"make web-doc top-web" fails at regression

[Heikki Johannes Junes]

After the last header file (I checked it was alphabetically the last file
in .../regression/ -directory) compiling stopped:

---------
paper output to `lily-1494261478.tex'...

dependencies output to `lily-1494261478.dep'...
Now processing: `lily-2043840617.ly'
Parsing...
Interpreting music...[8][16][24][26]
Preprocessing elements...
Calculating column positions... [3][6][9][12][15][18][21][24][26]
paper output to `lily-2043840617.tex'...

dependencies output to `lily-2043840617.dep'...
header field `texidoc' to `lily-441308853.texidoc'...
writing header field `texidoc' to `lily-594023359.texidoc'...
... (skipped very many fields with just number changed)
writing header field `texidoc' to `lily-2043840617.texidoc'...
Traceback (most recent call last):
  File "../../scripts/lilypond-book.py", line 1467, in ?
  File "../../scripts/lilypond-book.py", line 1366, in do_file
  File "../../scripts/lilypond-book.py", line 1149, in compile_all_files
  File "../../scripts/lilypond-book.py", line 1149, in <lambda>
  File "/usr/lib/python2.2/pre.py", line 179, in sub
    return pattern.sub(repl, string, count)
  File "/usr/lib/python2.2/pre.py", line 344, in sub
    return self.subn(repl, string, count)[0]
  File "/usr/lib/python2.2/pre.py", line 366, in subn
    repl = pcre_expand(_Dummy, repl)
TypeError: 'NoneType' object is not callable
make[1]: *** [out-www/regression.texi] Error 1
make[1]: Leaving directory
`/home/hjunes/rpm/BUILD/lilypond-1.6.2/input/regression'
make: *** [web-doc] Error 2
error: Bad exit status from /home/hjunes/rpm/tmp/rpm-tmp.33367 (%build)

It would be nice to be able to compile the documentation also.  Version
1.6.0.uu1 was the last one from which it was possible to compile the
documentation and, as a consequence, all rpms. Now that the code have been
improved, however, building the documentation fails and
"rpm -ba lilypond.mandrake.spec" fails as well at the same point.

      Heikki