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 Avahi
  29     AC_CHECK_HEADER(
  30         avahi-client/client.h,
  31         AC_CHECK_LIB(
  32            avahi-client,
  33            avahi_client_new,
  34            AC_DEFINE(USE_ZEROCONF, 1, [Use DNS-SD registration]))
  35     )
  36
  37     case "$ac_cv_lib_avahi_client_avahi_client_new" in
  38       yes)
  39       PKG_CHECK_MODULES(AVAHI, [ avahi-client >= 0.6 ])
  40       PKG_CHECK_MODULES(AVAHI_TPOLL, [ avahi-client >= 0.6.4 ],
  41         [AC_DEFINE(HAVE_AVAHI_THREADED_POLL, 1, [Uses Avahis threaded poll implementation])],
  42         [AC_MSG_WARN(This Avahi implementation is not supporting threaded poll objects. Maybe this is not what you want.)])
  43       ZEROCONF_LIBS="$AVAHI_LIBS"
  44       ZEROCONF_CFLAGS="$AVAHI_CFLAGS"
  45       AC_DEFINE(HAVE_AVAHI, 1, [Use Avahi/DNS-SD registration])
  46       found_zeroconf=yes
  47       ;;
  48     esac
  49
  50                 CPPFLAGS="$savedcppflags"
  51                 LDFLAGS="$savedldflags"
  52         fi
  53
  54         netatalk_cv_zeroconf=no
  55         AC_MSG_CHECKING([whether to enable Zerconf support])
  56         if test "x$found_zeroconf" = "xyes"; then
  57                 AC_MSG_RESULT([yes])
  58                 AC_DEFINE(USE_ZEROCONF, 1, [Define to enable Zeroconf support])
  59                 netatalk_cv_zeroconf=yes
  60         else
  61                 AC_MSG_RESULT([no])
  62                 if test "x$zeroconf" != "xno" -a "x$zeroconf" != "xtry"; then
  63                         AC_MSG_ERROR([Zeroconf installation not found])
  64                 fi
  65         fi
  66
  67         LIB_REMOVE_USR_LIB(ZEROCONF_LIBS)
  68         CFLAGS_REMOVE_USR_INCLUDE(ZEROCONF_CFLAGS)
  69         AC_SUBST(ZEROCONF_LIBS)
  70         AC_SUBST(ZEROCONF_CFLAGS)
  71 ])