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Open Menu /external/bsd/unbound/dist/dnstap/dnstap.m4 
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# dnstap.m4

# dt_DNSTAP(default_dnstap_socket_path, [action-if-true], [action-if-false])
# --------------------------------------------------------------------------
# Check for required dnstap libraries and add dnstap configure args.
AC_DEFUN([dt_DNSTAP],
[
  AC_ARG_ENABLE([dnstap],
    AS_HELP_STRING([--enable-dnstap],
                   [Enable dnstap support (requires fstrm, protobuf-c)]),
    [opt_dnstap=$enableval], [opt_dnstap=no])

  AC_ARG_WITH([dnstap-socket-path],
    AS_HELP_STRING([--with-dnstap-socket-path=pathname],
                   [set default dnstap socket path]),
    [opt_dnstap_socket_path=$withval], [opt_dnstap_socket_path="$1"])

  if test "x$opt_dnstap" != "xno"; then
    AC_PATH_PROG([PROTOC_C], [protoc-c])
    if test -z "$PROTOC_C"; then
      AC_MSG_ERROR([The protoc-c program was not found. Please install protobuf-c!])
    fi
    AC_ARG_WITH([protobuf-c], AC_HELP_STRING([--with-protobuf-c=path],
    	[Path where protobuf-c is installed, for dnstap]), [
	  # workaround for protobuf-c includes at old dir before protobuf-c-1.0.0
	  if test -f $withval/include/google/protobuf-c/protobuf-c.h; then
	    CFLAGS="$CFLAGS -I$withval/include/google"
	  else
	    CFLAGS="$CFLAGS -I$withval/include"
	  fi
	  LDFLAGS="$LDFLAGS -L$withval/lib"
	], [
	  # workaround for protobuf-c includes at old dir before protobuf-c-1.0.0
	  if test -f /usr/include/google/protobuf-c/protobuf-c.h; then
	    CFLAGS="$CFLAGS -I/usr/include/google"
	  else
	    if test -f /usr/local/include/google/protobuf-c/protobuf-c.h; then
	      CFLAGS="$CFLAGS -I/usr/local/include/google"
	      LDFLAGS="$LDFLAGS -L/usr/local/lib"
	    fi
	  fi
    ])
    AC_ARG_WITH([libfstrm], AC_HELP_STRING([--with-libfstrm=path],
    	[Path where libfstrm is installed, for dnstap]), [
	CFLAGS="$CFLAGS -I$withval/include"
	LDFLAGS="$LDFLAGS -L$withval/lib"
    ])
    AC_SEARCH_LIBS([fstrm_iothr_init], [fstrm], [],
      AC_MSG_ERROR([The fstrm library was not found. Please install fstrm!]))
    AC_SEARCH_LIBS([protobuf_c_message_pack], [protobuf-c], [],
      AC_MSG_ERROR([The protobuf-c library was not found. Please install protobuf-c!]))
    $2
  else
    $3
  fi
])