macros/zeroconf.m4

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