backslash no longer works in indices

[Werner LEMBERG]

Processing the attached input file, we get an error; see the attached
log file.  This doesn't happen with older versions of texinfo.tex
(tested with 2009-08-14.15).

Is this expected behaviour or a bug?  I couldn't find something
related in the NEWS or ChangeLog files, so I assume the latter.


    Werner

\input texinfo @c -*- coding: utf-8; mode: texinfo; -*-
@setfilename Test
@settitle Test
@afourpaper

@macro funindex {TEXT}
@findex \TEXT\
@kindex \TEXT\
@c
@end macro

Some text.

@subheading Pitches

@funindex \relative
@funindex relative

Some other text.

@bye

texi2pdf TestCrash.texi
This is pdfTeX, Version 3.1415926-1.40.10 (TeX Live 2009/Debian)
entering extended mode
(./TestCrash.texi (/usr/share/texmf/tex/texinfo/texinfo.tex
Loading texinfo [version 2011-05-23.16]: pdf, fonts, markup, glyphs,
page headings, tables, conditionals, indexing, sectioning, toc, environments,
defuns, macros, cross references, insertions,
(/usr/share/texmf-texlive/tex/generic/epsf/epsf.tex
This is `epsf.tex' v2.7.3 <23 July 2005>
) localization, formatting, and turning on texinfo input format.)
(./TestCrash.aux)
./TestCrash.texi:2741232: Undefined control sequence.
<argument> \relative 
                     
\xeatspaces ...expandafter \trim@ \expandafter {#1
                                                   }
\dosubindwrite ...ks 0}\xdef \indexsorttmp {\temp 
                                                  }}\edef \temp {\write \wri...

\safewhatsit ... \else \vskip -\whatsitskip \fi #1
                                                  \ifx \lastskipmacro \zeros...

\dosubind ...dcsname }\safewhatsit \dosubindwrite 
                                                  }\fi 
l.1 @findex @xeatspaces address@hidden }
                                    
...
l.16 @funindex \relative
                        
? ^Z
[1]+  Stopped                 texi2pdf TestCrash.texi