No room for a new @write

[Akim Demaille]

What does this mean?

src/ace/doc % make dvi                                           nostromo 14:56
TEXINPUTS=../config/texinfo.tex:$TEXINPUTS \
  MAKEINFO='/bin/sh /home/lrde/prof/akim/src/ace/config/missing --run makeinfo 
--no-split -I .' texi2dvi autoconf.texi
This is TeX, Version 3.14159 (Web2C 7.3.1)
(/home/lrde/prof/akim/src/ace/doc/autoconf.texi
(/usr/share/texmf/tex/texinfo/texinfo.tex
Loading texinfo [version 2001-03-28.08]: Basics, pdf, fonts, page headings,
tables, conditionals, indexing, sectioning, toc, environments, defuns, macros,
cross references, (/usr/share/texmf/tex/plain/dvips/epsf.tex) localization,
and turning on texinfo input format.) (version.texi) [1] [2] [-1] [-2]
! No room for a new @write .
@address@hidden address@hidden @errmessage {No room for a new #3}
                                                  @fi 
@alloc@ address@hidden @count 1#1by@@ne @address@hidden #1#4#2
                                                  @allocationnumber 
address@hidden ...

@next ...er @newwrite @csname address@hidden 
                                                  @openout @csname #1indfile...
l.112 @defcodeindex fu
                      
? X
Output written on autoconf.dvi (4 pages, 1524 bytes).
Transcript written on autoconf.log.
/home/lrde/prof/akim/bin/texi2dvi: tex exited with bad status, quitting.
/home/lrde/prof/akim/bin/texi2dvi: see autoconf.log for errors.
make: *** [autoconf.dvi] Erreur 1


Lemme make a guess: too many indexes?

src/ace/doc % grep '@def.*index' autoconf.texi
@defcodeindex ev
@defcodeindex ov
@defcodeindex cv
@defcodeindex ac
@defcodeindex at
@defcodeindex ms
@defindex pr
@defcodeindex fu

???  Any way to avoid this?