Bizarre rebuild errors

[Daniel Jacobowitz]

Almost every time I cvs update recently, either version.h or bfd.h ends up
empty when they're regenerated, and the build fails.  Then I go kick it by
hand and everything works.

Does anyone else see this behaviour?  Any ideas where to look?  I can't
figure out how it's happening, and I spent quite a bit of time trying to
work it out yesterday.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer