1 # Copyright 2017 Rene Rivera
2 # Distributed under the Boost Software License, Version 1.0.
3 # (See accompanying file LICENSE_1_0.txt or copy at
4 # http://www.boost.org/LICENSE_1_0.txt)
6 # This feature is used to allow specific generators to run. For example, QT
7 # tools can only be invoked when QT library is used. In that case, <allow>qt
8 # will be in usage requirement of the library.