fixed makefile bug, include ipv6 stuff in experimental only if DO_IPV6 is set
diff --git a/Makefile b/Makefile
index 35f6f74..72726f6 100644
--- a/Makefile
+++ b/Makefile
@@ -32,12 +32,14 @@
 EXTRA_INSTALLS+=$(DESTDIR)$(BINDIR)/iptables $(DESTDIR)$(MANDIR)/man8/iptables.8
 
 # Still experimental.
-EXTRAS_EXP+=iptables-save iptables-restore ip6tables-save ip6tables-restore
-EXTRA_INSTALLS_EXP:=$(DESTDIR)$(BINDIR)/iptables-save $(DESTDIR)$(BINDIR)/iptables-restore $(DESTDIR)$(BINDIR)/ip6tables-save $(DESTDIR)$(BINDIR)/ip6tables-restore $(DESTDIR)$(MANDIR)/man8/iptables-restore.8 $(DESTDIR)$(MANDIR)/man8/iptables-save.8 $(DESTDIR)$(MANDIR)/man8/ip6tables-save.8 $(DESTDIR)$(MANDIR)/man8/ip6tables-restore.8
+EXTRAS_EXP+=iptables-save iptables-restore
+EXTRA_INSTALLS_EXP:=$(DESTDIR)$(BINDIR)/iptables-save $(DESTDIR)$(BINDIR)/iptables-restore $(DESTDIR)$(MANDIR)/man8/iptables-restore.8 $(DESTDIR)$(MANDIR)/man8/iptables-save.8
 
 ifdef DO_IPV6
 EXTRAS+=ip6tables ip6tables.o
 EXTRA_INSTALLS+=$(DESTDIR)$(BINDIR)/ip6tables
+EXTRAS_EXP+=ip6tables-save ip6tables-restore
+EXTRA_INSTALLS_EXP:=$(DESTDIR)$(BINDIR)/ip6tables-save $(DESTDIR)$(BINDIR)/ip6tables-restore $(DESTDIR)$(MANDIR)/man8/iptables-restore.8 $(DESTDIR)$(MANDIR)/man8/iptables-save.8 $(DESTDIR)$(MANDIR)/man8/ip6tables-save.8 $(DESTDIR)$(MANDIR)/man8/ip6tables-restore.8
 endif
 
 # Sparc64 hack