[yocto] Configuring CVS to work through a proxy?

[Daryl Spitzer]

I followed the "Building an Image" instructions in the Yocto Project
Quick Start (on a newly configured machine running Ubuntu 11.04 (64
bit), and got an error.  The contents of the failure logfile is:

NOTE: fetch http://anonymous@autobuilder.yoctoproject.org/sources/config_cvs.sv.gnu.org__20080123.tar.gz
NOTE: Fetch cvs://anonymous@cvs.sv.gnu.org/cvsroot/config;module=config;method=pserver;date=20080123
cvs [checkout aborted]: connect to cvs.sv.gnu.org(140.186.70.72):2401
failed: Connection timed out
ERROR: Function 'Fetcher failure for URL:
'cvs://anonymous@cvs.sv.gnu.org/cvsroot/config;module=config;method=pserver;date=20080123'.
Unable to fetch URL
cvs://anonymous@cvs.sv.gnu.org/cvsroot/config;module=config;method=pserver;date=20080123
from any source.' failed

I'm guessing this problem is because I haven't configured CVS to work
through my employer's HTTP proxy.

I did a search, and didn't find any definitive instructions for
configuring CVS.  (In fact, I found
http://www.cygwin.com/ml/kawa/2003-q3/msg00069.html, which I'm hoping
is out-of-date since it talks about a patch, which—8 years ago at
least—wasn't included in GNU CVS.  I did try defining the CVS_PROXY
environment variable as directed in that page just in case the CVS
build I'm using includes that patch—but I got the same build error.)

Can anyone point me to up-to-date instructions for configuring CVS to
work through a proxy?

And what command-line can I use to test it?

--
Daryl