[boost] configure behavior is strange (writing to home dir)

From: Neal Becker (ndbecker2_at_[hidden])
Date: 2006-12-12 13:11:34

I just grabbed RC_1_34_0.  I ran configure and was surprised to see:
Generating Boost.Build configuration in /home/nbecker/user-config.jam...

That's not really expected behavior, to write to my home dir.  Probably not
really useful either if I build as a different user.  Why don't we just
write the the build dir?