macros/zeroconf.m4

   1 dnl Check for optional Zeroconf support
   2
   3 AC_DEFUN([AC_NETATALK_ZEROCONF], [
   4         ZEROCONF_LIBS=""
   5         ZEROCONF_CFLAGS=""
   6         found_zeroconf=no
   7         zeroconf_dir=""
   8
   9         AC_ARG_ENABLE(zeroconf,
  10                 [  --enable-zeroconf[[=DIR]]   enable Zeroconf support [[auto]]],
  11                 [zeroconf=$enableval],
  12                 [zeroconf=try]
  13         )
  14
  15     dnl make sure atalk_libname is defined beforehand
  16     [[ -n "$atalk_libname" ]] || AC_MSG_ERROR([internal error, atalk_libname undefined])
  17
  18         if test "x$zeroconf" != "xno"; then
  19                 savedcppflags="$CPPFLAGS"
  20                 savedldflags="$LDFLAGS"
  21
  22                 if test "x$zeroconf" = "xyes" -o "x$zeroconf" = "xtry"; then
  23                         zeroconf_dir="/usr"
  24                 else
  25                         zeroconf_dir="$zeroconf"
  26                 fi
  27
  28         # mDNS support using mDNSResponder
  29         AC_CHECK_HEADER(
  30             dns_sd.h,
  31             AC_CHECK_LIB(
  32                 dns_sd,
  33                 DNSServiceRegister,
  34                 AC_DEFINE(USE_ZEROCONF, 1, [Use DNS-SD registration]))
  35         )
  36
  37         if test "$ac_cv_lib_dns_sd_DNSServiceRegister" = yes; then
  38             ZEROCONF_LIBS="-ldns_sd"
  39             AC_DEFINE(HAVE_MDNS, 1, [Use mDNSRespnder/DNS-SD registration])
  40             found_zeroconf=yes
  41         fi
  42
  43         # mDNS support using Avahi
  44         if test x"$found_zeroconf" != x"yes" ; then
  45             AC_CHECK_HEADER(
  46                 avahi-client/client.h,
  47                 AC_CHECK_LIB(
  48                     avahi-client,
  49                     avahi_client_new,
  50                     AC_DEFINE(USE_ZEROCONF, 1, [Use DNS-SD registration]))
  51             )
  52
  53             case "$ac_cv_lib_avahi_client_avahi_client_new" in
  54             yes)
  55                 PKG_CHECK_MODULES(AVAHI, [ avahi-client >= 0.6 ])
  56                 PKG_CHECK_MODULES(AVAHI_TPOLL, [ avahi-client >= 0.6.4 ],
  57                     [AC_DEFINE(HAVE_AVAHI_THREADED_POLL, 1, [Uses Avahis threaded poll implementation])],
  58                     [AC_MSG_WARN(This Avahi implementation is not supporting threaded poll objects. Maybe this is not what you want.)])
  59                 ZEROCONF_LIBS="$AVAHI_LIBS"
  60                 ZEROCONF_CFLAGS="$AVAHI_CFLAGS"
  61                 AC_DEFINE(HAVE_AVAHI, 1, [Use Avahi/DNS-SD registration])
  62                 found_zeroconf=yes
  63                 ;;
  64             esac
  65                 CPPFLAGS="$savedcppflags"
  66                     LDFLAGS="$savedldflags"
  67         fi
  68         fi
  69
  70         netatalk_cv_zeroconf=no
  71         AC_MSG_CHECKING([whether to enable Zerconf support])
  72         if test "x$found_zeroconf" = "xyes"; then
  73                 AC_MSG_RESULT([yes])
  74                 AC_DEFINE(USE_ZEROCONF, 1, [Define to enable Zeroconf support])
  75                 netatalk_cv_zeroconf=yes
  76         else
  77                 AC_MSG_RESULT([no])
  78                 if test "x$zeroconf" != "xno" -a "x$zeroconf" != "xtry"; then
  79                         AC_MSG_ERROR([Zeroconf installation not found])
  80                 fi
  81         fi
  82
  83         LIB_REMOVE_USR_LIB(ZEROCONF_LIBS)
  84         CFLAGS_REMOVE_USR_INCLUDE(ZEROCONF_CFLAGS)
  85         AC_SUBST(ZEROCONF_LIBS)
  86         AC_SUBST(ZEROCONF_CFLAGS)
  87 ])