cvs checkout and build of binutils

[Doug Evans]

Alan Modra writes:
 > Yes.  Note that *not* using -d with cvs update will occasionally fail to
 > do the right thing, for instance when someone adds a new sub-directory
 > to one of the binutils dirs.
 > 
 > There are at least three ways to check out and update binutils trees
 > that I can think of:
 > a) Always use cvs co binutils, ie. avoid cvs update

I don't know why people shy away from this one.
[setting aside issues of cvs modules not being well designed,
we are talking about workarounds afterall]