AC_CHECK_PROG([XMLTO],[xmlto],[yes],[])
AM_CONDITIONAL([HAS_XMLTO], [test x$XMLTO = xyes])
+AC_PROG_SED
+
dnl Checks for libraries.
AC_CHECK_LIB(socket,socket)
GRC_PMT
GRC_MBLOCK dnl this must come after GRC_PMT
GRC_USRP
+GRC_USRP2
GRC_GR_USRP dnl this must come after GRC_USRP
+GRC_GR_USRP2
GRC_GR_GCELL dnl this must come after GRC_GCELL and GRC_GNURADIO_CORE
GRC_GR_MSDD6000
GRC_GR_AUDIO_ALSA