hg build error

[Guido Ostkamp]

Hello,

I've got a clone of the main 'hg' repository <http://selenic.com/repo/hg> 
here.

When I do a 'make clean' and a 'make all' I get the following errors:

make[1]: Entering directory `/home/ostkamp/hg/doc'
python gendoc.py > hg.1.gendoc.txt
Traceback (most recent call last):
   File "gendoc.py", line 4, in <module>
     from mercurial.commands import table, globalopts
   File "../mercurial/commands.py", line 11, in <module>
     import hg, util, revlog, bundlerepo, extensions
   File "../mercurial/hg.py", line 12, in <module>
     import localrepo, bundlerepo, httprepo, sshrepo, statichttprepo
   File "../mercurial/localrepo.py", line 11, in <module>
     import changelog, dirstate, filelog, manifest, context, weakref
   File "../mercurial/changelog.py", line 8, in <module>
     from revlog import *
   File "../mercurial/revlog.py", line 15, in <module>
     import binascii, changegroup, errno, ancestor, mdiff, os
   File "../mercurial/mdiff.py", line 8, in <module>
     import bdiff, mpatch, re, struct, util, md5
ImportError: No module named bdiff
make[1]: *** [hg.1.gendoc.txt] Error 1
make[1]: Leaving directory `/home/ostkamp/hg/doc'
make: *** [doc] Error 2

This happens only once. A second 'make all' shows no errors.

Is this problem known?

Regards

Guido