Possible bug: Makefile crashed with maintainerclean

[Robert Clausecker]

When I execute the Lilypond-Makefile with the maintainerclean-option, I
get this error:

$ make maintainerclean
... lots of output ...
make --no-builtin-rules local-distclean
make[1]: Entering directory `/home/robert/lilypond'
make[1]: *** No rule to make target `/home/robert/lilypond/configure',
needed by `config.make'.  Stop.
make[1]: Leaving directory `/home/robert/lilypond'
make: *** [maintainerclean] Fehler 2

where Fehler means error. This happens on a plain checkout of the
sourcecode and autogen afterwards. My platform is ubuntu 10.04 linux
x64, I use trunk.

Regards, Robert Clausecker