[Boost-build] Referring to a project from outside a Boost tree

Subject: [Boost-build] Referring to a project from outside a Boost tree
From: Edward Diener (eldiener_at_[hidden])
Date: 2011-06-02 12:39:25

For my sandbox library, tested from outside of a Boost tree, I wanted to 
try use the unit test framework. I looked how Boost libraries others do 
this and noticed a reference to the unit test framework as 
'/boost/test//boost_unit_test_framework/<link>static'. But if I specify 
this from outside a Boost tree, how do I tell Boost Build how to find 
this project ?

For including header files I used the common technique of setting 
$(BOOST_ROOT) to a Boost tree and then having project requirements of 
'<include>.&&$(BOOST_ROOT)'. Is there a similar technique for having the 
Build system find a Boost project in a Boost tree ?