AC_LIBOBJ vs LIBOBJS w/ backward-compatibility?

[Pekka Savola]

Hi,

I've a configure.in file which uses LIBOBJS which I can port to use
AC_LIBOBJ just fine.

However, there is no form which could be made to work on both autoconf
2.13 and autoconf >= 2.53: AC_LIBOBJ is not supported in the 
former, and LIBOBJS fails in the latter.

Is there a way to move to AC_LIBOBJ in a backward-compatible manner?
For example, is there a nice conditional macro definition for AC_LIBOBJ   
that could be applied as necessary (I don't think so), or some other
mechanism?

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings