autoconf and makeinfo issues (doc/ref has problems) (RC?).

[Rob Browning]

I've nearly finished fixing the autoconf 2.53 issues in 1.6, but now
I've run in to a show-stopping makeinfo problem (is this a makeinfo
version issue?)

Running a make fails now, complaining of interconnection problems all
over our .texi files.  I commented out our version.texi include in
guile.texi and ran a full-blown C-u 8 texinfo-multiple-files-update,
and that made things somewhat better, but we're still missing a lot of
stuff that makeinfo now seems to be considering critical.  Along with
a lot of warnings that Info can't handle ":" in index entries, I get
the following actual errors.

  ./preface.texi:73: `Manual Layout' has no Up field.
  ./preface.texi:151: `Manual Conventions' has no Up field.
  ./intro.texi:53: `Whirlwind Tour' has no Up field.
  ./intro.texi:855: `Obtaining and Installing Guile' has no Up field.
  ./intro.texi:958: `Reporting Bugs' has no Up field.
  ./guile.texi:189: Node `Top' lacks menu item for `Programming Intro' despite 
being its Up target.
  ./guile.texi:189: Node `Top' lacks menu item for `Reference Intro' despite 
being its Up target.
  ./scheme-memory.texi:207: `Objects' has no Up field.
  ./repl-modules.texi:97: `Value History' has no Up field.
  ./misc-modules.texi:60: `Formatted Output' has no Up field.
  ./misc-modules.texi:291: `Rx Regexps' has no Up field.
  ./indices.texi:11: `Procedure Index' has no Up field.
  ./indices.texi:26: `Variable Index' has no Up field.
  ./indices.texi:42: `Type Index' has no Up field.
  ./scheme-memory.texi:207: warning: unreferenced node `Objects'.
  ./repl-modules.texi:97: warning: unreferenced node `Value History'.
  makeinfo: Removing output file 
`/home/rlb/dev/guile/core-1.5/doc/ref/guile.info' due to errors; use --force to 
preserve.

-- 
Rob Browning
rlb @defaultvalue.org, @linuxdevel.com, and @debian.org
Previously @cs.utexas.edu
GPG=1C58 8B2C FB5E 3F64 EA5C  64AE 78FE E5FE F0CB A0AD