Building the Docs with checked out code downoads old dmd

[yawniek via Digitalmars-d-learn]

i'm trying to build the docs as per
http://wiki.dlang.org/Building_DMD#Building_the_Docs

i have a working setup to build the latest dmd/druntime/phobos
but somehow the makefile tries to download an old dmd version and 
my bandwith currently is a bit restricted and i want an offline 
version.

also the documentation is a bit unclear on what actually happens 
and is being built.

would be really helpful.