'mail all' fails

[David Bobroff]

When compiling CVS ChangeLog 1.2721 it bailed out like this:

All snippets are up to date...
Compiling ./out/preface.texi...
Processing include: introduction.itely
Reading introduction.itely...
Dissecting...Traceback (most recent call last):
  File "../../scripts/lilypond-book.py", line 1260, in ?
  File "../../scripts/lilypond-book.py", line 1255, in main
  File "../../scripts/lilypond-book.py", line 1180, in do_file
  File "../../scripts/lilypond-book.py", line 1177, in process_include
  File "../../scripts/lilypond-book.py", line 1141, in do_file
  File "../../scripts/lilypond-book.py", line 888, in
find_toplevel_snippets
RuntimeError: maximum recursion limit exceeded
make[2]: *** [out/lilypond.nexi] Error 1
make[2]: Leaving directory `/usr/src/lilypond/Documentation/user'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/usr/src/lilypond/Documentation'
make: *** [all] Error 2
address@hidden lilypond]#

-David