Milter-greylist

When I tried to run ./configure I kept getting the "Required libmilter
not found. Use --with-libmilter" error even when I supplied the
correct path.  So, I started looking through the config.log and found
that libmilter uses some stuff from ldap if you compile sendmail with
ladp.  So not knowing much about automake I just tweaked the configure
to include -lldap -llber in two places.  One so the configure would
work and one so the compile would work.  Something like this:

# Check for libmilter. For sendmail-8.12.1, -lsm is required too.
# This uses a gross hack on the second AC_CHECK_LIB first argument,
but using
# [-lsm] in the optionnal 5th argument does not seems to help at all.
echo "$as_me:$LINENO: checking for smfi_register in -lmilter" >&5
echo $ECHO_N "checking for smfi_register in -lmilter... $ECHO_C" >&6
if test "${ac_cv_lib_milter_smfi_register+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lmilter -lldap -llber $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */


And then:


echo "${ECHO_T}$ac_cv_lib_milter_smfi_register" >&6
if test $ac_cv_lib_milter_smfi_register = yes; then
  LIBS="$LIBS -lmilter -lldap -llber"

After that everything went well and except for when I try to use spf
it runs stable.  Hopefully you uber coders should be able to modify
the configure.ac appropriately so I don't have to learn automake.  The
spf problem probably has to do with the resolver or bind or something
like that since I am compiling this on some servers that have been in
service for many years and probably have very old and not thread safe
libraries.