Default check for more libraries in CURL_CHECK_LIBS_LDAP,

dnl -------------------------------------------------

dnl Check for libraries needed for LDAP support,

dnl and prepended to LIBS any needed libraries.

dnl This macro can take an optional parameter with a

dnl white space separated list of libraries to check

dnl before the default ones.

AC_DEFUN([CURL_CHECK_LIBS_LDAP], [

  AC_REQUIRE([CURL_CHECK_HEADER_LDAP])dnl

  #

  u_libs=""

  for x_lib in $1; do

    case "$x_lib" in

      -l*)

        l_lib="$x_lib"

        ;;

      *)

        l_lib="-l$x_lib"

        ;;

    esac

    if test -z "$u_libs"; then

      u_libs="$l_lib"

    else

      u_libs="$u_libs $l_lib"

    fi

  done

  #

  AC_MSG_CHECKING([for LDAP libraries])

  #

  curl_cv_save_LIBS=$LIBS

  curl_cv_ldap_LIBS="unknown"

  #

  for x_nlibs in '' '-lldap' '-llber -lldap' '-lldap -llber'; do

  for x_nlibs in "$u_libs" \

    '' \

    '-lldap' \

    '-llber -lldap' \

    '-lldap -llber' \

    '-lldapssl -lldapx -lldapsdk' \

    '-lldapsdk -lldapx -lldapssl' ; do

    if test -z "$x_nlibs"; then

      LIBS="$curl_cv_save_LIBS"

    else