macros/tcp-wrappers.m4

   1 dnl $Id: tcp-wrappers.m4,v 1.4 2008-08-11 20:44:03 didg Exp $
   2
   3 AC_DEFUN([AC_NETATALK_TCP_WRAPPERS], [
   4         check=maybe
   5         AC_ARG_ENABLE(tcp-wrappers,
   6                 [  --disable-tcp-wrappers  disable TCP wrappers support],
   7                 [
   8                         if test "x$enableval" = "xno"; then
   9                                 wrapcheck=no
  10                         else
  11                                 wrapcheck=yes
  12                         fi
  13                 ]
  14         )
  15
  16         enable=no
  17         netatalk_cv_tcpwrap=no
  18         if test "x$wrapcheck" != "xno"; then
  19                 saved_LIBS=$LIBS
  20                 W_LIBS="-lwrap"
  21                 LIBS="$LIBS $W_LIBS"
  22                 AC_TRY_LINK([ int allow_severity = 0; int deny_severity = 0;]
  23                         ,[hosts_access();]
  24                         , netatalk_cv_tcpwrap=yes ,
  25                         [
  26                                 LIBS=$saved_LIBS
  27                                 W_LIBS="-lwrap -lnsl"
  28                                 LIBS="$LIBS $W_LIBS"
  29                                 AC_TRY_LINK([ int allow_severity = 0; int deny_severity = 0;]
  30                                         ,[hosts_access();]
  31                                         , netatalk_cv_tcpwrap=yes , netatalk_cv_tcpwrap=no)
  32                         ]
  33                         , netatalk_cv_tcpwrap=cross)
  34
  35                 LIBS=$saved_LIBS
  36         fi
  37
  38         AC_MSG_CHECKING([whether to enable the TCP wrappers])
  39         if test "x$netatalk_cv_tcpwrap" = "xyes"; then
  40                 AC_DEFINE(TCPWRAP, 1, [Define if TCP wrappers should be used])
  41                 WRAP_LIBS=$W_LIBS
  42                 AC_MSG_RESULT([yes])
  43         else
  44                 if test "x$wrapcheck" = "xyes"; then
  45                         AC_MSG_ERROR([libwrap not found])
  46                 else
  47                         AC_MSG_RESULT([no])
  48                 fi
  49         fi
  50
  51         AC_SUBST(WRAP_LIBS)
  52 ])