environment variables (V2)

From: brock_peabody (bpyama_at_[hidden])
Date: 2003-10-16 18:07:15

How does one access an environment variable in a jam file? For 
instance, I want to stage all of my exe's in one directory on my 
windows box, but in another on my linux box:

stage exe : project : <location>$(EXE_DESTINATION) ;

Actually, it would be better if there were a different way of doing 
it besides environment variables. Any ideas?

Also, I really like Boost.Build, but it is very hard to get going. 
Is there some documentation besides the manual that I don't know 
about? When I look through the boost jam files for examples most of 
what I see is undocumented. I know this is a work in progress. 
Would it help for a neophyte like me to catalog undocumented 
keywords?

Thanks,
Brock