We just fill LIBWRAP_PATH with junk so it passes the rest of the tests

diff -up gdm-2.18.4/configure.ac.tcp-wrappers gdm-2.18.4/configure.ac
--- gdm-2.18.4/configure.ac.tcp-wrappers	2007-11-06 17:45:44.000000000 -0500
+++ gdm-2.18.4/configure.ac	2007-11-06 17:45:51.000000000 -0500
@@ -546,7 +546,7 @@ if test x$with_tcp_wrappers = xno ; then
 	echo "TCP wrappers disabled"
 else
   AC_MSG_CHECKING([whether to use TCP wrappers])
-  LIBWRAP_PATH=""
+  LIBWRAP_PATH="-lwrap"
   case "$host" in
     *-*-solaris*)
 	if test -f /usr/sfw/lib/libwrap.so; then
diff -up gdm-2.18.4/configure.tcp-wrappers gdm-2.18.4/configure
--- gdm-2.18.4/configure.tcp-wrappers	2007-07-30 16:10:54.000000000 -0400
+++ gdm-2.18.4/configure	2007-11-06 17:45:13.000000000 -0500
@@ -29409,7 +29409,7 @@ if test x$with_tcp_wrappers = xno ; then
 else
   { echo "$as_me:$LINENO: checking whether to use TCP wrappers" >&5
 echo $ECHO_N "checking whether to use TCP wrappers... $ECHO_C" >&6; }
-  LIBWRAP_PATH=""
+  LIBWRAP_PATH="-lwrap"
   case "$host" in
     *-*-solaris*)
 	if test -f /usr/sfw/lib/libwrap.so; then