Experimental support for '[ on target rule ]' in jam,
so that you can access target-specific variables. It
is crunchy right now, in that the list of things you can
do inside []'s is limited to (a) user-defined rules and
(b) the "return" statement.
=== computer.perforce.com:1666: Change 21437 by seiwald@golly-seiwald on 2001/03/23 10:43:34
Tweaked my earlier version of documenting [ rule ] to explicitly
show both forms ( [ rule ... ] and [ on targ rule ... ] ) - rmg