Err, what is going on here...?
+ bzr update trunk -v
Tree is up to date at revision 108646 of branch /export/home/tools/emacs/trunk
[...]
Your system has the required tools, running autoreconf...
autoreconf: 'configure.ac' and 'configure.in' both present.
autoreconf: proceeding with 'configure.ac'
[...]
/tools/emacs/trunk/build-aux/missing: Unknown `--is-lightweight' option
Try `/tools/emacs/trunk/build-aux/missing --help' for more information
configure: WARNING: 'missing' script is too old or missing
The Emacs trunk is currently at r118003, so you seem to be missing about
10000 revisions. I'm going to guess that your copy of the Emacs repo is
messed up...