
 					if [ "x$explicit_dhcp6" = "xyes" ] ; then
-						print_mesg err_mesg "DHCP6 client is not available."
-						print_mesg err_mesg "      Please install 'dhcpv6' package'"
+						if [ "x$HAVE_IPv6" = xyes ] ; then
+							print_mesg err_mesg "DHCP6 client is not available."
+							print_mesg err_mesg "      Please install 'dhcpv6' package'"
+						else
+							print_mesg err_mesg "DHCP6 disabled - no IPv6 support"
+						fi
 					fi
 				;;
 				*)
@@ -252,6 +261,7 @@
 
 		# exit when not even one of the requested clients is installed
 		# or the a client was explicitely requested in bootproto
+		[ "x$HAVE_IPv6" = xyes ] && \
 		[ "x$explicit_dhcp6" = "xyes" -a "x$DHCLIENT6" = x ] && exit $R_ERROR
 		[ "x$explicit_dhcp4" = "xyes" -a "x$DHCLIENT"  = x ] && exit $R_ERROR
 		[ $clients -eq 0 ] && exit $R_ERROR