if test "x${enable_python_binding:-yes}" = xyes; then
AX_PKG_SWIG($swig_version, [], [ AC_MSG_ERROR([SWIG $swig_version or newer is needed]) ])
if test "x${enable_python_binding:-yes}" = xyes; then
AX_PKG_SWIG($swig_version, [], [ AC_MSG_ERROR([SWIG $swig_version or newer is needed]) ])