AC_DEFUN([CMU_LIBWRAP], [
AC_REQUIRE([CMU_FIND_LIB_SUBDIR])
AC_REQUIRE([CMU_SOCKETS])
AC_ARG_WITH(libwrap,
[ --with-libwrap=DIR use libwrap (rooted in DIR) [yes] ],
with_libwrap=$withval, with_libwrap=yes)
if test "$with_libwrap" != no; then
if test -d "$with_libwrap"; then
CPPFLAGS="$CPPFLAGS -I${with_libwrap}/include"
LDFLAGS="$LDFLAGS -L${with_libwrap}/$CMU_LIB_SUBDIR"
fi
cmu_save_LIBS="$LIBS"
AC_CHECK_LIB(wrap, request_init, [
AC_CHECK_HEADER(tcpd.h,, with_libwrap=no)],
with_libwrap=no, ${LIB_SOCKET})
LIBS="$cmu_save_LIBS"
fi
AC_MSG_CHECKING(libwrap support)
AC_MSG_RESULT($with_libwrap)
LIB_WRAP=""
if test "$with_libwrap" != no; then
AC_DEFINE(HAVE_LIBWRAP,[],[Do we have TCP wrappers?])
LIB_WRAP="-lwrap"
AC_CHECK_LIB(nsl, yp_get_default_domain, LIB_WRAP="${LIB_WRAP} -lnsl")
fi
AC_SUBST(LIB_WRAP)
])