autoconf 2.53 breaks guile-core 1.6 autogen.sh

[Neil W. Van Dyke]

Just FYI...

Autoconf 2.53 treats use of "LIBOBJS" as an error, preventing
"autogen.sh" of the 1.6 branch of package "guile-core" from running.

    % ./autogen.sh
    WARNING: Using auxiliary files such as `acconfig.h', `config.h.bot'
    WARNING: and `config.h.top', to define templates for `config.h.in'
    WARNING: is deprecated and discouraged.

    WARNING: Using the third argument of `AC_DEFINE' and
    WARNING: `AC_DEFINE_UNQUOTED' allows to define a template without
    WARNING: `acconfig.h':

    WARNING:   AC_DEFINE([NEED_MAIN], 1,
    WARNING:             [Define if a function `main' is needed.])

    WARNING: More sophisticated templates can also be produced, see the
    WARNING: documentation.
    configure.in:30: warning: do not use m4_patsubst: use patsubst or
                              m4_bpatsubst
    configure.in:689: warning: do not use m4_regexp: use regexp or m4_bregexp
    autoheader2.50: `libguile/scmconfig.h.in' is unchanged
    configure.in:135: error: do not use LIBOBJS directly, use AC_LIBOBJ
                             (see section `AC_LIBOBJ vs. LIBOBJS'

-- 
                                                        Neil W. Van Dyke
                                             http://www.neilvandyke.org/