[Boost-build] Jamfile feature request - bjam version check

Subject: [Boost-build] Jamfile feature request - bjam version check
From: Beman Dawes (bdawes_at_[hidden])
Date: 2008-12-05 11:45:43

We are trying to make the boost doc build more robust. I just ran into a 
problem because my version of bjam was older than the version required 
by the doc Jamfile. This is, of course, entirely my fault, but it would 
be very helpful if an explicit error message appeared telling me what an 
idiot I am for forgetting to keep my bjam up to date.

This isn't the first time that I've had problems because a certain 
version of bjam was required for some build to work. Perhaps Jamfiles 
could have a feature that says, in effect, "version n.nn or later of 
bjam is required, but the current version is earlier than that."

If this  condition isn't met, the build should terminate with a clear 
error indication.

Thanks,

--Beman