Error while trying to build from svn checkout

[Michael Lam]

I got the following when I tried to build from the latest SVN checkout. 
I am building on Linux.

dmake:  Error: -- `sg25.sdv' not found, and can't be made
1 module(s):
    extras
need(s) to be rebuilt

Reason(s):

ERROR: error 65280 occurred while making 
/project/ooo/main/extras/source/gallery/gallery_system

where would I get that file?

Thanks
Michael