[Condor-users] more on adding extra classad attributes

["Andrey Kaliazin" <A.Kaliazin@xxxxxxxxxxx>]

hello everyone,

I have successfully added some attributes to machine ClassAds (Condor v.
6.6.6, Windows XP)
using environment variables: 

# condor_config.local
...
ENV_CYGWIN	= "$ENV(CYGWIN_ROOT)"
ENV_ROOM	= "$ENV(LOCATION_ROOM)"
STARTD_EXPRS = ENV_CYGWIN, ENV_ROOM

The idea was to use these variables to run specific jobs on PCs
where cygwin and/or other applications are installed. 
And it works fine as long as the environment variable CYGWIN_ROOT (in this
case) is defined.
But if I use this generic condor_config.local on those machines where the
variable does not exist, 
then STARTD fails to start complaining in StartLog -
...
8/10 17:33:12 ERROR "Can't find CYGWIN_ROOT in environment!" at line 392 in
file ..\src\condor_c++_util\config.C

The question is if it is possible to change this behaviour from complaining
to returning something like "UNDEFINED" or at least just an empty string ""
?

Otherwise it is quite handy way of publishing extra attributes.

thanks,

Andrey