Also, apply the following diffs to files in /usr/src/linux/net:

$ rcsdiff -p Config.in
===================================================================
RCS file: RCS/Config.in,v
retrieving revision 1.1
diff -p -r1.1 Config.in
*** Config.in   1996/08/04 20:05:53     1.1
--- Config.in   1996/08/04 20:15:24
*************** bool 'Kernel/User network link driver' C
*** 27,30 ****
--- 27,34 ----
  if [ "$CONFIG_NETLINK" = "y" ]; then
    bool 'Routing messages' CONFIG_RTNETLINK
  fi
+ tristate 'IP Security Protocol' CONFIG_IPSEC
+ if [ ! "$CONFIG_IPSEC" = "n" ]; then
+   source net/ipsec/Config.in
+ fi
  endmenu


$ rcsdiff -p Makefile
===================================================================
RCS file: RCS/Makefile,v
retrieving revision 1.1
diff -p -r1.1 Makefile
*** Makefile    1996/08/04 20:05:46     1.1
--- Makefile    1996/08/04 23:31:59
*************** else
*** 66,69 ****
--- 66,77 ----
    endif
  endif

+ ifeq ($(CONFIG_IPSEC),y)
+ SUB_DIRS += ipsec
+ else
+   ifeq ($(CONFIG_IPSEC),m)
+   MOD_SUB_DIRS += ipsec
+   endif
+ endif
+
  include $(TOPDIR)/Rules.make
